diff --git a/bower.json b/bower.json
index 121ffa4b..129cf33c 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "jquery.fancytree",
   "description": "JavaScript tree view / tree grid plugin with support for keyboard, inline editing, filtering, checkboxes, drag'n'drop, and lazy loading",
-  "version": "2.30.3-0",
+  "version": "2.31.0",
   "main": [
     "dist/jquery.fancytree-all-deps.min.js"
   ],
@@ -47,4 +47,4 @@
     "jquery-ui": ">=1.8.6"
   },
   "devDependencies": {}
-}
+}
\ No newline at end of file
diff --git a/dist/LICENSE.txt b/dist/LICENSE.txt
index f19d80a7..959cf1c1 100644
--- a/dist/LICENSE.txt
+++ b/dist/LICENSE.txt
@@ -1,5 +1,5 @@
 Copyright 2008-2019 Martin Wendt,
-http://wwWendt.de/
+https://wwWendt.de/
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/dist/jquery.fancytree-all-deps.js b/dist/jquery.fancytree-all-deps.js
index 718394c8..d2bcec78 100644
--- a/dist/jquery.fancytree-all-deps.js
+++ b/dist/jquery.fancytree-all-deps.js
@@ -1,4 +1,4 @@
-/*! jQuery Fancytree Plugin - 2.30.2 - 2019-01-13T08:17:01Z
+/*! jQuery Fancytree Plugin - 2.31.0 - 2019-05-31T11:32:38Z
   * https://github.com/mar10/fancytree
   * Copyright (c) 2019 Martin Wendt; Licensed MIT
  */
@@ -1361,12 +1361,12 @@ var uniqueId = $.fn.extend( {
  * Tree view control with support for lazy loading and much more.
  * https://github.com/mar10/fancytree/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 /** Core Fancytree module.
@@ -1402,8 +1402,8 @@ var uniqueId = $.fn.extend( {
 		attr,
 		FT = null, // initialized below
 		TEST_IMG = new RegExp(/\.|\//), // strings are considered image urls if they contain '.' or '/'
-		REX_HTML = /[&<>"'\/]/g, // Escape those characters
-		REX_TOOLTIP = /[<>"'\/]/g, // Don't escape `&` in tooltips
+		REX_HTML = /[&<>"'/]/g, // Escape those characters
+		REX_TOOLTIP = /[<>"'/]/g, // Don't escape `&` in tooltips
 		RECURSIVE_REQUEST_ERROR = "$recursive_request",
 		ENTITY_MAP = {
 			"&": "&amp;",
@@ -1623,28 +1623,30 @@ var uniqueId = $.fn.extend( {
 			target = {};
 		}
 		if (i === length) {
-			throw "need at least two args";
+			throw Error("need at least two args");
 		}
 		for (; i < length; i++) {
 			// Only deal with non-null/undefined values
 			if ((options = arguments[i]) != null) {
 				// Extend the base object
 				for (name in options) {
-					src = target[name];
-					copy = options[name];
-					// Prevent never-ending loop
-					if (target === copy) {
-						continue;
-					}
-					// Recurse if we're merging plain objects
-					// (NOTE: unlike $.extend, we don't merge arrays, but relace them)
-					if (copy && $.isPlainObject(copy)) {
-						clone = src && $.isPlainObject(src) ? src : {};
-						// Never move original objects, clone them
-						target[name] = _simpleDeepMerge(clone, copy);
-						// Don't bring in undefined values
-					} else if (copy !== undefined) {
-						target[name] = copy;
+					if (options.hasOwnProperty(name)) {
+						src = target[name];
+						copy = options[name];
+						// Prevent never-ending loop
+						if (target === copy) {
+							continue;
+						}
+						// Recurse if we're merging plain objects
+						// (NOTE: unlike $.extend, we don't merge arrays, but replace them)
+						if (copy && $.isPlainObject(copy)) {
+							clone = src && $.isPlainObject(src) ? src : {};
+							// Never move original objects, clone them
+							target[name] = _simpleDeepMerge(clone, copy);
+							// Don't bring in undefined values
+						} else if (copy !== undefined) {
+							target[name] = copy;
+						}
 					}
 				}
 			}
@@ -1747,11 +1749,10 @@ var uniqueId = $.fn.extend( {
 			return $.Deferred(function() {
 				this.resolve();
 			}).promise();
-		} else {
-			return $.Deferred(function() {
-				this.resolveWith(context, argArray);
-			}).promise();
 		}
+		return $.Deferred(function() {
+			this.resolveWith(context, argArray);
+		}).promise();
 	}
 
 	function _getRejectedPromise(context, argArray) {
@@ -1759,11 +1760,10 @@ var uniqueId = $.fn.extend( {
 			return $.Deferred(function() {
 				this.reject();
 			}).promise();
-		} else {
-			return $.Deferred(function() {
-				this.rejectWith(context, argArray);
-			}).promise();
 		}
+		return $.Deferred(function() {
+			this.rejectWith(context, argArray);
+		}).promise();
 	}
 
 	function _makeResolveFunc(deferred, context) {
@@ -1969,6 +1969,11 @@ var uniqueId = $.fn.extend( {
 			for (var i = 0, l = children.length; i < l; i++) {
 				this.children.push(new FancytreeNode(this, children[i]));
 			}
+			this.tree._callHook(
+				"treeStructureChanged",
+				this.tree,
+				"setChildren"
+			);
 		},
 		/**
 		 * Append (or insert) a list of child nodes.
@@ -2146,12 +2151,14 @@ var uniqueId = $.fn.extend( {
 				IGNORE_MAP = { children: true, expanded: true, parent: true }; // TODO: should be global
 
 			for (name in patch) {
-				v = patch[name];
-				if (!IGNORE_MAP[name] && !$.isFunction(v)) {
-					if (NODE_ATTR_MAP[name]) {
-						this[name] = v;
-					} else {
-						this.data[name] = v;
+				if (patch.hasOwnProperty(name)) {
+					v = patch[name];
+					if (!IGNORE_MAP[name] && !$.isFunction(v)) {
+						if (NODE_ATTR_MAP[name]) {
+							this[name] = v;
+						} else {
+							this.data[name] = v;
+						}
 					}
 				}
 			}
@@ -2247,7 +2254,7 @@ var uniqueId = $.fn.extend( {
 		 * @param {*} msg string or object or array of such
 		 */
 		error: function(msg) {
-			if (this.options.debugLevel >= 1) {
+			if (this.tree.options.debugLevel >= 1) {
 				Array.prototype.unshift.call(arguments, this.toString());
 				consoleApply("error", arguments);
 			}
@@ -2286,6 +2293,16 @@ var uniqueId = $.fn.extend( {
 			});
 			return res;
 		},
+		/** Find a node relative to self.
+		 *
+		 * @param {number|string} where The keyCode that would normally trigger this move,
+		 *		or a keyword ('down', 'first', 'last', 'left', 'parent', 'right', 'up').
+		 * @returns {FancytreeNode}
+		 * @since v2.31
+		 */
+		findRelatedNode: function(where, includeHidden) {
+			return this.tree.findRelatedNode(this, where, includeHidden);
+		},
 		/* Apply selection state (internal use only) */
 		_changeSelectStatusAttrs: function(state) {
 			var changed = false,
@@ -2344,6 +2361,10 @@ var uniqueId = $.fn.extend( {
 
 			this.visit(function(node) {
 				node._changeSelectStatusAttrs(flag);
+				if (node.radiogroup) {
+					// #931: don't (de)select this branch
+					return "skip";
+				}
 			});
 			this.fixSelection3FromEndNodes(callOpts);
 		},
@@ -2399,11 +2420,12 @@ var uniqueId = $.fn.extend( {
 							}
 						}
 					}
+					// eslint-disable-next-line no-nested-ternary
 					state = allSelected
 						? true
 						: someSelected
-							? undefined
-							: false;
+						? undefined
+						: false;
 				} else {
 					// This is an end-node: simply report the status
 					unselState = FT.evalOption(
@@ -2415,6 +2437,15 @@ var uniqueId = $.fn.extend( {
 					);
 					state = unselState == null ? !!node.selected : !!unselState;
 				}
+				// #939: Keep a `partsel` flag that was explicitly set on a lazy node
+				if (
+					node.partsel &&
+					!node.selected &&
+					node.lazy &&
+					node.children == null
+				) {
+					state = undefined;
+				}
 				node._changeSelectStatusAttrs(state);
 				return state;
 			}
@@ -2463,6 +2494,7 @@ var uniqueId = $.fn.extend( {
 						}
 					}
 				}
+				// eslint-disable-next-line no-nested-ternary
 				state = allSelected ? true : someSelected ? undefined : false;
 				node._changeSelectStatusAttrs(state);
 			});
@@ -2555,19 +2587,18 @@ var uniqueId = $.fn.extend( {
 			});
 			return res.join(separator);
 		},
-		/** Return the parent keys separated by options.keyPathSeparator, e.g. "id_1/id_17/id_32".
+		/** Return the parent keys separated by options.keyPathSeparator, e.g. "/id_1/id_17/id_32".
+		 *
+		 * (Unlike `node.getPath()`, this method prepends a "/" and inverts the first argument.)
+		 *
+		 * @see FancytreeNode#getPath
 		 * @param {boolean} [excludeSelf=false]
 		 * @returns {string}
 		 */
 		getKeyPath: function(excludeSelf) {
-			var path = [],
-				sep = this.tree.options.keyPathSeparator;
-			this.visitParents(function(n) {
-				if (n.parent) {
-					path.unshift(n.key);
-				}
-			}, !excludeSelf);
-			return sep + path.join(sep);
+			var sep = this.tree.options.keyPathSeparator;
+
+			return sep + this.getPath(!excludeSelf, "key", sep);
 		},
 		/** Return the last child of this node or null.
 		 * @returns {FancytreeNode | null}
@@ -2631,6 +2662,30 @@ var uniqueId = $.fn.extend( {
 			}
 			return l;
 		},
+		/** Return a string representing the hierachical node path, e.g. "a/b/c".
+		 * @param {boolean} [includeSelf=true]
+		 * @param {string | function} [part="title"] node property name or callback
+		 * @param {string} [separator="/"]
+		 * @returns {string}
+		 * @since v2.31
+		 */
+		getPath: function(includeSelf, part, separator) {
+			includeSelf = includeSelf !== false;
+			part = part || "title";
+			separator = separator || "/";
+
+			var val,
+				path = [],
+				isFunc = $.isFunction(part);
+
+			this.visitParents(function(n) {
+				if (n.parent) {
+					val = isFunc ? part(n) : n[part];
+					path.unshift(val);
+				}
+			}, includeSelf);
+			return path.join(separator);
+		},
 		/** Return the predecessor node (under the same parent) or null.
 		 * @returns {FancytreeNode | null}
 		 */
@@ -2857,13 +2912,39 @@ var uniqueId = $.fn.extend( {
 		isVisible: function() {
 			var i,
 				l,
+				n,
+				hasFilter = this.tree.enableFilter,
 				parents = this.getParentList(false, false);
 
+			// TODO: check $(n.span).is(":visible")
+			// i.e. return false for nodes (but not parents) that are hidden
+			// by a filter
+			if (hasFilter && !this.match && !this.subMatchCount) {
+				this.debug(
+					"isVisible: HIDDEN (" +
+						hasFilter +
+						", " +
+						this.match +
+						", " +
+						this.match +
+						")"
+				);
+				return false;
+			}
+
 			for (i = 0, l = parents.length; i < l; i++) {
-				if (!parents[i].expanded) {
+				n = parents[i];
+
+				if (!n.expanded) {
+					this.debug("isVisible: HIDDEN (parent collapsed)");
 					return false;
 				}
+				// if (hasFilter && !n.match && !n.subMatchCount) {
+				// 	this.debug("isVisible: HIDDEN (" + hasFilter + ", " + this.match + ", " + this.match + ")");
+				// 	return false;
+				// }
 			}
+			this.debug("isVisible: VISIBLE");
 			return true;
 		},
 		/** Deprecated.
@@ -2883,7 +2964,7 @@ var uniqueId = $.fn.extend( {
 		load: function(forceReload) {
 			var res,
 				source,
-				that = this,
+				self = this,
 				wasExpanded = this.isExpanded();
 
 			_assert(this.isLazy(), "load() requires a lazy node");
@@ -2909,11 +2990,11 @@ var uniqueId = $.fn.extend( {
 			if (wasExpanded) {
 				this.expanded = true;
 				res.always(function() {
-					that.render();
+					self.render();
 				});
 			} else {
 				res.always(function() {
-					that.renderStatus(); // fix expander icon to 'loaded'
+					self.renderStatus(); // fix expander icon to 'loaded'
 				});
 			}
 			return res;
@@ -2926,7 +3007,7 @@ var uniqueId = $.fn.extend( {
 		 */
 		makeVisible: function(opts) {
 			var i,
-				that = this,
+				self = this,
 				deferreds = [],
 				dfd = new $.Deferred(),
 				parents = this.getParentList(false, false),
@@ -2936,15 +3017,15 @@ var uniqueId = $.fn.extend( {
 
 			// Expand bottom-up, so only the top node is animated
 			for (i = len - 1; i >= 0; i--) {
-				// that.debug("pushexpand" + parents[i]);
+				// self.debug("pushexpand" + parents[i]);
 				deferreds.push(parents[i].setExpanded(true, opts));
 			}
 			$.when.apply($, deferreds).done(function() {
 				// All expands have finished
-				// that.debug("expand DONE", scroll);
+				// self.debug("expand DONE", scroll);
 				if (scroll) {
-					that.scrollIntoView(effects).done(function() {
-						// that.debug("scroll DONE");
+					self.scrollIntoView(effects).done(function() {
+						// self.debug("scroll DONE");
 						dfd.resolve();
 					});
 				} else {
@@ -2976,6 +3057,7 @@ var uniqueId = $.fn.extend( {
 				}
 			}
 			var pos,
+				tree = this.tree,
 				prevParent = this.parent,
 				targetParent =
 					mode === "child" ? targetNode : targetNode.parent;
@@ -3057,10 +3139,10 @@ var uniqueId = $.fn.extend( {
 				targetParent.triggerModifyChild("add", this);
 			}
 			// Handle cross-tree moves
-			if (this.tree !== targetNode.tree) {
+			if (tree !== targetNode.tree) {
 				// Fix node.tree for all source nodes
 				//			_assert(false, "Cross-tree move is not yet implemented.");
-				this.warn("Cross-tree moveTo is experimantal!");
+				this.warn("Cross-tree moveTo is experimental!");
 				this.visit(function(n) {
 					// TODO: fix selection state and activation, ...
 					n.tree = targetNode.tree;
@@ -3071,6 +3153,7 @@ var uniqueId = $.fn.extend( {
 			// if( !targetParent.expanded ){
 			//   prevParent.ul.removeChild(this.li);
 			// }
+			tree._callHook("treeStructureChanged", tree, "moveTo");
 
 			// Update HTML markup
 			if (!prevParent.isDescendantOf(targetParent)) {
@@ -3126,117 +3209,38 @@ var uniqueId = $.fn.extend( {
 		 * @returns {$.Promise}
 		 */
 		navigate: function(where, activate) {
-			var i,
-				parents,
-				res,
-				handled = true,
-				KC = $.ui.keyCode,
-				sib = null;
-
-			// Navigate to node
-			function _goto(n) {
-				if (n) {
-					// setFocus/setActive will scroll later (if autoScroll is specified)
-					try {
-						n.makeVisible({ scrollIntoView: false });
-					} catch (e) {} // #272
-					// Node may still be hidden by a filter
-					if (!$(n.span).is(":visible")) {
-						n.debug("Navigate: skipping hidden node");
-						n.navigate(where, activate);
-						return;
-					}
-					return activate === false ? n.setFocus() : n.setActive();
-				}
-			}
+			var node,
+				KC = $.ui.keyCode;
 
+			// Handle optional expand/collapse action for LEFT/RIGHT
 			switch (where) {
-				case KC.BACKSPACE:
-					if (this.parent && this.parent.parent) {
-						res = _goto(this.parent);
-					}
-					break;
-				case KC.HOME:
-					this.tree.visit(function(n) {
-						// goto first visible node
-						if ($(n.span).is(":visible")) {
-							res = _goto(n);
-							return false;
-						}
-					});
-					break;
-				case KC.END:
-					this.tree.visit(function(n) {
-						// goto last visible node
-						if ($(n.span).is(":visible")) {
-							res = n;
-						}
-					});
-					if (res) {
-						res = _goto(res);
-					}
-					break;
+				case "left":
 				case KC.LEFT:
 					if (this.expanded) {
-						this.setExpanded(false);
-						res = _goto(this);
-					} else if (this.parent && this.parent.parent) {
-						res = _goto(this.parent);
+						return this.setExpanded(false);
 					}
 					break;
+				case "right":
 				case KC.RIGHT:
 					if (!this.expanded && (this.children || this.lazy)) {
-						this.setExpanded();
-						res = _goto(this);
-					} else if (this.children && this.children.length) {
-						res = _goto(this.children[0]);
-					}
-					break;
-				case KC.UP:
-					sib = this.getPrevSibling();
-					// #359: skip hidden sibling nodes, preventing a _goto() recursion
-					while (sib && !$(sib.span).is(":visible")) {
-						sib = sib.getPrevSibling();
-					}
-					while (
-						sib &&
-						sib.expanded &&
-						sib.children &&
-						sib.children.length
-					) {
-						sib = sib.children[sib.children.length - 1];
-					}
-					if (!sib && this.parent && this.parent.parent) {
-						sib = this.parent;
-					}
-					res = _goto(sib);
-					break;
-				case KC.DOWN:
-					if (
-						this.expanded &&
-						this.children &&
-						this.children.length
-					) {
-						sib = this.children[0];
-					} else {
-						parents = this.getParentList(false, true);
-						for (i = parents.length - 1; i >= 0; i--) {
-							sib = parents[i].getNextSibling();
-							// #359: skip hidden sibling nodes, preventing a _goto() recursion
-							while (sib && !$(sib.span).is(":visible")) {
-								sib = sib.getNextSibling();
-							}
-							if (sib) {
-								break;
-							}
-						}
+						return this.setExpanded();
 					}
-					res = _goto(sib);
 					break;
-				default:
-					handled = false;
 			}
-			return res || _getResolvedPromise();
+			// Otherwise activate or focus the related node
+			node = this.findRelatedNode(where);
+			if (node) {
+				// setFocus/setActive will scroll later (if autoScroll is specified)
+				try {
+					node.makeVisible({ scrollIntoView: false });
+				} catch (e) {} // #272
+				if (activate === false) {
+					return node.setFocus();
+				}
+				return node.setActive();
+			}
+			this.warn("Could not find related node '" + where + "'.");
+			return _getResolvedPromise();
 		},
 		/**
 		 * Remove this node (not allowed for system root).
@@ -3312,7 +3316,7 @@ var uniqueId = $.fn.extend( {
 			var res,
 				parent = this.parent,
 				pos = $.inArray(this, parent.children),
-				that = this;
+				self = this;
 
 			_assert(
 				this.isPagingNode(),
@@ -3322,7 +3326,7 @@ var uniqueId = $.fn.extend( {
 			res = this.tree._callHook("nodeLoadChildren", this, source);
 			res.done(function(data) {
 				// New nodes are currently children of `this`.
-				var children = that.children;
+				var children = self.children;
 				// Prepend newly loaded child nodes to `this`
 				// Move new children after self
 				for (i = 0; i < children.length; i++) {
@@ -3334,14 +3338,14 @@ var uniqueId = $.fn.extend( {
 				);
 
 				// Remove self
-				that.children = null;
-				that.remove();
+				self.children = null;
+				self.remove();
 				// Redraw new nodes
 				parent.render();
 				// TODO: set node.partload = false if this was tha last paging node?
 				// parent.addPagingNode(false);
 			}).fail(function() {
-				that.setExpanded();
+				self.setExpanded();
 			});
 			return res;
 			// $.error("Not implemented: replaceWith()");
@@ -3399,7 +3403,9 @@ var uniqueId = $.fn.extend( {
 		 */
 		scrollIntoView: function(effects, options) {
 			if (options !== undefined && _isNode(options)) {
-				throw "scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead.";
+				throw Error(
+					"scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead."
+				);
 			}
 			// The scroll parent is typically the plain tree's <UL> container.
 			// For ext-table, we choose the nearest parent that has `position: relative`
@@ -3438,7 +3444,7 @@ var uniqueId = $.fn.extend( {
 				$scrollParent[0] === document ||
 				$scrollParent[0] === document.body
 			) {
-				// `document` may returned by $().scrollParent(), if nothing is found,
+				// `document` may be returned by $().scrollParent(), if nothing is found,
 				// but would not work: (see #894)
 				this.debug(
 					"scrollIntoView(): normalizing scrollParent to 'window':",
@@ -3446,13 +3452,13 @@ var uniqueId = $.fn.extend( {
 				);
 				$scrollParent = $(window);
 			}
-
+			// eslint-disable-next-line one-var
 			var topNodeY,
 				nodeY,
 				horzScrollbarHeight,
 				containerOffsetTop,
 				dfd = new $.Deferred(),
-				that = this,
+				self = this,
 				nodeHeight = $(this.span).height(),
 				topOfs = opts.scrollOfs.top || 0,
 				bottomOfs = opts.scrollOfs.bottom || 0,
@@ -3465,7 +3471,7 @@ var uniqueId = $.fn.extend( {
 
 			// this.debug("scrollIntoView(), scrollTop=" + scrollTop, opts.scrollOfs);
 			//		_assert($(this.span).is(":visible"), "scrollIntoView node is invisible"); // otherwise we cannot calc offsets
-			if (!$(this.span).is(":visible")) {
+			if (!this.isVisible()) {
 				// We cannot calc offsets for hidden elements
 				this.warn("scrollIntoView(): node is invisible.");
 				return _getResolvedPromise();
@@ -3482,11 +3488,9 @@ var uniqueId = $.fn.extend( {
 					"scrollParent should be a simple element or `window`, not document or body."
 				);
 
-				(containerOffsetTop = $scrollParent.offset().top),
-					(nodeY =
-						$(this.span).offset().top -
-						containerOffsetTop +
-						scrollTop); // relative to scroll parent
+				containerOffsetTop = $scrollParent.offset().top;
+				nodeY =
+					$(this.span).offset().top - containerOffsetTop + scrollTop; // relative to scroll parent
 				topNodeY = topNode
 					? $(topNode.span).offset().top -
 					  containerOffsetTop +
@@ -3514,7 +3518,7 @@ var uniqueId = $.fn.extend( {
 				// outside the upper border
 				if (topNode) {
 					_assert(
-						topNode.isRootNode() || $(topNode.span).is(":visible"),
+						topNode.isRootNode() || topNode.isVisible(),
 						"topNode must be visible"
 					);
 					if (topNodeY < newScrollTop) {
@@ -3524,11 +3528,13 @@ var uniqueId = $.fn.extend( {
 				}
 			}
 
-			if (newScrollTop !== null) {
+			if (newScrollTop === null) {
+				dfd.resolveWith(this);
+			} else {
 				// this.debug("    scrollIntoView(), SET newScrollTop=" + newScrollTop);
 				if (opts.effects) {
 					opts.effects.complete = function() {
-						dfd.resolveWith(that);
+						dfd.resolveWith(self);
 					};
 					$animateTarget.stop(true).animate(
 						{
@@ -3540,8 +3546,6 @@ var uniqueId = $.fn.extend( {
 					$animateTarget[0].scrollTop = newScrollTop;
 					dfd.resolveWith(this);
 				}
-			} else {
-				dfd.resolveWith(this);
 			}
 			return dfd.promise();
 		},
@@ -3619,6 +3623,8 @@ var uniqueId = $.fn.extend( {
 				function(a, b) {
 					var x = a.title.toLowerCase(),
 						y = b.title.toLowerCase();
+
+					// eslint-disable-next-line no-nested-ternary
 					return x === y ? 0 : x > y ? 1 : -1;
 				};
 			cl.sort(cmp);
@@ -3944,6 +3950,7 @@ var uniqueId = $.fn.extend( {
 	 * @property {string} statusClassPropName Property name of FancytreeNode that contains the element which will receive the status classes.
 	 *     Typically "span", but "tr" for table extension.
 	 * @property {object} types Map for shared type specific meta data, used with node.type attribute. @since 2.27
+	 * @property {object} viewport See ext-vieport. @since v2.31
 	 * @property {object} widget Base widget instance.
 	 */
 	function Fancytree(widget) {
@@ -3951,24 +3958,18 @@ var uniqueId = $.fn.extend( {
 		this.$div = widget.element;
 		this.options = widget.options;
 		if (this.options) {
-			if (
-				$.isFunction(this.options.lazyload) &&
-				!$.isFunction(this.options.lazyLoad)
-			) {
-				this.options.lazyLoad = function() {
-					FT.warn(
-						"The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."
-					);
-					return widget.options.lazyload.apply(this, arguments);
-				};
+			if (this.options.lazyload !== undefined) {
+				$.error(
+					"The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."
+				);
 			}
-			if ($.isFunction(this.options.loaderror)) {
+			if (this.options.loaderror !== undefined) {
 				$.error(
 					"The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."
 				);
 			}
 			if (this.options.fx !== undefined) {
-				FT.warn(
+				$.error(
 					"The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."
 				);
 			}
@@ -3984,7 +3985,7 @@ var uniqueId = $.fn.extend( {
 		// allow to init tree.data.foo from <div data-foo=''>
 		this.data = _getElementDataAsDict(this.$div);
 		// TODO: use widget.uuid instead?
-		this._id = $.ui.fancytree._nextId++;
+		this._id = "" + (this.options.treeId || $.ui.fancytree._nextId++);
 		// TODO: use widget.eventNamespace instead?
 		this._ns = ".fancytree-" + this._id; // append for namespaced events
 		this.activeNode = null;
@@ -3997,6 +3998,7 @@ var uniqueId = $.fn.extend( {
 		this.systemFocusElement = null;
 		this.lastQuicksearchTerm = "";
 		this.lastQuicksearchTime = 0;
+		this.viewport = null; // ext-grid
 
 		this.statusClassPropName = "span";
 		this.ariaPropName = "li";
@@ -4018,6 +4020,7 @@ var uniqueId = $.fn.extend( {
 
 		// Create root markup
 		$ul = $("<ul>", {
+			id: "ft-id-" + this._id,
 			class: "ui-fancytree fancytree-container fancytree-plain",
 		}).appendTo(this.$div);
 		this.$container = $ul;
@@ -4139,7 +4142,10 @@ var uniqueId = $.fn.extend( {
 				isMissing = required && this.ext[name] == null,
 				badOrder = !isMissing && before != null && before !== isBefore;
 
-			_assert(thisName && thisName !== name, "invalid or same name");
+			_assert(
+				thisName && thisName !== name,
+				"invalid or same name '" + thisName + "' (require yourself?)"
+			);
 
 			if (isMissing || badOrder) {
 				if (!message) {
@@ -4283,14 +4289,14 @@ var uniqueId = $.fn.extend( {
 		 * @since 2.19
 		 */
 		enableUpdate: function(flag) {
-			flag = flag !== false; // Confusing use of '!'
-			/*jshint -W018 */ if (!!this._enableUpdate === !!flag) {
+			flag = flag !== false;
+			if (!!this._enableUpdate === !!flag) {
 				return flag;
 			}
-			/*jshint +W018 */
 			this._enableUpdate = flag;
 			if (flag) {
 				this.debug("enableUpdate(true): redraw "); //, this._dirtyRoots);
+				this._callHook("treeStructureChanged", this, "enableUpdate");
 				this.render();
 			} else {
 				// 	this._dirtyRoots = null;
@@ -4298,6 +4304,16 @@ var uniqueId = $.fn.extend( {
 			}
 			return !flag; // return previous value
 		},
+		/** Write error to browser console if debugLevel >= 1 (prepending tree info)
+		 *
+		 * @param {*} msg string or object or array of such
+		 */
+		error: function(msg) {
+			if (this.options.debugLevel >= 1) {
+				Array.prototype.unshift.call(arguments, this.toString());
+				consoleApply("error", arguments);
+			}
+		},
 		/** Expand (or collapse) all parent nodes.
 		 *
 		 * This convenience method uses `tree.visit()` and `tree.setExpanded()`
@@ -4308,6 +4324,8 @@ var uniqueId = $.fn.extend( {
 		 * @since 2.30
 		 */
 		expandAll: function(flag, opts) {
+			var prev = this.enableUpdate(false);
+
 			flag = flag !== false;
 			this.visit(function(node) {
 				if (
@@ -4317,6 +4335,7 @@ var uniqueId = $.fn.extend( {
 					node.setExpanded(flag, opts);
 				}
 			});
+			this.enableUpdate(prev);
 		},
 		/**Find all nodes that matches condition.
 		 *
@@ -4347,78 +4366,119 @@ var uniqueId = $.fn.extend( {
 		 * @param {FancytreeNode} [startNode] defaults to first node
 		 * @returns {FancytreeNode} matching node or null
 		 */
-		findNextNode: function(match, startNode, visibleOnly) {
+		findNextNode: function(match, startNode) {
+			//, visibleOnly) {
+			var res = null,
+				firstNode = this.getFirstChild();
+
 			match =
 				typeof match === "string"
 					? _makeNodeTitleStartMatcher(match)
 					: match;
-			startNode = startNode || this.getFirstChild();
-
-			var stopNode = null,
-				parentChildren = startNode.parent.children,
-				matchingNode = null,
-				walkVisible = function(parent, idx, fn) {
-					var i,
-						grandParent,
-						parentChildren = parent.children,
-						siblingCount = parentChildren.length,
-						node = parentChildren[idx];
-					// visit node itself
-					if (node && fn(node) === false) {
-						return false;
+			startNode = startNode || firstNode;
+
+			function _checkNode(n) {
+				// console.log("_check " + n)
+				if (match(n)) {
+					res = n;
+				}
+				if (res || n === startNode) {
+					return false;
+				}
+			}
+			this.visitRows(_checkNode, {
+				start: startNode,
+				includeSelf: false,
+			});
+			// Wrap around search
+			if (!res && startNode !== firstNode) {
+				this.visitRows(_checkNode, {
+					start: firstNode,
+					includeSelf: true,
+				});
+			}
+			return res;
+		},
+		/** Find a node relative to another node.
+		 *
+		 * @param {FancytreeNode} node
+		 * @param {number|string} where The keyCode that would normally trigger this move,
+		 *		or a keyword ('down', 'first', 'last', 'left', 'parent', 'right', 'up').
+		 * @param {boolean} [includeHidden=false] Not yet implemented
+		 * @returns {FancytreeNode|null}
+		 * @since v2.31
+		 */
+		findRelatedNode: function(node, where, includeHidden) {
+			var res = null,
+				KC = $.ui.keyCode;
+
+			switch (where) {
+				case "parent":
+				case KC.BACKSPACE:
+					if (node.parent && node.parent.parent) {
+						res = node.parent;
 					}
-					// visit descendants
-					if (node && node.children && node.expanded) {
-						if (walkVisible(node, 0, fn) === false) {
+					break;
+				case "first":
+				case KC.HOME:
+					// First visible node
+					this.visit(function(n) {
+						if (n.isVisible()) {
+							res = n;
 							return false;
 						}
-					}
-					// visit subsequent siblings
-					for (i = idx + 1; i < siblingCount; i++) {
-						if (walkVisible(parent, i, fn) === false) {
-							return false;
+					});
+					break;
+				case "last":
+				case KC.END:
+					this.visit(function(n) {
+						// last visible node
+						if (n.isVisible()) {
+							res = n;
 						}
+					});
+					break;
+				case "left":
+				case KC.LEFT:
+					if (node.expanded) {
+						node.setExpanded(false);
+					} else if (node.parent && node.parent.parent) {
+						res = node.parent;
 					}
-					// visit parent's subsequent siblings
-					grandParent = parent.parent;
-					if (grandParent) {
-						return walkVisible(
-							grandParent,
-							grandParent.children.indexOf(parent) + 1,
-							fn
-						);
-					} else {
-						// wrap-around: restart with first node
-						return walkVisible(parent, 0, fn);
-					}
-				};
-
-			walkVisible(
-				startNode.parent,
-				parentChildren.indexOf(startNode),
-				function(node) {
-					// Stop iteration if we see the start node a second time
-					if (node === stopNode) {
-						return false;
-					}
-					stopNode = stopNode || node;
-					// Ignore nodes hidden by a filter
-					if (!$(node.span).is(":visible")) {
-						node.debug("quicksearch: skipping hidden node");
-						return;
+					break;
+				case "right":
+				case KC.RIGHT:
+					if (!node.expanded && (node.children || node.lazy)) {
+						node.setExpanded();
+						res = node;
+					} else if (node.children && node.children.length) {
+						res = node.children[0];
 					}
-					// Test if we found a match, but search for a second match if this
-					// was the currently active node
-					if (match(node)) {
-						// node.debug("quicksearch match " + node.title, startNode);
-						matchingNode = node;
-						if (matchingNode !== startNode) {
+					break;
+				case "up":
+				case KC.UP:
+					this.visitRows(
+						function(n) {
+							res = n;
 							return false;
-						}
-					}
-				}
-			);
-			return matchingNode;
+						},
+						{ start: node, reverse: true, includeSelf: false }
+					);
+					break;
+				case "down":
+				case KC.DOWN:
+					this.visitRows(
+						function(n) {
+							res = n;
+							return false;
+						},
+						{ start: node, includeSelf: false }
+					);
+					break;
+				default:
+					this.tree.warn("Unknown relation '" + where + "'.");
+			}
+			return res;
 		},
 		// TODO: fromDict
 		/**
@@ -4708,6 +4768,8 @@ var uniqueId = $.fn.extend( {
 				i,
 				key,
 				node,
+				nodeKey,
+				remain,
 				remainMap,
 				tmpParent,
 				segList,
@@ -4804,25 +4866,27 @@ var uniqueId = $.fn.extend( {
 			}
 			// remainMap contains parent nodes, each with a list of relative sub-paths.
 			// We start loading all of them now, and pass the the list to each loader.
-			for (var nodeKey in remainMap) {
-				var remain = remainMap[nodeKey];
-				// console.log("for(): remain=", remain, "remainMap=", remainMap);
-				// key = remain.segList.shift();
-				// node = __findChild(remain.parent, key);
-				// if (node == null) {  // #576
-				// 	// Issue #576, refactored for v2.27:
-				// 	// The root cause was, that sometimes the wrong parent was used here
-				// 	// to find the next segment.
-				// 	// Falling back to getNodeByKey() was a hack that no longer works if a custom
-				// 	// matcher is used, because we cannot assume that a single segment-key is unique
-				// 	// throughout the tree.
-				// 	self.error("loadKeyPath: error loading child by key '" + key + "' (parent: " + target.parent + ")", target);
-				// 	// 	node = self.getNodeByKey(key);
-				// 	continue;
-				// }
-				subDfd = new $.Deferred();
-				deferredList.push(subDfd);
-				__lazyload(subDfd, remain.parent, remain.pathSegList);
+			for (nodeKey in remainMap) {
+				if (remainMap.hasOwnProperty(nodeKey)) {
+					remain = remainMap[nodeKey];
+					// console.log("for(): remain=", remain, "remainMap=", remainMap);
+					// key = remain.segList.shift();
+					// node = __findChild(remain.parent, key);
+					// if (node == null) {  // #576
+					// 	// Issue #576, refactored for v2.27:
+					// 	// The root cause was, that sometimes the wrong parent was used here
+					// 	// to find the next segment.
+					// 	// Falling back to getNodeByKey() was a hack that no longer works if a custom
+					// 	// matcher is used, because we cannot assume that a single segment-key is unique
+					// 	// throughout the tree.
+					// 	self.error("loadKeyPath: error loading child by key '" + key + "' (parent: " + target.parent + ")", target);
+					// 	// 	node = self.getNodeByKey(key);
+					// 	continue;
+					// }
+					subDfd = new $.Deferred();
+					deferredList.push(subDfd);
+					__lazyload(subDfd, remain.parent, remain.pathSegList);
+				}
 			}
 			// Return a promise that is resolved, when ALL paths were loaded
 			return $.when.apply($, deferredList).promise();
@@ -4948,14 +5012,19 @@ var uniqueId = $.fn.extend( {
 		 * @param {object} [options]
 		 *     Defaults:
 		 *     {start: First top node, reverse: false, includeSelf: true, includeHidden: false}
-		 * @returns {boolean}
+		 * @returns {boolean} false if iteration was cancelled
 		 * @since 2.28
 		 */
 		visitRows: function(fn, opts) {
+			if (!this.rootNode.children) {
+				return false;
+			}
 			if (opts && opts.reverse) {
 				delete opts.reverse;
 				return this._visitRowsUp(fn, opts);
 			}
+			opts = opts || {};
+
 			var i,
 				nextIdx,
 				parent,
@@ -4964,6 +5033,7 @@ var uniqueId = $.fn.extend( {
 				siblingOfs = 0,
 				skipFirstNode = opts.includeSelf === false,
 				includeHidden = !!opts.includeHidden,
+				checkFilter = !includeHidden && this.enableFilter,
 				node = opts.start || this.rootNode.children[0];
 
 			parent = node.parent;
@@ -4974,6 +5044,9 @@ var uniqueId = $.fn.extend( {
 
 				for (i = nextIdx; i < siblings.length; i++) {
 					node = siblings[i];
+					if (checkFilter && !node.match && !node.subMatchCount) {
+						continue;
+					}
 					if (!skipFirstNode && fn(node) === false) {
 						return false;
 					}
@@ -4988,6 +5061,9 @@ var uniqueId = $.fn.extend( {
 						// scoped variable may lead to confusing semantics:
 						/*jshint -W083 */
 						res = node.visit(function(n) {
+							if (checkFilter && !n.match && !n.subMatchCount) {
+								return "skip";
+							}
 							if (fn(n) === false) {
 								return false;
 							}
@@ -5024,6 +5100,9 @@ var uniqueId = $.fn.extend( {
 				if (children[0] === node) {
 					// If this is already the first sibling, goto parent
 					node = parent;
+					if (!node.parent) {
+						break; // first node of the tree
+					}
 					children = parent.children;
 				} else {
 					// Otherwise, goto prev. sibling
@@ -5031,6 +5110,8 @@ var uniqueId = $.fn.extend( {
 					node = children[idx - 1];
 					// If the prev. sibling has children, follow down to last descendant
 					while (
+						// See: https://github.com/eslint/eslint/issues/11302
+						// eslint-disable-next-line no-unmodified-loop-condition
 						(includeHidden || node.expanded) &&
 						node.children &&
 						node.children.length
@@ -5041,7 +5122,7 @@ var uniqueId = $.fn.extend( {
 					}
 				}
 				// Skip invisible
-				if (!includeHidden && !$(node.span).is(":visible")) {
+				if (!includeHidden && !node.isVisible()) {
 					continue;
 				}
 				if (fn(node) === false) {
@@ -5193,7 +5274,7 @@ var uniqueId = $.fn.extend( {
 				// TODO: return promise?
 				var matchNode,
 					stamp,
-					res,
+					_res,
 					focusNode,
 					event = ctx.originalEvent,
 					node = ctx.node,
@@ -5284,7 +5365,7 @@ var uniqueId = $.fn.extend( {
 					case "right":
 					case "up":
 					case "down":
-						res = node.navigate(event.which, activate);
+						_res = node.navigate(event.which, activate);
 						break;
 					default:
 						handled = false;
@@ -5315,6 +5396,7 @@ var uniqueId = $.fn.extend( {
 				var ajax,
 					delay,
 					dfd,
+					res,
 					tree = ctx.tree,
 					node = ctx.node,
 					requestId = Date.now();
@@ -5466,10 +5548,7 @@ var uniqueId = $.fn.extend( {
 					});
 				}
 				// #383: accept and convert ECMAScript 6 Promise
-				if (
-					$.isFunction(source.then) &&
-					$.isFunction(source["catch"])
-				) {
+				if ($.isFunction(source.then) && $.isFunction(source.catch)) {
 					dfd = source;
 					source = new $.Deferred();
 					dfd.then(
@@ -5544,7 +5623,7 @@ var uniqueId = $.fn.extend( {
 				} else {
 					if (ctx.options.postProcess) {
 						// #792: Call postProcess for non-deferred source
-						var res = tree._triggerNodeEvent(
+						res = tree._triggerNodeEvent(
 							"postProcess",
 							ctx,
 							ctx.originalEvent,
@@ -5698,7 +5777,7 @@ var uniqueId = $.fn.extend( {
 			 * @param {EventData} ctx
 			 */
 			nodeRemoveChildren: function(ctx) {
-				var subCtx,
+				var //subCtx,
 					tree = ctx.tree,
 					node = ctx.node,
 					children = node.children;
@@ -5718,7 +5797,7 @@ var uniqueId = $.fn.extend( {
 				this.nodeRemoveChildMarkup(ctx);
 				// Unlink children to support GC
 				// TODO: also delete this.children (not possible using visit())
-				subCtx = $.extend({}, ctx);
+				// subCtx = $.extend({}, ctx);
 				node.triggerModifyChild("remove", null);
 				node.visit(function(n) {
 					n.parent = null;
@@ -5841,8 +5920,11 @@ var uniqueId = $.fn.extend( {
 					}
 					// Create <li><span /> </li>
 					// node.debug("render...");
-					if (!node.li) {
-						//	            node.debug("render... really");
+					if (node.li) {
+						// this.nodeRenderTitle(ctx);
+						this.nodeRenderStatus(ctx);
+					} else {
+						// node.debug("render... really");
 						firstTime = true;
 						node.li = document.createElement("li");
 						node.li.ftnode = node;
@@ -5868,9 +5950,6 @@ var uniqueId = $.fn.extend( {
 								ctx
 							);
 						}
-					} else {
-						// this.nodeRenderTitle(ctx);
-						this.nodeRenderStatus(ctx);
 					}
 					// Allow tweaking after node state was rendered
 					if (opts.renderNode) {
@@ -5927,14 +6006,14 @@ var uniqueId = $.fn.extend( {
 						for (i = 0, l = children.length - 1; i < l; i++) {
 							childNode1 = children[i];
 							childNode2 = childLI.ftnode;
-							if (childNode1 !== childNode2) {
+							if (childNode1 === childNode2) {
+								childLI = childLI.nextSibling;
+							} else {
 								// node.debug("_fixOrder: mismatch at index " + i + ": " + childNode1 + " != " + childNode2);
 								node.ul.insertBefore(
 									childNode1.li,
 									childNode2.li
 								);
-							} else {
-								childLI = childLI.nextSibling;
 							}
 						}
 					}
@@ -6219,10 +6298,10 @@ var uniqueId = $.fn.extend( {
 					cnList.push(cn.expanded);
 				}
 				if (aria) {
-					if (hasChildren !== false) {
-						$ariaElem.attr("aria-expanded", Boolean(node.expanded));
-					} else {
+					if (hasChildren === false) {
 						$ariaElem.removeAttr("aria-expanded");
+					} else {
+						$ariaElem.attr("aria-expanded", Boolean(node.expanded));
 					}
 				}
 				if (node.folder) {
@@ -6492,6 +6571,11 @@ var uniqueId = $.fn.extend( {
 						effect = opts.toggleEffect;
 
 					node.expanded = flag;
+					tree._callHook(
+						"treeStructureChanged",
+						ctx,
+						flag ? "expand" : "collapse"
+					);
 					// Create required markup, but make sure the top UL is hidden, so we
 					// can animate later
 					tree._callHook("nodeRender", ctx, false, false, true);
@@ -6516,7 +6600,20 @@ var uniqueId = $.fn.extend( {
 							// See #716, #717
 							$(node.li).addClass(cn.animating); // #717
 
-							if (!$.isFunction($(node.ul)[effect.effect])) {
+							if ($.isFunction($(node.ul)[effect.effect])) {
+								tree.debug(
+									"use jquery." + effect.effect + " method"
+								);
+								$(node.ul)[effect.effect]({
+									duration: effect.duration,
+									always: function() {
+										// node.debug("fancytree-animating end: " + node.li.className);
+										$(this).removeClass(cn.animating); // #716
+										$(node.li).removeClass(cn.animating); // #717
+										callback();
+									},
+								});
+							} else {
 								// The UI toggle() effect works with the ext-wide extension,
 								// while jQuery.animate() has problems when the title span
 								// has positon: absolute.
@@ -6545,22 +6642,7 @@ var uniqueId = $.fn.extend( {
 										callback();
 									}
 								);
-							} else {
-								tree.debug(
-									"use jquery." + effect.effect + " method"
-								);
-
-								$(node.ul)[effect.effect]({
-									duration: effect.duration,
-									always: function() {
-										// node.debug("fancytree-animating end: " + node.li.className);
-										$(this).removeClass(cn.animating); // #716
-										$(node.li).removeClass(cn.animating); // #717
-										callback();
-									},
-								});
 							}
-
 							return;
 						}
 					}
@@ -6657,18 +6739,6 @@ var uniqueId = $.fn.extend( {
 								.find(".fancytree-title")
 								.focus();
 						}
-					} else {
-						// We cannot set KB focus to a node, so use the tree container
-						// #563, #570: IE scrolls on every call to .focus(), if the container
-						// is partially outside the viewport. So do it only, when absolutely
-						// neccessary:
-						if (
-							$(document.activeElement).closest(
-								".fancytree-container"
-							).length === 0
-						) {
-							$(tree.$container).focus();
-						}
 					}
 					if (opts.aria) {
 						// Set active descendant to node's span ID (create one, if needed)
@@ -6682,6 +6752,20 @@ var uniqueId = $.fn.extend( {
 					}
 					// $(node.span).find(".fancytree-title").focus();
 					this._triggerNodeEvent("focus", ctx);
+
+					// determine if we have focus on or inside tree container
+					var hasFancytreeFocus =
+						document.activeElement === tree.$container.get(0) ||
+						$(document.activeElement, tree.$container).length >= 1;
+
+					if (!hasFancytreeFocus) {
+						// We cannot set KB focus to a node, so use the tree container
+						// #563, #570: IE scrolls on every call to .focus(), if the container
+						// is partially outside the viewport. So do it only, when absolutely
+						// necessary.
+						$(tree.$container).focus();
+					}
+
 					// if( opts.autoActivate ){
 					// 	tree.nodeSetActive(ctx, true);
 					// }
@@ -6725,7 +6809,7 @@ var uniqueId = $.fn.extend( {
 				node._lastSelectIntent = flag; // Confusing use of '!'
 
 				// Nothing to do?
-				/*jshint -W018 */ if (!!node.selected === flag) {
+				if (!!node.selected === flag) {
 					if (opts.selectMode === 3 && node.partsel && !flag) {
 						// If propagation prevented selecting this node last time, we still
 						// want to allow to apply setSelected(false) now
@@ -6733,7 +6817,6 @@ var uniqueId = $.fn.extend( {
 						return flag;
 					}
 				}
-				/*jshint +W018 */
 
 				if (
 					!noEvents &&
@@ -6802,6 +6885,11 @@ var uniqueId = $.fn.extend( {
 						} else {
 							node.children.shift();
 						}
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"clearStatusNode"
+						);
 					}
 				}
 				function _setStatusNode(data, type) {
@@ -6815,6 +6903,11 @@ var uniqueId = $.fn.extend( {
 						tree._callHook("nodeRenderTitle", firstChild);
 					} else {
 						node._setChildren([data]);
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"setStatusNode"
+						);
 						node.children[0].statusNodeType = type;
 						tree.render();
 					}
@@ -6918,6 +7011,7 @@ var uniqueId = $.fn.extend( {
 				tree.$div.find(">ul.fancytree-container").empty();
 				// TODO: call destructors and remove reference loops
 				tree.rootNode.children = null;
+				tree._callHook("treeStructureChanged", ctx, "clear");
 			},
 			/** Widget was created (called only once, even it re-initialized).
 			 * @param {EventData} ctx
@@ -6928,8 +7022,9 @@ var uniqueId = $.fn.extend( {
 			 */
 			treeDestroy: function(ctx) {
 				this.$div.find(">ul.fancytree-container").remove();
-				this.$source &&
+				if (this.$source) {
 					this.$source.removeClass("fancytree-helper-hidden");
+				}
 			},
 			/** Widget was (re-)initialized.
 			 * @param {EventData} ctx
@@ -6953,6 +7048,9 @@ var uniqueId = $.fn.extend( {
 					}
 				});
 
+				if (opts.checkboxAutoHide) {
+					tree.$container.addClass("fancytree-checkbox-auto-hide");
+				}
 				if (opts.rtl) {
 					tree.$container
 						.attr("DIR", "RTL")
@@ -6993,7 +7091,7 @@ var uniqueId = $.fn.extend( {
 					type = $container.data("type") || "html";
 					switch (type) {
 						case "html":
-							$ul = $container.find(">ul:first");
+							$ul = $container.find(">ul").first();
 							$ul.addClass(
 								"ui-fancytree-source fancytree-helper-hidden"
 							);
@@ -7042,9 +7140,17 @@ var uniqueId = $.fn.extend( {
 					$.error("Not implemented");
 				}
 
+				// TODO: might be useful? Let's wait for a use case...
+				// tree._triggerTreeEvent("beforeInitLoad", null);
+
 				// Trigger fancytreeinit after nodes have been loaded
 				dfd = this.nodeLoadChildren(rootCtx, source)
 					.done(function() {
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"loadChildren"
+						);
 						tree.render();
 						if (ctx.options.selectMode === 3) {
 							tree.rootNode.fixSelection3FromEndNodes();
@@ -7065,7 +7171,13 @@ var uniqueId = $.fn.extend( {
 			 * @param {boolean} add
 			 * @param {FancytreeNode} node
 			 */
-			treeRegisterNode: function(ctx, add, node) {},
+			treeRegisterNode: function(ctx, add, node) {
+				ctx.tree._callHook(
+					"treeStructureChanged",
+					ctx,
+					add ? "addNode" : "removeNode"
+				);
+			},
 			/** Widget got focus.
 			 * @param {EventData} ctx
 			 * @param {boolean} [flag=true]
@@ -7092,7 +7204,9 @@ var uniqueId = $.fn.extend( {
 						// #712: Use last mousedowned node ('click' event fires after focusin)
 						targetNode =
 							this._lastMousedownNode || this.getFirstChild();
-						targetNode && targetNode.setFocus();
+						if (targetNode) {
+							targetNode.setFocus();
+						}
 					}
 				}
 			},
@@ -7123,6 +7237,12 @@ var uniqueId = $.fn.extend( {
 						callCreate = true;
 						callRender = true;
 						break;
+					case "checkboxAutoHide":
+						tree.$container.toggleClass(
+							"fancytree-checkbox-auto-hide",
+							!!value
+						);
+						break;
 					case "escapeTitles":
 					case "tooltip":
 						callRender = true;
@@ -7174,6 +7294,10 @@ var uniqueId = $.fn.extend( {
 					tree.render(true, false); // force, not-deep
 				}
 			},
+			/** A Node was added, removed, moved, or it's visibility changed.
+			 * @param {EventData} ctx
+			 */
+			treeStructureChanged: function(ctx, type) {},
 		}
 	);
 
@@ -7214,7 +7338,7 @@ var uniqueId = $.fn.extend( {
 				autoScroll: false,
 				checkbox: false,
 				clickFolderMode: 4,
-				debugLevel: null, // 0..4 (null: use global setting $.ui.fancytree.debugInfo)
+				debugLevel: null, // 0..4 (null: use global setting $.ui.fancytree.debugLevel)
 				disabled: false, // TODO: required anymore?
 				enableAspx: true,
 				escapeTitles: false,
@@ -7246,6 +7370,7 @@ var uniqueId = $.fn.extend( {
 				tabindex: "0",
 				titlesTabbable: false,
 				tooltip: false,
+				treeId: null,
 				_classNames: {
 					node: "fancytree-node",
 					folder: "fancytree-folder",
@@ -7279,7 +7404,7 @@ var uniqueId = $.fn.extend( {
 				this.$source =
 					this.source || this.element.data("type") === "json"
 						? this.element
-						: this.element.find(">ul:first");
+						: this.element.find(">ul").first();
 				// Subclass Fancytree instance with all enabled extensions
 				var extension,
 					extName,
@@ -7330,15 +7455,15 @@ var uniqueId = $.fn.extend( {
 				//
 				if (opts.icons !== undefined) {
 					// 2015-11-16
-					if (opts.icon !== true) {
-						$.error(
-							"'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"
-						);
-					} else {
+					if (opts.icon === true) {
 						this.tree.warn(
 							"'icons' tree option is deprecated since v2.14.0: use 'icon' instead"
 						);
 						opts.icon = opts.icons;
+					} else {
+						$.error(
+							"'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"
+						);
 					}
 				}
 				if (opts.iconClass !== undefined) {
@@ -7409,7 +7534,7 @@ var uniqueId = $.fn.extend( {
 			},
 			/* Add mouse and kyboard handlers to the container */
 			_bind: function() {
-				var that = this,
+				var self = this,
 					opts = this.options,
 					tree = this.tree,
 					ns = tree._ns;
@@ -7520,7 +7645,7 @@ var uniqueId = $.fn.extend( {
 					})
 					.on("mousedown" + ns, function(event) {
 						var et = FT.getEventTarget(event);
-						// that.tree.debug("event(" + event.type + "): node: ", et.node);
+						// self.tree.debug("event(" + event.type + "): node: ", et.node);
 						// #712: Store the clicked node, so we can use it when we get a focusin event
 						//       ('click' event fires after focusin)
 						// tree.debug("event(" + event.type + "): node: ", et.node);
@@ -7539,15 +7664,15 @@ var uniqueId = $.fn.extend( {
 						var ctx,
 							et = FT.getEventTarget(event),
 							node = et.node,
-							tree = that.tree,
+							tree = self.tree,
 							prevPhase = tree.phase;
 
-						// that.tree.debug("event(" + event.type + "): node: ", node);
+						// self.tree.debug("event(" + event.type + "): node: ", node);
 						if (!node) {
 							return true; // Allow bubbling of other events
 						}
 						ctx = tree._makeHookContext(node, event);
-						// that.tree.debug("event(" + event.type + "): node: ", node);
+						// self.tree.debug("event(" + event.type + "): node: ", node);
 						try {
 							tree.phase = "userEvent";
 							switch (event.type) {
@@ -7630,7 +7755,7 @@ var uniqueId = $.fn.extend( {
 		/** @lends Fancytree_Static# */
 		{
 			/** @type {string} */
-			version: "2.30.2", // Set to semver by 'grunt release'
+			version: "2.31.0", // Set to semver by 'grunt release'
 			/** @type {string} */
 			buildType: "production", // Set to 'production' by 'grunt build'
 			/** @type {int} */
@@ -7691,9 +7816,11 @@ var uniqueId = $.fn.extend( {
 				return function() {
 					var args = arguments;
 					ctx = ctx || this;
+					// eslint-disable-next-line no-unused-expressions
 					invokeAsap && !timer && fn.apply(ctx, args);
 					clearTimeout(timer);
 					timer = setTimeout(function() {
+						// eslint-disable-next-line no-unused-expressions
 						invokeAsap || fn.apply(ctx, args);
 						timer = null;
 					}, timeout);
@@ -7703,16 +7830,17 @@ var uniqueId = $.fn.extend( {
 			 * @param {string} msg
 			 */
 			debug: function(msg) {
-				/*jshint expr:true */
-				$.ui.fancytree.debugLevel >= 4 &&
+				if ($.ui.fancytree.debugLevel >= 4) {
 					consoleApply("log", arguments);
+				}
 			},
 			/** Write error message to console if debugLevel >= 1.
 			 * @param {string} msg
 			 */
 			error: function(msg) {
-				$.ui.fancytree.debugLevel >= 1 &&
+				if ($.ui.fancytree.debugLevel >= 1) {
 					consoleApply("error", arguments);
+				}
 			},
 			/** Convert &lt;, &gt;, &amp;, &quot;, &#39;, &#x2F; to the equivalent entities.
 			 *
@@ -7850,14 +7978,17 @@ var uniqueId = $.fn.extend( {
 			 * @param {Element | jQueryObject | Event | integer | string} [el]
 			 * @returns {Fancytree} matching tree or null
 			 * @example
-			 * $.ui.fancytree.getTree();   // Get first Fancytree instance on page
+			 * $.ui.fancytree.getTree();  // Get first Fancytree instance on page
 			 * $.ui.fancytree.getTree(1);  // Get second Fancytree instance on page
-			 * $.ui.fancytree.getTree("#tree"); // Get tree for this matching element
+			 * $.ui.fancytree.getTree(event);  // Get tree for this mouse- or keyboard event
+			 * $.ui.fancytree.getTree("foo");  // Get tree for this `opts.treeId`
+			 * $.ui.fancytree.getTree("#tree");  // Get tree for this matching element
 			 *
 			 * @since 2.13
 			 */
 			getTree: function(el) {
-				var widget;
+				var widget,
+					orgEl = el;
 
 				if (el instanceof Fancytree) {
 					return el; // el already was a Fancytree
@@ -7868,7 +7999,11 @@ var uniqueId = $.fn.extend( {
 				if (typeof el === "number") {
 					el = $(".fancytree-container").eq(el); // el was an integer: return nth instance
 				} else if (typeof el === "string") {
-					el = $(el).eq(0); // el was a selector: use first match
+					// `el` may be a treeId or a selector:
+					el = $("#ft-id-" + orgEl).eq(0);
+					if (!el.length) {
+						el = $(orgEl).eq(0); // el was a selector: use first match
+					}
 				} else if (el instanceof $) {
 					el = el.eq(0); // el was a jQuery object: use the first DOM element
 				} else if (el.originalEvent !== undefined) {
@@ -7929,7 +8064,7 @@ var uniqueId = $.fn.extend( {
 						res = nodeOpt;
 					}
 				} else {
-					res = nodeOpt != null ? nodeOpt : treeOpt;
+					res = nodeOpt == null ? treeOpt : nodeOpt;
 				}
 				if (res == null) {
 					res = defaultValue; // no option set at all: return default
@@ -8010,13 +8145,13 @@ var uniqueId = $.fn.extend( {
 
 				if (et === "click" || et === "dblclick") {
 					s.push(MOUSE_BUTTONS[event.button] + et);
-				} else {
-					if (!IGNORE_KEYCODES[which]) {
-						s.push(
-							SPECIAL_KEYCODES[which] ||
-								String.fromCharCode(which).toLowerCase()
-						);
-					}
+				} else if (et === "wheel") {
+					s.push(et);
+				} else if (!IGNORE_KEYCODES[which]) {
+					s.push(
+						SPECIAL_KEYCODES[which] ||
+							String.fromCharCode(which).toLowerCase()
+					);
 				}
 				return s.join("+");
 			},
@@ -8024,9 +8159,9 @@ var uniqueId = $.fn.extend( {
 			 * @param {string} msg
 			 */
 			info: function(msg) {
-				/*jshint expr:true */
-				$.ui.fancytree.debugLevel >= 3 &&
+				if ($.ui.fancytree.debugLevel >= 3) {
 					consoleApply("info", arguments);
+				}
 			},
 			/* @deprecated: use eventToString(event) instead.
 			 */
@@ -8075,8 +8210,6 @@ var uniqueId = $.fn.extend( {
 			 * @returns {NodeData[]}
 			 */
 			parseHtml: function($ul) {
-				// TODO: understand this:
-				/*jshint validthis:true */
 				var classes,
 					className,
 					extraClasses,
@@ -8092,8 +8225,8 @@ var uniqueId = $.fn.extend( {
 					var allData,
 						lowerCaseAttr,
 						$li = $(this),
-						$liSpan = $li.find(">span:first", this),
-						$liA = $liSpan.length ? null : $li.find(">a:first"),
+						$liSpan = $li.find(">span", this).first(),
+						$liA = $liSpan.length ? null : $li.find(">a").first(),
 						d = { tooltip: null, data: {} };
 
 					if ($liSpan.length) {
@@ -8153,8 +8286,7 @@ var uniqueId = $.fn.extend( {
 							if (allData.hasOwnProperty(lowerCaseAttr)) {
 								allData[
 									NODE_ATTR_LOWERCASE_MAP[lowerCaseAttr]
-								] =
-									allData[lowerCaseAttr];
+								] = allData[lowerCaseAttr];
 								delete allData[lowerCaseAttr];
 							}
 						}
@@ -8171,7 +8303,7 @@ var uniqueId = $.fn.extend( {
 						$.extend(d.data, allData);
 					}
 					// Recursive reading of child nodes, if LI tag contains an UL tag
-					$ul = $li.find(">ul:first");
+					$ul = $li.find(">ul").first();
 					if ($ul.length) {
 						d.children = $.ui.fancytree.parseHtml($ul);
 					} else {
@@ -8213,8 +8345,9 @@ var uniqueId = $.fn.extend( {
 			 * @param {string} msg
 			 */
 			warn: function(msg) {
-				$.ui.fancytree.debugLevel >= 2 &&
+				if ($.ui.fancytree.debugLevel >= 2) {
 					consoleApply("warn", arguments);
+				}
 			},
 		}
 	);
@@ -8227,7 +8360,7 @@ var uniqueId = $.fn.extend( {
 /*! Extension 'jquery.fancytree.childcounter.js' */// Extending Fancytree
 // ===================
 //
-// See also the [live demo](http://wwwendt.de/tech/fancytree/demo/sample-ext-childcounter.html) of this code.
+// See also the [live demo](https://wwWendt.de/tech/fancytree/demo/sample-ext-childcounter.html) of this code.
 //
 // Every extension should have a comment header containing some information
 // about the author, copyright and licensing. Also a pointer to the latest
@@ -8240,13 +8373,13 @@ var uniqueId = $.fn.extend( {
  * Add a child counter bubble to tree nodes.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 // To keep the global namespace clean, we wrap everything in a closure.
@@ -8271,10 +8404,10 @@ var uniqueId = $.fn.extend( {
 	"use strict";
 
 	// The [coding guidelines](http://contribute.jquery.org/style-guide/js/)
-	// require jshint compliance.
+	// require jshint /eslint compliance.
 	// But for this sample, we want to allow unused variables for demonstration purpose.
 
-	/*jshint unused:false */
+	/*eslint-disable no-unused-vars */
 
 	// Adding methods
 	// --------------
@@ -8345,7 +8478,7 @@ var uniqueId = $.fn.extend( {
 	// Register a Fancytree extension
 	// ------------------------------
 	// A full blown extension, extension is available for all trees and can be
-	// enabled like so (see also the [live demo](http://wwwendt.de/tech/fancytree/demo/sample-ext-childcounter.html)):
+	// enabled like so (see also the [live demo](https://wwWendt.de/tech/fancytree/demo/sample-ext-childcounter.html)):
 	//
 	//    <script src="../src/jquery.fancytree.js"></script>
 	//    <script src="../src/jquery.fancytree.childcounter.js"></script>
@@ -8365,7 +8498,7 @@ var uniqueId = $.fn.extend( {
 		// Every extension must be registered by a unique name.
 		name: "childcounter",
 		// Version information should be compliant with [semver](http://semver.org)
-		version: "2.30.2",
+		version: "2.31.0",
 
 		// Extension specific options and their defaults.
 		// This options will be available as `tree.options.childcounter.hideExpanded`
@@ -8392,13 +8525,13 @@ var uniqueId = $.fn.extend( {
 		// **Override virtual methods for this extension.**
 		//
 		// Fancytree implements a number of 'hook methods', prefixed by 'node...' or 'tree...'.
-		// with a `ctx` argument (see [EventData](http://www.wwwendt.de/tech/fancytree/doc/jsdoc/global.html#EventData)
+		// with a `ctx` argument (see [EventData](https://wwWendt.de/tech/fancytree/doc/jsdoc/global.html#EventData)
 		// for details) and an extended calling context:<br>
 		// `this`       : the Fancytree instance<br>
 		// `this._local`: the namespace that contains extension attributes and private methods (same as this.ext.EXTNAME)<br>
 		// `this._super`: the virtual function that was overridden (member of previous extension or Fancytree)
 		//
-		// See also the [complete list of available hook functions](http://www.wwwendt.de/tech/fancytree/doc/jsdoc/Fancytree_Hooks.html).
+		// See also the [complete list of available hook functions](https://wwWendt.de/tech/fancytree/doc/jsdoc/Fancytree_Hooks.html).
 
 		/* Init */
 		// `treeInit` is triggered when a tree is initalized. We can set up classes or
@@ -8471,13 +8604,13 @@ var uniqueId = $.fn.extend( {
  * Support faster lookup of nodes by key and shared ref-ids.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -8533,7 +8666,7 @@ var uniqueId = $.fn.extend( {
 	 * @return {number} 32-bit positive integer hash
 	 */
 	function hashMurmur3(key, asString, seed) {
-		/*jshint bitwise:false */
+		/*eslint-disable no-bitwise */
 		var h1b,
 			k1,
 			remainder = key.length & 3,
@@ -8573,11 +8706,12 @@ var uniqueId = $.fn.extend( {
 		k1 = 0;
 
 		switch (remainder) {
-			/*jshint -W086:true */
 			case 3:
 				k1 ^= (key.charCodeAt(i + 2) & 0xff) << 16;
+			// fall through
 			case 2:
 				k1 ^= (key.charCodeAt(i + 1) & 0xff) << 8;
+			// fall through
 			case 1:
 				k1 ^= key.charCodeAt(i) & 0xff;
 
@@ -8612,19 +8746,26 @@ var uniqueId = $.fn.extend( {
 			return ("0000000" + (h1 >>> 0).toString(16)).substr(-8);
 		}
 		return h1 >>> 0;
+		/*eslint-enable no-bitwise */
 	}
 
 	/*
- * Return a unique key for node by calculating the hash of the parents refKey-list.
- */
+	 * Return a unique key for node by calculating the hash of the parents refKey-list.
+	 */
 	function calcUniqueKey(node) {
 		var key,
+			h1,
 			path = $.map(node.getParentList(false, true), function(e) {
 				return e.refKey || e.key;
 			});
+
 		path = path.join("/");
-		key = "id_" + hashMurmur3(path, true);
-		// node.debug(path + " -> " + key);
+		// 32-bit has a high probability of collisions, so we pump up to 64-bit
+		// https://security.stackexchange.com/q/209882/207588
+
+		h1 = hashMurmur3(path, true);
+		key = "id_" + h1 + hashMurmur3(h1 + path, true);
+
 		return key;
 	}
 
@@ -8827,7 +8968,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "clones",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			highlightActiveClones: true, // set 'fancytree-active-clone' on active clones and all peers
@@ -8871,12 +9012,21 @@ var uniqueId = $.fn.extend( {
 
 			if (add) {
 				if (keyMap[node.key] != null) {
-					$.error(
-						"clones.treeRegisterNode: node.key already exists: " +
-							node
-					);
+					var other = keyMap[node.key],
+						msg =
+							"clones.treeRegisterNode: duplicate key '" +
+							node.key +
+							"': /" +
+							node.getPath(true) +
+							" => " +
+							other.getPath(true);
+					// Sometimes this exception is not visible in the console,
+					// so we also write it:
+					tree.error(msg);
+					$.error(msg);
 				}
 				keyMap[key] = node;
+
 				if (refKey) {
 					refList = refMap[refKey];
 					if (refList) {
@@ -8975,13 +9125,13 @@ var uniqueId = $.fn.extend( {
  * Drag-and-drop support (native HTML5).
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 /*
@@ -9027,27 +9177,45 @@ var uniqueId = $.fn.extend( {
 		classDropTarget = "fancytree-drop-target",
 		nodeMimeType = "application/x-fancytree-node",
 		$dropMarker = null,
+		$dragImage,
+		$extraHelper,
 		SOURCE_NODE = null,
 		SOURCE_NODE_LIST = null,
 		$sourceList = null,
 		DRAG_ENTER_RESPONSE = null,
+		// SESSION_DATA = null, // plain object passed to events as `data`
+		SUGGESTED_DROP_EFFECT = null,
+		REQUESTED_DROP_EFFECT = null,
+		REQUESTED_EFFECT_ALLOWED = null,
 		LAST_HIT_MODE = null,
 		DRAG_OVER_STAMP = null; // Time when a node entered the 'over' hitmode
 
 	/* */
 	function _clearGlobals() {
+		DRAG_ENTER_RESPONSE = null;
+		DRAG_OVER_STAMP = null;
+		REQUESTED_DROP_EFFECT = null;
+		REQUESTED_EFFECT_ALLOWED = null;
+		SUGGESTED_DROP_EFFECT = null;
 		SOURCE_NODE = null;
 		SOURCE_NODE_LIST = null;
 		if ($sourceList) {
 			$sourceList.removeClass(classDragSource + " " + classDragRemove);
 		}
 		$sourceList = null;
-		DRAG_ENTER_RESPONSE = null;
-		DRAG_OVER_STAMP = null;
+		if ($dropMarker) {
+			$dropMarker.hide();
+		}
+		// Take this badge off of me - I can't use it anymore:
+		if ($extraHelper) {
+			$extraHelper.remove();
+			$extraHelper = null;
+		}
 	}
 
 	/* Convert number to string and prepend +/-; return empty string for 0.*/
 	function offsetString(n) {
+		// eslint-disable-next-line no-nested-ternary
 		return n === 0 ? "" : n > 0 ? "+" + n : "" + n;
 	}
 
@@ -9090,6 +9258,25 @@ var uniqueId = $.fn.extend( {
 		return res;
 	}
 
+	/* Convert a dataTransfer.effectAllowed to a canonical form.
+	 * Return false or plain object
+	 * @param {string|boolean} r
+	 * @return {object|false}
+	 */
+	// function normalizeEffectAllowed(r) {
+	// 	if (!r || r === "none") {
+	// 		return false;
+	// 	}
+	// 	var all = r === "all",
+	// 		res = {
+	// 			copy: all || /copy/i.test(r),
+	// 			link: all || /link/i.test(r),
+	// 			move: all || /move/i.test(r),
+	// 		};
+
+	// 	return res;
+	// }
+
 	/* Implement auto scrolling when drag cursor is in top/bottom area of scroll parent. */
 	function autoScroll(tree, event) {
 		var spOfs,
@@ -9141,7 +9328,193 @@ var uniqueId = $.fn.extend( {
 		return scrolled;
 	}
 
-	/* Handle dragover event (fired every x ms) and return hitMode. */
+	/* Guess dropEffect from modifier keys.
+	 * Using rules suggested here:
+	 *     https://ux.stackexchange.com/a/83769
+	 * @returns
+	 *     'copy', 'link', 'move', or 'none'
+	 */
+	function evalEffectModifiers(tree, event, effectDefault) {
+		var res = effectDefault;
+
+		if (isMac) {
+			if (event.metaKey && event.altKey) {
+				// Mac: [Control] + [Option]
+				res = "link";
+			} else if (event.ctrlKey) {
+				// Chrome on Mac: [Control]
+				res = "link";
+			} else if (event.metaKey) {
+				// Mac: [Command]
+				res = "move";
+			} else if (event.altKey) {
+				// Mac: [Option]
+				res = "copy";
+			}
+		} else {
+			if (event.ctrlKey) {
+				// Windows: [Ctrl]
+				res = "copy";
+			} else if (event.shiftKey) {
+				// Windows: [Shift]
+				res = "move";
+			} else if (event.altKey) {
+				// Windows: [Alt]
+				res = "link";
+			}
+		}
+		if (res !== SUGGESTED_DROP_EFFECT) {
+			tree.info(
+				"evalEffectModifiers: " +
+					event.type +
+					" - evalEffectModifiers(): " +
+					SUGGESTED_DROP_EFFECT +
+					" -> " +
+					res
+			);
+		}
+		SUGGESTED_DROP_EFFECT = res;
+		// tree.debug("evalEffectModifiers: " + res);
+		return res;
+	}
+	/*
+	 * Check if the previous callback (dragEnter, dragOver, ...) has changed
+	 * the `data` object and apply those settings.
+	 *
+	 * Safari:
+	 *     It seems that `dataTransfer.dropEffect` can only be set on dragStart, and will remain
+	 *     even if the cursor changes when [Alt] or [Ctrl] are pressed (?)
+	 * Using rules suggested here:
+	 *     https://ux.stackexchange.com/a/83769
+	 * @returns
+	 *     'copy', 'link', 'move', or 'none'
+	 */
+	function prepareDropEffectCallback(event, data) {
+		var tree = data.tree,
+			dataTransfer = data.dataTransfer;
+
+		if (event.type === "dragstart") {
+			data.effectAllowed = tree.options.dnd5.effectAllowed;
+			data.dropEffect = tree.options.dnd5.dropEffectDefault;
+		} else {
+			data.effectAllowed = REQUESTED_EFFECT_ALLOWED;
+			data.dropEffect = REQUESTED_DROP_EFFECT;
+		}
+		data.dropEffectSuggested = evalEffectModifiers(
+			tree,
+			event,
+			tree.options.dnd5.dropEffectDefault
+		);
+		data.isMove = data.dropEffect === "move";
+		data.files = dataTransfer.files || [];
+
+		// if (REQUESTED_EFFECT_ALLOWED !== dataTransfer.effectAllowed) {
+		// 	tree.warn(
+		// 		"prepareDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.effectAllowed changed from " +
+		// 			REQUESTED_EFFECT_ALLOWED +
+		// 			" -> " +
+		// 			dataTransfer.effectAllowed
+		// 	);
+		// }
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	tree.warn(
+		// 		"prepareDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.dropEffect changed from requested " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" to " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+	}
+
+	function applyDropEffectCallback(event, data, allowDrop) {
+		var tree = data.tree,
+			dataTransfer = data.dataTransfer;
+
+		if (
+			event.type !== "dragstart" &&
+			REQUESTED_EFFECT_ALLOWED !== data.effectAllowed
+		) {
+			tree.warn(
+				"effectAllowed should only be changed in dragstart event: " +
+					event.type +
+					": data.effectAllowed changed from " +
+					REQUESTED_EFFECT_ALLOWED +
+					" -> " +
+					data.effectAllowed
+			);
+		}
+
+		if (allowDrop === false) {
+			tree.info("applyDropEffectCallback: allowDrop === false");
+			data.effectAllowed = "none";
+			data.dropEffect = "none";
+		}
+		// if (REQUESTED_DROP_EFFECT !== data.dropEffect) {
+		// 	tree.debug(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): data.dropEffect changed from previous " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" to " +
+		// 			data.dropEffect
+		// 	);
+		// }
+
+		data.isMove = data.dropEffect === "move";
+		// data.isMove = data.dropEffectSuggested === "move";
+
+		REQUESTED_EFFECT_ALLOWED = data.effectAllowed;
+		REQUESTED_DROP_EFFECT = data.dropEffect;
+
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	data.tree.info(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.dropEffect changed from " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" -> " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+		dataTransfer.effectAllowed = REQUESTED_EFFECT_ALLOWED;
+		dataTransfer.dropEffect = REQUESTED_DROP_EFFECT;
+
+		// tree.debug(
+		// 	"applyDropEffectCallback(" +
+		// 		event.type +
+		// 		"): set " +
+		// 		dataTransfer.dropEffect +
+		// 		"/" +
+		// 		dataTransfer.effectAllowed
+		// );
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	data.tree.warn(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): could not set dataTransfer.dropEffect to " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			": got " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+		return REQUESTED_DROP_EFFECT;
+	}
+
+	/* Handle dragover event (fired every x ms) on valid drop targets.
+	 *
+	 * - Auto-scroll when cursor is in border regions
+	 * - Apply restrictioan like 'preventVoidMoves'
+	 * - Calculate hit mode
+	 * - Calculate drop effect
+	 * - Trigger dragOver() callback to let user modify hit mode and drop effect
+	 * - Adjust the drop marker accordingly
+	 *
+	 * @returns hitMode
+	 */
 	function handleDragOver(event, data) {
 		// Implement auto-scrolling
 		if (data.options.dnd5.scroll) {
@@ -9172,74 +9545,69 @@ var uniqueId = $.fn.extend( {
 			return false;
 		} else if (typeof DRAG_ENTER_RESPONSE === "string") {
 			$.error("assert failed: dragenter returned string");
-			// Use hitMode from onEnter if provided.
-			// hitMode = DRAG_ENTER_RESPONSE;
-		} else {
-			// Calculate hitMode from relative cursor position.
-			nodeOfs = $target.offset();
-			relPosY = (event.pageY - nodeOfs.top) / $target.height();
-
-			if (DRAG_ENTER_RESPONSE.after && relPosY > 0.75) {
-				hitMode = "after";
+		}
+		// Calculate hitMode from relative cursor position.
+		nodeOfs = $target.offset();
+		relPosY = (event.pageY - nodeOfs.top) / $target.height();
+
+		if (DRAG_ENTER_RESPONSE.after && relPosY > 0.75) {
+			hitMode = "after";
+		} else if (
+			!DRAG_ENTER_RESPONSE.over &&
+			DRAG_ENTER_RESPONSE.after &&
+			relPosY > 0.5
+		) {
+			hitMode = "after";
+		} else if (DRAG_ENTER_RESPONSE.before && relPosY <= 0.25) {
+			hitMode = "before";
+		} else if (
+			!DRAG_ENTER_RESPONSE.over &&
+			DRAG_ENTER_RESPONSE.before &&
+			relPosY <= 0.5
+		) {
+			hitMode = "before";
+		} else if (DRAG_ENTER_RESPONSE.over) {
+			hitMode = "over";
+		}
+		// Prevent no-ops like 'before source node'
+		// TODO: these are no-ops when moving nodes, but not in copy mode
+		if (dndOpts.preventVoidMoves && data.dropEffect === "move") {
+			if (targetNode === sourceNode) {
+				targetNode.debug("Drop over source node prevented.");
+				hitMode = null;
 			} else if (
-				!DRAG_ENTER_RESPONSE.over &&
-				DRAG_ENTER_RESPONSE.after &&
-				relPosY > 0.5
+				hitMode === "before" &&
+				sourceNode &&
+				targetNode === sourceNode.getNextSibling()
 			) {
-				hitMode = "after";
-			} else if (DRAG_ENTER_RESPONSE.before && relPosY <= 0.25) {
-				hitMode = "before";
+				targetNode.debug("Drop after source node prevented.");
+				hitMode = null;
 			} else if (
-				!DRAG_ENTER_RESPONSE.over &&
-				DRAG_ENTER_RESPONSE.before &&
-				relPosY <= 0.5
+				hitMode === "after" &&
+				sourceNode &&
+				targetNode === sourceNode.getPrevSibling()
 			) {
-				hitMode = "before";
-			} else if (DRAG_ENTER_RESPONSE.over) {
-				hitMode = "over";
-			}
-			// Prevent no-ops like 'before source node'
-			// TODO: these are no-ops when moving nodes, but not in copy mode
-			if (dndOpts.preventVoidMoves) {
-				if (targetNode === sourceNode) {
-					targetNode.debug("Drop over source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "before" &&
-					sourceNode &&
-					targetNode === sourceNode.getNextSibling()
-				) {
-					targetNode.debug("Drop after source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "after" &&
-					sourceNode &&
-					targetNode === sourceNode.getPrevSibling()
-				) {
-					targetNode.debug("Drop before source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "over" &&
-					sourceNode &&
-					sourceNode.parent === targetNode &&
-					sourceNode.isLastSibling()
-				) {
-					targetNode.debug(
-						"Drop last child over own parent prevented."
-					);
-					hitMode = null;
-				}
+				targetNode.debug("Drop before source node prevented.");
+				hitMode = null;
+			} else if (
+				hitMode === "over" &&
+				sourceNode &&
+				sourceNode.parent === targetNode &&
+				sourceNode.isLastSibling()
+			) {
+				targetNode.debug("Drop last child over own parent prevented.");
+				hitMode = null;
 			}
 		}
 		// Let callback modify the calculated hitMode
 		data.hitMode = hitMode;
 		if (hitMode && dndOpts.dragOver) {
-			// TODO: http://code.google.com/p/dynatree/source/detail?r=625
+			prepareDropEffectCallback(event, data);
 			dndOpts.dragOver(targetNode, data);
+			var allowDrop = !!hitMode;
+			applyDropEffectCallback(event, data, allowDrop);
 			hitMode = data.hitMode;
 		}
-		// LAST_DROP_EFFECT = data.dataTransfer.dropEffect;
-		// LAST_EFFECT_ALLOWED = data.dataTransfer.effectAllowed;
 		LAST_HIT_MODE = hitMode;
 		//
 		if (hitMode === "after" || hitMode === "before" || hitMode === "over") {
@@ -9291,71 +9659,492 @@ var uniqueId = $.fn.extend( {
 		return hitMode;
 	}
 
-	/* Guess dropEffect from modifier keys.
-	 * Safari:
-	 *     It seems that `dataTransfer.dropEffect` can only be set on dragStart, and will remain
-	 *     even if the cursor changes when [Alt] or [Ctrl] are pressed (?)
-	 * Using rules suggested here:
-	 *     https://ux.stackexchange.com/a/83769
-	 * @returns
-	 *     'copy', 'link', 'move', or 'none'
+	/*
+	 * Handle dragstart drag dragend events on the container
 	 */
-	function getDropEffect(event, data) {
-		var dndOpts = data.options.dnd5,
-			res = dndOpts.dropEffectDefault;
-		// dataTransfer = event.dataTransfer || event.originalEvent.dataTransfer,
-
-		// Use callback if any:
-		if (dndOpts.dropEffect) {
-			return dndOpts.dropEffect(event, data);
+	function onDragEvent(event) {
+		var json,
+			tree = this,
+			dndOpts = tree.options.dnd5,
+			node = FT.getNode(event),
+			dataTransfer =
+				event.dataTransfer || event.originalEvent.dataTransfer,
+			data = {
+				tree: tree,
+				node: node,
+				options: tree.options,
+				originalEvent: event.originalEvent,
+				widget: tree.widget,
+				dataTransfer: dataTransfer,
+				useDefaultImage: true,
+				dropEffect: undefined,
+				dropEffectSuggested: undefined,
+				effectAllowed: undefined, // set by dragstart
+				files: undefined, // only for drop events
+				isCancelled: undefined, // set by dragend
+				isMove: undefined,
+			};
+
+		switch (event.type) {
+			case "dragstart":
+				if (!node) {
+					tree.info("Ignored dragstart on a non-node.");
+					return false;
+				}
+				// Store current source node in different formats
+				SOURCE_NODE = node;
+
+				// Also optionally store selected nodes
+				if (dndOpts.multiSource === false) {
+					SOURCE_NODE_LIST = [node];
+				} else if (dndOpts.multiSource === true) {
+					SOURCE_NODE_LIST = tree.getSelectedNodes();
+					if (!node.isSelected()) {
+						SOURCE_NODE_LIST.unshift(node);
+					}
+				} else {
+					SOURCE_NODE_LIST = dndOpts.multiSource(node, data);
+				}
+				// Cache as array of jQuery objects for faster access:
+				$sourceList = $(
+					$.map(SOURCE_NODE_LIST, function(n) {
+						return n.span;
+					})
+				);
+				// Set visual feedback
+				$sourceList.addClass(classDragSource);
+
+				// Set payload
+				// Note:
+				// Transfer data is only accessible on dragstart and drop!
+				// For all other events the formats and kinds in the drag
+				// data store list of items representing dragged data can be
+				// enumerated, but the data itself is unavailable and no new
+				// data can be added.
+				var nodeData = node.toDict();
+				nodeData.treeId = node.tree._id;
+				json = JSON.stringify(nodeData);
+				try {
+					dataTransfer.setData(nodeMimeType, json);
+					dataTransfer.setData("text/html", $(node.span).html());
+					dataTransfer.setData("text/plain", node.title);
+				} catch (ex) {
+					// IE only accepts 'text' type
+					tree.warn(
+						"Could not set data (IE only accepts 'text') - " + ex
+					);
+				}
+				// We always need to set the 'text' type if we want to drag
+				// Because IE 11 only accepts this single type.
+				// If we pass JSON here, IE can can access all node properties,
+				// even when the source lives in another window. (D'n'd inside
+				// the same window will always work.)
+				// The drawback is, that in this case ALL browsers will see
+				// the JSON representation as 'text', so dragging
+				// to a text field will insert the JSON string instead of
+				// the node title.
+				if (dndOpts.setTextTypeJson) {
+					dataTransfer.setData("text", json);
+				} else {
+					dataTransfer.setData("text", node.title);
+				}
+
+				// Set the allowed drag modes (combinations of move, copy, and link)
+				// (effectAllowed can only be set in the dragstart event.)
+				// This can be overridden in the dragStart() callback
+				prepareDropEffectCallback(event, data);
+
+				// Let user cancel or modify above settings
+				// Realize potential changes by previous callback
+				if (dndOpts.dragStart(node, data) === false) {
+					// Cancel dragging
+					// dataTransfer.dropEffect = "none";
+					_clearGlobals();
+					return false;
+				}
+				applyDropEffectCallback(event, data);
+
+				// Unless user set `data.useDefaultImage` to false in dragStart,
+				// generata a default drag image now:
+				$extraHelper = null;
+
+				if (data.useDefaultImage) {
+					// Set the title as drag image (otherwise it would contain the expander)
+					$dragImage = $(node.span).find(".fancytree-title");
+
+					if (SOURCE_NODE_LIST && SOURCE_NODE_LIST.length > 1) {
+						// Add a counter badge to node title if dragging more than one node.
+						// We want this, because the element that is used as drag image
+						// must be *visible* in the DOM, so we cannot create some hidden
+						// custom markup.
+						// See https://kryogenix.org/code/browser/custom-drag-image.html
+						// Also, since IE 11 and Edge don't support setDragImage() alltogether,
+						// it gives som feedback to the user.
+						// The badge will be removed later on drag end.
+						$extraHelper = $(
+							"<span class='fancytree-childcounter'/>"
+						)
+							.text("+" + (SOURCE_NODE_LIST.length - 1))
+							.appendTo($dragImage);
+					}
+					if (dataTransfer.setDragImage) {
+						// IE 11 and Edge do not support this
+						dataTransfer.setDragImage($dragImage[0], -10, -10);
+					}
+				}
+				return true;
+
+			case "drag":
+				// Called every few milliseconds (no matter if the
+				// cursor is over a valid drop target)
+				// data.tree.info("drag", SOURCE_NODE)
+				prepareDropEffectCallback(event, data);
+				dndOpts.dragDrag(node, data);
+				applyDropEffectCallback(event, data);
+
+				$sourceList.toggleClass(classDragRemove, data.isMove);
+				break;
+
+			case "dragend":
+				// Called at the end of a d'n'd process (after drop)
+				// Note caveat: If drop removed the dragged source element,
+				// we may not get this event, since the target does not exist
+				// anymore
+				prepareDropEffectCallback(event, data);
+
+				_clearGlobals();
+
+				data.isCancelled = !LAST_HIT_MODE;
+				dndOpts.dragEnd(node, data, !LAST_HIT_MODE);
+				// applyDropEffectCallback(event, data);
+				break;
 		}
+	}
+	/*
+	 * Handle dragenter dragover dragleave drop events on the container
+	 */
+	function onDropEvent(event) {
+		var json,
+			nodeData,
+			isSourceFtNode,
+			r,
+			res,
+			tree = this,
+			dndOpts = tree.options.dnd5,
+			allowDrop = null,
+			node = FT.getNode(event),
+			dataTransfer =
+				event.dataTransfer || event.originalEvent.dataTransfer,
+			data = {
+				tree: tree,
+				node: node,
+				options: tree.options,
+				originalEvent: event.originalEvent,
+				widget: tree.widget,
+				hitMode: DRAG_ENTER_RESPONSE,
+				dataTransfer: dataTransfer,
+				otherNode: SOURCE_NODE || null,
+				otherNodeList: SOURCE_NODE_LIST || null,
+				otherNodeData: null, // set by drop event
+				useDefaultImage: true,
+				dropEffect: undefined,
+				dropEffectSuggested: undefined,
+				effectAllowed: undefined, // set by dragstart
+				files: null, // list of File objects (may be [])
+				isCancelled: undefined, // set by drop event
+				isMove: undefined,
+			};
 
-		if (isMac) {
-			if (event.metaKey && event.altKey) {
-				// Mac: [Control] + [Option]
-				return "link";
-			} else if (event.metaKey) {
-				// Mac: [Command]
-				return "move";
-			} else if (event.altKey) {
-				// Mac: [Option]
-				return "copy";
-			}
-		} else {
-			if (event.ctrlKey) {
-				// Windows: [Ctrl]
-				return "copy";
-			} else if (event.shiftKey) {
-				// Windows: [Shift]
-				return "move";
-			} else if (event.altKey) {
-				// Windows: [Alt]
-				return "link";
-			}
+		// data.isMove = dropEffect === "move";
+
+		switch (event.type) {
+			case "dragenter":
+				// The dragenter event is fired when a dragged element or
+				// text selection enters a valid drop target.
+
+				DRAG_OVER_STAMP = null;
+				if (!node) {
+					// Sometimes we get dragenter for the container element
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				}
+
+				$(node.span)
+					.addClass(classDropOver)
+					.removeClass(classDropAccept + " " + classDropReject);
+
+				// Data is only readable in the dragstart and drop event,
+				// but we can check for the type:
+				isSourceFtNode =
+					$.inArray(nodeMimeType, dataTransfer.types) >= 0;
+
+				if (dndOpts.preventNonNodes && !isSourceFtNode) {
+					node.debug("Reject dropping a non-node.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventForeignNodes &&
+					(!SOURCE_NODE || SOURCE_NODE.tree !== node.tree)
+				) {
+					node.debug("Reject dropping a foreign node.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventSameParent &&
+					data.otherNode &&
+					data.otherNode.tree === node.tree &&
+					node.parent === data.otherNode.parent
+				) {
+					node.debug("Reject dropping as sibling (same parent).");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventRecursion &&
+					data.otherNode &&
+					data.otherNode.tree === node.tree &&
+					node.isDescendantOf(data.otherNode)
+				) {
+					node.debug("Reject dropping below own ancestor.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				}
+				$dropMarker.show();
+
+				// Call dragEnter() to figure out if (and where) dropping is allowed
+				prepareDropEffectCallback(event, data);
+				r = dndOpts.dragEnter(node, data);
+
+				res = normalizeDragEnterResponse(r);
+				DRAG_ENTER_RESPONSE = res;
+
+				allowDrop = res && (res.over || res.before || res.after);
+
+				applyDropEffectCallback(event, data, allowDrop);
+				break;
+
+			case "dragover":
+				if (!node) {
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					break;
+				}
+				// The dragover event is fired when an element or text
+				// selection is being dragged over a valid drop target
+				// (every few hundred milliseconds).
+				// tree.debug(
+				// 	event.type +
+				// 		": dropEffect: " +
+				// 		dataTransfer.dropEffect
+				// );
+				LAST_HIT_MODE = handleDragOver(event, data);
+
+				// The flag controls the preventDefault() below:
+				allowDrop = !!LAST_HIT_MODE;
+
+				if (
+					LAST_HIT_MODE === "over" &&
+					!node.expanded &&
+					node.hasChildren() !== false
+				) {
+					if (!DRAG_OVER_STAMP) {
+						DRAG_OVER_STAMP = Date.now();
+					} else if (
+						dndOpts.autoExpandMS &&
+						Date.now() - DRAG_OVER_STAMP > dndOpts.autoExpandMS &&
+						(!dndOpts.dragExpand ||
+							dndOpts.dragExpand(node, data) !== false)
+					) {
+						node.setExpanded();
+					}
+				} else {
+					DRAG_OVER_STAMP = null;
+				}
+				break;
+
+			case "dragleave":
+				// NOTE: dragleave is fired AFTER the dragenter event of the
+				// FOLLOWING element.
+				if (!node) {
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					break;
+				}
+				if (!$(node.span).hasClass(classDropOver)) {
+					node.debug("Ignore dragleave (multi).");
+					break;
+				}
+				$(node.span).removeClass(
+					classDropOver +
+						" " +
+						classDropAccept +
+						" " +
+						classDropReject
+				);
+				node.scheduleAction("cancel");
+				dndOpts.dragLeave(node, data);
+				$dropMarker.hide();
+				break;
+
+			case "drop":
+				// Data is only readable in the (dragstart and) drop event:
+
+				if ($.inArray(nodeMimeType, dataTransfer.types) >= 0) {
+					nodeData = dataTransfer.getData(nodeMimeType);
+					tree.info(
+						event.type +
+							": getData('application/x-fancytree-node'): '" +
+							nodeData +
+							"'"
+					);
+				}
+				if (!nodeData) {
+					// 1. Source is not a Fancytree node, or
+					// 2. If the FT mime type was set, but returns '', this
+					//    is probably IE 11 (which only supports 'text')
+					nodeData = dataTransfer.getData("text");
+					tree.info(
+						event.type + ": getData('text'): '" + nodeData + "'"
+					);
+				}
+				if (nodeData) {
+					try {
+						// 'text' type may contain JSON if IE is involved
+						// and setTextTypeJson option was set
+						json = JSON.parse(nodeData);
+						if (json.title !== undefined) {
+							data.otherNodeData = json;
+						}
+					} catch (ex) {
+						// assume 'text' type contains plain text, so `otherNodeData`
+						// should not be set
+					}
+				}
+				tree.debug(
+					event.type +
+						": nodeData: '" +
+						nodeData +
+						"', otherNodeData: ",
+					data.otherNodeData
+				);
+
+				$(node.span).removeClass(
+					classDropOver +
+						" " +
+						classDropAccept +
+						" " +
+						classDropReject
+				);
+
+				// Let user implement the actual drop operation
+				data.hitMode = LAST_HIT_MODE;
+				prepareDropEffectCallback(event, data, !LAST_HIT_MODE);
+				data.isCancelled = !LAST_HIT_MODE;
+
+				var orgSourceElem = SOURCE_NODE && SOURCE_NODE.span,
+					orgSourceTree = SOURCE_NODE && SOURCE_NODE.tree;
+
+				dndOpts.dragDrop(node, data);
+				// applyDropEffectCallback(event, data);
+
+				// Prevent browser's default drop handling, i.e. open as link, ...
+				event.preventDefault();
+
+				if (orgSourceElem && !document.body.contains(orgSourceElem)) {
+					// The drop handler removed the original drag source from
+					// the DOM, so the dragend event will probaly not fire.
+					if (orgSourceTree === tree) {
+						tree.debug(
+							"Drop handler removed source element: generating dragEnd."
+						);
+						dndOpts.dragEnd(SOURCE_NODE, data);
+					} else {
+						tree.warn(
+							"Drop handler removed source element: dragend event may be lost."
+						);
+					}
+				}
+
+				_clearGlobals();
+
+				break;
+		}
+		// Dnd API madness: we must PREVENT default handling to enable dropping
+		if (allowDrop) {
+			event.preventDefault();
+			return false;
 		}
-		// data.tree.debug("getDropEffect: " + res);
-		return res;
 	}
 
+	/** [ext-dnd5] Return a Fancytree instance, from element, index, event, or jQueryObject.
+	 *
+	 * @returns {FancytreeNode[]} List of nodes (empty if no drag operation)
+	 * @example
+	 * $.ui.fancytree.getDragNodeList();
+	 *
+	 * @alias Fancytree_Static#getDragNodeList
+	 * @requires jquery.fancytree.dnd5.js
+	 * @since 2.31
+	 */
+	$.ui.fancytree.getDragNodeList = function() {
+		return SOURCE_NODE_LIST || [];
+	};
+
+	/** [ext-dnd5] Return the FancytreeNode that is currently being dragged.
+	 *
+	 * If multiple nodes are dragged, only the first is returned.
+	 *
+	 * @returns {FancytreeNode | null} dragged nodes or null if no drag operation
+	 * @example
+	 * $.ui.fancytree.getDragNode();
+	 *
+	 * @alias Fancytree_Static#getDragNode
+	 * @requires jquery.fancytree.dnd5.js
+	 * @since 2.31
+	 */
+	$.ui.fancytree.getDragNode = function() {
+		return SOURCE_NODE;
+	};
+
 	/******************************************************************************
 	 *
 	 */
 
 	$.ui.fancytree.registerExtension({
 		name: "dnd5",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autoExpandMS: 1500, // Expand nodes after n milliseconds of hovering
 			dropMarkerInsertOffsetX: -16, // Additional offset for drop-marker with hitMode = "before"/"after"
 			dropMarkerOffsetX: -24, // Absolute position offset for .fancytree-drop-marker relatively to ..fancytree-title (icon/img near a node accepting drop)
-			multiSource: false, // true: Drag multiple (i.e. selected) nodes.
-			dragImage: null, // Callback(node, data) that can be used to call dataTransfer.setDragImage().
-			dropEffect: null, // Callback(node, data) that returns 'copy', 'link', 'move', or 'none'.
-			dropEffectDefault: "move", // Default dropEffect ('copy', 'link', or 'move').
+			multiSource: false, // true: Drag multiple (i.e. selected) nodes. Also a callback() is allowed
+			effectAllowed: "all", // Restrict the possible cursor shapes and modifier operations (can also be set in the dragStart event)
+			// dropEffect: "auto", // 'copy'|'link'|'move'|'auto'(calculate from `effectAllowed`+modifier keys) or callback(node, data) that returns such string.
+			dropEffectDefault: "move", // Default dropEffect ('copy', 'link', or 'move') when no modifier is pressed (overide in dragDrag, dragOver).
 			preventForeignNodes: false, // Prevent dropping nodes from different Fancytrees
 			preventNonNodes: false, // Prevent dropping items other than Fancytree nodes
-			preventRecursiveMoves: true, // Prevent dropping nodes on own descendants
+			preventRecursion: true, // Prevent dropping nodes on own descendants
+			preventSameParent: false, // Prevent dropping nodes under same direct parent
 			preventVoidMoves: true, // Prevent dropping nodes 'before self', etc.
 			scroll: true, // Enable auto-scrolling while dragging
 			scrollSensitivity: 20, // Active top/bottom margin in pixel
@@ -9374,14 +10163,11 @@ var uniqueId = $.fn.extend( {
 		},
 
 		treeInit: function(ctx) {
-			var $dragImage,
-				$extraHelper,
-				$temp,
+			var $temp,
 				tree = ctx.tree,
 				opts = ctx.options,
 				glyph = opts.glyph || null,
-				dndOpts = opts.dnd5,
-				getNode = FT.getNode;
+				dndOpts = opts.dnd5;
 
 			if ($.inArray("dnd", opts.extensions) >= 0) {
 				$.error("Extensions 'dnd' and 'dnd5' are mutually exclusive.");
@@ -9391,6 +10177,11 @@ var uniqueId = $.fn.extend( {
 					"dragStop is not used by ext-dnd5. Use dragEnd instead."
 				);
 			}
+			if (dndOpts.preventRecursiveMoves != null) {
+				$.error(
+					"preventRecursiveMoves was renamed to preventRecursion."
+				);
+			}
 
 			// Implement `opts.createNode` event to add the 'draggable' attribute
 			// #680: this must happen before calling super.treeInit()
@@ -9401,7 +10192,11 @@ var uniqueId = $.fn.extend( {
 				) {
 					// Default processing if any
 					this._super.apply(this, arguments);
-					data.node.span.draggable = true;
+					if (data.node.span) {
+						data.node.span.draggable = true;
+					} else {
+						data.node.warn("Cannot add `draggable`: no span tag");
+					}
 				});
 			}
 			this._superApply(arguments);
@@ -9431,449 +10226,24 @@ var uniqueId = $.fn.extend( {
 						glyph.map._addClass,
 						glyph.map.dropMarker
 					);
-					// $dropMarker.addClass(glyph.map._addClass + " " + glyph.map.dropMarker);
 				}
 			}
 			$dropMarker.toggleClass("fancytree-rtl", !!opts.rtl);
+
 			// Enable drag support if dragStart() is specified:
 			if (dndOpts.dragStart) {
 				// Bind drag event handlers
-				tree.$container.on("dragstart drag dragend", function(event) {
-					var json,
-						node = getNode(event),
-						dataTransfer =
-							event.dataTransfer ||
-							event.originalEvent.dataTransfer,
-						data = {
-							node: node,
-							tree: tree,
-							options: tree.options,
-							originalEvent: event,
-							dataTransfer: dataTransfer,
-							// dropEffect: undefined,  // set by dragend
-							isCancelled: undefined, // set by dragend
-						},
-						dropEffect = getDropEffect(event, data),
-						isMove = dropEffect === "move";
-
-					// console.log(event.type, "dropEffect: " + dropEffect);
-					switch (event.type) {
-						case "dragstart":
-							if (!node) {
-								tree.info("Ignored dragstart on a non-node.");
-								return false;
-							}
-							// Store current source node in different formats
-							SOURCE_NODE = node;
-
-							// Also optionally store selected nodes
-							if (dndOpts.multiSource === false) {
-								SOURCE_NODE_LIST = [node];
-							} else if (dndOpts.multiSource === true) {
-								SOURCE_NODE_LIST = tree.getSelectedNodes();
-								if (!node.isSelected()) {
-									SOURCE_NODE_LIST.unshift(node);
-								}
-							} else {
-								SOURCE_NODE_LIST = dndOpts.multiSource(
-									node,
-									data
-								);
-							}
-							// Cache as array of jQuery objects for faster access:
-							$sourceList = $(
-								$.map(SOURCE_NODE_LIST, function(n) {
-									return n.span;
-								})
-							);
-							// Set visual feedback
-							$sourceList.addClass(classDragSource);
-
-							// Set payload
-							// Note:
-							// Transfer data is only accessible on dragstart and drop!
-							// For all other events the formats and kinds in the drag
-							// data store list of items representing dragged data can be
-							// enumerated, but the data itself is unavailable and no new
-							// data can be added.
-							json = JSON.stringify(node.toDict());
-							try {
-								dataTransfer.setData(nodeMimeType, json);
-								dataTransfer.setData(
-									"text/html",
-									$(node.span).html()
-								);
-								dataTransfer.setData("text/plain", node.title);
-							} catch (ex) {
-								// IE only accepts 'text' type
-								tree.warn(
-									"Could not set data (IE only accepts 'text') - " +
-										ex
-								);
-							}
-							// We always need to set the 'text' type if we want to drag
-							// Because IE 11 only accepts this single type.
-							// If we pass JSON here, IE can can access all node properties,
-							// even when the source lives in another window. (D'n'd inside
-							// the same window will always work.)
-							// The drawback is, that in this case ALL browsers will see
-							// the JSON representation as 'text', so dragging
-							// to a text field will insert the JSON string instead of
-							// the node title.
-							if (dndOpts.setTextTypeJson) {
-								dataTransfer.setData("text", json);
-							} else {
-								dataTransfer.setData("text", node.title);
-							}
-
-							// Set the allowed and current drag mode (move, copy, or link)
-							dataTransfer.effectAllowed = "all"; // "copyMove"
-							// dropEffect = "move";
-
-							$extraHelper = null;
-
-							if (dndOpts.dragImage) {
-								// Let caller set a custom drag image using dataTransfer.setDragImage()
-								// and/or modify visual feedback otherwise.
-								dndOpts.dragImage(node, data);
-							} else {
-								// Set the title as drag image (otherwise it would contain the expander)
-								$dragImage = $(node.span).find(
-									".fancytree-title"
-								);
-
-								if (
-									SOURCE_NODE_LIST &&
-									SOURCE_NODE_LIST.length > 1
-								) {
-									// Add a counter badge to node title if dragging more than one node.
-									// We want this, because the element that is used as drag image
-									// must be *visible* in the DOM, so we cannot create some hidden
-									// custom markup.
-									// See https://kryogenix.org/code/browser/custom-drag-image.html
-									// Also, since IE 11 and Edge don't support setDragImage() alltogether,
-									// it gives som feedback to the user.
-									// The badge will be removed later on drag end.
-									$extraHelper = $(
-										"<span class='fancytree-childcounter'/>"
-									)
-										.text(
-											"+" + (SOURCE_NODE_LIST.length - 1)
-										)
-										.appendTo($dragImage);
-								}
-								if (dataTransfer.setDragImage) {
-									// IE 11 and Edge do not support this
-									dataTransfer.setDragImage(
-										$dragImage[0],
-										-10,
-										-10
-									);
-								}
-							}
-							// Let user modify above settings
-							if (dndOpts.dragStart(node, data) !== false) {
-								return true;
-							}
-							// Clear dragged node to be safe
-							_clearGlobals();
-							return false;
-
-						case "drag":
-							// Called every few miliseconds
-							// data.tree.info("drag", SOURCE_NODE)
-							$sourceList.toggleClass(classDragRemove, isMove);
-							dndOpts.dragDrag(node, data);
-							break;
-
-						case "dragend":
-							_clearGlobals();
-							// data.dropEffect = dropEffect;
-							data.isCancelled = dropEffect === "none";
-							$dropMarker.hide();
-							// Take this badge off of me - I can't use it anymore:
-							if ($extraHelper) {
-								$extraHelper.remove();
-								$extraHelper = null;
-							}
-							dndOpts.dragEnd(node, data);
-							break;
-					}
-				});
+				tree.$container.on(
+					"dragstart drag dragend",
+					onDragEvent.bind(tree)
+				);
 			}
 			// Enable drop support if dragEnter() is specified:
 			if (dndOpts.dragEnter) {
 				// Bind drop event handlers
 				tree.$container.on(
 					"dragenter dragover dragleave drop",
-					function(event) {
-						var json,
-							nodeData,
-							isSourceFtNode,
-							r,
-							res,
-							allowDrop = null,
-							node = getNode(event),
-							dataTransfer =
-								event.dataTransfer ||
-								event.originalEvent.dataTransfer,
-							// dropEffect = getDropEffect(dataTransfer, opts),
-							data = {
-								node: node,
-								tree: tree,
-								options: tree.options,
-								hitMode: DRAG_ENTER_RESPONSE,
-								originalEvent: event,
-								dataTransfer: dataTransfer,
-								otherNode: SOURCE_NODE || null,
-								otherNodeList: SOURCE_NODE_LIST || null,
-								otherNodeData: null, // set by drop event
-								dropEffect: undefined, // set by drop event
-								isCancelled: undefined, // set by drop event
-							};
-
-						switch (event.type) {
-							case "dragenter":
-								// The dragenter event is fired when a dragged element or
-								// text selection enters a valid drop target.
-
-								DRAG_OVER_STAMP = null;
-								if (!node) {
-									// Sometimes we get dragenter for the container element
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								}
-
-								$(node.span)
-									.addClass(classDropOver)
-									.removeClass(
-										classDropAccept + " " + classDropReject
-									);
-
-								// Data is only readable in the dragstart and drop event,
-								// but we can check for the type:
-								isSourceFtNode =
-									$.inArray(
-										nodeMimeType,
-										dataTransfer.types
-									) >= 0;
-
-								if (
-									dndOpts.preventNonNodes &&
-									!isSourceFtNode
-								) {
-									node.debug("Reject dropping a non-node.");
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								} else if (
-									dndOpts.preventForeignNodes &&
-									(!SOURCE_NODE ||
-										SOURCE_NODE.tree !== node.tree)
-								) {
-									node.debug(
-										"Reject dropping a foreign node."
-									);
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								}
-
-								$dropMarker.show();
-
-								// Call dragEnter() to figure out if (and where) dropping is allowed
-								if (
-									dndOpts.preventRecursiveMoves &&
-									node.isDescendantOf(data.otherNode)
-								) {
-									node.debug(
-										"Reject dropping below own ancestor."
-									);
-									res = false;
-								} else {
-									r = dndOpts.dragEnter(node, data);
-									res = normalizeDragEnterResponse(r);
-								}
-								DRAG_ENTER_RESPONSE = res;
-
-								allowDrop =
-									res &&
-									(res.over || res.before || res.after);
-								break;
-
-							case "dragover":
-								if (!node) {
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									break;
-								}
-								// The dragover event is fired when an element or text
-								// selection is being dragged over a valid drop target
-								// (every few hundred milliseconds).
-								// console.log(event.type, "dropEffect: " + dataTransfer.dropEffect)
-								LAST_HIT_MODE = handleDragOver(event, data);
-								allowDrop = !!LAST_HIT_MODE;
-
-								// console.log(event.type, LAST_HIT_MODE, DRAG_OVER_STAMP)
-
-								if (
-									LAST_HIT_MODE === "over" &&
-									!node.expanded &&
-									node.hasChildren() !== false
-								) {
-									if (!DRAG_OVER_STAMP) {
-										DRAG_OVER_STAMP = Date.now();
-									} else if (
-										dndOpts.autoExpandMS &&
-										Date.now() - DRAG_OVER_STAMP >
-											dndOpts.autoExpandMS &&
-										(!dndOpts.dragExpand ||
-											dndOpts.dragExpand(node, data) !==
-												false)
-									) {
-										node.setExpanded();
-									}
-								} else {
-									DRAG_OVER_STAMP = null;
-								}
-								// // NOTE: dragenter is fired BEFORE the dragleave event
-								// // of the previous element!
-								// // https://www.w3.org/Bugs/Public/show_bug.cgi?id=19041
-								// setTimeout(function(){
-								// 	node.info("DELAYED " + event.type, event.target, DRAG_ENTER_RESPONSE);
-								// 	// Auto-expand node (only when 'over' the node, not 'before', or 'after')
-								// 	if( dndOpts.autoExpandMS &&
-								// 		node.hasChildren() !== false && !node.expanded &&
-								// 		(!dndOpts.dragExpand || dndOpts.dragExpand(node, data) !== false)
-								// 		// res.over
-								// 		) {
-								// 		node.scheduleAction("expand", dndOpts.autoExpandMS);
-								// 	}
-								// }, 0);
-
-								break;
-
-							case "dragleave":
-								// NOTE: dragleave is fired AFTER the dragenter event of the
-								// FOLLOWING element.
-								if (!node) {
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									break;
-								}
-								if (!$(node.span).hasClass(classDropOver)) {
-									node.debug("Ignore dragleave (multi).");
-									break;
-								}
-								$(node.span).removeClass(
-									classDropOver +
-										" " +
-										classDropAccept +
-										" " +
-										classDropReject
-								);
-								node.scheduleAction("cancel");
-								dndOpts.dragLeave(node, data);
-								$dropMarker.hide();
-								break;
-
-							case "drop":
-								// Data is only readable in the (dragstart and) drop event:
-
-								if (
-									$.inArray(
-										nodeMimeType,
-										dataTransfer.types
-									) >= 0
-								) {
-									nodeData = dataTransfer.getData(
-										nodeMimeType
-									);
-									tree.info(
-										event.type +
-											": getData('application/x-fancytree-node'): '" +
-											nodeData +
-											"'"
-									);
-								}
-								if (!nodeData) {
-									// 1. Source is not a Fancytree node, or
-									// 2. If the FT mime type was set, but returns '', this
-									//    is probably IE 11 (which only supports 'text')
-									nodeData = dataTransfer.getData("text");
-									tree.info(
-										event.type +
-											": getData('text'): '" +
-											nodeData +
-											"'"
-									);
-								}
-								if (nodeData) {
-									try {
-										// 'text' type may contain JSON if IE is involved
-										// and setTextTypeJson option was set
-										json = JSON.parse(nodeData);
-										if (json.title !== undefined) {
-											data.otherNodeData = json;
-										}
-									} catch (ex) {
-										// assume 'text' type contains plain text, so `otherNodeData`
-										// should not be set
-									}
-								}
-								tree.debug(
-									event.type +
-										": nodeData: '" +
-										nodeData +
-										"', otherNodeData: ",
-									data.otherNodeData
-								);
-
-								$(node.span).removeClass(
-									classDropOver +
-										" " +
-										classDropAccept +
-										" " +
-										classDropReject
-								);
-								$dropMarker.hide();
-
-								data.hitMode = LAST_HIT_MODE;
-								data.dropEffect = dataTransfer.dropEffect;
-								data.isCancelled = data.dropEffect === "none";
-
-								// Let user implement the actual drop operation
-								dndOpts.dragDrop(node, data);
-
-								// Prevent browser's default drop handling
-								event.preventDefault();
-								_clearGlobals();
-								break;
-						}
-						// Dnd API madness: we must PREVENT default handling to enable dropping
-						if (allowDrop) {
-							event.preventDefault();
-							return false;
-						}
-					}
+					onDropEvent.bind(tree)
 				);
 			}
 		},
@@ -9889,13 +10259,13 @@ var uniqueId = $.fn.extend( {
  * Make node titles editable.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -9999,7 +10369,7 @@ var uniqueId = $.fn.extend( {
 			.change(function(event) {
 				$input.addClass("fancytree-edit-dirty");
 			})
-			.keydown(function(event) {
+			.on("keydown", function(event) {
 				switch (event.which) {
 					case $.ui.keyCode.ESCAPE:
 						node.editEnd(false, event);
@@ -10187,7 +10557,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "edit",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			adjustWidthOfs: 4, // null: don't adjust input size to content
@@ -10208,8 +10578,21 @@ var uniqueId = $.fn.extend( {
 		currentNode: null,
 
 		treeInit: function(ctx) {
+			var tree = ctx.tree;
+
 			this._superApply(arguments);
-			this.$container.addClass("fancytree-ext-edit");
+
+			this.$container
+				.addClass("fancytree-ext-edit")
+				.on("fancytreebeforeupdateviewport", function(event, data) {
+					var editNode = tree.isEditing();
+					// When scrolling, the TR may be re-used by another node, so the
+					// active cell marker an
+					if (editNode) {
+						editNode.info("Cancel edit due to scroll event.");
+						editNode.editEnd(false, event);
+					}
+				});
 		},
 		nodeClick: function(ctx) {
 			var eventStr = $.ui.fancytree.eventToString(ctx.originalEvent),
@@ -10280,13 +10663,13 @@ var uniqueId = $.fn.extend( {
  * Remove or highlight tree nodes, based on a filter.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -10312,8 +10695,7 @@ var uniqueId = $.fn.extend( {
 		escapeHtml = $.ui.fancytree.escapeHtml;
 
 	function _escapeRegex(str) {
-		/*jshint regexdash:true */
-		return (str + "").replace(/([.?*+\^\$\[\]\\(){}|-])/g, "\\$1");
+		return (str + "").replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
 	}
 
 	function extractHtmlText(s) {
@@ -10335,6 +10717,7 @@ var uniqueId = $.fn.extend( {
 			re,
 			reHighlight,
 			temp,
+			prevEnableUpdate,
 			count = 0,
 			treeOpts = this.options,
 			escapeTitles = treeOpts.escapeTitles,
@@ -10402,6 +10785,8 @@ var uniqueId = $.fn.extend( {
 		this.enableFilter = true;
 		this.lastFilterArgs = arguments;
 
+		prevEnableUpdate = this.enableUpdate(false);
+
 		this.$div.addClass("fancytree-ext-filter");
 		if (hideMode) {
 			this.$div.addClass("fancytree-ext-filter-hide");
@@ -10484,7 +10869,9 @@ var uniqueId = $.fn.extend( {
 			this.getRootNode().addNode(statusNode).match = true;
 		}
 		// Redraw whole tree
-		this.render();
+		this._callHook("treeStructureChanged", this, "applyFilter");
+		// this.render();
+		this.enableUpdate(prevEnableUpdate);
 		return count;
 	};
 
@@ -10510,16 +10897,6 @@ var uniqueId = $.fn.extend( {
 		return this._applyFilterImpl(filter, false, opts);
 	};
 
-	/**
-	 * @deprecated
-	 */
-	$.ui.fancytree._FancytreeClass.prototype.applyFilter = function(filter) {
-		this.warn(
-			"Fancytree.applyFilter() is deprecated since 2.1.0 / 2014-05-29. Use .filterNodes() instead."
-		);
-		return this.filterNodes.apply(this, arguments);
-	};
-
 	/**
 	 * [ext-filter] Dimm or hide whole branches.
 	 *
@@ -10546,7 +10923,8 @@ var uniqueId = $.fn.extend( {
 		var $title,
 			statusNode = this.getRootNode()._findDirectChild(KeyNoData),
 			escapeTitles = this.options.escapeTitles,
-			enhanceTitle = this.options.enhanceTitle;
+			enhanceTitle = this.options.enhanceTitle,
+			prevEnableUpdate = this.enableUpdate(false);
 
 		if (statusNode) {
 			statusNode.remove();
@@ -10588,7 +10966,9 @@ var uniqueId = $.fn.extend( {
 		this.$div.removeClass(
 			"fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"
 		);
-		this.render();
+		this._callHook("treeStructureChanged", this, "clearFilter");
+		// this.render();
+		this.enableUpdate(prevEnableUpdate);
 	};
 
 	/**
@@ -10620,7 +11000,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "filter",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autoApply: true, // Re-apply last filter if lazy data is loaded
@@ -10635,28 +11015,29 @@ var uniqueId = $.fn.extend( {
 			mode: "dimm", // Grayout unmatched nodes (pass "hide" to remove unmatched node instead)
 		},
 		nodeLoadChildren: function(ctx, source) {
+			var tree = ctx.tree;
+
 			return this._superApply(arguments).done(function() {
 				if (
-					ctx.tree.enableFilter &&
-					ctx.tree.lastFilterArgs &&
+					tree.enableFilter &&
+					tree.lastFilterArgs &&
 					ctx.options.filter.autoApply
 				) {
-					ctx.tree._applyFilterImpl.apply(
-						ctx.tree,
-						ctx.tree.lastFilterArgs
-					);
+					tree._applyFilterImpl.apply(tree, tree.lastFilterArgs);
 				}
 			});
 		},
 		nodeSetExpanded: function(ctx, flag, callOpts) {
-			delete ctx.node._filterAutoExpanded;
+			var node = ctx.node;
+
+			delete node._filterAutoExpanded;
 			// Make sure counter badge is displayed again, when node is beeing collapsed
 			if (
 				!flag &&
 				ctx.options.filter.hideExpandedCounter &&
-				ctx.node.$subMatchBadge
+				node.$subMatchBadge
 			) {
-				ctx.node.$subMatchBadge.show();
+				node.$subMatchBadge.show();
 			}
 			return this._superApply(arguments);
 		},
@@ -10703,7 +11084,7 @@ var uniqueId = $.fn.extend( {
 				node.$subMatchBadge.hide();
 			}
 			// node.debug("nodeRenderStatus", node.titleWithHighlight, node.title)
-			// #601: also chek for $title.length, because we don't need to render
+			// #601: also check for $title.length, because we don't need to render
 			// if node.span is null (i.e. not rendered)
 			if (node.span && (!node.isEditing || !node.isEditing.call(node))) {
 				if (node.titleWithHighlight) {
@@ -10734,13 +11115,13 @@ var uniqueId = $.fn.extend( {
  * Use glyph-fonts, ligature-fonts, or SVG icons instead of icon sprites.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -10900,12 +11281,13 @@ var uniqueId = $.fn.extend( {
 		var map = opts.map,
 			icon = map[type],
 			$span = $(span),
+			$counter = $span.find(".fancytree-childcounter"),
 			setClass = baseClass + " " + (map._addClass || "");
 
 		if (typeof icon === "string") {
 			// #883: remove inner html that may be added by prev. mode
 			span.innerHTML = "";
-			$span.attr("class", setClass + " " + icon);
+			$span.attr("class", setClass + " " + icon).append($counter);
 		} else if (icon) {
 			if (icon.text) {
 				span.textContent = "" + icon.text;
@@ -10914,13 +11296,15 @@ var uniqueId = $.fn.extend( {
 			} else {
 				span.innerHTML = "";
 			}
-			$span.attr("class", setClass + " " + (icon.addClass || ""));
+			$span
+				.attr("class", setClass + " " + (icon.addClass || ""))
+				.append($counter);
 		}
 	}
 
 	$.ui.fancytree.registerExtension({
 		name: "glyph",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			preset: null, // 'awesome3', 'awesome4', 'bootstrap3', 'material'
@@ -10995,11 +11379,12 @@ var uniqueId = $.fn.extend( {
 						icon
 					);
 				} else {
+					// eslint-disable-next-line no-nested-ternary
 					icon = node.selected
 						? "checkboxSelected"
 						: node.partsel
-							? "checkboxUnknown"
-							: "checkbox";
+						? "checkboxUnknown"
+						: "checkbox";
 					// span.className = "fancytree-checkbox " + map[icon];
 					setIcon(span, "fancytree-checkbox", opts, icon);
 				}
@@ -11068,13 +11453,13 @@ var uniqueId = $.fn.extend( {
  * Support keyboard navigation for trees with embedded input controls.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -11191,7 +11576,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "gridnav",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autofocusInput: false, // Focus first embedded input if node gets activated
@@ -11243,7 +11628,10 @@ var uniqueId = $.fn.extend( {
 					// Set focus to input sub input (if node was clicked, but not
 					// when TAB was pressed )
 					$outer = $(node.tr || node.span);
-					$outer.find(":input:enabled:first").focus();
+					$outer
+						.find(":input:enabled")
+						.first()
+						.focus();
 				}
 			}
 		},
@@ -11290,13 +11678,13 @@ var uniqueId = $.fn.extend( {
  * Allow multiple selection of nodes  by mouse or keyboard.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -11325,7 +11713,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "multi",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			allowNoSelect: false, //
@@ -11422,13 +11810,13 @@ var uniqueId = $.fn.extend( {
  *
  * @depends: js-cookie or jquery-cookie
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -11504,8 +11892,8 @@ var uniqueId = $.fn.extend( {
 	}
 
 	/* Recursively load lazy nodes
- * @param {string} mode 'load', 'expand', false
- */
+	 * @param {string} mode 'load', 'expand', false
+	 */
 	function _loadLazyNodes(tree, local, keyList, mode, dfd) {
 		var i,
 			key,
@@ -11628,7 +12016,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "persist",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			cookieDelimiter: "~",
@@ -11916,13 +12304,13 @@ var uniqueId = $.fn.extend( {
  * Render tree as table (aka 'tree grid', 'table tree').
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -12003,24 +12391,14 @@ var uniqueId = $.fn.extend( {
 		return prev;
 	}
 
-	/* Render callback for 'wide' mode. */
-	// function _renderStatusNodeWide(event, data) {
-	// 	var node = data.node,
-	// 		nodeColumnIdx = data.options.table.nodeColumnIdx,
-	// 		$tdList = $(node.tr).find(">td");
-
-	// 	$tdList.eq(nodeColumnIdx).attr("colspan", data.tree.columnCount);
-	// 	$tdList.not(":eq(" + nodeColumnIdx + ")").remove();
-	// }
-
 	$.ui.fancytree.registerExtension({
 		name: "table",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			checkboxColumnIdx: null, // render the checkboxes into the this column index (default: nodeColumnIdx)
-			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
 			indentation: 16, // indent every node level by 16px
+			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
 			nodeColumnIdx: 0, // render node expander, icon, and title to this column (default: #0)
 		},
 		// Overide virtual methods for this extension.
@@ -12037,15 +12415,15 @@ var uniqueId = $.fn.extend( {
 				$table = tree.widget.element;
 
 			if (tableOpts.customStatus != null) {
-				if (opts.renderStatusColumns != null) {
-					$.error(
-						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
-					);
-				} else {
+				if (opts.renderStatusColumns == null) {
 					tree.warn(
 						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."
 					);
 					opts.renderStatusColumns = tableOpts.customStatus;
+				} else {
+					$.error(
+						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
+					);
 				}
 			}
 			if (opts.renderStatusColumns) {
@@ -12072,9 +12450,11 @@ var uniqueId = $.fn.extend( {
 
 			// Prepare row templates:
 			// Determine column count from table header if any
-			tree.columnCount = $("thead >tr:last >th", $table).length;
+			tree.columnCount = $("thead >tr", $table)
+				.last()
+				.find(">th", $table).length;
 			// Read TR templates from tbody if any
-			$row = $tbody.children("tr:first");
+			$row = $tbody.children("tr").first();
 			if ($row.length) {
 				n = $row.children("td").length;
 				if (tree.columnCount && n !== tree.columnCount) {
@@ -12110,7 +12490,7 @@ var uniqueId = $.fn.extend( {
 			tree.rowFragment.appendChild($row.get(0));
 
 			// // If tbody contains a second row, use this as status node template
-			// $row = $tbody.children("tr:eq(1)");
+			// $row = $tbody.children("tr").eq(1);
 			// if( $row.length === 0 ) {
 			// 	tree.statusRowFragment = tree.rowFragment;
 			// } else {
@@ -12191,7 +12571,15 @@ var uniqueId = $.fn.extend( {
 				if (node.tr && force) {
 					this.nodeRemoveMarkup(ctx);
 				}
-				if (!node.tr) {
+				if (node.tr) {
+					if (force) {
+						// Set icon, link, and title (normally this is only required on initial render)
+						this.nodeRenderTitle(ctx); // triggers renderColumns()
+					} else {
+						// Update element classes according to node state
+						this.nodeRenderStatus(ctx);
+					}
+				} else {
 					if (ctx.hasCollapsedParents && !deep) {
 						// #166: we assume that the parent will be (recursively) rendered
 						// later anyway.
@@ -12215,15 +12603,15 @@ var uniqueId = $.fn.extend( {
 						newRow.style.display = "none";
 						//					newRow.style.color = "red";
 					}
-					if (!prevNode.tr) {
+					if (prevNode.tr) {
+						insertSiblingAfter(prevNode.tr, newRow);
+					} else {
 						_assert(
 							!prevNode.parent,
 							"prev. row must have a tr, or be system root"
 						);
 						// tree.tbody.appendChild(newRow);
 						insertFirstChild(tree.tbody, newRow); // #675
-					} else {
-						insertSiblingAfter(prevNode.tr, newRow);
 					}
 					node.tr = newRow;
 					if (node.key && opts.generateIds) {
@@ -12241,14 +12629,6 @@ var uniqueId = $.fn.extend( {
 					if (opts.createNode) {
 						opts.createNode.call(tree, { type: "createNode" }, ctx);
 					}
-				} else {
-					if (force) {
-						// Set icon, link, and title (normally this is only required on initial render)
-						this.nodeRenderTitle(ctx); // triggers renderColumns()
-					} else {
-						// Update element classes according to node state
-						this.nodeRenderStatus(ctx);
-					}
 				}
 			}
 			// Allow tweaking after node state was rendered
@@ -12329,13 +12709,13 @@ var uniqueId = $.fn.extend( {
 				if (opts.renderStatusColumns) {
 					// Let user code write column content
 					opts.renderStatusColumns.call(
-						ctx.tree,
+						tree,
 						{ type: "renderStatusColumns" },
 						ctx
 					);
 				} else if (opts.table.mergeStatusColumns && node.isTopLevel()) {
-					var $tdList = $(node.tr).find(">td");
-					$tdList
+					$(node.tr)
+						.find(">td")
 						.eq(0)
 						.prop("colspan", tree.columnCount)
 						.text(node.title)
@@ -12344,11 +12724,7 @@ var uniqueId = $.fn.extend( {
 						.remove();
 				} // else: default rendering for status node: leave other cells empty
 			} else if (opts.renderColumns) {
-				opts.renderColumns.call(
-					ctx.tree,
-					{ type: "renderColumns" },
-					ctx
-				);
+				opts.renderColumns.call(tree, { type: "renderColumns" }, ctx);
 			}
 			return res;
 		},
@@ -12453,7 +12829,9 @@ var uniqueId = $.fn.extend( {
 		},
 		treeDestroy: function(ctx) {
 			this.$container.find("tbody").empty();
-			this.$source && this.$source.removeClass("fancytree-helper-hidden");
+			if (this.$source) {
+				this.$source.removeClass("fancytree-helper-hidden");
+			}
 			return this._superApply(arguments);
 		},
 		/*,
@@ -12476,13 +12854,13 @@ var uniqueId = $.fn.extend( {
  *
  * @see http://jqueryui.com/themeroller/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -12505,7 +12883,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "themeroller",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			activeClass: "ui-state-active", // Class added to active node
@@ -12531,9 +12909,7 @@ var uniqueId = $.fn.extend( {
 				$el.addClass("ui-widget ui-widget-content ui-corner-all");
 			}
 
-			$el.delegate(".fancytree-node", "mouseenter mouseleave", function(
-				event
-			) {
+			$el.on("mouseenter mouseleave", ".fancytree-node", function(event) {
 				var node = $.ui.fancytree.getNode(event.target),
 					flag = event.type === "mouseenter";
 
@@ -12598,13 +12974,13 @@ var uniqueId = $.fn.extend( {
  * Support for 100% wide selection bars.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -12734,7 +13110,7 @@ var uniqueId = $.fn.extend( {
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "wide",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			iconWidth: null, // Adjust this if @fancy-icon-width != "16px"
diff --git a/dist/jquery.fancytree-all-deps.min.js b/dist/jquery.fancytree-all-deps.min.js
index 6a0e0acd..dc39a285 100644
--- a/dist/jquery.fancytree-all-deps.min.js
+++ b/dist/jquery.fancytree-all-deps.min.js
@@ -1,2 +1,2 @@
-!function(e){e.ui=e.ui||{};e.ui.version="1.12.1";var t=0,n=Array.prototype.slice;e.cleanData=function(t){return function(n){var i,r,o;for(o=0;null!=(r=n[o]);o++)try{(i=e._data(r,"events"))&&i.remove&&e(r).triggerHandler("remove")}catch(e){}t(n)}}(e.cleanData),e.widget=function(t,n,i){var r,o,s,a={},l=t.split(".")[0],d=l+"-"+(t=t.split(".")[1]);return i||(i=n,n=e.Widget),e.isArray(i)&&(i=e.extend.apply(null,[{}].concat(i))),e.expr[":"][d.toLowerCase()]=function(t){return!!e.data(t,d)},e[l]=e[l]||{},r=e[l][t],o=e[l][t]=function(e,t){if(!this._createWidget)return new o(e,t);arguments.length&&this._createWidget(e,t)},e.extend(o,r,{version:i.version,_proto:e.extend({},i),_childConstructors:[]}),s=new n,s.options=e.widget.extend({},s.options),e.each(i,function(t,i){e.isFunction(i)?a[t]=function(){function e(){return n.prototype[t].apply(this,arguments)}function r(e){return n.prototype[t].apply(this,e)}return function(){var t,n=this._super,o=this._superApply;return this._super=e,this._superApply=r,t=i.apply(this,arguments),this._super=n,this._superApply=o,t}}():a[t]=i}),o.prototype=e.widget.extend(s,{widgetEventPrefix:r?s.widgetEventPrefix||t:t},a,{constructor:o,namespace:l,widgetName:t,widgetFullName:d}),r?(e.each(r._childConstructors,function(t,n){var i=n.prototype;e.widget(i.namespace+"."+i.widgetName,o,n._proto)}),delete r._childConstructors):n._childConstructors.push(o),e.widget.bridge(t,o),o},e.widget.extend=function(t){for(var i,r,o=n.call(arguments,1),s=0,a=o.length;s<a;s++)for(i in o[s])r=o[s][i],o[s].hasOwnProperty(i)&&void 0!==r&&(e.isPlainObject(r)?t[i]=e.isPlainObject(t[i])?e.widget.extend({},t[i],r):e.widget.extend({},r):t[i]=r);return t},e.widget.bridge=function(t,i){var r=i.prototype.widgetFullName||t;e.fn[t]=function(o){var s="string"==typeof o,a=n.call(arguments,1),l=this;return s?this.length||"instance"!==o?this.each(function(){var n,i=e.data(this,r);return"instance"===o?(l=i,!1):i?e.isFunction(i[o])&&"_"!==o.charAt(0)?(n=i[o].apply(i,a))!==i&&void 0!==n?(l=n&&n.jquery?l.pushStack(n.get()):n,!1):void 0:e.error("no such method '"+o+"' for "+t+" widget instance"):e.error("cannot call methods on "+t+" prior to initialization; attempted to call method '"+o+"'")}):l=void 0:(a.length&&(o=e.widget.extend.apply(null,[o].concat(a))),this.each(function(){var t=e.data(this,r);t?(t.option(o||{}),t._init&&t._init()):e.data(this,r,new i(o,this))})),l}},e.Widget=function(){},e.Widget._childConstructors=[],e.Widget.prototype={widgetName:"widget",widgetEventPrefix:"",defaultElement:"<div>",options:{classes:{},disabled:!1,create:null},_createWidget:function(n,i){i=e(i||this.defaultElement||this)[0],this.element=e(i),this.uuid=t++,this.eventNamespace="."+this.widgetName+this.uuid,this.bindings=e(),this.hoverable=e(),this.focusable=e(),this.classesElementLookup={},i!==this&&(e.data(i,this.widgetFullName,this),this._on(!0,this.element,{remove:function(e){e.target===i&&this.destroy()}}),this.document=e(i.style?i.ownerDocument:i.document||i),this.window=e(this.document[0].defaultView||this.document[0].parentWindow)),this.options=e.widget.extend({},this.options,this._getCreateOptions(),n),this._create(),this.options.disabled&&this._setOptionDisabled(this.options.disabled),this._trigger("create",null,this._getCreateEventData()),this._init()},_getCreateOptions:function(){return{}},_getCreateEventData:e.noop,_create:e.noop,_init:e.noop,destroy:function(){var t=this;this._destroy(),e.each(this.classesElementLookup,function(e,n){t._removeClass(n,e)}),this.element.off(this.eventNamespace).removeData(this.widgetFullName),this.widget().off(this.eventNamespace).removeAttr("aria-disabled"),this.bindings.off(this.eventNamespace)},_destroy:e.noop,widget:function(){return this.element},option:function(t,n){var i,r,o,s=t;if(0===arguments.length)return e.widget.extend({},this.options);if("string"==typeof t)if(s={},i=t.split("."),t=i.shift(),i.length){for(r=s[t]=e.widget.extend({},this.options[t]),o=0;o<i.length-1;o++)r[i[o]]=r[i[o]]||{},r=r[i[o]];if(t=i.pop(),1===arguments.length)return void 0===r[t]?null:r[t];r[t]=n}else{if(1===arguments.length)return void 0===this.options[t]?null:this.options[t];s[t]=n}return this._setOptions(s),this},_setOptions:function(e){var t;for(t in e)this._setOption(t,e[t]);return this},_setOption:function(e,t){return"classes"===e&&this._setOptionClasses(t),this.options[e]=t,"disabled"===e&&this._setOptionDisabled(t),this},_setOptionClasses:function(t){var n,i,r;for(n in t)r=this.classesElementLookup[n],t[n]!==this.options.classes[n]&&r&&r.length&&(i=e(r.get()),this._removeClass(r,n),i.addClass(this._classes({element:i,keys:n,classes:t,add:!0})))},_setOptionDisabled:function(e){this._toggleClass(this.widget(),this.widgetFullName+"-disabled",null,!!e),e&&(this._removeClass(this.hoverable,null,"ui-state-hover"),this._removeClass(this.focusable,null,"ui-state-focus"))},enable:function(){return this._setOptions({disabled:!1})},disable:function(){return this._setOptions({disabled:!0})},_classes:function(t){function n(n,o){var s,a;for(a=0;a<n.length;a++)s=r.classesElementLookup[n[a]]||e(),s=t.add?e(e.unique(s.get().concat(t.element.get()))):e(s.not(t.element).get()),r.classesElementLookup[n[a]]=s,i.push(n[a]),o&&t.classes[n[a]]&&i.push(t.classes[n[a]])}var i=[],r=this;return t=e.extend({element:this.element,classes:this.options.classes||{}},t),this._on(t.element,{remove:"_untrackClassesElement"}),t.keys&&n(t.keys.match(/\S+/g)||[],!0),t.extra&&n(t.extra.match(/\S+/g)||[]),i.join(" ")},_untrackClassesElement:function(t){var n=this;e.each(n.classesElementLookup,function(i,r){-1!==e.inArray(t.target,r)&&(n.classesElementLookup[i]=e(r.not(t.target).get()))})},_removeClass:function(e,t,n){return this._toggleClass(e,t,n,!1)},_addClass:function(e,t,n){return this._toggleClass(e,t,n,!0)},_toggleClass:function(e,t,n,i){i="boolean"==typeof i?i:n;var r="string"==typeof e||null===e,o={extra:r?t:n,keys:r?e:t,element:r?this.element:e,add:i};return o.element.toggleClass(this._classes(o),i),this},_on:function(t,n,i){var r,o=this;"boolean"!=typeof t&&(i=n,n=t,t=!1),i?(n=r=e(n),this.bindings=this.bindings.add(n)):(i=n,n=this.element,r=this.widget()),e.each(i,function(i,s){function 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this.tree._callHook("nodeSetStatus",this,e,t,n)},setTitle:function(e){this.title=e,this.renderTitle(),this.triggerModify("rename")},sortChildren:function(e,t){var n,i,r=this.children;if(r){if(e=e||function(e,t){var n=e.title.toLowerCase(),i=t.title.toLowerCase();return n===i?0:n>i?1:-1},r.sort(e),t)for(n=0,i=r.length;n<i;n++)r[n].children&&r[n].sortChildren(e,"$norender$");"$norender$"!==t&&this.render(),this.triggerModifyChild("sort")}},toDict:function(t,n){var i,r,o,s={},a=this;if(e.each(A,function(e,t){(a[t]||!1===a[t])&&(s[t]=a[t])}),e.isEmptyObject(this.data)||(s.data=e.extend({},this.data),e.isEmptyObject(s.data)&&delete s.data),n&&n(s,a),t&&this.hasChildren())for(s.children=[],i=0,r=this.children.length;i<r;i++)(o=this.children[i]).isStatusNode()||s.children.push(o.toDict(!0,n));return s},toggleClass:function(t,n){var i,r,o=t.match(/\S+/g)||[],s=0,a=!1,l=this[this.tree.statusClassPropName],d=" "+(this.extraClasses||"")+" ";for(l&&e(l).toggleClass(t,n);i=o[s++];)if(r=d.indexOf(" 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setTimeout(function(){s._loadKeyPathImpl(a,u,l,c).done(function(){a.resolve()})},0),a.promise()},_loadKeyPathImpl:function(t,n,i,r){function o(e,t){var i,r,o=e.children;if(o)for(i=0,r=o.length;i<r;i++)if(n.matchKey(o[i],t))return o[i];return null}function s(e,t,i){n.callback(y,t,"loading"),t.load().done(function(){y._loadKeyPathImpl.call(y,e,n,t,i).always(l(e,y))}).fail(function(i){y.warn("loadKeyPath: error loading lazy "+t),n.callback(y,u,"error"),e.rejectWith(y)})}var a,d,c,u,h,f,p,g,y=this;for(h={},d=0;d<r.length;d++)for(p=r[d],f=i;p.length;){if(c=p.shift(),!(u=o(f,c))){this.warn("loadKeyPath: key not found: "+c+" (parent: "+f+")"),n.callback(this,c,"error");break}if(0===p.length){n.callback(this,u,"ok");break}if(u.lazy&&void 0===u.hasChildren()){n.callback(this,u,"loaded"),h[c=u.key]?h[c].pathSegList.push(p):h[c]={parent:u,pathSegList:[p]};break}n.callback(this,u,"loaded"),f=u}a=[];for(var v in h){var m=h[v];g=new e.Deferred,a.push(g),s(g,m.parent,m.pathSegList)}return 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r=t.tree,o=!0,s=!1,a=!1;switch(n){case"aria":case"checkbox":case"icon":case"minExpandLevel":case"tabindex":s=!0,a=!0;break;case"escapeTitles":case"tooltip":a=!0;break;case"rtl":!1===i?r.$container.removeAttr("DIR").removeClass("fancytree-rtl"):r.$container.attr("DIR","RTL").addClass("fancytree-rtl"),a=!0;break;case"source":o=!1,r._callHook("treeLoad",r,i),a=!0}r.debug("set option "+n+"="+i+" <"+typeof 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data."},tabindex:"0",titlesTabbable:!1,tooltip:!1,_classNames:{node:"fancytree-node",folder:"fancytree-folder",animating:"fancytree-animating",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partload:"fancytree-partload",partsel:"fancytree-partsel",radio:"fancytree-radio",unselectable:"fancytree-unselectable",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error",statusNodePrefix:"fancytree-statusnode-"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new f(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul:first");var n,r,s,a=this.options,l=a.extensions;this.tree;for(s=0;s<l.length;s++)r=l[s],(n=e.ui.fancytree._extensions[r])||e.error("Could not apply extension '"+r+"' (it is not registered, did you 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this.tree._callHook("treeSetOption",this.tree,e,t)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),e.Widget.prototype.destroy.call(this)},_unbind:function(){var t=this.tree._ns;this.element.off(t),this.tree.$container.off(t),e(document).off(t)},_bind:function(){var t=this,n=this.options,i=this.tree,r=i._ns;this._unbind(),i.$container.on("focusin"+r+" focusout"+r,function(t){var n=y.getNode(t),r="focusin"===t.type;if(!r&&n&&e(t.target).is("a"))n.debug("Ignored focusout on embedded <a> element.");else{if(r){if(i._getExpiringValue("focusin"))return void i.debug("Ignored double focusin.");i._setExpiringValue("focusin",!0,50),n||(n=i._getExpiringValue("mouseDownNode"))&&i.debug("Reconstruct mouse target for focusin from recent event.")}n?i._callHook("nodeSetFocus",i._makeHookContext(n,t),r):i.tbody&&e(t.target).parents("table.fancytree-container > thead").length?i.debug("Ignore focus event outside table 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i.targetType=r.type,!1!==s._triggerNodeEvent("dblclick",i,e)&&s._callHook("nodeDblclick",i)}}finally{s.phase=a}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(e){return this.tree.getNodeByKey(e)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),y=e.ui.fancytree,e.extend(e.ui.fancytree,{version:"2.30.2",buildType: "production",debugLevel: 3,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:f,_FancytreeNodeClass:h,jquerySupports:{positionMyOfs:function(t,n,i,r){var o,s,a,l=e.map(e.trim(t).split("."),function(e){return parseInt(e,10)}),d=e.map(Array.prototype.slice.call(arguments,1),function(e){return parseInt(e,10)});for(o=0;o<d.length;o++)if(s=l[o]||0,a=d[o]||0,s!==a)return s>a;return!0}(e.ui.version,1,9)},assert:function(e,n){return t(e,n)},createTree:function(t,n){return e(t).fancytree(n).fancytree("getTree")},debounce:function(e,t,n,i){var r;return 3===arguments.length&&"boolean"!=typeof 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F)h.hasOwnProperty(f)&&(h[F[f]]=h[f],delete h[f]);for(o=0,a=A.length;o<a;o++)l=A[o],null!=(c=h[l])&&(delete h[l],v[l]=c);e.extend(v.data,h)}(t=p.find(">ul:first")).length?v.children=e.ui.fancytree.parseHtml(t):v.children=v.lazy?void 0:null,u.push(v)}),u},registerExtension:function(n){t(null!=n.name,"extensions must have a `name` property."),t(null!=n.version,"extensions must have a `version` property."),e.ui.fancytree._extensions[n.name]=n},unescapeHtml:function(e){var t=document.createElement("div");return t.innerHTML=e,0===t.childNodes.length?"":t.childNodes[0].nodeValue},warn:function(t){e.ui.fancytree.debugLevel>=2&&n("warn",arguments)}}),e.ui.fancytree}e.ui.fancytree.warn("Fancytree: ignored duplicate include")}}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";return e.ui.fancytree._FancytreeClass.prototype.countSelected=function(e){this.options;return this.getSelectedNodes(e).length},e.ui.fancytree._FancytreeNodeClass.prototype.updateCounters=function(){var t=e("span.fancytree-childcounter",this.span),n=this.tree.options.childcounter,i=this.countChildren(n.deep);this.data.childCounter=i,!i&&n.hideZeros||this.isExpanded()&&n.hideExpanded?t.remove():(t.length||(t=e("<span class='fancytree-childcounter'/>").appendTo(e("span.fancytree-icon,span.fancytree-custom-icon",this.span))),t.text(i)),!n.deep||this.isTopLevel()||this.isRoot()||this.parent.updateCounters()},e.ui.fancytree.prototype.widgetMethod1=function(e){this.tree;return e},e.ui.fancytree.registerExtension({name:"childcounter",version:"2.30.2",options:{deep:!0,hideZeros:!0,hideExpanded:!1},foo:42,_appendCounter:function(e){},treeInit:function(e){e.options,e.options.childcounter;this._superApply(arguments),this.$container.addClass("fancytree-ext-childcounter")},treeDestroy:function(e){this._superApply(arguments)},nodeRenderTitle:function(t,n){var i=t.node,r=t.options.childcounter,o=null==i.data.childCounter?i.countChildren(r.deep):+i.data.childCounter;this._super(t,n),!o&&r.hideZeros||i.isExpanded()&&r.hideExpanded||e("span.fancytree-icon,span.fancytree-custom-icon",i.span).append(e("<span class='fancytree-childcounter'/>").text(o))},nodeSetExpanded:function(e,t,n){var i=e.tree;e.node;return this._superApply(arguments).always(function(){i.nodeRenderTitle(e)})}}),e.ui.fancytree}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n){t||(n=n?": "+n:"",e.error("Assertion failed"+n))}return e.ui.fancytree._FancytreeNodeClass.prototype.getCloneList=function(t){var n,i=this.tree,r=i.refMap[this.refKey]||null,o=i.keyMap;return r&&(n=this.key,t?r=e.map(r,function(e){return o[e]}):(r=e.map(r,function(e){return e===n?null:o[e]})).length<1&&(r=null)),r},e.ui.fancytree._FancytreeNodeClass.prototype.isClone=function(){var e=this.refKey||null,t=e&&this.tree.refMap[e]||null;return!!(t&&t.length>1)},e.ui.fancytree._FancytreeNodeClass.prototype.reRegister=function(t,n){t=null==t?null:""+t,n=null==n?null:""+n;var i=this.tree,r=this.key,o=this.refKey,s=i.keyMap,a=i.refMap,l=a[o]||null,d=!1;return null!=t&&t!==this.key&&(s[t]&&e.error("[ext-clones] reRegister("+t+"): already exists: "+this),delete s[r],s[t]=this,l&&(a[o]=e.map(l,function(e){return 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this.refMap[e],this.refMap[t]=r}},e.ui.fancytree.registerExtension({name:"clones",version:"2.30.2",options:{highlightActiveClones:!0,highlightClones:!1},treeCreate:function(e){this._superApply(arguments),e.tree.refMap={},e.tree.keyMap={}},treeInit:function(n){this.$container.addClass("fancytree-ext-clones"),t(null==n.options.defaultKey),n.options.defaultKey=function(t){return function(t){var n=e.map(t.getParentList(!1,!0),function(e){return e.refKey||e.key});return n=n.join("/"),"id_"+function(e,t,n){for(var i,r,o=3&e.length,s=e.length-o,a=n,l=0;l<s;)r=255&e.charCodeAt(l)|(255&e.charCodeAt(++l))<<8|(255&e.charCodeAt(++l))<<16|(255&e.charCodeAt(++l))<<24,++l,a=27492+(65535&(i=5*(65535&(a=(a^=r=461845907*(65535&(r=(r=3432918353*(65535&r)+((3432918353*(r>>>16)&65535)<<16)&4294967295)<<15|r>>>17))+((461845907*(r>>>16)&65535)<<16)&4294967295)<<13|a>>>19))+((5*(a>>>16)&65535)<<16)&4294967295))+((58964+(i>>>16)&65535)<<16);switch(r=0,o){case 3:r^=(255&e.charCodeAt(l+2))<<16;case 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not registered: "+r.key),delete l[c],u&&(o=d[u])&&((s=o.length)<=1?(t(1===s),t(o[0]===c),delete d[u]):(!function(e,t){var n;for(n=e.length-1;n>=0;n--)if(e[n]===t)return e.splice(n,1),!0}(o,c),2===s&&n.options.clones.highlightClones&&l[o[0]].renderStatus()))),this._super(n,i,r))},nodeRenderStatus:function(t){var n,i,r=t.node;return i=this._super(t),t.options.clones.highlightClones&&(n=e(r[t.tree.statusClassPropName])).length&&r.isClone()&&n.addClass("fancytree-clone"),i},nodeSetActive:function(t,n,i){var r,o=t.tree.statusClassPropName,s=t.node;return r=this._superApply(arguments),t.options.clones.highlightActiveClones&&s.isClone()&&e.each(s.getCloneList(!0),function(t,i){e(i[o]).toggleClass("fancytree-active-clone",!1!==n)}),r}}),e.ui.fancytree}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(){y=null,v=null,m&&m.removeClass(s+" "+a),m=null,x=null,C=null}function n(e){return 0===e?"":e>0?"+"+e:""+e}function i(t,i){if(i.options.dnd5.scroll&&function(t,n){var i,r,o=t.options.dnd5,s=t.$scrollParent[0],a=o.scrollSensitivity,l=o.scrollSpeed,d=0;s!==document&&"HTML"!==s.tagName?(i=t.$scrollParent.offset(),r=s.scrollTop,i.top+s.offsetHeight-n.pageY<a?s.scrollHeight-t.$scrollParent.innerHeight()-r>0&&(s.scrollTop=d=r+l):r>0&&n.pageY-i.top<a&&(s.scrollTop=d=r-l)):(r=e(document).scrollTop())>0&&n.pageY-r<a?(d=r-l,e(document).scrollTop(d)):e(window).height()-(n.pageY-r)<a&&(d=r+l,e(document).scrollTop(d)),d&&t.debug("autoScroll: "+d+"px")}(i.tree,t),!i.node)return i.tree.warn("Ignored dragover for non-node"),b;var o,s,a,p,y=null,v=i.tree,m=v.options,C=m.dnd5,_=i.node,k=i.otherNode,w="center",N=e(_.span),S=N.find("span.fancytree-title");if(!1===x)return v.debug("Ignored dragover, since dragenter returned false."),!1;if("string"==typeof x?e.error("assert failed: dragenter returned string"):(s=N.offset(),p=(t.pageY-s.top)/N.height(),x.after&&p>.75?y="after":!x.over&&x.after&&p>.5?y="after":x.before&&p<=.25?y="before":!x.over&&x.before&&p<=.5?y="before":x.over&&(y="over"),C.preventVoidMoves&&(_===k?(_.debug("Drop over source node prevented."),y=null):"before"===y&&k&&_===k.getNextSibling()?(_.debug("Drop after source node prevented."),y=null):"after"===y&&k&&_===k.getPrevSibling()?(_.debug("Drop before source node prevented."),y=null):"over"===y&&k&&k.parent===_&&k.isLastSibling()&&(_.debug("Drop last child over own parent prevented."),y=null))),i.hitMode=y,y&&C.dragOver&&(C.dragOver(_,i),y=i.hitMode),b=y,"after"===y||"before"===y||"over"===y){switch(o=C.dropMarkerOffsetX||0,y){case"before":w="top",o+=C.dropMarkerInsertOffsetX||0;break;case"after":w="bottom",o+=C.dropMarkerInsertOffsetX||0}a={my:"left"+n(o)+" center",at:"left "+w,of:S},m.rtl&&(a.my="right"+n(-o)+" center",a.at="right "+w),g.toggleClass(d,"after"===y).toggleClass(u,"over"===y).toggleClass(c,"before"===y).show().position(r.fixPositionOptions(a))}else g.hide();return e(_.span).toggleClass(f,"after"===y||"before"===y||"over"===y).toggleClass(d,"after"===y).toggleClass(c,"before"===y).toggleClass(l,"over"===y).toggleClass(h,!1===y),y}var r=e.ui.fancytree,o=/Mac/.test(navigator.platform),s="fancytree-drag-source",a="fancytree-drag-remove",l="fancytree-drop-accept",d="fancytree-drop-after",c="fancytree-drop-before",u="fancytree-drop-over",h="fancytree-drop-reject",f="fancytree-drop-target",p="application/x-fancytree-node",g=null,y=null,v=null,m=null,x=null,b=null,C=null;return e.ui.fancytree.registerExtension({name:"dnd5",version:"2.30.2",options:{autoExpandMS:1500,dropMarkerInsertOffsetX:-16,dropMarkerOffsetX:-24,multiSource:!1,dragImage:null,dropEffect:null,dropEffectDefault:"move",preventForeignNodes:!1,preventNonNodes:!1,preventRecursiveMoves:!0,preventVoidMoves:!0,scroll:!0,scrollSensitivity:20,scrollSpeed:5,setTextTypeJson:!1,dragStart:null,dragDrag:e.noop,dragEnd:e.noop,dragEnter:null,dragOver:e.noop,dragExpand:e.noop,dragDrop:e.noop,dragLeave:e.noop},treeInit:function(n){var d,c,f,_=n.tree,k=n.options,w=k.glyph||null,N=k.dnd5,S=r.getNode;e.inArray("dnd",k.extensions)>=0&&e.error("Extensions 'dnd' and 'dnd5' are mutually exclusive."),N.dragStop&&e.error("dragStop is not used by ext-dnd5. Use dragEnd instead."),N.dragStart&&r.overrideMethod(n.options,"createNode",function(e,t){this._super.apply(this,arguments),t.node.span.draggable=!0}),this._superApply(arguments),this.$container.addClass("fancytree-ext-dnd5"),f=e("<span>").appendTo(this.$container),this.$scrollParent=f.scrollParent(),f.remove(),(g=e("#fancytree-drop-marker")).length||(g=e("<div id='fancytree-drop-marker'></div>").hide().css({"z-index":1e3,"pointer-events":"none"}).prependTo("body"),w&&r.setSpanIcon(g[0],w.map._addClass,w.map.dropMarker)),g.toggleClass("fancytree-rtl",!!k.rtl),N.dragStart&&_.$container.on("dragstart drag dragend",function(n){var i,r=S(n),l=n.dataTransfer||n.originalEvent.dataTransfer,u={node:r,tree:_,options:_.options,originalEvent:n,dataTransfer:l,isCancelled:void 0},h=function(e,t){var n=t.options.dnd5,i=n.dropEffectDefault;if(n.dropEffect)return n.dropEffect(e,t);if(o){if(e.metaKey&&e.altKey)return"link";if(e.metaKey)return"move";if(e.altKey)return"copy"}else{if(e.ctrlKey)return"copy";if(e.shiftKey)return"move";if(e.altKey)return"link"}return i}(n,u),f="move"===h;switch(n.type){case"dragstart":if(!r)return _.info("Ignored dragstart on a non-node."),!1;y=r,!1===N.multiSource?v=[r]:!0===N.multiSource?(v=_.getSelectedNodes(),r.isSelected()||v.unshift(r)):v=N.multiSource(r,u),(m=e(e.map(v,function(e){return e.span}))).addClass(s),i=JSON.stringify(r.toDict());try{l.setData(p,i),l.setData("text/html",e(r.span).html()),l.setData("text/plain",r.title)}catch(e){_.warn("Could not set data (IE only accepts 'text') - "+e)}return N.setTextTypeJson?l.setData("text",i):l.setData("text",r.title),l.effectAllowed="all",c=null,N.dragImage?N.dragImage(r,u):(d=e(r.span).find(".fancytree-title"),v&&v.length>1&&(c=e("<span class='fancytree-childcounter'/>").text("+"+(v.length-1)).appendTo(d)),l.setDragImage&&l.setDragImage(d[0],-10,-10)),!1!==N.dragStart(r,u)?!0:(t(),!1);case"drag":m.toggleClass(a,f),N.dragDrag(r,u);break;case"dragend":t(),u.isCancelled="none"===h,g.hide(),c&&(c.remove(),c=null),N.dragEnd(r,u)}}),N.dragEnter&&_.$container.on("dragenter dragover dragleave drop",function(n){var r,o,s,a,d=null,c=S(n),f=n.dataTransfer||n.originalEvent.dataTransfer,m={node:c,tree:_,options:_.options,hitMode:x,originalEvent:n,dataTransfer:f,otherNode:y||null,otherNodeList:v||null,otherNodeData:null,dropEffect:void 0,isCancelled:void 0};switch(n.type){case"dragenter":if(C=null,!c){_.debug("Ignore non-node "+n.type+": "+n.target.tagName+"."+n.target.className),x=!1;break}if(e(c.span).addClass(u).removeClass(l+" "+h),s=e.inArray(p,f.types)>=0,N.preventNonNodes&&!s){c.debug("Reject dropping a non-node."),x=!1;break}if(N.preventForeignNodes&&(!y||y.tree!==c.tree)){c.debug("Reject dropping a foreign node."),x=!1;break}g.show(),N.preventRecursiveMoves&&c.isDescendantOf(m.otherNode)?(c.debug("Reject dropping below own ancestor."),a=!1):a=function(t){var n;return!!t&&(n=e.isPlainObject(t)?{over:!!t.over,before:!!t.before,after:!!t.after}:e.isArray(t)?{over:e.inArray("over",t)>=0,before:e.inArray("before",t)>=0,after:e.inArray("after",t)>=0}:{over:!0===t||"over"===t,before:!0===t||"before"===t,after:!0===t||"after"===t},0!==Object.keys(n).length&&n)}(N.dragEnter(c,m)),x=a,d=a&&(a.over||a.before||a.after);break;case"dragover":if(!c){_.debug("Ignore non-node "+n.type+": "+n.target.tagName+"."+n.target.className);break}d=!!(b=i(n,m)),"over"!==b||c.expanded||!1===c.hasChildren()?C=null:C?N.autoExpandMS&&Date.now()-C>N.autoExpandMS&&(!N.dragExpand||!1!==N.dragExpand(c,m))&&c.setExpanded():C=Date.now();break;case"dragleave":if(!c){_.debug("Ignore non-node "+n.type+": "+n.target.tagName+"."+n.target.className);break}if(!e(c.span).hasClass(u)){c.debug("Ignore dragleave (multi).");break}e(c.span).removeClass(u+" "+l+" "+h),c.scheduleAction("cancel"),N.dragLeave(c,m),g.hide();break;case"drop":if(e.inArray(p,f.types)>=0&&(o=f.getData(p),_.info(n.type+": getData('application/x-fancytree-node'): '"+o+"'")),o||(o=f.getData("text"),_.info(n.type+": getData('text'): '"+o+"'")),o)try{void 0!==(r=JSON.parse(o)).title&&(m.otherNodeData=r)}catch(e){}_.debug(n.type+": nodeData: '"+o+"', otherNodeData: ",m.otherNodeData),e(c.span).removeClass(u+" "+l+" "+h),g.hide(),m.hitMode=b,m.dropEffect=f.dropEffect,m.isCancelled="none"===m.dropEffect,N.dragDrop(c,m),n.preventDefault(),t()}if(d)return n.preventDefault(),!1})}}),e.ui.fancytree}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";var t=/Mac/.test(navigator.platform),n=e.ui.fancytree.escapeHtml,i=e.ui.fancytree.unescapeHtml;return e.ui.fancytree._FancytreeNodeClass.prototype.editStart=function(){var t,n=this,r=this.tree,o=r.ext.edit,s=r.options.edit,a=e(".fancytree-title",n.span),l={node:n,tree:r,options:r.options,isNew:e(n[r.statusClassPropName]).hasClass("fancytree-edit-new"),orgTitle:n.title,input:null,dirty:!1};if(!1===s.beforeEdit.call(n,{type:"beforeEdit"},l))return!1;e.ui.fancytree.assert(!o.currentNode,"recursive edit"),o.currentNode=this,o.eventData=l,r.widget._unbind(),o.lastDraggableAttrValue=n.span.draggable,o.lastDraggableAttrValue&&(n.span.draggable=!1),e(document).on("mousedown.fancytree-edit",function(t){e(t.target).hasClass("fancytree-edit-input")||n.editEnd(!0,t)}),t=e("<input />",{class:"fancytree-edit-input",type:"text",value:r.options.escapeTitles?l.orgTitle:i(l.orgTitle)}),o.eventData.input=t,null!=s.adjustWidthOfs&&t.width(a.width()+s.adjustWidthOfs),null!=s.inputCss&&t.css(s.inputCss),a.html(t),t.focus().change(function(e){t.addClass("fancytree-edit-dirty")}).keydown(function(t){switch(t.which){case e.ui.keyCode.ESCAPE:n.editEnd(!1,t);break;case e.ui.keyCode.ENTER:return n.editEnd(!0,t),!1}t.stopPropagation()}).blur(function(e){return n.editEnd(!0,e)}),s.edit.call(n,{type:"edit"},l)},e.ui.fancytree._FancytreeNodeClass.prototype.editEnd=function(t,i){var r,o=this,s=this.tree,a=s.ext.edit,l=a.eventData,d=s.options.edit,c=e(".fancytree-title",o.span).find("input.fancytree-edit-input");return d.trim&&c.val(e.trim(c.val())),r=c.val(),l.dirty=r!==o.title,l.originalEvent=i,!1===t?l.save=!1:l.isNew?l.save=""!==r:l.save=l.dirty&&""!==r,!1!==d.beforeClose.call(o,{type:"beforeClose"},l)&&((!l.save||!1!==d.save.call(o,{type:"save"},l))&&(c.removeClass("fancytree-edit-dirty").off(),e(document).off(".fancytree-edit"),l.save?(o.setTitle(s.options.escapeTitles?r:n(r)),o.setFocus()):l.isNew?(o.remove(),o=l.node=null,a.relatedNode.setFocus()):(o.renderTitle(),o.setFocus()),a.eventData=null,a.currentNode=null,a.relatedNode=null,s.widget._bind(),a.lastDraggableAttrValue&&(o.span.draggable=!0),e(s.$container).focus(),l.input=null,d.close.call(o,{type:"close"},l),!0))},e.ui.fancytree._FancytreeNodeClass.prototype.editCreateNode=function(t,n){var i,r=this.tree,o=this;t=t||"child",null==n?n={title:""}:"string"==typeof n?n={title:n}:e.ui.fancytree.assert(e.isPlainObject(n)),"child"!==t||this.isExpanded()||!1===this.hasChildren()?((i=this.addNode(n,t)).match=!0,e(i[r.statusClassPropName]).removeClass("fancytree-hide").addClass("fancytree-match"),i.makeVisible().done(function(){e(i[r.statusClassPropName]).addClass("fancytree-edit-new"),o.tree.ext.edit.relatedNode=o,i.editStart()})):this.setExpanded().done(function(){o.editCreateNode(t,n)})},e.ui.fancytree._FancytreeClass.prototype.isEditing=function(){return this.ext.edit?this.ext.edit.currentNode:null},e.ui.fancytree._FancytreeNodeClass.prototype.isEditing=function(){return!!this.tree.ext.edit&&this.tree.ext.edit.currentNode===this},e.ui.fancytree.registerExtension({name:"edit",version:"2.30.2",options:{adjustWidthOfs:4,allowEmpty:!1,inputCss:{minWidth:"3em"},triggerStart:["f2","mac+enter","shift+click"],trim:!0,beforeClose:e.noop,beforeEdit:e.noop,close:e.noop,edit:e.noop,save:e.noop},currentNode:null,treeInit:function(e){this._superApply(arguments),this.$container.addClass("fancytree-ext-edit")},nodeClick:function(t){var n=e.ui.fancytree.eventToString(t.originalEvent),i=t.options.edit.triggerStart;return"shift+click"===n&&e.inArray("shift+click",i)>=0&&t.originalEvent.shiftKey?(t.node.editStart(),!1):"click"===n&&e.inArray("clickActive",i)>=0&&t.node.isActive()&&!t.node.isEditing()&&e(t.originalEvent.target).hasClass("fancytree-title")?(t.node.editStart(),!1):this._superApply(arguments)},nodeDblclick:function(t){return e.inArray("dblclick",t.options.edit.triggerStart)>=0?(t.node.editStart(),!1):this._superApply(arguments)},nodeKeydown:function(n){switch(n.originalEvent.which){case 113:if(e.inArray("f2",n.options.edit.triggerStart)>=0)return n.node.editStart(),!1;break;case e.ui.keyCode.ENTER:if(e.inArray("mac+enter",n.options.edit.triggerStart)>=0&&t)return n.node.editStart(),!1}return this._superApply(arguments)}}),e.ui.fancytree}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(e){return(e+"").replace(/([.?*+\^\$\[\]\\(){}|-])/g,"\\$1")}var n="__not_found__",i=e.ui.fancytree.escapeHtml;return e.ui.fancytree._FancytreeClass.prototype._applyFilterImpl=function(r,o,s){var a,l,d,c,u,h=0,f=this.options,p=f.escapeTitles,g=f.autoCollapse,y=e.extend({},f.filter,s),v="hide"===y.mode,m=!!y.leavesOnly&&!o;if("string"==typeof r){if(""===r)return this.warn("Fancytree passing an empty string as a filter is handled as clearFilter()."),void this.clearFilter();a=y.fuzzy?r.split("").reduce(function(e,t){return e+"[^"+t+"]*"+t}):t(r),d=new RegExp(".*"+a+".*","i"),c=new RegExp(t(r),"gi"),r=function(t){if(!t.title)return!1;var n=p?t.title:function(t){return t.indexOf(">")>=0?e("<div/>").html(t).text():t}(t.title),r=!!d.test(n);return r&&y.highlight&&(p?(u=n.replace(c,function(e){return"\ufff7"+e+"\ufff8"}),t.titleWithHighlight=i(u).replace(/\uFFF7/g,"<mark>").replace(/\uFFF8/g,"</mark>")):t.titleWithHighlight=n.replace(c,function(e){return"<mark>"+e+"</mark>"})),r}}return this.enableFilter=!0,this.lastFilterArgs=arguments,this.$div.addClass("fancytree-ext-filter"),v?this.$div.addClass("fancytree-ext-filter-hide"):this.$div.addClass("fancytree-ext-filter-dimm"),this.$div.toggleClass("fancytree-ext-filter-hide-expanders",!!y.hideExpanders),this.visit(function(e){delete e.match,delete e.titleWithHighlight,e.subMatchCount=0}),(l=this.getRootNode()._findDirectChild(n))&&l.remove(),f.autoCollapse=!1,this.visit(function(e){if(!m||null==e.children){var t=r(e),n=!1;if("skip"===t)return e.visit(function(e){e.match=!1},!0),"skip";t||!o&&"branch"!==t||!e.parent.match||(t=!0,n=!0),t&&(h++,e.match=!0,e.visitParents(function(e){e.subMatchCount+=1,!y.autoExpand||n||e.expanded||(e.setExpanded(!0,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),e._filterAutoExpanded=!0)}))}}),f.autoCollapse=g,0===h&&y.nodata&&v&&(l=y.nodata,e.isFunction(l)&&(l=l()),!0===l?l={}:"string"==typeof l&&(l={title:l}),l=e.extend({statusNodeType:"nodata",key:n,title:this.options.strings.noData},l),this.getRootNode().addNode(l).match=!0),this.render(),h},e.ui.fancytree._FancytreeClass.prototype.filterNodes=function(e,t){return"boolean"==typeof t&&(t={leavesOnly:t},this.warn("Fancytree.filterNodes() leavesOnly option is deprecated since 2.9.0 / 2015-04-19. Use opts.leavesOnly instead.")),this._applyFilterImpl(e,!1,t)},e.ui.fancytree._FancytreeClass.prototype.applyFilter=function(e){return this.warn("Fancytree.applyFilter() is deprecated since 2.1.0 / 2014-05-29. Use .filterNodes() instead."),this.filterNodes.apply(this,arguments)},e.ui.fancytree._FancytreeClass.prototype.filterBranches=function(e,t){return this._applyFilterImpl(e,!0,t)},e.ui.fancytree._FancytreeClass.prototype.clearFilter=function(){var t,i=this.getRootNode()._findDirectChild(n),r=this.options.escapeTitles,o=this.options.enhanceTitle;i&&i.remove(),this.visit(function(n){n.match&&n.span&&(t=e(n.span).find(">span.fancytree-title"),r?t.text(n.title):t.html(n.title),o&&o({type:"enhanceTitle"},{node:n,$title:t})),delete n.match,delete n.subMatchCount,delete n.titleWithHighlight,n.$subMatchBadge&&(n.$subMatchBadge.remove(),delete n.$subMatchBadge),n._filterAutoExpanded&&n.expanded&&n.setExpanded(!1,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),delete n._filterAutoExpanded}),this.enableFilter=!1,this.lastFilterArgs=null,this.$div.removeClass("fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"),this.render()},e.ui.fancytree._FancytreeClass.prototype.isFilterActive=function(){return!!this.enableFilter},e.ui.fancytree._FancytreeNodeClass.prototype.isMatched=function(){return!(this.tree.enableFilter&&!this.match)},e.ui.fancytree.registerExtension({name:"filter",version:"2.30.2",options:{autoApply:!0,autoExpand:!1,counter:!0,fuzzy:!1,hideExpandedCounter:!0,hideExpanders:!1,highlight:!0,leavesOnly:!1,nodata:!0,mode:"dimm"},nodeLoadChildren:function(e,t){return this._superApply(arguments).done(function(){e.tree.enableFilter&&e.tree.lastFilterArgs&&e.options.filter.autoApply&&e.tree._applyFilterImpl.apply(e.tree,e.tree.lastFilterArgs)})},nodeSetExpanded:function(e,t,n){return delete e.node._filterAutoExpanded,!t&&e.options.filter.hideExpandedCounter&&e.node.$subMatchBadge&&e.node.$subMatchBadge.show(),this._superApply(arguments)},nodeRenderStatus:function(t){var n,i=t.node,r=t.tree,o=t.options.filter,s=e(i.span).find("span.fancytree-title"),a=e(i[r.statusClassPropName]),l=t.options.enhanceTitle,d=t.options.escapeTitles;return n=this._super(t),a.length&&r.enableFilter?(a.toggleClass("fancytree-match",!!i.match).toggleClass("fancytree-submatch",!!i.subMatchCount).toggleClass("fancytree-hide",!(i.match||i.subMatchCount)),!o.counter||!i.subMatchCount||i.isExpanded()&&o.hideExpandedCounter?i.$subMatchBadge&&i.$subMatchBadge.hide():(i.$subMatchBadge||(i.$subMatchBadge=e("<span class='fancytree-childcounter'/>"),e("span.fancytree-icon, span.fancytree-custom-icon",i.span).append(i.$subMatchBadge)),i.$subMatchBadge.show().text(i.subMatchCount)),!i.span||i.isEditing&&i.isEditing.call(i)||(i.titleWithHighlight?s.html(i.titleWithHighlight):d?s.text(i.title):s.html(i.title),l&&l({type:"enhanceTitle"},{node:i,$title:s})),n):n}}),e.ui.fancytree}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n,i,r){var o=i.map,s=o[r],a=e(t),l=n+" "+(o._addClass||"");"string"==typeof s?(t.innerHTML="",a.attr("class",l+" "+s)):s&&(s.text?t.textContent=""+s.text:s.html?t.innerHTML=s.html:t.innerHTML="",a.attr("class",l+" "+(s.addClass||"")))}var n=e.ui.fancytree,i={awesome3:{_addClass:"",checkbox:"icon-check-empty",checkboxSelected:"icon-check",checkboxUnknown:"icon-check icon-muted",dragHelper:"icon-caret-right",dropMarker:"icon-caret-right",error:"icon-exclamation-sign",expanderClosed:"icon-caret-right",expanderLazy:"icon-angle-right",expanderOpen:"icon-caret-down",loading:"icon-refresh icon-spin",nodata:"icon-meh",noExpander:"",radio:"icon-circle-blank",radioSelected:"icon-circle",doc:"icon-file-alt",docOpen:"icon-file-alt",folder:"icon-folder-close-alt",folderOpen:"icon-folder-open-alt"},awesome4:{_addClass:"fa",checkbox:"fa-square-o",checkboxSelected:"fa-check-square-o",checkboxUnknown:"fa-square fancytree-helper-indeterminate-cb",dragHelper:"fa-arrow-right",dropMarker:"fa-long-arrow-right",error:"fa-warning",expanderClosed:"fa-caret-right",expanderLazy:"fa-angle-right",expanderOpen:"fa-caret-down",loading:{html:"<span class='fa fa-spinner fa-pulse' />"},nodata:"fa-meh-o",noExpander:"",radio:"fa-circle-thin",radioSelected:"fa-circle",doc:"fa-file-o",docOpen:"fa-file-o",folder:"fa-folder-o",folderOpen:"fa-folder-open-o"},awesome5:{_addClass:"",checkbox:"far fa-square",checkboxSelected:"far fa-check-square",checkboxUnknown:"fas fa-square fancytree-helper-indeterminate-cb",radio:"far fa-circle",radioSelected:"fas fa-circle",radioUnknown:"far fa-dot-circle",dragHelper:"fas fa-arrow-right",dropMarker:"fas fa-long-arrow-alt-right",error:"fas fa-exclamation-triangle",expanderClosed:"fas fa-caret-right",expanderLazy:"fas fa-angle-right",expanderOpen:"fas fa-caret-down",loading:"fas fa-spinner fa-pulse",nodata:"far fa-meh",noExpander:"",doc:"far fa-file",docOpen:"far fa-file",folder:"far fa-folder",folderOpen:"far fa-folder-open"},bootstrap3:{_addClass:"glyphicon",checkbox:"glyphicon-unchecked",checkboxSelected:"glyphicon-check",checkboxUnknown:"glyphicon-expand fancytree-helper-indeterminate-cb",dragHelper:"glyphicon-play",dropMarker:"glyphicon-arrow-right",error:"glyphicon-warning-sign",expanderClosed:"glyphicon-menu-right",expanderLazy:"glyphicon-menu-right",expanderOpen:"glyphicon-menu-down",loading:"glyphicon-refresh 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e.ui.fancytree.registerExtension({name:"glyph",version:"2.30.2",options:{preset:null,map:{}},treeInit:function(t){var r=t.tree,o=t.options.glyph;o.preset?(n.assert(!!i[o.preset],"Invalid value for `options.glyph.preset`: "+o.preset),o.map=e.extend({},i[o.preset],o.map)):r.warn("ext-glyph: missing `preset` option."),this._superApply(arguments),r.$container.addClass("fancytree-ext-glyph")},nodeRenderStatus:function(i){var r,o,s,a=i.node,l=e(a.span),d=i.options.glyph;return o=this._super(i),a.isRoot()?o:((s=l.children("span.fancytree-expander").get(0))&&t(s,"fancytree-expander",d,a.expanded&&a.hasChildren()?"expanderOpen":a.isUndefined()?"expanderLazy":a.hasChildren()?"expanderClosed":"noExpander"),(s=a.tr?e("td",a.tr).find("span.fancytree-checkbox").get(0):l.children("span.fancytree-checkbox").get(0))&&(r=n.evalOption("checkbox",a,a,d,!1),a.parent&&a.parent.radiogroup||"radio"===r?t(s,"fancytree-checkbox 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e.ui.fancytree.registerExtension({name:"gridnav",version:"2.30.2",options:{autofocusInput:!1,handleCursorKeys:!0},treeInit:function(t){this._requireExtension("table",!0,!0),this._superApply(arguments),this.$container.addClass("fancytree-ext-gridnav"),this.$container.on("focusin",function(n){var i,r=e.ui.fancytree.getNode(n.target);r&&!r.isActive()&&(i=t.tree._makeHookContext(r,n),t.tree._callHook("nodeSetActive",i,!0))})},nodeSetActive:function(t,n,i){var r=t.options.gridnav,o=t.node,s=t.originalEvent||{},a=e(s.target).is(":input");n=!1!==n,this._superApply(arguments),n&&(t.options.titlesTabbable?(a||(e(o.span).find("span.fancytree-title").focus(),o.setFocus()),t.tree.$container.attr("tabindex","-1")):r.autofocusInput&&!a&&e(o.tr||o.span).find(":input:enabled:first").focus())},nodeKeydown:function(t){var i,o,s,a=t.options.gridnav,l=t.originalEvent,d=e(l.target);return 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module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(n,i,r,o,a){var l,d,c,u,h=!1,f=n.options.persist.expandOpts,p=[],g=[];for(r=r||[],a=a||e.Deferred(),l=0,c=r.length;l<c;l++)d=r[l],(u=n.getNodeByKey(d))?o&&u.isUndefined()?(h=!0,n.debug("_loadLazyNodes: "+u+" is lazy: loading..."),"expand"===o?p.push(u.setExpanded(!0,f)):p.push(u.load())):(n.debug("_loadLazyNodes: "+u+" already loaded."),u.setExpanded(!0,f)):(g.push(d),n.debug("_loadLazyNodes: "+u+" was not yet found."));return e.when.apply(e,p).always(function(){if(h&&g.length>0)t(n,i,g,o,a);else{if(g.length)for(n.warn("_loadLazyNodes: could not load those keys: ",g),l=0,c=g.length;l<c;l++)d=r[l],i._appendKey(s,r[l],!1);a.resolve()}}),a}var n=null,i=window.localStorage?{get:function(e){return 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n.get.call(this,e);null===t?n.remove.call(this,e):n.set.call(this,e,t)},_appendKey:function(t,n,i){n=""+n;var r=this._local,o=this.options.persist.cookieDelimiter,s=r.cookiePrefix+t,a=r._data(s),l=a?a.split(o):[],d=e.inArray(n,l);d>=0&&l.splice(d,1),i&&l.push(n),r._data(s,l.join(o))},treeInit:function(l){var d=l.tree,c=l.options,u=this._local,h=this.options.persist;return u.cookiePrefix=h.cookiePrefix||"fancytree-"+d._id+"-",u.storeActive=h.types.indexOf("active")>=0,u.storeExpanded=h.types.indexOf(s)>=0,u.storeSelected=h.types.indexOf(a)>=0,u.storeFocus=h.types.indexOf("focus")>=0,u.store=null,"auto"===h.store&&(h.store=i?"local":"cookie"),e.isPlainObject(h.store)?u.store=h.store:"cookie"===h.store?u.store=n:"local"===h.store?u.store="local"===h.store?i:r:"session"===h.store&&(u.store="local"===h.store?i:r),o(u.store,"Need a valid store."),d.$div.on("fancytreeinit",function(n){if(!1!==d._triggerTreeEvent("beforeRestore",null,{})){var 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e.key})).join(t.options.persist.cookieDelimiter),d._data(d.cookiePrefix+a,o)):d._appendKey(a,l.key,l.selected)),r}}),e.ui.fancytree}),function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n){n=n||"",t||e.error("Assertion failed "+n)}function n(e,t){e.visit(function(e){var n=e.tr;if(n&&(n.style.display=e.hide||!t?"none":""),!e.expanded)return"skip"})}return e.ui.fancytree.registerExtension({name:"table",version:"2.30.2",options:{checkboxColumnIdx:null,mergeStatusColumns:!0,indentation:16,nodeColumnIdx:0},treeInit:function(n){var i,r,o,s,a=n.tree,l=n.options,d=l.table,c=a.widget.element;if(null!=d.customStatus&&(null!=l.renderStatusColumns?e.error("The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."):(a.warn("The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."),l.renderStatusColumns=d.customStatus)),l.renderStatusColumns&&!0===l.renderStatusColumns&&(l.renderStatusColumns=l.renderColumns),c.addClass("fancytree-container fancytree-ext-table"),(s=c.find(">tbody")).length||(c.find(">tr").length&&e.error("Expected table > tbody > tr. If you see this please open an issue."),s=e("<tbody>").appendTo(c)),a.tbody=s[0],a.columnCount=e("thead >tr:last >th",c).length,(o=s.children("tr:first")).length)r=o.children("td").length,a.columnCount&&r!==a.columnCount&&(a.warn("Column count mismatch between thead ("+a.columnCount+") and tbody ("+r+"): using tbody."),a.columnCount=r),o=o.clone();else for(t(a.columnCount>=1,"Need either <thead> or <tbody> with <td> elements to determine column count."),o=e("<tr />"),i=0;i<a.columnCount;i++)o.append("<td />");o.find(">td").eq(d.nodeColumnIdx).html("<span class='fancytree-node' />"),l.aria&&(o.attr("role","row"),o.find("td").attr("role","gridcell")),a.rowFragment=document.createDocumentFragment(),a.rowFragment.appendChild(o.get(0)),s.empty(),a.statusClassPropName="tr",a.ariaPropName="tr",this.nodeContainerAttrName="tr",a.$container=c,this._superApply(arguments),e(a.rootNode.ul).remove(),a.rootNode.ul=null,this.$container.attr("tabindex",l.tabindex),l.aria&&a.$container.attr("role","treegrid").attr("aria-readonly",!0)},nodeRemoveChildMarkup:function(t){t.node.visit(function(t){t.tr&&(e(t.tr).remove(),t.tr=null)})},nodeRemoveMarkup:function(t){var n=t.node;n.tr&&(e(n.tr).remove(),n.tr=null),this.nodeRemoveChildMarkup(t)},nodeRender:function(i,r,o,s,a){var l,d,c,u,h,f,p,g,y=i.tree,v=i.node,m=i.options,x=!v.parent;if(!1!==y._enableUpdate){if(a||(i.hasCollapsedParents=v.parent&&!v.parent.expanded),!x)if(v.tr&&r&&this.nodeRemoveMarkup(i),v.tr)r?this.nodeRenderTitle(i):this.nodeRenderStatus(i);else{if(i.hasCollapsedParents&&!o)return;h=y.rowFragment.firstChild.cloneNode(!0),t(f=function(n){var i,r,o=n.parent,s=o?o.children:null;if(s&&s.length>1&&s[0]!==n)for(t((r=s[e.inArray(n,s)-1]).tr);r.children&&r.children.length&&(i=r.children[r.children.length-1]).tr;)r=i;else r=o;return r}(v)),!0===s&&a?h.style.display="none":o&&i.hasCollapsedParents&&(h.style.display="none"),f.tr?function(e,t){e.parentNode.insertBefore(t,e.nextSibling)}(f.tr,h):(t(!f.parent,"prev. row must have a tr, or be system 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r;if(a.checkbox&&!l&&null!=a.table.checkboxColumnIdx&&(i=e("span.fancytree-checkbox",s.span),e(s.tr).find("td").eq(+a.table.checkboxColumnIdx).html(i)),this.nodeRenderStatus(t),l){if(a.renderStatusColumns)a.renderStatusColumns.call(t.tree,{type:"renderStatusColumns"},t);else if(a.table.mergeStatusColumns&&s.isTopLevel()){e(s.tr).find(">td").eq(0).prop("colspan",o.columnCount).text(s.title).addClass("fancytree-status-merged").nextAll().remove()}}else a.renderColumns&&a.renderColumns.call(t.tree,{type:"renderColumns"},t);return r},nodeRenderStatus:function(t){var n,i=t.node,r=t.options;this._super(t),e(i.tr).removeClass("fancytree-node"),n=(i.getLevel()-1)*r.table.indentation,r.rtl?e(i.span).css({paddingRight:n+"px"}):e(i.span).css({paddingLeft:n+"px"})},nodeSetExpanded:function(t,i,r){function 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t="string"==typeof t?(i=new RegExp("^"+t,"i"),function(e){return i.test(e.title)}):t,n=n||e,this.visitRows(o,{start:n,includeSelf:!1}),r||n===e||this.visitRows(o,{start:e,includeSelf:!0}),r},findRelatedNode:function(e,t,n){var i=null,r=C.ui.keyCode;switch(t){case"parent":case r.BACKSPACE:e.parent&&e.parent.parent&&(i=e.parent);break;case"first":case r.HOME:this.visit(function(e){if(e.isVisible())return i=e,!1});break;case"last":case r.END:this.visit(function(e){e.isVisible()&&(i=e)});break;case"left":case r.LEFT:e.expanded?e.setExpanded(!1):e.parent&&e.parent.parent&&(i=e.parent);break;case"right":case r.RIGHT:e.expanded||!e.children&&!e.lazy?e.children&&e.children.length&&(i=e.children[0]):(e.setExpanded(),i=e);break;case"up":case r.UP:this.visitRows(function(e){return i=e,!1},{start:e,reverse:!0,includeSelf:!1});break;case"down":case r.DOWN:this.visitRows(function(e){return i=e,!1},{start:e,includeSelf:!1});break;default:this.tree.warn("Unknown relation '"+t+"'.")}return 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setTimeout(function(){o._loadKeyPathImpl(s,c,a,d).done(function(){s.resolve()})},0),s.promise()},_loadKeyPathImpl:function(e,o,t,n){var i,r,s,a,l,d,c,u,h,f,p=this;function g(e,t){var n,i,r=e.children;if(r)for(n=0,i=r.length;n<i;n++)if(o.matchKey(r[n],t))return r[n];return null}for(c={},r=0;r<n.length;r++)for(h=n[r],u=t;h.length;){if(s=h.shift(),!(a=g(u,s))){this.warn("loadKeyPath: key not found: "+s+" (parent: "+u+")"),o.callback(this,s,"error");break}if(0===h.length){o.callback(this,a,"ok");break}if(a.lazy&&void 0===a.hasChildren()){o.callback(this,a,"loaded"),c[s=a.key]?c[s].pathSegList.push(h):c[s]={parent:a,pathSegList:[h]};break}o.callback(this,a,"loaded"),u=a}function y(t,n,e){o.callback(p,n,"loading"),n.load().done(function(){p._loadKeyPathImpl.call(p,t,o,n,e).always(E(t,p))}).fail(function(e){p.warn("loadKeyPath: error loading lazy "+n),o.callback(p,a,"error"),t.rejectWith(p)})}for(l in i=[],c)c.hasOwnProperty(l)&&(d=c[l],f=new C.Deferred,i.push(f),y(f,d.parent,d.pathSegList));return C.when.apply(C,i).promise()},reactivate:function(e){var t,n=this.activeNode;return n?(this.activeNode=null,t=n.setActive(!0,{noFocus:!0}),e&&n.setFocus(),t):N()},reload:function(e){return this._callHook("treeClear",this),this._callHook("treeLoad",this,e)},render:function(e,t){return this.rootNode.render(e,t)},selectAll:function(t){this.visit(function(e){e.setSelected(t)})},setFocus:function(e){return this._callHook("treeSetFocus",this,e)},setOption:function(e,t){return this.widget.option(e,t)},toDict:function(e,t){var n=this.rootNode.toDict(!0,t);return e?n:n.children},toString:function(){return"Fancytree@"+this._id},_triggerNodeEvent:function(e,t,n,i){var r=this._makeHookContext(t,n,i),o=this.widget._trigger(e,n,r);return!1!==o&&void 0!==r.result?r.result:o},_triggerTreeEvent:function(e,t,n){var i=this._makeHookContext(this,t,n),r=this.widget._trigger(e,t,i);return!1!==r&&void 0!==i.result?i.result:r},visit:function(e){return this.rootNode.visit(e,!1)},visitRows:function(t,e){if(!this.rootNode.children)return!1;if(e&&e.reverse)return delete e.reverse,this._visitRowsUp(t,e);var n,i,r,o=0,s=!1===(e=e||{}).includeSelf,a=!!e.includeHidden,l=!a&&this.enableFilter,d=e.start||this.rootNode.children[0];for(i=d.parent;i;){for(n=(r=i.children).indexOf(d)+o;n<r.length;n++)if(d=r[n],!l||d.match||d.subMatchCount){if(!s&&!1===t(d))return!1;if(s=!1,d.children&&d.children.length&&(a||d.expanded)&&!1===d.visit(function(e){return!l||e.match||e.subMatchCount?!1!==t(e)&&(a||!e.children||e.expanded?void 0:"skip"):"skip"},!1))return!1}i=(d=i).parent,o=1}return!0},_visitRowsUp:function(e,t){for(var n,i,r,o=!!t.includeHidden,s=t.start||this.rootNode.children[0];;){if((n=(r=s.parent).children)[0]===s){if(!(s=r).parent)break;n=r.children}else for(i=n.indexOf(s),s=n[i-1];(o||s.expanded)&&s.children&&s.children.length;)s=(n=(r=s).children)[n.length-1];if((o||s.isVisible())&&!1===e(s))return!1}},warn:function(e){2<=this.options.debugLevel&&(Array.prototype.unshift.call(arguments,this.toString()),d("warn",arguments))}},C.extend(D.prototype,{nodeClick:function(e){var t,n,i=e.targetType,r=e.node;if("expander"===i){if(r.isLoading())return void r.debug("Got 2nd click while loading: ignored");this._callHook("nodeToggleExpanded",e)}else if("checkbox"===i)this._callHook("nodeToggleSelected",e),e.options.focusOnSelect&&this._callHook("nodeSetFocus",e,!0);else{if(t=!(n=!1),r.folder)switch(e.options.clickFolderMode){case 2:t=!(n=!0);break;case 3:n=t=!0}t&&(this.nodeSetFocus(e),this._callHook("nodeSetActive",e,!0)),n&&this._callHook("nodeToggleExpanded",e)}},nodeCollapseSiblings:function(e,t){var n,i,r,o=e.node;if(o.parent)for(i=0,r=(n=o.parent.children).length;i<r;i++)n[i]!==o&&n[i].expanded&&this._callHook("nodeSetExpanded",n[i],!1,t)},nodeDblclick:function(e){"title"===e.targetType&&4===e.options.clickFolderMode&&this._callHook("nodeToggleExpanded",e),"title"===e.targetType&&e.originalEvent.preventDefault()},nodeKeydown:function(e){var t,n,i,r=e.originalEvent,o=e.node,s=e.tree,a=e.options,l=r.which,d=r.key||String.fromCharCode(l),c=!!(r.altKey||r.ctrlKey||r.metaKey),u=!m[l]&&!v[l]&&!c,h=C(r.target),f=!0,p=!(r.ctrlKey||!a.autoActivate);if(o||(i=this.getActiveNode()||this.getFirstChild())&&(i.setFocus(),(o=e.node=this.focusNode).debug("Keydown force focus on active node")),a.quicksearch&&u&&!h.is(":input:enabled"))return 500<(n=Date.now())-s.lastQuicksearchTime&&(s.lastQuicksearchTerm=""),s.lastQuicksearchTime=n,s.lastQuicksearchTerm+=d,(t=s.findNextNode(s.lastQuicksearchTerm,s.getActiveNode()))&&t.setActive(),void r.preventDefault();switch(g.eventToString(r)){case"+":case"=":s.nodeSetExpanded(e,!0);break;case"-":s.nodeSetExpanded(e,!1);break;case"space":o.isPagingNode()?s._triggerNodeEvent("clickPaging",e,r):g.evalOption("checkbox",o,o,a,!1)?s.nodeToggleSelected(e):s.nodeSetActive(e,!0);break;case"return":s.nodeSetActive(e,!0);break;case"home":case"end":case"backspace":case"left":case"right":case"up":case"down":o.navigate(r.which,p);break;default:f=!1}f&&r.preventDefault()},nodeLoadChildren:function(o,s){var t,n,e,i,a=o.tree,l=o.node,d=Date.now();return C.isFunction(s)&&(s=s.call(a,{type:"source"},o),w(!C.isFunction(s),"source callback must not return another function")),s.url&&(l._requestId&&l.warn("Recursive load request #"+d+" while #"+l._requestId+" is pending."),t=C.extend({},o.options.ajax,s),l._requestId=d,e=t.debugDelay?(n=t.debugDelay,delete t.debugDelay,C.isArray(n)&&(n=n[0]+Math.random()*(n[1]-n[0])),l.warn("nodeLoadChildren waiting debugDelay "+Math.round(n)+" ms ..."),C.Deferred(function(e){setTimeout(function(){C.ajax(t).done(function(){e.resolveWith(this,arguments)}).fail(function(){e.rejectWith(this,arguments)})},n)})):C.ajax(t),s=new C.Deferred,e.done(function(e,t,n){var i,r;if("json"!==this.dataType&&"jsonp"!==this.dataType||"string"!=typeof e||C.error("Ajax request returned a string (did you get the JSON dataType wrong?)."),l._requestId&&l._requestId>d)s.rejectWith(this,[c]);else{if(o.options.postProcess){try{r=a._triggerNodeEvent("postProcess",o,o.originalEvent,{response:e,error:null,dataType:this.dataType})}catch(e){r={error:e,message:""+e,details:"postProcess failed"}}if(r.error)return i=C.isPlainObject(r.error)?r.error:{message:r.error},i=a._makeHookContext(l,null,i),void s.rejectWith(this,[i]);(C.isArray(r)||C.isPlainObject(r)&&C.isArray(r.children))&&(e=r)}else e&&e.hasOwnProperty("d")&&o.options.enableAspx&&(e="string"==typeof e.d?C.parseJSON(e.d):e.d);s.resolveWith(this,[e])}}).fail(function(e,t,n){var i=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:n,details:e.status+": "+n});s.rejectWith(this,[i])})),C.isFunction(s.then)&&C.isFunction(s.catch)&&(e=s,s=new C.Deferred,e.then(function(e){s.resolve(e)},function(e){s.reject(e)})),C.isFunction(s.promise)?(a.nodeSetStatus(o,"loading"),s.done(function(e){a.nodeSetStatus(o,"ok"),l._requestId=null}).fail(function(e){var t;e!==c?(e.node&&e.error&&e.message?t=e:"[object Object]"===(t=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:e?e.message||e.toString():""})).message&&(t.message=""),l.warn("Load children failed ("+t.message+")",t),!1!==a._triggerNodeEvent("loadError",t,null)&&a.nodeSetStatus(o,"error",t.message,t.details)):l.warn("Ignored response for obsolete load request #"+d+" (expected #"+l._requestId+")")})):o.options.postProcess&&(i=a._triggerNodeEvent("postProcess",o,o.originalEvent,{response:s,error:null,dataType:typeof s}),(C.isArray(i)||C.isPlainObject(i)&&C.isArray(i.children))&&(s=i)),C.when(s).done(function(e){var n,t;C.isPlainObject(e)&&(w(l.isRootNode(),"source may only be an object for root nodes (expecting an array of child objects otherwise)"),w(C.isArray(e.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),e=(n=e).children,delete n.children,C.each(u,function(e,t){void 0!==n[t]&&(a[t]=n[t],delete n[t])}),C.extend(a.data,n)),w(C.isArray(e),"expected array of children"),l._setChildren(e),a.options.nodata&&0===e.length&&(C.isFunction(a.options.nodata)?t=a.options.nodata.call(a,{type:"nodata"},o):!0===a.options.nodata&&l.isRootNode()?t=a.options.strings.nodata:"string"==typeof a.options.nodata&&l.isRootNode()&&(t=a.options.nodata),t&&l.setStatus("nodata",t)),a._triggerNodeEvent("loadChildren",l)})},nodeLoadKeyPath:function(e,t){},nodeRemoveChild:function(e,t){var n,i=e.node,r=C.extend({},e,{node:t}),o=i.children;if(1===o.length)return w(t===o[0],"invalid single child"),this.nodeRemoveChildren(e);this.activeNode&&(t===this.activeNode||this.activeNode.isDescendantOf(t))&&this.activeNode.setActive(!1),this.focusNode&&(t===this.focusNode||this.focusNode.isDescendantOf(t))&&(this.focusNode=null),this.nodeRemoveMarkup(r),this.nodeRemoveChildren(r),w(0<=(n=C.inArray(t,o)),"invalid child"),i.triggerModifyChild("remove",t),t.visit(function(e){e.parent=null},!0),this._callHook("treeRegisterNode",this,!1,t),o.splice(n,1)},nodeRemoveChildMarkup:function(e){var t=e.node;t.ul&&(t.isRootNode()?C(t.ul).empty():(C(t.ul).remove(),t.ul=null),t.visit(function(e){e.li=e.ul=null}))},nodeRemoveChildren:function(e){var t=e.tree,n=e.node;n.children&&(this.activeNode&&this.activeNode.isDescendantOf(n)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(n)&&(this.focusNode=null),this.nodeRemoveChildMarkup(e),n.triggerModifyChild("remove",null),n.visit(function(e){e.parent=null,t._callHook("treeRegisterNode",t,!1,e)}),n.lazy?n.children=[]:n.children=null,n.isRootNode()||(n.expanded=!1),this.nodeRenderStatus(e))},nodeRemoveMarkup:function(e){var t=e.node;t.li&&(C(t.li).remove(),t.li=null),this.nodeRemoveChildMarkup(e)},nodeRender:function(e,t,n,i,r){var o,s,a,l,d,c,u,h=e.node,f=e.tree,p=e.options,g=p.aria,y=!1,v=h.parent,m=!v,b=h.children,x=null;if(!1!==f._enableUpdate&&(m||v.ul)){if(w(m||v.ul,"parent UL must exist"),m||(h.li&&(t||h.li.parentNode!==h.parent.ul)&&(h.li.parentNode===h.parent.ul?x=h.li.nextSibling:this.debug("Unlinking "+h+" (must be child of "+h.parent+")"),this.nodeRemoveMarkup(e)),h.li?this.nodeRenderStatus(e):(y=!0,h.li=document.createElement("li"),(h.li.ftnode=h).key&&p.generateIds&&(h.li.id=p.idPrefix+h.key),h.span=document.createElement("span"),h.span.className="fancytree-node",g&&!h.tr&&C(h.li).attr("role","treeitem"),h.li.appendChild(h.span),this.nodeRenderTitle(e),p.createNode&&p.createNode.call(f,{type:"createNode"},e)),p.renderNode&&p.renderNode.call(f,{type:"renderNode"},e)),b){if(m||h.expanded||!0===n){for(h.ul||(h.ul=document.createElement("ul"),(!0!==i||r)&&h.expanded||(h.ul.style.display="none"),g&&C(h.ul).attr("role","group"),h.li?h.li.appendChild(h.ul):h.tree.$div.append(h.ul)),l=0,d=b.length;l<d;l++)u=C.extend({},e,{node:b[l]}),this.nodeRender(u,t,n,!1,!0);for(o=h.ul.firstChild;o;)o=(a=o.ftnode)&&a.parent!==h?(h.debug("_fixParent: remove missing "+a,o),c=o.nextSibling,o.parentNode.removeChild(o),c):o.nextSibling;for(o=h.ul.firstChild,l=0,d=b.length-1;l<d;l++)(s=b[l])===(a=o.ftnode)?o=o.nextSibling:h.ul.insertBefore(s.li,a.li)}}else h.ul&&(this.warn("remove child markup for "+h),this.nodeRemoveChildMarkup(e));m||y&&v.ul.insertBefore(h.li,x)}},nodeRenderTitle:function(e,t){var n,i,r,o,s,a,l,d=e.node,c=e.tree,u=e.options,h=u.aria,f=d.getLevel(),p=[];void 0!==t&&(d.title=t),d.span&&!1!==c._enableUpdate&&(s=h&&!1!==d.hasChildren()?" role='button'":"",f<u.minExpandLevel?(d.lazy||(d.expanded=!0),1<f&&p.push("<span "+s+" class='fancytree-expander fancytree-expander-fixed'></span>")):p.push("<span "+s+" class='fancytree-expander'></span>"),(n=g.evalOption("checkbox",d,d,u,!1))&&!d.isStatusNode()&&(s=h?" role='checkbox'":"",i="fancytree-checkbox",("radio"===n||d.parent&&d.parent.radiogroup)&&(i+=" fancytree-radio"),p.push("<span "+s+" class='"+i+"'></span>")),void 0!==d.data.iconClass&&(d.icon?C.error("'iconClass' node option is deprecated since v2.14.0: use 'icon' only instead"):(d.warn("'iconClass' node option is deprecated since v2.14.0: use 'icon' instead"),d.icon=d.data.iconClass)),!1!==(r=g.evalOption("icon",d,d,u,!0))&&(s=h?" role='presentation'":"",l=(l=g.evalOption("iconTooltip",d,d,u,null))?" title='"+T(l)+"'":"","string"==typeof r?y.test(r)?(r="/"===r.charAt(0)?r:(u.imagePath||"")+r,p.push("<img src='"+r+"' class='fancytree-icon'"+l+" alt='' />")):p.push("<span "+s+" class='fancytree-custom-icon "+r+"'"+l+"></span>"):r.text?p.push("<span "+s+" class='fancytree-custom-icon "+(r.addClass||"")+"'"+l+">"+g.escapeHtml(r.text)+"</span>"):r.html?p.push("<span "+s+" class='fancytree-custom-icon "+(r.addClass||"")+"'"+l+">"+r.html+"</span>"):p.push("<span "+s+" class='fancytree-icon'"+l+"></span>")),o="",u.renderTitle&&(o=u.renderTitle.call(c,{type:"renderTitle"},e)||""),o||(!0===(a=g.evalOption("tooltip",d,d,u,null))&&(a=d.title),o="<span class='fancytree-title'"+(a=a?" title='"+T(a)+"'":"")+(u.titlesTabbable?" tabindex='0'":"")+">"+(u.escapeTitles?g.escapeHtml(d.title):d.title)+"</span>"),p.push(o),d.span.innerHTML=p.join(""),this.nodeRenderStatus(e),u.enhanceTitle&&(e.$title=C(">span.fancytree-title",d.span),o=u.enhanceTitle.call(c,{type:"enhanceTitle"},e)||""))},nodeRenderStatus:function(e){var t,n=e.node,i=e.tree,r=e.options,o=n.hasChildren(),s=n.isLastSibling(),a=r.aria,l=r._classNames,d=[],c=n[i.statusClassPropName];c&&!1!==i._enableUpdate&&(a&&(t=C(n.tr||n.li)),d.push(l.node),i.activeNode===n&&d.push(l.active),i.focusNode===n&&d.push(l.focused),n.expanded&&d.push(l.expanded),a&&(!1===o?t.removeAttr("aria-expanded"):t.attr("aria-expanded",Boolean(n.expanded))),n.folder&&d.push(l.folder),!1!==o&&d.push(l.hasChildren),s&&d.push(l.lastsib),n.lazy&&null==n.children&&d.push(l.lazy),n.partload&&d.push(l.partload),n.partsel&&d.push(l.partsel),g.evalOption("unselectable",n,n,r,!1)&&d.push(l.unselectable),n._isLoading&&d.push(l.loading),n._error&&d.push(l.error),n.statusNodeType&&d.push(l.statusNodePrefix+n.statusNodeType),n.selected?(d.push(l.selected),a&&t.attr("aria-selected",!0)):a&&t.attr("aria-selected",!1),n.extraClasses&&d.push(n.extraClasses),!1===o?d.push(l.combinedExpanderPrefix+"n"+(s?"l":"")):d.push(l.combinedExpanderPrefix+(n.expanded?"e":"c")+(n.lazy&&null==n.children?"d":"")+(s?"l":"")),d.push(l.combinedIconPrefix+(n.expanded?"e":"c")+(n.folder?"f":"")),c.className=d.join(" "),n.li&&C(n.li).toggleClass(l.lastsib,s))},nodeSetActive:function(e,t,n){n=n||{};var i,r=e.node,o=e.tree,s=e.options,a=!0===n.noEvents,l=!0===n.noFocus,d=!1!==n.scrollIntoView;return r===o.activeNode===(t=!1!==t)?N(r):t&&!a&&!1===this._triggerNodeEvent("beforeActivate",r,e.originalEvent)?S(r,["rejected"]):(t?(o.activeNode&&(w(o.activeNode!==r,"node was active (inconsistency)"),i=C.extend({},e,{node:o.activeNode}),o.nodeSetActive(i,!1),w(null===o.activeNode,"deactivate was out of sync?")),s.activeVisible&&r.makeVisible({scrollIntoView:d}),o.activeNode=r,o.nodeRenderStatus(e),l||o.nodeSetFocus(e),a||o._triggerNodeEvent("activate",r,e.originalEvent)):(w(o.activeNode===r,"node was not active (inconsistency)"),o.activeNode=null,this.nodeRenderStatus(e),a||e.tree._triggerNodeEvent("deactivate",r,e.originalEvent)),N(r))},nodeSetExpanded:function(i,r,e){e=e||{};var t,n,o,s,a,l,d=i.node,c=i.tree,u=i.options,h=!0===e.noAnimation,f=!0===e.noEvents;if(r=!1!==r,d.expanded&&r||!d.expanded&&!r)return N(d);if(r&&!d.lazy&&!d.hasChildren())return N(d);if(!r&&d.getLevel()<u.minExpandLevel)return S(d,["locked"]);if(!f&&!1===this._triggerNodeEvent("beforeExpand",d,i.originalEvent))return S(d,["rejected"]);if(h||d.isVisible()||(h=e.noAnimation=!0),n=new C.Deferred,r&&!d.expanded&&u.autoCollapse){a=d.getParentList(!1,!0),l=u.autoCollapse;try{for(u.autoCollapse=!1,o=0,s=a.length;o<s;o++)this._callHook("nodeCollapseSiblings",a[o],e)}finally{u.autoCollapse=l}}return n.done(function(){var e=d.getLastChild();r&&u.autoScroll&&!h&&e?e.scrollIntoView(!0,{topNode:d}).always(function(){f||i.tree._triggerNodeEvent(r?"expand":"collapse",i)}):f||i.tree._triggerNodeEvent(r?"expand":"collapse",i)}),t=function(e){var t=u._classNames,n=u.toggleEffect;if(d.expanded=r,c._callHook("treeStructureChanged",i,r?"expand":"collapse"),c._callHook("nodeRender",i,!1,!1,!0),d.ul)if("none"!==d.ul.style.display===!!d.expanded)d.warn("nodeSetExpanded: UL.style.display already set");else{if(n&&!h)return C(d.li).addClass(t.animating),void(C.isFunction(C(d.ul)[n.effect])?(c.debug("use jquery."+n.effect+" method"),C(d.ul)[n.effect]({duration:n.duration,always:function(){C(this).removeClass(t.animating),C(d.li).removeClass(t.animating),e()}})):(C(d.ul).stop(!0,!0),C(d.ul).parent().find(".ui-effects-placeholder").remove(),C(d.ul).toggle(n.effect,n.options,n.duration,function(){C(this).removeClass(t.animating),C(d.li).removeClass(t.animating),e()})));d.ul.style.display=d.expanded||!parent?"":"none"}e()},r&&d.lazy&&void 0===d.hasChildren()?d.load().done(function(){n.notifyWith&&n.notifyWith(d,["loaded"]),t(function(){n.resolveWith(d)})}).fail(function(e){t(function(){n.rejectWith(d,["load failed ("+e+")"])})}):t(function(){n.resolveWith(d)}),n.promise()},nodeSetFocus:function(e,t){var n,i=e.tree,r=e.node,o=i.options,s=!!e.originalEvent&&C(e.originalEvent.target).is(":input");if(t=!1!==t,i.focusNode){if(i.focusNode===r&&t)return;n=C.extend({},e,{node:i.focusNode}),i.focusNode=null,this._triggerNodeEvent("blur",n),this._callHook("nodeRenderStatus",n)}t&&(this.hasFocus()||(r.debug("nodeSetFocus: forcing container focus"),this._callHook("treeSetFocus",e,!0,{calledByNode:!0})),r.makeVisible({scrollIntoView:!1}),i.focusNode=r,o.titlesTabbable&&(s||C(r.span).find(".fancytree-title").focus()),o.aria&&C(i.$container).attr("aria-activedescendant",C(r.tr||r.li).uniqueId().attr("id")),this._triggerNodeEvent("focus",e),document.activeElement===i.$container.get(0)||1<=C(document.activeElement,i.$container).length||C(i.$container).focus(),o.autoScroll&&r.scrollIntoView(),this._callHook("nodeRenderStatus",e))},nodeSetSelected:function(e,t,n){n=n||{};var i=e.node,r=e.tree,o=e.options,s=!0===n.noEvents,a=i.parent;if(t=!1!==t,!g.evalOption("unselectable",i,i,o,!1)){if(i._lastSelectIntent=t,!!i.selected===t&&(3!==o.selectMode||!i.partsel||t))return t;if(!s&&!1===this._triggerNodeEvent("beforeSelect",i,e.originalEvent))return!!i.selected;t&&1===o.selectMode?(r.lastSelectedNode&&r.lastSelectedNode.setSelected(!1),i.selected=t):3!==o.selectMode||!a||a.radiogroup||i.radiogroup?a&&a.radiogroup?i.visitSiblings(function(e){e._changeSelectStatusAttrs(t&&e===i)},!0):i.selected=t:(i.selected=t,i.fixSelection3AfterClick(n)),this.nodeRenderStatus(e),r.lastSelectedNode=t?i:null,s||r._triggerNodeEvent("select",e)}},nodeSetStatus:function(i,e,t,n){var r=i.node,o=i.tree;function s(e,t){var n=r.children?r.children[0]:null;return n&&n.isStatusNode()?(C.extend(n,e),n.statusNodeType=t,o._callHook("nodeRenderTitle",n)):(r._setChildren([e]),o._callHook("treeStructureChanged",i,"setStatusNode"),r.children[0].statusNodeType=t,o.render()),r.children[0]}switch(e){case"ok":!function(){var e=r.children?r.children[0]:null;if(e&&e.isStatusNode()){try{r.ul&&(r.ul.removeChild(e.li),e.li=null)}catch(e){}1===r.children.length?r.children=[]:r.children.shift(),o._callHook("treeStructureChanged",i,"clearStatusNode")}}(),r._isLoading=!1,r._error=null,r.renderStatus();break;case"loading":r.parent||s({title:o.options.strings.loading+(t?" ("+t+")":""),checkbox:!1,tooltip:n},e),r._isLoading=!0,r._error=null,r.renderStatus();break;case"error":s({title:o.options.strings.loadError+(t?" ("+t+")":""),checkbox:!1,tooltip:n},e),r._isLoading=!1,r._error={message:t,details:n},r.renderStatus();break;case"nodata":s({title:t||o.options.strings.noData,checkbox:!1,tooltip:n},e),r._isLoading=!1,r._error=null,r.renderStatus();break;default:C.error("invalid node status "+e)}},nodeToggleExpanded:function(e){return this.nodeSetExpanded(e,!e.node.expanded)},nodeToggleSelected:function(e){var t=e.node,n=!t.selected;return t.partsel&&!t.selected&&!0===t._lastSelectIntent&&(n=!1,t.selected=!0),t._lastSelectIntent=n,this.nodeSetSelected(e,n)},treeClear:function(e){var t=e.tree;t.activeNode=null,t.focusNode=null,t.$div.find(">ul.fancytree-container").empty(),t.rootNode.children=null,t._callHook("treeStructureChanged",e,"clear")},treeCreate:function(e){},treeDestroy:function(e){this.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("fancytree-helper-hidden")},treeInit:function(e){var n=e.tree,i=n.options;n.$container.attr("tabindex",i.tabindex),C.each(u,function(e,t){void 0!==i[t]&&(n.info("Move option "+t+" to tree"),n[t]=i[t],delete i[t])}),i.checkboxAutoHide&&n.$container.addClass("fancytree-checkbox-auto-hide"),i.rtl?n.$container.attr("DIR","RTL").addClass("fancytree-rtl"):n.$container.removeAttr("DIR").removeClass("fancytree-rtl"),i.aria&&(n.$container.attr("role","tree"),1!==i.selectMode&&n.$container.attr("aria-multiselectable",!0)),this.treeLoad(e)},treeLoad:function(e,t){var n,i,r,o=e.tree,s=e.widget.element,a=C.extend({},e,{node:this.rootNode});if(o.rootNode.children&&this.treeClear(e),t=t||this.options.source)"string"==typeof t&&C.error("Not implemented");else switch(i=s.data("type")||"html"){case"html":(r=s.find(">ul").first()).addClass("ui-fancytree-source fancytree-helper-hidden"),t=C.ui.fancytree.parseHtml(r),this.data=C.extend(this.data,A(r));break;case"json":t=C.parseJSON(s.text()),s.contents().filter(function(){return 3===this.nodeType}).remove(),C.isPlainObject(t)&&(w(C.isArray(t.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),t=(n=t).children,delete n.children,C.each(u,function(e,t){void 0!==n[t]&&(o[t]=n[t],delete n[t])}),C.extend(o.data,n));break;default:C.error("Invalid data-type: "+i)}return this.nodeLoadChildren(a,t).done(function(){o._callHook("treeStructureChanged",e,"loadChildren"),o.render(),3===e.options.selectMode&&o.rootNode.fixSelection3FromEndNodes(),o.activeNode&&o.options.activeVisible&&o.activeNode.makeVisible(),o._triggerTreeEvent("init",null,{status:!0})}).fail(function(){o.render(),o._triggerTreeEvent("init",null,{status:!1})})},treeRegisterNode:function(e,t,n){e.tree._callHook("treeStructureChanged",e,t?"addNode":"removeNode")},treeSetFocus:function(e,t,n){var i;(t=!1!==t)!==this.hasFocus()&&(!(this._hasFocus=t)&&this.focusNode?this.focusNode.setFocus(!1):!t||n&&n.calledByNode||C(this.$container).focus(),this.$container.toggleClass("fancytree-treefocus",t),this._triggerTreeEvent(t?"focusTree":"blurTree"),t&&!this.activeNode&&(i=this._lastMousedownNode||this.getFirstChild())&&i.setFocus())},treeSetOption:function(e,t,n){var i=e.tree,r=!0,o=!1,s=!1;switch(t){case"aria":case"checkbox":case"icon":case"minExpandLevel":case"tabindex":s=o=!0;break;case"checkboxAutoHide":i.$container.toggleClass("fancytree-checkbox-auto-hide",!!n);break;case"escapeTitles":case"tooltip":s=!0;break;case"rtl":!1===n?i.$container.removeAttr("DIR").removeClass("fancytree-rtl"):i.$container.attr("DIR","RTL").addClass("fancytree-rtl"),s=!0;break;case"source":r=!1,i._callHook("treeLoad",i,n),s=!0}i.debug("set option "+t+"="+n+" <"+typeof n+">"),r&&(this.widget._super?this.widget._super.call(this.widget,t,n):C.Widget.prototype._setOption.call(this.widget,t,n)),o&&i._callHook("treeCreate",i),s&&i.render(!0,!1)},treeStructureChanged:function(e,t){}}),C.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!0,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,escapeTitles:!1,extensions:[],toggleEffect:{effect:"slideToggle",duration:200},generateIds:!1,icon:!0,idPrefix:"ft_",focusOnSelect:!1,keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,nodata:!0,quicksearch:!1,rtl:!1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading...",loadError:"Load error!",moreData:"More...",noData:"No data."},tabindex:"0",titlesTabbable:!1,tooltip:!1,treeId:null,_classNames:{node:"fancytree-node",folder:"fancytree-folder",animating:"fancytree-animating",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partload:"fancytree-partload",partsel:"fancytree-partsel",radio:"fancytree-radio",unselectable:"fancytree-unselectable",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error",statusNodePrefix:"fancytree-statusnode-"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new D(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul").first();var e,t,n,i=this.options,r=i.extensions;this.tree;for(n=0;n<r.length;n++)t=r[n],(e=C.ui.fancytree._extensions[t])||C.error("Could not apply extension '"+t+"' (it is not registered, did you forget to include it?)"),this.tree.options[t]=h({},e.options,this.tree.options[t]),w(void 0===this.tree.ext[t],"Extension name must not exist as Fancytree.ext attribute: '"+t+"'"),this.tree.ext[t]={},p(this.tree,0,e,t),e;void 0!==i.icons&&(!0===i.icon?(this.tree.warn("'icons' tree option is deprecated since v2.14.0: use 'icon' instead"),i.icon=i.icons):C.error("'icons' tree option is deprecated since v2.14.0: use 'icon' only instead")),void 0!==i.iconClass&&(i.icon?C.error("'iconClass' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'iconClass' tree option is deprecated since v2.14.0: use 'icon' instead"),i.icon=i.iconClass)),void 0!==i.tabbable&&(i.tabindex=i.tabbable?"0":"-1",this.tree.warn("'tabbable' tree option is deprecated since v2.17.0: use 'tabindex='"+i.tabindex+"' instead")),this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(e,t){return this.tree._callHook("treeSetOption",this.tree,e,t)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),C.Widget.prototype.destroy.call(this)},_unbind:function(){var e=this.tree._ns;this.element.off(e),this.tree.$container.off(e),C(document).off(e)},_bind:function(){var s=this,a=this.options,o=this.tree,e=o._ns;this._unbind(),o.$container.on("focusin"+e+" focusout"+e,function(e){var t=g.getNode(e),n="focusin"===e.type;if(!n&&t&&C(e.target).is("a"))t.debug("Ignored focusout on embedded <a> element.");else{if(n){if(o._getExpiringValue("focusin"))return void o.debug("Ignored double focusin.");o._setExpiringValue("focusin",!0,50),t||(t=o._getExpiringValue("mouseDownNode"))&&o.debug("Reconstruct mouse target for focusin from recent event.")}t?o._callHook("nodeSetFocus",o._makeHookContext(t,e),n):o.tbody&&C(e.target).parents("table.fancytree-container > thead").length?o.debug("Ignore focus event outside table body.",e):o._callHook("treeSetFocus",o,n)}}).on("selectstart"+e,"span.fancytree-title",function(e){e.preventDefault()}).on("keydown"+e,function(e){if(a.disabled||!1===a.keyboard)return!0;var t,n=o.focusNode,i=o._makeHookContext(n||o,e),r=o.phase;try{return o.phase="userEvent","preventNav"===(t=n?o._triggerNodeEvent("keydown",n,e):o._triggerTreeEvent("keydown",e))?t=!0:!1!==t&&(t=o._callHook("nodeKeydown",i)),t}finally{o.phase=r}}).on("mousedown"+e,function(e){var t=g.getEventTarget(e);o._lastMousedownNode=t?t.node:null,o._setExpiringValue("mouseDownNode",o._lastMousedownNode)}).on("click"+e+" dblclick"+e,function(e){if(a.disabled)return!0;var t,n=g.getEventTarget(e),i=n.node,r=s.tree,o=r.phase;if(!i)return!0;t=r._makeHookContext(i,e);try{switch(r.phase="userEvent",e.type){case"click":return t.targetType=n.type,i.isPagingNode()?!0===r._triggerNodeEvent("clickPaging",t,e):!1!==r._triggerNodeEvent("click",t,e)&&r._callHook("nodeClick",t);case"dblclick":return t.targetType=n.type,!1!==r._triggerNodeEvent("dblclick",t,e)&&r._callHook("nodeDblclick",t)}}finally{r.phase=o}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(e){return this.tree.getNodeByKey(e)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),g=C.ui.fancytree,C.extend(C.ui.fancytree,{version:"2.31.0",buildType: "production",debugLevel: 3,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:D,_FancytreeNodeClass:F,jquerySupports:{positionMyOfs:function(e,t,n,i){var r,o,s,a=C.map(C.trim(e).split("."),function(e){return parseInt(e,10)}),l=C.map(Array.prototype.slice.call(arguments,1),function(e){return parseInt(e,10)});for(r=0;r<l.length;r++)if((o=a[r]||0)!==(s=l[r]||0))return s<o;return!0}(C.ui.version,1,9)},assert:function(e,t){return w(e,t)},createTree:function(e,t){return C(e).fancytree(t).fancytree("getTree")},debounce:function(t,n,i,r){var o;return 3===arguments.length&&"boolean"!=typeof i&&(r=i,i=!1),function(){var e=arguments;r=r||this,i&&!o&&n.apply(r,e),clearTimeout(o),o=setTimeout(function(){i||n.apply(r,e),o=null},t)}},debug:function(e){4<=C.ui.fancytree.debugLevel&&d("log",arguments)},error:function(e){1<=C.ui.fancytree.debugLevel&&d("error",arguments)},escapeHtml:function(e){return(""+e).replace(t,function(e){return i[e]})},fixPositionOptions:function(e){if((e.offset||0<=(""+e.my+e.at).indexOf("%"))&&C.error("expected new position syntax (but '%' is not supported)"),!C.ui.fancytree.jquerySupports.positionMyOfs){var t=/(\w+)([+-]?\d+)?\s+(\w+)([+-]?\d+)?/.exec(e.my),n=/(\w+)([+-]?\d+)?\s+(\w+)([+-]?\d+)?/.exec(e.at),i=(t[2]?+t[2]:0)+(n[2]?+n[2]:0),r=(t[4]?+t[4]:0)+(n[4]?+n[4]:0);e=C.extend({},e,{my:t[1]+" "+t[3],at:n[1]+" "+n[3]}),(i||r)&&(e.offset=i+" "+r)}return e},getEventTarget:function(e){var t,n=e&&e.target?e.target.className:"",i={node:this.getNode(e.target),type:void 0};return/\bfancytree-title\b/.test(n)?i.type="title":/\bfancytree-expander\b/.test(n)?i.type=!1===i.node.hasChildren()?"prefix":"expander":/\bfancytree-checkbox\b/.test(n)?i.type="checkbox":/\bfancytree(-custom)?-icon\b/.test(n)?i.type="icon":/\bfancytree-node\b/.test(n)?i.type="title":e&&e.target&&((t=C(e.target)).is("ul[role=group]")?((i.node&&i.node.tree||g).debug("Ignoring click on outer UL."),i.node=null):t.closest(".fancytree-title").length?i.type="title":t.closest(".fancytree-checkbox").length?i.type="checkbox":t.closest(".fancytree-expander").length&&(i.type="expander")),i},getEventTargetType:function(e){return this.getEventTarget(e).type},getNode:function(e){if(e instanceof F)return e;for(e instanceof C?e=e[0]:void 0!==e.originalEvent&&(e=e.target);e;){if(e.ftnode)return e.ftnode;e=e.parentNode}return null},getTree:function(e){var t,n=e;return e instanceof D?e:(void 0===e&&(e=0),"number"==typeof 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e.altKey&&i.push("alt"),e.ctrlKey&&i.push("ctrl"),e.metaKey&&i.push("meta"),e.shiftKey&&i.push("shift"),"click"===n||"dblclick"===n?i.push(s[e.button]+n):"wheel"===n?i.push(n):r[t]||i.push(v[t]||String.fromCharCode(t).toLowerCase()),i.join("+")},info:function(e){3<=C.ui.fancytree.debugLevel&&d("info",arguments)},keyEventToString:function(e){return this.warn("keyEventToString() is deprecated: use eventToString()"),this.eventToString(e)},overrideMethod:function(e,t,n,i){var r,o=e[t]||C.noop;e[t]=function(){var e=i||this;try{return r=e._super,e._super=o,n.apply(e,arguments)}finally{e._super=r}}},parseHtml:function(s){var a,l,d,c,u,h,f,p,e=s.find(">li"),g=[];return e.each(function(){var e,t,n=C(this),i=n.find(">span",this).first(),r=i.length?null:n.find(">a").first(),o={tooltip:null,data:{}};for(i.length?o.title=i.html():r&&r.length?(o.title=r.html(),o.data.href=r.attr("href"),o.data.target=r.attr("target"),o.tooltip=r.attr("title")):(o.title=n.html(),0<=(u=o.title.search(/<ul/i))&&(o.title=o.title.substring(0,u))),o.title=C.trim(o.title),c=0,h=b.length;c<h;c++)o[b[c]]=void 0;for(a=this.className.split(" "),d=[],c=0,h=a.length;c<h;c++)l=a[c],x[l]?o[l]=!0:d.push(l);if(o.extraClasses=d.join(" "),(f=n.attr("title"))&&(o.tooltip=f),(f=n.attr("id"))&&(o.key=f),n.attr("hideCheckbox")&&(o.checkbox=!1),(e=A(n))&&!C.isEmptyObject(e)){for(t in k)e.hasOwnProperty(t)&&(e[k[t]]=e[t],delete e[t]);for(c=0,h=_.length;c<h;c++)f=_[c],null!=(p=e[f])&&(delete e[f],o[f]=p);C.extend(o.data,e)}(s=n.find(">ul").first()).length?o.children=C.ui.fancytree.parseHtml(s):o.children=o.lazy?void 0:null,g.push(o)}),g},registerExtension:function(e){w(null!=e.name,"extensions must have a `name` 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Use 'loadError' (with uppercase E) instead."),void 0!==this.options.fx&&C.error("The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."),void 0!==this.options.removeNode&&C.error("The 'removeNode' event was replaced by 'modifyChild' since 2.20 (2016-09-10).")),this.ext={},this.types={},this.columns={},this.data=A(this.$div),this._id=""+(this.options.treeId||C.ui.fancytree._nextId++),this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this._tempCache={},this._lastMousedownNode=null,this._enableUpdate=!0,this.lastSelectedNode=null,this.systemFocusElement=null,this.lastQuicksearchTerm="",this.lastQuicksearchTime=0,this.viewport=null,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var t,n={tree:this};this.rootNode=new F(n,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,t=C("<ul>",{id:"ft-id-"+this._id,class:"ui-fancytree fancytree-container fancytree-plain"}).appendTo(this.$div),this.$container=t,this.rootNode.ul=t[0],null==this.options.debugLevel&&(this.options.debugLevel=g.debugLevel)}C.ui.fancytree.warn("Fancytree: ignored duplicate include")},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree.ui-deps"],t):"object"==typeof module&&module.exports?(require("./jquery.fancytree.ui-deps"),module.exports=t(require("jquery"))):t(jQuery),n=function(o){"use strict";return o.ui.fancytree._FancytreeClass.prototype.countSelected=function(e){this.options;return this.getSelectedNodes(e).length},o.ui.fancytree._FancytreeNodeClass.prototype.updateCounters=function(){var e=this,t=o("span.fancytree-childcounter",e.span),n=e.tree.options.childcounter,i=e.countChildren(n.deep);!(e.data.childCounter=i)&&n.hideZeros||e.isExpanded()&&n.hideExpanded?t.remove():(t.length||(t=o("<span class='fancytree-childcounter'/>").appendTo(o("span.fancytree-icon,span.fancytree-custom-icon",e.span))),t.text(i)),!n.deep||e.isTopLevel()||e.isRoot()||e.parent.updateCounters()},o.ui.fancytree.prototype.widgetMethod1=function(e){this.tree;return e},o.ui.fancytree.registerExtension({name:"childcounter",version:"2.31.0",options:{deep:!0,hideZeros:!0,hideExpanded:!1},foo:42,_appendCounter:function(e){},treeInit:function(e){e.options,e.options.childcounter;this._superApply(arguments),this.$container.addClass("fancytree-ext-childcounter")},treeDestroy:function(e){this._superApply(arguments)},nodeRenderTitle:function(e,t){var n=e.node,i=e.options.childcounter,r=null==n.data.childCounter?n.countChildren(i.deep):+n.data.childCounter;this._super(e,t),!r&&i.hideZeros||n.isExpanded()&&i.hideExpanded||o("span.fancytree-icon,span.fancytree-custom-icon",n.span).append(o("<span class='fancytree-childcounter'/>").text(r))},nodeSetExpanded:function(e,t,n){var i=e.tree;e.node;return this._superApply(arguments).always(function(){i.nodeRenderTitle(e)})}}),o.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],n):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=n(require("jquery"))):n(jQuery),i=function(h){"use strict";function f(e,t){e||(t=t?": "+t:"",h.error("Assertion failed"+t))}function r(e,t,n){for(var i,r,o=3&e.length,s=e.length-o,a=n,l=3432918353,d=461845907,c=0;c<s;)r=255&e.charCodeAt(c)|(255&e.charCodeAt(++c))<<8|(255&e.charCodeAt(++c))<<16|(255&e.charCodeAt(++c))<<24,++c,a=27492+(65535&(i=5*(65535&(a=(a^=r=(65535&(r=(r=(65535&r)*l+(((r>>>16)*l&65535)<<16)&4294967295)<<15|r>>>17))*d+(((r>>>16)*d&65535)<<16)&4294967295)<<13|a>>>19))+((5*(a>>>16)&65535)<<16)&4294967295))+((58964+(i>>>16)&65535)<<16);switch(r=0,o){case 3:r^=(255&e.charCodeAt(c+2))<<16;case 2:r^=(255&e.charCodeAt(c+1))<<8;case 1:a^=r=(65535&(r=(r=(65535&(r^=255&e.charCodeAt(c)))*l+(((r>>>16)*l&65535)<<16)&4294967295)<<15|r>>>17))*d+(((r>>>16)*d&65535)<<16)&4294967295}return a^=e.length,a=2246822507*(65535&(a^=a>>>16))+((2246822507*(a>>>16)&65535)<<16)&4294967295,a=3266489909*(65535&(a^=a>>>13))+((3266489909*(a>>>16)&65535)<<16)&4294967295,a^=a>>>16,t?("0000000"+(a>>>0).toString(16)).substr(-8):a>>>0}return h.ui.fancytree._FancytreeNodeClass.prototype.getCloneList=function(e){var t,n=this.tree,i=n.refMap[this.refKey]||null,r=n.keyMap;return i&&(t=this.key,e?i=h.map(i,function(e){return r[e]}):(i=h.map(i,function(e){return e===t?null:r[e]})).length<1&&(i=null)),i},h.ui.fancytree._FancytreeNodeClass.prototype.isClone=function(){var e=this.refKey||null,t=e&&this.tree.refMap[e]||null;return!!(t&&1<t.length)},h.ui.fancytree._FancytreeNodeClass.prototype.reRegister=function(t,e){t=null==t?null:""+t,e=null==e?null:""+e;var n=this.tree,i=this.key,r=this.refKey,o=n.keyMap,s=n.refMap,a=s[r]||null,l=!1;return null!=t&&t!==this.key&&(o[t]&&h.error("[ext-clones] reRegister("+t+"): already exists: "+this),delete o[i],o[t]=this,a&&(s[r]=h.map(a,function(e){return e===i?t:e})),this.key=t,l=!0),null!=e&&e!==this.refKey&&(a&&(1===a.length?delete s[r]:s[r]=h.map(a,function(e){return e===i?null:e})),s[e]?s[e].append(t):s[e]=[this.key],this.refKey=e,l=!0),l},h.ui.fancytree._FancytreeNodeClass.prototype.setRefKey=function(e){return this.reRegister(null,e)},h.ui.fancytree._FancytreeClass.prototype.getNodesByRef=function(e,n){var i=this.keyMap,t=this.refMap[e]||null;return t&&(t=n?h.map(t,function(e){var t=i[e];return t.isDescendantOf(n)?t:null}):h.map(t,function(e){return i[e]})).length<1&&(t=null),t},h.ui.fancytree._FancytreeClass.prototype.changeRefKey=function(e,t){var n,i=this.keyMap,r=this.refMap[e]||null;if(r){for(n=0;n<r.length;n++)i[r[n]].refKey=t;delete this.refMap[e],this.refMap[t]=r}},h.ui.fancytree.registerExtension({name:"clones",version:"2.31.0",options:{highlightActiveClones:!0,highlightClones:!1},treeCreate:function(e){this._superApply(arguments),e.tree.refMap={},e.tree.keyMap={}},treeInit:function(e){this.$container.addClass("fancytree-ext-clones"),f(null==e.options.defaultKey),e.options.defaultKey=function(e){return t=e,i=h.map(t.getParentList(!1,!0),function(e){return e.refKey||e.key}),"id_"+(n=r(i=i.join("/"),!0))+r(n+i,!0);var t,n,i},this._superApply(arguments)},treeClear:function(e){return e.tree.refMap={},e.tree.keyMap={},this._superApply(arguments)},treeRegisterNode:function(e,t,n){var i,r,o=e.tree,s=o.keyMap,a=o.refMap,l=n.key,d=n&&null!=n.refKey?""+n.refKey:null;if(n.isStatusNode())return this._super(e,t,n);if(t){if(null!=s[n.key]){var c=s[n.key],u="clones.treeRegisterNode: duplicate key '"+n.key+"': /"+n.getPath(!0)+" => "+c.getPath(!0);o.error(u),h.error(u)}s[l]=n,d&&((i=a[d])?(i.push(l),2===i.length&&e.options.clones.highlightClones&&s[i[0]].renderStatus()):a[d]=[l])}else null==s[l]&&h.error("clones.treeRegisterNode: node.key not registered: "+n.key),delete s[l],d&&(i=a[d])&&((r=i.length)<=1?(f(1===r),f(i[0]===l),delete a[d]):(!function(e,t){var n;for(n=e.length-1;0<=n;n--)if(e[n]===t)return e.splice(n,1)}(i,l),2===r&&e.options.clones.highlightClones&&s[i[0]].renderStatus()));return this._super(e,t,n)},nodeRenderStatus:function(e){var t,n,i=e.node;return n=this._super(e),e.options.clones.highlightClones&&(t=h(i[e.tree.statusClassPropName])).length&&i.isClone()&&t.addClass("fancytree-clone"),n},nodeSetActive:function(e,n,t){var i,r=e.tree.statusClassPropName,o=e.node;return i=this._superApply(arguments),e.options.clones.highlightActiveClones&&o.isClone()&&h.each(o.getCloneList(!0),function(e,t){h(t[r]).toggleClass("fancytree-active-clone",!1!==n)}),i}}),h.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],i):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=i(require("jquery"))):i(jQuery),r=function(w){"use strict";var l,d,N=w.ui.fancytree,c=/Mac/.test(navigator.platform),u="fancytree-drag-source",h="fancytree-drag-remove",S="fancytree-drop-accept",E="fancytree-drop-after",A="fancytree-drop-before",T="fancytree-drop-over",O="fancytree-drop-reject",F="fancytree-drop-target",y="application/x-fancytree-node",D=null,v=null,m=null,f=null,P=null,p=null,g=null,b=null,j=null,x=null;function C(){m=v=p=b=g=x=P=null,f&&f.removeClass(u+" "+h),f=null,D&&D.hide(),d&&(d.remove(),d=null)}function L(e){return 0===e?"":0<e?"+"+e:""+e}function I(e,t){var n,i,r,o,s=t.tree,a=t.dataTransfer;"dragstart"===e.type?(t.effectAllowed=s.options.dnd5.effectAllowed,t.dropEffect=s.options.dnd5.dropEffectDefault):(t.effectAllowed=b,t.dropEffect=g),t.dropEffectSuggested=(i=e,r=(n=s).options.dnd5.dropEffectDefault,o=r,c?i.metaKey&&i.altKey?o="link":i.ctrlKey?o="link":i.metaKey?o="move":i.altKey&&(o="copy"):i.ctrlKey?o="copy":i.shiftKey?o="move":i.altKey&&(o="link"),o!==p&&n.info("evalEffectModifiers: "+i.type+" - evalEffectModifiers(): "+p+" -> "+o),p=o),t.isMove="move"===t.dropEffect,t.files=a.files||[]}function R(e,t,n){var i=t.tree,r=t.dataTransfer;return"dragstart"!==e.type&&b!==t.effectAllowed&&i.warn("effectAllowed should only be changed in dragstart event: "+e.type+": data.effectAllowed changed from "+b+" -> "+t.effectAllowed),!1===n&&(i.info("applyDropEffectCallback: allowDrop === false"),t.effectAllowed="none",t.dropEffect="none"),t.isMove="move"===t.dropEffect,b=t.effectAllowed,g=t.dropEffect,r.effectAllowed=b,r.dropEffect=g}function _(e,t){var n,i,r,o,s,a,l,d,c;if(t.options.dnd5.scroll&&(n=t.tree,i=e,s=n.options.dnd5,a=n.$scrollParent[0],l=s.scrollSensitivity,d=s.scrollSpeed,c=0,a!==document&&"HTML"!==a.tagName?(r=n.$scrollParent.offset(),o=a.scrollTop,r.top+a.offsetHeight-i.pageY<l?0<a.scrollHeight-n.$scrollParent.innerHeight()-o&&(a.scrollTop=c=o+d):0<o&&i.pageY-r.top<l&&(a.scrollTop=c=o-d)):0<(o=w(document).scrollTop())&&i.pageY-o<l?(c=o-d,w(document).scrollTop(c)):w(window).height()-(i.pageY-o)<l&&(c=o+d,w(document).scrollTop(c)),c&&n.debug("autoScroll: "+c+"px")),!t.node)return t.tree.warn("Ignored dragover for non-node"),j;var u,h,f,p,g=null,y=t.tree,v=y.options,m=v.dnd5,b=t.node,x=t.otherNode,C="center",_=w(b.span),k=_.find("span.fancytree-title");if(!1===P)return y.debug("Ignored dragover, since dragenter returned false."),!1;("string"==typeof P&&w.error("assert failed: dragenter returned string"),h=_.offset(),p=(e.pageY-h.top)/_.height(),P.after&&.75<p?g="after":!P.over&&P.after&&.5<p?g="after":P.before&&p<=.25?g="before":!P.over&&P.before&&p<=.5?g="before":P.over&&(g="over"),m.preventVoidMoves&&"move"===t.dropEffect&&(b===x?(b.debug("Drop over source node prevented."),g=null):"before"===g&&x&&b===x.getNextSibling()?(b.debug("Drop after source node prevented."),g=null):"after"===g&&x&&b===x.getPrevSibling()?(b.debug("Drop before source node prevented."),g=null):"over"===g&&x&&x.parent===b&&x.isLastSibling()&&(b.debug("Drop last child over own parent prevented."),g=null)),(t.hitMode=g)&&m.dragOver)&&(I(e,t),m.dragOver(b,t),R(e,t,!!g),g=t.hitMode);if("after"===(j=g)||"before"===g||"over"===g){switch(u=m.dropMarkerOffsetX||0,g){case"before":C="top",u+=m.dropMarkerInsertOffsetX||0;break;case"after":C="bottom",u+=m.dropMarkerInsertOffsetX||0}f={my:"left"+L(u)+" center",at:"left "+C,of:k},v.rtl&&(f.my="right"+L(-u)+" center",f.at="right "+C),D.toggleClass(E,"after"===g).toggleClass(T,"over"===g).toggleClass(A,"before"===g).show().position(N.fixPositionOptions(f))}else D.hide();return w(b.span).toggleClass(F,"after"===g||"before"===g||"over"===g).toggleClass(E,"after"===g).toggleClass(A,"before"===g).toggleClass(S,"over"===g).toggleClass(O,!1===g),g}function s(e){var t,n,i,r,o,s,a,l=this,d=l.options.dnd5,c=null,u=N.getNode(e),h=e.dataTransfer||e.originalEvent.dataTransfer,f={tree:l,node:u,options:l.options,originalEvent:e.originalEvent,widget:l.widget,hitMode:P,dataTransfer:h,otherNode:v||null,otherNodeList:m||null,otherNodeData:null,useDefaultImage:!0,dropEffect:void 0,dropEffectSuggested:void 0,effectAllowed:void 0,files:null,isCancelled:void 0,isMove:void 0};switch(e.type){case"dragenter":if(x=null,!u){l.debug("Ignore non-node "+e.type+": "+e.target.tagName+"."+e.target.className),P=!1;break}if(w(u.span).addClass(T).removeClass(S+" "+O),i=0<=w.inArray(y,h.types),d.preventNonNodes&&!i){u.debug("Reject dropping a non-node."),P=!1;break}if(d.preventForeignNodes&&(!v||v.tree!==u.tree)){u.debug("Reject dropping a foreign node."),P=!1;break}if(d.preventSameParent&&f.otherNode&&f.otherNode.tree===u.tree&&u.parent===f.otherNode.parent){u.debug("Reject dropping as sibling (same parent)."),P=!1;break}if(d.preventRecursion&&f.otherNode&&f.otherNode.tree===u.tree&&u.isDescendantOf(f.otherNode)){u.debug("Reject dropping below own ancestor."),P=!1;break}D.show(),I(e,f),r=d.dragEnter(u,f),o=!!(s=r)&&(a=w.isPlainObject(s)?{over:!!s.over,before:!!s.before,after:!!s.after}:w.isArray(s)?{over:0<=w.inArray("over",s),before:0<=w.inArray("before",s),after:0<=w.inArray("after",s)}:{over:!0===s||"over"===s,before:!0===s||"before"===s,after:!0===s||"after"===s},0!==Object.keys(a).length&&a),R(e,f,c=(P=o)&&(o.over||o.before||o.after));break;case"dragover":if(!u){l.debug("Ignore non-node "+e.type+": "+e.target.tagName+"."+e.target.className);break}c=!!(j=_(e,f)),"over"!==j||u.expanded||!1===u.hasChildren()?x=null:x?d.autoExpandMS&&Date.now()-x>d.autoExpandMS&&(!d.dragExpand||!1!==d.dragExpand(u,f))&&u.setExpanded():x=Date.now();break;case"dragleave":if(!u){l.debug("Ignore non-node "+e.type+": "+e.target.tagName+"."+e.target.className);break}if(!w(u.span).hasClass(T)){u.debug("Ignore dragleave (multi).");break}w(u.span).removeClass(T+" "+S+" "+O),u.scheduleAction("cancel"),d.dragLeave(u,f),D.hide();break;case"drop":if(0<=w.inArray(y,h.types)&&(n=h.getData(y),l.info(e.type+": getData('application/x-fancytree-node'): '"+n+"'")),n||(n=h.getData("text"),l.info(e.type+": getData('text'): '"+n+"'")),n)try{void 0!==(t=JSON.parse(n)).title&&(f.otherNodeData=t)}catch(e){}l.debug(e.type+": nodeData: '"+n+"', otherNodeData: ",f.otherNodeData),w(u.span).removeClass(T+" "+S+" "+O),f.hitMode=j,I(e,f),f.isCancelled=!j;var p=v&&v.span,g=v&&v.tree;d.dragDrop(u,f),e.preventDefault(),p&&!document.body.contains(p)&&(g===l?(l.debug("Drop handler removed source element: generating dragEnd."),d.dragEnd(v,f)):l.warn("Drop handler removed source element: dragend event may be lost.")),C()}if(c)return e.preventDefault(),!1}return w.ui.fancytree.getDragNodeList=function(){return m||[]},w.ui.fancytree.getDragNode=function(){return v},w.ui.fancytree.registerExtension({name:"dnd5",version:"2.31.0",options:{autoExpandMS:1500,dropMarkerInsertOffsetX:-16,dropMarkerOffsetX:-24,multiSource:!1,effectAllowed:"all",dropEffectDefault:"move",preventForeignNodes:!1,preventNonNodes:!1,preventRecursion:!0,preventSameParent:!1,preventVoidMoves:!0,scroll:!0,scrollSensitivity:20,scrollSpeed:5,setTextTypeJson:!1,dragStart:null,dragDrag:w.noop,dragEnd:w.noop,dragEnter:null,dragOver:w.noop,dragExpand:w.noop,dragDrop:w.noop,dragLeave:w.noop},treeInit:function(e){var t,n=e.tree,i=e.options,r=i.glyph||null,o=i.dnd5;0<=w.inArray("dnd",i.extensions)&&w.error("Extensions 'dnd' and 'dnd5' are mutually exclusive."),o.dragStop&&w.error("dragStop is not used by ext-dnd5. Use dragEnd instead."),null!=o.preventRecursiveMoves&&w.error("preventRecursiveMoves was renamed to preventRecursion."),o.dragStart&&N.overrideMethod(e.options,"createNode",function(e,t){this._super.apply(this,arguments),t.node.span?t.node.span.draggable=!0:t.node.warn("Cannot add `draggable`: no span tag")}),this._superApply(arguments),this.$container.addClass("fancytree-ext-dnd5"),t=w("<span>").appendTo(this.$container),this.$scrollParent=t.scrollParent(),t.remove(),(D=w("#fancytree-drop-marker")).length||(D=w("<div id='fancytree-drop-marker'></div>").hide().css({"z-index":1e3,"pointer-events":"none"}).prependTo("body"),r&&N.setSpanIcon(D[0],r.map._addClass,r.map.dropMarker)),D.toggleClass("fancytree-rtl",!!i.rtl),o.dragStart&&n.$container.on("dragstart drag dragend",function(e){var t,n=this,i=n.options.dnd5,r=N.getNode(e),o=e.dataTransfer||e.originalEvent.dataTransfer,s={tree:n,node:r,options:n.options,originalEvent:e.originalEvent,widget:n.widget,dataTransfer:o,useDefaultImage:!0,dropEffect:void 0,dropEffectSuggested:void 0,effectAllowed:void 0,files:void 0,isCancelled:void 0,isMove:void 0};switch(e.type){case"dragstart":if(!r)return n.info("Ignored dragstart on a non-node."),!1;v=r,!1===i.multiSource?m=[r]:!0===i.multiSource?(m=n.getSelectedNodes(),r.isSelected()||m.unshift(r)):m=i.multiSource(r,s),(f=w(w.map(m,function(e){return e.span}))).addClass(u);var a=r.toDict();a.treeId=r.tree._id,t=JSON.stringify(a);try{o.setData(y,t),o.setData("text/html",w(r.span).html()),o.setData("text/plain",r.title)}catch(e){n.warn("Could not set data (IE only accepts 'text') - "+e)}return i.setTextTypeJson?o.setData("text",t):o.setData("text",r.title),I(e,s),!1===i.dragStart(r,s)?(C(),!1):(R(e,s),d=null,s.useDefaultImage&&(l=w(r.span).find(".fancytree-title"),m&&1<m.length&&(d=w("<span class='fancytree-childcounter'/>").text("+"+(m.length-1)).appendTo(l)),o.setDragImage&&o.setDragImage(l[0],-10,-10)),!0);case"drag":I(e,s),i.dragDrag(r,s),R(e,s),f.toggleClass(h,s.isMove);break;case"dragend":I(e,s),C(),s.isCancelled=!j,i.dragEnd(r,s,!j)}}.bind(n)),o.dragEnter&&n.$container.on("dragenter dragover dragleave drop",s.bind(n))}}),w.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],r):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=r(require("jquery"))):r(jQuery),o=function(d){"use strict";var t=/Mac/.test(navigator.platform),c=d.ui.fancytree.escapeHtml,a=d.ui.fancytree.unescapeHtml;return d.ui.fancytree._FancytreeNodeClass.prototype.editStart=function(){var t,n=this,e=this.tree,i=e.ext.edit,r=e.options.edit,o=d(".fancytree-title",n.span),s={node:n,tree:e,options:e.options,isNew:d(n[e.statusClassPropName]).hasClass("fancytree-edit-new"),orgTitle:n.title,input:null,dirty:!1};if(!1===r.beforeEdit.call(n,{type:"beforeEdit"},s))return!1;d.ui.fancytree.assert(!i.currentNode,"recursive edit"),i.currentNode=this,i.eventData=s,e.widget._unbind(),i.lastDraggableAttrValue=n.span.draggable,i.lastDraggableAttrValue&&(n.span.draggable=!1),d(document).on("mousedown.fancytree-edit",function(e){d(e.target).hasClass("fancytree-edit-input")||n.editEnd(!0,e)}),t=d("<input />",{class:"fancytree-edit-input",type:"text",value:e.options.escapeTitles?s.orgTitle:a(s.orgTitle)}),i.eventData.input=t,null!=r.adjustWidthOfs&&t.width(o.width()+r.adjustWidthOfs),null!=r.inputCss&&t.css(r.inputCss),o.html(t),t.focus().change(function(e){t.addClass("fancytree-edit-dirty")}).on("keydown",function(e){switch(e.which){case d.ui.keyCode.ESCAPE:n.editEnd(!1,e);break;case d.ui.keyCode.ENTER:return n.editEnd(!0,e),!1}e.stopPropagation()}).blur(function(e){return n.editEnd(!0,e)}),r.edit.call(n,{type:"edit"},s)},d.ui.fancytree._FancytreeNodeClass.prototype.editEnd=function(e,t){var n,i=this,r=this.tree,o=r.ext.edit,s=o.eventData,a=r.options.edit,l=d(".fancytree-title",i.span).find("input.fancytree-edit-input");return a.trim&&l.val(d.trim(l.val())),n=l.val(),s.dirty=n!==i.title,s.originalEvent=t,!1===e?s.save=!1:s.isNew?s.save=""!==n:s.save=s.dirty&&""!==n,!1!==a.beforeClose.call(i,{type:"beforeClose"},s)&&((!s.save||!1!==a.save.call(i,{type:"save"},s))&&(l.removeClass("fancytree-edit-dirty").off(),d(document).off(".fancytree-edit"),s.save?(i.setTitle(r.options.escapeTitles?n:c(n)),i.setFocus()):s.isNew?(i.remove(),i=s.node=null,o.relatedNode.setFocus()):(i.renderTitle(),i.setFocus()),o.eventData=null,o.currentNode=null,o.relatedNode=null,r.widget._bind(),o.lastDraggableAttrValue&&(i.span.draggable=!0),d(r.$container).focus(),s.input=null,a.close.call(i,{type:"close"},s),!0))},d.ui.fancytree._FancytreeNodeClass.prototype.editCreateNode=function(e,t){var n,i=this.tree,r=this;e=e||"child",null==t?t={title:""}:"string"==typeof t?t={title:t}:d.ui.fancytree.assert(d.isPlainObject(t)),"child"!==e||this.isExpanded()||!1===this.hasChildren()?((n=this.addNode(t,e)).match=!0,d(n[i.statusClassPropName]).removeClass("fancytree-hide").addClass("fancytree-match"),n.makeVisible().done(function(){d(n[i.statusClassPropName]).addClass("fancytree-edit-new"),r.tree.ext.edit.relatedNode=r,n.editStart()})):this.setExpanded().done(function(){r.editCreateNode(e,t)})},d.ui.fancytree._FancytreeClass.prototype.isEditing=function(){return this.ext.edit?this.ext.edit.currentNode:null},d.ui.fancytree._FancytreeNodeClass.prototype.isEditing=function(){return!!this.tree.ext.edit&&this.tree.ext.edit.currentNode===this},d.ui.fancytree.registerExtension({name:"edit",version:"2.31.0",options:{adjustWidthOfs:4,allowEmpty:!1,inputCss:{minWidth:"3em"},triggerStart:["f2","mac+enter","shift+click"],trim:!0,beforeClose:d.noop,beforeEdit:d.noop,close:d.noop,edit:d.noop,save:d.noop},currentNode:null,treeInit:function(e){var i=e.tree;this._superApply(arguments),this.$container.addClass("fancytree-ext-edit").on("fancytreebeforeupdateviewport",function(e,t){var n=i.isEditing();n&&(n.info("Cancel edit due to scroll event."),n.editEnd(!1,e))})},nodeClick:function(e){var t=d.ui.fancytree.eventToString(e.originalEvent),n=e.options.edit.triggerStart;return"shift+click"===t&&0<=d.inArray("shift+click",n)&&e.originalEvent.shiftKey?(e.node.editStart(),!1):"click"===t&&0<=d.inArray("clickActive",n)&&e.node.isActive()&&!e.node.isEditing()&&d(e.originalEvent.target).hasClass("fancytree-title")?(e.node.editStart(),!1):this._superApply(arguments)},nodeDblclick:function(e){return 0<=d.inArray("dblclick",e.options.edit.triggerStart)?(e.node.editStart(),!1):this._superApply(arguments)},nodeKeydown:function(e){switch(e.originalEvent.which){case 113:if(0<=d.inArray("f2",e.options.edit.triggerStart))return e.node.editStart(),!1;break;case d.ui.keyCode.ENTER:if(0<=d.inArray("mac+enter",e.options.edit.triggerStart)&&t)return e.node.editStart(),!1}return this._superApply(arguments)}}),d.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],o):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=o(require("jquery"))):o(jQuery),s=function(y){"use strict";var v="__not_found__",m=y.ui.fancytree.escapeHtml;function b(e){return(e+"").replace(/([.?*+^$[\]\\(){}|-])/g,"\\$1")}return y.ui.fancytree._FancytreeClass.prototype._applyFilterImpl=function(i,r,e){var t,n,o,s,a,l,d=0,c=this.options,u=c.escapeTitles,h=c.autoCollapse,f=y.extend({},c.filter,e),p="hide"===f.mode,g=!!f.leavesOnly&&!r;if("string"==typeof i){if(""===i)return this.warn("Fancytree passing an empty string as a filter is handled as clearFilter()."),void this.clearFilter();t=f.fuzzy?i.split("").reduce(function(e,t){return e+"[^"+t+"]*"+t}):b(i),o=new RegExp(".*"+t+".*","i"),s=new RegExp(b(i),"gi"),i=function(e){if(!e.title)return!1;var t,n=u?e.title:0<=(t=e.title).indexOf(">")?y("<div/>").html(t).text():t,i=!!o.test(n);return i&&f.highlight&&(e.titleWithHighlight=u?(a=n.replace(s,function(e){return"\ufff7"+e+"\ufff8"}),m(a).replace(/\uFFF7/g,"<mark>").replace(/\uFFF8/g,"</mark>")):n.replace(s,function(e){return"<mark>"+e+"</mark>"})),i}}return this.enableFilter=!0,this.lastFilterArgs=arguments,l=this.enableUpdate(!1),this.$div.addClass("fancytree-ext-filter"),p?this.$div.addClass("fancytree-ext-filter-hide"):this.$div.addClass("fancytree-ext-filter-dimm"),this.$div.toggleClass("fancytree-ext-filter-hide-expanders",!!f.hideExpanders),this.visit(function(e){delete e.match,delete e.titleWithHighlight,e.subMatchCount=0}),(n=this.getRootNode()._findDirectChild(v))&&n.remove(),c.autoCollapse=!1,this.visit(function(e){if(!g||null==e.children){var t=i(e),n=!1;if("skip"===t)return e.visit(function(e){e.match=!1},!0),"skip";t||!r&&"branch"!==t||!e.parent.match||(n=t=!0),t&&(d++,e.match=!0,e.visitParents(function(e){e.subMatchCount+=1,!f.autoExpand||n||e.expanded||(e.setExpanded(!0,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),e._filterAutoExpanded=!0)}))}}),c.autoCollapse=h,0===d&&f.nodata&&p&&(n=f.nodata,y.isFunction(n)&&(n=n()),!0===n?n={}:"string"==typeof n&&(n={title:n}),n=y.extend({statusNodeType:"nodata",key:v,title:this.options.strings.noData},n),this.getRootNode().addNode(n).match=!0),this._callHook("treeStructureChanged",this,"applyFilter"),this.enableUpdate(l),d},y.ui.fancytree._FancytreeClass.prototype.filterNodes=function(e,t){return"boolean"==typeof t&&(t={leavesOnly:t},this.warn("Fancytree.filterNodes() leavesOnly option is deprecated since 2.9.0 / 2015-04-19. Use opts.leavesOnly instead.")),this._applyFilterImpl(e,!1,t)},y.ui.fancytree._FancytreeClass.prototype.filterBranches=function(e,t){return this._applyFilterImpl(e,!0,t)},y.ui.fancytree._FancytreeClass.prototype.clearFilter=function(){var t,e=this.getRootNode()._findDirectChild(v),n=this.options.escapeTitles,i=this.options.enhanceTitle,r=this.enableUpdate(!1);e&&e.remove(),this.visit(function(e){e.match&&e.span&&(t=y(e.span).find(">span.fancytree-title"),n?t.text(e.title):t.html(e.title),i&&i({type:"enhanceTitle"},{node:e,$title:t})),delete e.match,delete e.subMatchCount,delete e.titleWithHighlight,e.$subMatchBadge&&(e.$subMatchBadge.remove(),delete e.$subMatchBadge),e._filterAutoExpanded&&e.expanded&&e.setExpanded(!1,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),delete e._filterAutoExpanded}),this.enableFilter=!1,this.lastFilterArgs=null,this.$div.removeClass("fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"),this._callHook("treeStructureChanged",this,"clearFilter"),this.enableUpdate(r)},y.ui.fancytree._FancytreeClass.prototype.isFilterActive=function(){return!!this.enableFilter},y.ui.fancytree._FancytreeNodeClass.prototype.isMatched=function(){return!(this.tree.enableFilter&&!this.match)},y.ui.fancytree.registerExtension({name:"filter",version:"2.31.0",options:{autoApply:!0,autoExpand:!1,counter:!0,fuzzy:!1,hideExpandedCounter:!0,hideExpanders:!1,highlight:!0,leavesOnly:!1,nodata:!0,mode:"dimm"},nodeLoadChildren:function(e,t){var n=e.tree;return this._superApply(arguments).done(function(){n.enableFilter&&n.lastFilterArgs&&e.options.filter.autoApply&&n._applyFilterImpl.apply(n,n.lastFilterArgs)})},nodeSetExpanded:function(e,t,n){var i=e.node;return delete i._filterAutoExpanded,!t&&e.options.filter.hideExpandedCounter&&i.$subMatchBadge&&i.$subMatchBadge.show(),this._superApply(arguments)},nodeRenderStatus:function(e){var t,n=e.node,i=e.tree,r=e.options.filter,o=y(n.span).find("span.fancytree-title"),s=y(n[i.statusClassPropName]),a=e.options.enhanceTitle,l=e.options.escapeTitles;return t=this._super(e),s.length&&i.enableFilter&&(s.toggleClass("fancytree-match",!!n.match).toggleClass("fancytree-submatch",!!n.subMatchCount).toggleClass("fancytree-hide",!(n.match||n.subMatchCount)),!r.counter||!n.subMatchCount||n.isExpanded()&&r.hideExpandedCounter?n.$subMatchBadge&&n.$subMatchBadge.hide():(n.$subMatchBadge||(n.$subMatchBadge=y("<span class='fancytree-childcounter'/>"),y("span.fancytree-icon, span.fancytree-custom-icon",n.span).append(n.$subMatchBadge)),n.$subMatchBadge.show().text(n.subMatchCount)),!n.span||n.isEditing&&n.isEditing.call(n)||(n.titleWithHighlight?o.html(n.titleWithHighlight):l?o.text(n.title):o.html(n.title),a&&a({type:"enhanceTitle"},{node:n,$title:o}))),t}}),y.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],s):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=s(require("jquery"))):s(jQuery),a=function(d){"use strict";var a=d.ui.fancytree,i={awesome3:{_addClass:"",checkbox:"icon-check-empty",checkboxSelected:"icon-check",checkboxUnknown:"icon-check icon-muted",dragHelper:"icon-caret-right",dropMarker:"icon-caret-right",error:"icon-exclamation-sign",expanderClosed:"icon-caret-right",expanderLazy:"icon-angle-right",expanderOpen:"icon-caret-down",loading:"icon-refresh icon-spin",nodata:"icon-meh",noExpander:"",radio:"icon-circle-blank",radioSelected:"icon-circle",doc:"icon-file-alt",docOpen:"icon-file-alt",folder:"icon-folder-close-alt",folderOpen:"icon-folder-open-alt"},awesome4:{_addClass:"fa",checkbox:"fa-square-o",checkboxSelected:"fa-check-square-o",checkboxUnknown:"fa-square fancytree-helper-indeterminate-cb",dragHelper:"fa-arrow-right",dropMarker:"fa-long-arrow-right",error:"fa-warning",expanderClosed:"fa-caret-right",expanderLazy:"fa-angle-right",expanderOpen:"fa-caret-down",loading:{html:"<span class='fa fa-spinner fa-pulse' />"},nodata:"fa-meh-o",noExpander:"",radio:"fa-circle-thin",radioSelected:"fa-circle",doc:"fa-file-o",docOpen:"fa-file-o",folder:"fa-folder-o",folderOpen:"fa-folder-open-o"},awesome5:{_addClass:"",checkbox:"far fa-square",checkboxSelected:"far fa-check-square",checkboxUnknown:"fas fa-square fancytree-helper-indeterminate-cb",radio:"far fa-circle",radioSelected:"fas fa-circle",radioUnknown:"far fa-dot-circle",dragHelper:"fas fa-arrow-right",dropMarker:"fas fa-long-arrow-alt-right",error:"fas fa-exclamation-triangle",expanderClosed:"fas fa-caret-right",expanderLazy:"fas fa-angle-right",expanderOpen:"fas fa-caret-down",loading:"fas fa-spinner fa-pulse",nodata:"far fa-meh",noExpander:"",doc:"far fa-file",docOpen:"far fa-file",folder:"far fa-folder",folderOpen:"far fa-folder-open"},bootstrap3:{_addClass:"glyphicon",checkbox:"glyphicon-unchecked",checkboxSelected:"glyphicon-check",checkboxUnknown:"glyphicon-expand fancytree-helper-indeterminate-cb",dragHelper:"glyphicon-play",dropMarker:"glyphicon-arrow-right",error:"glyphicon-warning-sign",expanderClosed:"glyphicon-menu-right",expanderLazy:"glyphicon-menu-right",expanderOpen:"glyphicon-menu-down",loading:"glyphicon-refresh fancytree-helper-spin",nodata:"glyphicon-info-sign",noExpander:"",radio:"glyphicon-remove-circle",radioSelected:"glyphicon-ok-circle",doc:"glyphicon-file",docOpen:"glyphicon-file",folder:"glyphicon-folder-close",folderOpen:"glyphicon-folder-open"},material:{_addClass:"material-icons",checkbox:{text:"check_box_outline_blank"},checkboxSelected:{text:"check_box"},checkboxUnknown:{text:"indeterminate_check_box"},dragHelper:{text:"play_arrow"},dropMarker:{text:"arrow-forward"},error:{text:"warning"},expanderClosed:{text:"chevron_right"},expanderLazy:{text:"last_page"},expanderOpen:{text:"expand_more"},loading:{text:"autorenew",addClass:"fancytree-helper-spin"},nodata:{text:"info"},noExpander:{text:""},radio:{text:"radio_button_unchecked"},radioSelected:{text:"radio_button_checked"},doc:{text:"insert_drive_file"},docOpen:{text:"insert_drive_file"},folder:{text:"folder"},folderOpen:{text:"folder_open"}}};function l(e,t,n,i){var r=n.map,o=r[i],s=d(e),a=s.find(".fancytree-childcounter"),l=t+" "+(r._addClass||"");"string"==typeof o?(e.innerHTML="",s.attr("class",l+" "+o).append(a)):o&&(o.text?e.textContent=""+o.text:o.html?e.innerHTML=o.html:e.innerHTML="",s.attr("class",l+" "+(o.addClass||"")).append(a))}return d.ui.fancytree.registerExtension({name:"glyph",version:"2.31.0",options:{preset:null,map:{}},treeInit:function(e){var t=e.tree,n=e.options.glyph;n.preset?(a.assert(!!i[n.preset],"Invalid value for `options.glyph.preset`: "+n.preset),n.map=d.extend({},i[n.preset],n.map)):t.warn("ext-glyph: missing `preset` option."),this._superApply(arguments),t.$container.addClass("fancytree-ext-glyph")},nodeRenderStatus:function(e){var t,n,i,r=e.node,o=d(r.span),s=e.options.glyph;return n=this._super(e),r.isRoot()||((i=o.children("span.fancytree-expander").get(0))&&l(i,"fancytree-expander",s,r.expanded&&r.hasChildren()?"expanderOpen":r.isUndefined()?"expanderLazy":r.hasChildren()?"expanderClosed":"noExpander"),(i=r.tr?d("td",r.tr).find("span.fancytree-checkbox").get(0):o.children("span.fancytree-checkbox").get(0))&&(t=a.evalOption("checkbox",r,r,s,!1),r.parent&&r.parent.radiogroup||"radio"===t?l(i,"fancytree-checkbox fancytree-radio",s,r.selected?"radioSelected":"radio"):l(i,"fancytree-checkbox",s,r.selected?"checkboxSelected":r.partsel?"checkboxUnknown":"checkbox")),(i=o.children("span.fancytree-icon").get(0))&&l(i,"fancytree-icon",s,r.statusNodeType?r.statusNodeType:r.folder?r.expanded&&r.hasChildren()?"folderOpen":"folder":r.expanded?"docOpen":"doc")),n},nodeSetStatus:function(e,t,n,i){var r,o,s=e.options.glyph,a=e.node;return r=this._superApply(arguments),"error"!==t&&"loading"!==t&&"nodata"!==t||(a.parent?(o=d("span.fancytree-expander",a.span).get(0))&&l(o,"fancytree-expander",s,t):(o=d(".fancytree-statusnode-"+t,a[this.nodeContainerAttrName]).find("span.fancytree-icon").get(0))&&l(o,"fancytree-icon",s,t)),r}}),d.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],a):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=a(require("jquery"))):a(jQuery),l=function(c){"use strict";var u=c.ui.keyCode,a={text:[u.UP,u.DOWN],checkbox:[u.UP,u.DOWN,u.LEFT,u.RIGHT],link:[u.UP,u.DOWN,u.LEFT,u.RIGHT],radiobutton:[u.UP,u.DOWN,u.LEFT,u.RIGHT],"select-one":[u.LEFT,u.RIGHT],"select-multiple":[u.LEFT,u.RIGHT]};function h(e,t){var n,i=null,r=0;return e.children().each(function(){if(t<=r)return i=c(this),!1;n=c(this).prop("colspan"),r+=n||1}),i}function l(e,t){var n,i,r,o,s,a,l=e.closest("td"),d=null;switch(t){case u.LEFT:d=l.prev();break;case u.RIGHT:d=l.next();break;case u.UP:case u.DOWN:for(n=l.parent(),r=n,s=l.get(0),a=0,r.children().each(function(){if(this===s)return!1;o=c(this).prop("colspan"),a+=o||1}),i=a;(n=t===u.UP?n.prev():n.next()).length&&(n.is(":hidden")||!(d=h(n,i))||!d.find(":input,a").length););}return d}return c.ui.fancytree.registerExtension({name:"gridnav",version:"2.31.0",options:{autofocusInput:!1,handleCursorKeys:!0},treeInit:function(i){this._requireExtension("table",!0,!0),this._superApply(arguments),this.$container.addClass("fancytree-ext-gridnav"),this.$container.on("focusin",function(e){var t,n=c.ui.fancytree.getNode(e.target);n&&!n.isActive()&&(t=i.tree._makeHookContext(n,e),i.tree._callHook("nodeSetActive",t,!0))})},nodeSetActive:function(e,t,n){var i=e.options.gridnav,r=e.node,o=e.originalEvent||{},s=c(o.target).is(":input");t=!1!==t,this._superApply(arguments),t&&(e.options.titlesTabbable?(s||(c(r.span).find("span.fancytree-title").focus(),r.setFocus()),e.tree.$container.attr("tabindex","-1")):i.autofocusInput&&!s&&c(r.tr||r.span).find(":input:enabled").first().focus())},nodeKeydown:function(e){var t,n,i,r=e.options.gridnav,o=e.originalEvent,s=c(o.target);return s.is(":input:enabled")?t=s.prop("type"):s.is("a")&&(t="link"),t&&r.handleCursorKeys?!((n=a[t])&&0<=c.inArray(o.which,n)&&(i=l(s,o.which))&&i.length)||(i.find(":input:enabled,a").focus(),!1):this._superApply(arguments)}}),c.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree","./jquery.fancytree.table"],l):"object"==typeof module&&module.exports?(require("./jquery.fancytree.table"),module.exports=l(require("jquery"))):l(jQuery),d=function(s){"use strict";return s.ui.fancytree.registerExtension({name:"multi",version:"2.31.0",options:{allowNoSelect:!1,mode:"sameParent"},treeInit:function(e){this._superApply(arguments),this.$container.addClass("fancytree-ext-multi"),1===e.options.selectMode&&s.error("Fancytree ext-multi: selectMode: 1 (single) is not compatible.")},nodeClick:function(e){var t=e.tree,n=e.node,i=t.getActiveNode()||t.getFirstChild(),r="checkbox"===e.targetType,o="expander"===e.targetType;switch(s.ui.fancytree.eventToString(e.originalEvent)){case"click":if(o)break;r||(t.selectAll(!1),n.setSelected());break;case"shift+click":t.visitRows(function(e){if(e.setSelected(),e===n)return!1},{start:i,reverse:i.isBelowOf(n)});break;case"ctrl+click":case"meta+click":return void n.toggleSelected()}return this._superApply(arguments)},nodeKeydown:function(e){var t=e.tree,n=e.node,i=e.originalEvent;switch(s.ui.fancytree.eventToString(i)){case"up":case"down":t.selectAll(!1),n.navigate(i.which,!0),t.getActiveNode().setSelected();break;case"shift+up":case"shift+down":n.navigate(i.which,!0),t.getActiveNode().setSelected()}return this._superApply(arguments)}}),s.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],d):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=d(require("jquery"))):d(jQuery),c=function(p){"use strict";var t=null,n=window.localStorage?{get:function(e){return window.localStorage.getItem(e)},set:function(e,t){window.localStorage.setItem(e,t)},remove:function(e){window.localStorage.removeItem(e)}}:null,i=window.sessionStorage?{get:function(e){return window.sessionStorage.getItem(e)},set:function(e,t){window.sessionStorage.setItem(e,t)},remove:function(e){window.sessionStorage.removeItem(e)}}:null,r=p.ui.fancytree.assert,u="active",g="expanded",h="focus",f="selected";return"function"==typeof Cookies?t={get:Cookies.get,set:function(e,t){Cookies.set(e,t,this.options.persist.cookie)},remove:Cookies.remove}:p&&"function"==typeof p.cookie&&(t={get:p.cookie,set:function(e,t){p.cookie.set(e,t,this.options.persist.cookie)},remove:p.removeCookie}),p.ui.fancytree._FancytreeClass.prototype.clearPersistData=function(e){var t=this.ext.persist,n=t.cookiePrefix;0<=(e=e||"active expanded focus selected").indexOf(u)&&t._data(n+u,null),0<=e.indexOf(g)&&t._data(n+g,null),0<=e.indexOf(h)&&t._data(n+h,null),0<=e.indexOf(f)&&t._data(n+f,null)},p.ui.fancytree._FancytreeClass.prototype.clearCookies=function(e){return this.warn("'tree.clearCookies()' is deprecated since v2.27.0: use 'clearPersistData()' instead."),this.clearPersistData(e)},p.ui.fancytree._FancytreeClass.prototype.getPersistData=function(){var e=this.ext.persist,t=e.cookiePrefix,n=e.cookieDelimiter,i={};return i[u]=e._data(t+u),i[g]=(e._data(t+g)||"").split(n),i[f]=(e._data(t+f)||"").split(n),i[h]=e._data(t+h),i},p.ui.fancytree.registerExtension({name:"persist",version:"2.31.0",options:{cookieDelimiter:"~",cookiePrefix:void 0,cookie:{raw:!1,expires:"",path:"",domain:"",secure:!1},expandLazy:!1,expandOpts:void 0,fireActivate:!0,overrideSource:!0,store:"auto",types:"active expanded focus selected"},_data:function(e,t){var n=this._local.store;if(void 0===t)return n.get.call(this,e);null===t?n.remove.call(this,e):n.set.call(this,e,t)},_appendKey:function(e,t,n){t=""+t;var i=this._local,r=this.options.persist.cookieDelimiter,o=i.cookiePrefix+e,s=i._data(o),a=s?s.split(r):[],l=p.inArray(t,a);0<=l&&a.splice(l,1),n&&a.push(t),i._data(o,a.join(r))},treeInit:function(e){var a=e.tree,l=e.options,d=this._local,c=this.options.persist;return d.cookiePrefix=c.cookiePrefix||"fancytree-"+a._id+"-",d.storeActive=0<=c.types.indexOf(u),d.storeExpanded=0<=c.types.indexOf(g),d.storeSelected=0<=c.types.indexOf(f),d.storeFocus=0<=c.types.indexOf(h),d.store=null,"auto"===c.store&&(c.store=n?"local":"cookie"),p.isPlainObject(c.store)?d.store=c.store:"cookie"===c.store?d.store=t:"local"===c.store?d.store="local"===c.store?n:i:"session"===c.store&&(d.store="local"===c.store?n:i),r(d.store,"Need a valid store."),a.$div.on("fancytreeinit",function(e){if(!1!==a._triggerTreeEvent("beforeRestore",null,{})){var t,n,i,r,o=d._data(d.cookiePrefix+h),s=!1===c.fireActivate;t=d._data(d.cookiePrefix+g),i=t&&t.split(c.cookieDelimiter),(d.storeExpanded?function e(t,n,i,r,o){var s,a,l,d,c=!1,u=t.options.persist.expandOpts,h=[],f=[];for(i=i||[],o=o||p.Deferred(),s=0,l=i.length;s<l;s++)a=i[s],(d=t.getNodeByKey(a))?r&&d.isUndefined()?(c=!0,t.debug("_loadLazyNodes: "+d+" is lazy: loading..."),"expand"===r?h.push(d.setExpanded(!0,u)):h.push(d.load())):(t.debug("_loadLazyNodes: "+d+" already loaded."),d.setExpanded(!0,u)):(f.push(a),t.debug("_loadLazyNodes: "+d+" was not yet found."));return p.when.apply(p,h).always(function(){if(c&&0<f.length)e(t,n,f,r,o);else{if(f.length)for(t.warn("_loadLazyNodes: could not load those keys: ",f),s=0,l=f.length;s<l;s++)a=i[s],n._appendKey(g,i[s],!1);o.resolve()}}),o}(a,d,i,!!c.expandLazy&&"expand",null):(new p.Deferred).resolve()).done(function(){if(d.storeSelected){if(t=d._data(d.cookiePrefix+f))for(i=t.split(c.cookieDelimiter),n=0;n<i.length;n++)(r=a.getNodeByKey(i[n]))?(void 0===r.selected||c.overrideSource&&!1===r.selected)&&(r.selected=!0,r.renderStatus()):d._appendKey(f,i[n],!1);3===a.options.selectMode&&a.visit(function(e){if(e.selected)return e.fixSelection3AfterClick(),"skip"})}d.storeActive&&(!(t=d._data(d.cookiePrefix+u))||!l.persist.overrideSource&&a.activeNode||(r=a.getNodeByKey(t))&&(r.debug("persist: set active",t),r.setActive(!0,{noFocus:!0,noEvents:s}))),d.storeFocus&&o&&(r=a.getNodeByKey(o))&&(a.options.titlesTabbable?p(r.span).find(".fancytree-title").focus():p(a.$container).focus()),a._triggerTreeEvent("restore",null,{})})}}),this._superApply(arguments)},nodeSetActive:function(e,t,n){var i,r=this._local;return t=!1!==t,i=this._superApply(arguments),r.storeActive&&r._data(r.cookiePrefix+u,this.activeNode?this.activeNode.key:null),i},nodeSetExpanded:function(e,t,n){var i,r=e.node,o=this._local;return t=!1!==t,i=this._superApply(arguments),o.storeExpanded&&o._appendKey(g,r.key,t),i},nodeSetFocus:function(e,t){var n,i=this._local;return t=!1!==t,n=this._superApply(arguments),i.storeFocus&&i._data(i.cookiePrefix+h,this.focusNode?this.focusNode.key:null),n},nodeSetSelected:function(e,t,n){var i,r,o=e.tree,s=e.node,a=this._local;return t=!1!==t,i=this._superApply(arguments),a.storeSelected&&(3===o.options.selectMode?(r=(r=p.map(o.getSelectedNodes(!0),function(e){return e.key})).join(e.options.persist.cookieDelimiter),a._data(a.cookiePrefix+f,r)):a._appendKey(f,s.key,s.selected)),i}}),p.ui.fancytree},"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],c):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=c(require("jquery"))):c(jQuery),u=function(C){"use strict";function _(e,t){t=t||"",e||C.error("Assertion failed "+t)}function k(e,n){e.visit(function(e){var t=e.tr;if(t&&(t.style.display=e.hide||!n?"none":""),!e.expanded)return"skip"})}return C.ui.fancytree.registerExtension({name:"table",version:"2.31.0",options:{checkboxColumnIdx:null,indentation:16,mergeStatusColumns:!0,nodeColumnIdx:0},treeInit:function(e){var t,n,i,r,o=e.tree,s=e.options,a=s.table,l=o.widget.element;if(null!=a.customStatus&&(null==s.renderStatusColumns?(o.warn("The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."),s.renderStatusColumns=a.customStatus):C.error("The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead.")),s.renderStatusColumns&&!0===s.renderStatusColumns&&(s.renderStatusColumns=s.renderColumns),l.addClass("fancytree-container fancytree-ext-table"),(r=l.find(">tbody")).length||(l.find(">tr").length&&C.error("Expected table > tbody > tr. If you see this please open an issue."),r=C("<tbody>").appendTo(l)),o.tbody=r[0],o.columnCount=C("thead >tr",l).last().find(">th",l).length,(i=r.children("tr").first()).length)n=i.children("td").length,o.columnCount&&n!==o.columnCount&&(o.warn("Column count mismatch between thead ("+o.columnCount+") and tbody ("+n+"): using tbody."),o.columnCount=n),i=i.clone();else for(_(1<=o.columnCount,"Need either <thead> or <tbody> with <td> elements to determine column count."),i=C("<tr />"),t=0;t<o.columnCount;t++)i.append("<td />");i.find(">td").eq(a.nodeColumnIdx).html("<span class='fancytree-node' />"),s.aria&&(i.attr("role","row"),i.find("td").attr("role","gridcell")),o.rowFragment=document.createDocumentFragment(),o.rowFragment.appendChild(i.get(0)),r.empty(),o.statusClassPropName="tr",o.ariaPropName="tr",this.nodeContainerAttrName="tr",o.$container=l,this._superApply(arguments),C(o.rootNode.ul).remove(),o.rootNode.ul=null,this.$container.attr("tabindex",s.tabindex),s.aria&&o.$container.attr("role","treegrid").attr("aria-readonly",!0)},nodeRemoveChildMarkup:function(e){e.node.visit(function(e){e.tr&&(C(e.tr).remove(),e.tr=null)})},nodeRemoveMarkup:function(e){var t=e.node;t.tr&&(C(t.tr).remove(),t.tr=null),this.nodeRemoveChildMarkup(e)},nodeRender:function(e,t,n,i,r){var o,s,a,l,d,c,u,h,f=e.tree,p=e.node,g=e.options,y=!p.parent;if(!1!==f._enableUpdate){if(r||(e.hasCollapsedParents=p.parent&&!p.parent.expanded),!y)if(p.tr&&t&&this.nodeRemoveMarkup(e),p.tr)t?this.nodeRenderTitle(e):this.nodeRenderStatus(e);else{if(e.hasCollapsedParents&&!n)return;d=f.rowFragment.firstChild.cloneNode(!0),_(c=function(e){var t,n,i=e.parent,r=i?i.children:null;if(r&&1<r.length&&r[0]!==e)for(_((n=r[C.inArray(e,r)-1]).tr);n.children&&n.children.length&&(t=n.children[n.children.length-1]).tr;)n=t;else n=i;return n}(p)),!0===i&&r?d.style.display="none":n&&e.hasCollapsedParents&&(d.style.display="none"),c.tr?(b=c.tr,x=d,b.parentNode.insertBefore(x,b.nextSibling)):(_(!c.parent,"prev. row must have a tr, or be system root"),v=f.tbody,m=d,v.insertBefore(m,v.firstChild)),p.tr=d,p.key&&g.generateIds&&(p.tr.id=g.idPrefix+p.key),(p.tr.ftnode=p).span=C("span.fancytree-node",p.tr).get(0),this.nodeRenderTitle(e),g.createNode&&g.createNode.call(f,{type:"createNode"},e)}var 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\ No newline at end of file
diff --git a/dist/jquery.fancytree-all.js b/dist/jquery.fancytree-all.js
index 78b71ca6..6546ee57 100644
--- a/dist/jquery.fancytree-all.js
+++ b/dist/jquery.fancytree-all.js
@@ -3,12 +3,12 @@
  * Tree view control with support for lazy loading and much more.
  * https://github.com/mar10/fancytree/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 /** Core Fancytree module.
@@ -44,8 +44,8 @@
 		attr,
 		FT = null, // initialized below
 		TEST_IMG = new RegExp(/\.|\//), // strings are considered image urls if they contain '.' or '/'
-		REX_HTML = /[&<>"'\/]/g, // Escape those characters
-		REX_TOOLTIP = /[<>"'\/]/g, // Don't escape `&` in tooltips
+		REX_HTML = /[&<>"'/]/g, // Escape those characters
+		REX_TOOLTIP = /[<>"'/]/g, // Don't escape `&` in tooltips
 		RECURSIVE_REQUEST_ERROR = "$recursive_request",
 		ENTITY_MAP = {
 			"&": "&amp;",
@@ -265,28 +265,30 @@
 			target = {};
 		}
 		if (i === length) {
-			throw "need at least two args";
+			throw Error("need at least two args");
 		}
 		for (; i < length; i++) {
 			// Only deal with non-null/undefined values
 			if ((options = arguments[i]) != null) {
 				// Extend the base object
 				for (name in options) {
-					src = target[name];
-					copy = options[name];
-					// Prevent never-ending loop
-					if (target === copy) {
-						continue;
-					}
-					// Recurse if we're merging plain objects
-					// (NOTE: unlike $.extend, we don't merge arrays, but relace them)
-					if (copy && $.isPlainObject(copy)) {
-						clone = src && $.isPlainObject(src) ? src : {};
-						// Never move original objects, clone them
-						target[name] = _simpleDeepMerge(clone, copy);
-						// Don't bring in undefined values
-					} else if (copy !== undefined) {
-						target[name] = copy;
+					if (options.hasOwnProperty(name)) {
+						src = target[name];
+						copy = options[name];
+						// Prevent never-ending loop
+						if (target === copy) {
+							continue;
+						}
+						// Recurse if we're merging plain objects
+						// (NOTE: unlike $.extend, we don't merge arrays, but replace them)
+						if (copy && $.isPlainObject(copy)) {
+							clone = src && $.isPlainObject(src) ? src : {};
+							// Never move original objects, clone them
+							target[name] = _simpleDeepMerge(clone, copy);
+							// Don't bring in undefined values
+						} else if (copy !== undefined) {
+							target[name] = copy;
+						}
 					}
 				}
 			}
@@ -389,11 +391,10 @@
 			return $.Deferred(function() {
 				this.resolve();
 			}).promise();
-		} else {
-			return $.Deferred(function() {
-				this.resolveWith(context, argArray);
-			}).promise();
 		}
+		return $.Deferred(function() {
+			this.resolveWith(context, argArray);
+		}).promise();
 	}
 
 	function _getRejectedPromise(context, argArray) {
@@ -401,11 +402,10 @@
 			return $.Deferred(function() {
 				this.reject();
 			}).promise();
-		} else {
-			return $.Deferred(function() {
-				this.rejectWith(context, argArray);
-			}).promise();
 		}
+		return $.Deferred(function() {
+			this.rejectWith(context, argArray);
+		}).promise();
 	}
 
 	function _makeResolveFunc(deferred, context) {
@@ -611,6 +611,11 @@
 			for (var i = 0, l = children.length; i < l; i++) {
 				this.children.push(new FancytreeNode(this, children[i]));
 			}
+			this.tree._callHook(
+				"treeStructureChanged",
+				this.tree,
+				"setChildren"
+			);
 		},
 		/**
 		 * Append (or insert) a list of child nodes.
@@ -788,12 +793,14 @@
 				IGNORE_MAP = { children: true, expanded: true, parent: true }; // TODO: should be global
 
 			for (name in patch) {
-				v = patch[name];
-				if (!IGNORE_MAP[name] && !$.isFunction(v)) {
-					if (NODE_ATTR_MAP[name]) {
-						this[name] = v;
-					} else {
-						this.data[name] = v;
+				if (patch.hasOwnProperty(name)) {
+					v = patch[name];
+					if (!IGNORE_MAP[name] && !$.isFunction(v)) {
+						if (NODE_ATTR_MAP[name]) {
+							this[name] = v;
+						} else {
+							this.data[name] = v;
+						}
 					}
 				}
 			}
@@ -889,7 +896,7 @@
 		 * @param {*} msg string or object or array of such
 		 */
 		error: function(msg) {
-			if (this.options.debugLevel >= 1) {
+			if (this.tree.options.debugLevel >= 1) {
 				Array.prototype.unshift.call(arguments, this.toString());
 				consoleApply("error", arguments);
 			}
@@ -928,6 +935,16 @@
 			});
 			return res;
 		},
+		/** Find a node relative to self.
+		 *
+		 * @param {number|string} where The keyCode that would normally trigger this move,
+		 *		or a keyword ('down', 'first', 'last', 'left', 'parent', 'right', 'up').
+		 * @returns {FancytreeNode}
+		 * @since v2.31
+		 */
+		findRelatedNode: function(where, includeHidden) {
+			return this.tree.findRelatedNode(this, where, includeHidden);
+		},
 		/* Apply selection state (internal use only) */
 		_changeSelectStatusAttrs: function(state) {
 			var changed = false,
@@ -986,6 +1003,10 @@
 
 			this.visit(function(node) {
 				node._changeSelectStatusAttrs(flag);
+				if (node.radiogroup) {
+					// #931: don't (de)select this branch
+					return "skip";
+				}
 			});
 			this.fixSelection3FromEndNodes(callOpts);
 		},
@@ -1041,11 +1062,12 @@
 							}
 						}
 					}
+					// eslint-disable-next-line no-nested-ternary
 					state = allSelected
 						? true
 						: someSelected
-							? undefined
-							: false;
+						? undefined
+						: false;
 				} else {
 					// This is an end-node: simply report the status
 					unselState = FT.evalOption(
@@ -1057,6 +1079,15 @@
 					);
 					state = unselState == null ? !!node.selected : !!unselState;
 				}
+				// #939: Keep a `partsel` flag that was explicitly set on a lazy node
+				if (
+					node.partsel &&
+					!node.selected &&
+					node.lazy &&
+					node.children == null
+				) {
+					state = undefined;
+				}
 				node._changeSelectStatusAttrs(state);
 				return state;
 			}
@@ -1105,6 +1136,7 @@
 						}
 					}
 				}
+				// eslint-disable-next-line no-nested-ternary
 				state = allSelected ? true : someSelected ? undefined : false;
 				node._changeSelectStatusAttrs(state);
 			});
@@ -1197,19 +1229,18 @@
 			});
 			return res.join(separator);
 		},
-		/** Return the parent keys separated by options.keyPathSeparator, e.g. "id_1/id_17/id_32".
+		/** Return the parent keys separated by options.keyPathSeparator, e.g. "/id_1/id_17/id_32".
+		 *
+		 * (Unlike `node.getPath()`, this method prepends a "/" and inverts the first argument.)
+		 *
+		 * @see FancytreeNode#getPath
 		 * @param {boolean} [excludeSelf=false]
 		 * @returns {string}
 		 */
 		getKeyPath: function(excludeSelf) {
-			var path = [],
-				sep = this.tree.options.keyPathSeparator;
-			this.visitParents(function(n) {
-				if (n.parent) {
-					path.unshift(n.key);
-				}
-			}, !excludeSelf);
-			return sep + path.join(sep);
+			var sep = this.tree.options.keyPathSeparator;
+
+			return sep + this.getPath(!excludeSelf, "key", sep);
 		},
 		/** Return the last child of this node or null.
 		 * @returns {FancytreeNode | null}
@@ -1273,6 +1304,30 @@
 			}
 			return l;
 		},
+		/** Return a string representing the hierachical node path, e.g. "a/b/c".
+		 * @param {boolean} [includeSelf=true]
+		 * @param {string | function} [part="title"] node property name or callback
+		 * @param {string} [separator="/"]
+		 * @returns {string}
+		 * @since v2.31
+		 */
+		getPath: function(includeSelf, part, separator) {
+			includeSelf = includeSelf !== false;
+			part = part || "title";
+			separator = separator || "/";
+
+			var val,
+				path = [],
+				isFunc = $.isFunction(part);
+
+			this.visitParents(function(n) {
+				if (n.parent) {
+					val = isFunc ? part(n) : n[part];
+					path.unshift(val);
+				}
+			}, includeSelf);
+			return path.join(separator);
+		},
 		/** Return the predecessor node (under the same parent) or null.
 		 * @returns {FancytreeNode | null}
 		 */
@@ -1499,13 +1554,39 @@
 		isVisible: function() {
 			var i,
 				l,
+				n,
+				hasFilter = this.tree.enableFilter,
 				parents = this.getParentList(false, false);
 
+			// TODO: check $(n.span).is(":visible")
+			// i.e. return false for nodes (but not parents) that are hidden
+			// by a filter
+			if (hasFilter && !this.match && !this.subMatchCount) {
+				this.debug(
+					"isVisible: HIDDEN (" +
+						hasFilter +
+						", " +
+						this.match +
+						", " +
+						this.match +
+						")"
+				);
+				return false;
+			}
+
 			for (i = 0, l = parents.length; i < l; i++) {
-				if (!parents[i].expanded) {
+				n = parents[i];
+
+				if (!n.expanded) {
+					this.debug("isVisible: HIDDEN (parent collapsed)");
 					return false;
 				}
+				// if (hasFilter && !n.match && !n.subMatchCount) {
+				// 	this.debug("isVisible: HIDDEN (" + hasFilter + ", " + this.match + ", " + this.match + ")");
+				// 	return false;
+				// }
 			}
+			this.debug("isVisible: VISIBLE");
 			return true;
 		},
 		/** Deprecated.
@@ -1525,7 +1606,7 @@
 		load: function(forceReload) {
 			var res,
 				source,
-				that = this,
+				self = this,
 				wasExpanded = this.isExpanded();
 
 			_assert(this.isLazy(), "load() requires a lazy node");
@@ -1551,11 +1632,11 @@
 			if (wasExpanded) {
 				this.expanded = true;
 				res.always(function() {
-					that.render();
+					self.render();
 				});
 			} else {
 				res.always(function() {
-					that.renderStatus(); // fix expander icon to 'loaded'
+					self.renderStatus(); // fix expander icon to 'loaded'
 				});
 			}
 			return res;
@@ -1568,7 +1649,7 @@
 		 */
 		makeVisible: function(opts) {
 			var i,
-				that = this,
+				self = this,
 				deferreds = [],
 				dfd = new $.Deferred(),
 				parents = this.getParentList(false, false),
@@ -1578,15 +1659,15 @@
 
 			// Expand bottom-up, so only the top node is animated
 			for (i = len - 1; i >= 0; i--) {
-				// that.debug("pushexpand" + parents[i]);
+				// self.debug("pushexpand" + parents[i]);
 				deferreds.push(parents[i].setExpanded(true, opts));
 			}
 			$.when.apply($, deferreds).done(function() {
 				// All expands have finished
-				// that.debug("expand DONE", scroll);
+				// self.debug("expand DONE", scroll);
 				if (scroll) {
-					that.scrollIntoView(effects).done(function() {
-						// that.debug("scroll DONE");
+					self.scrollIntoView(effects).done(function() {
+						// self.debug("scroll DONE");
 						dfd.resolve();
 					});
 				} else {
@@ -1618,6 +1699,7 @@
 				}
 			}
 			var pos,
+				tree = this.tree,
 				prevParent = this.parent,
 				targetParent =
 					mode === "child" ? targetNode : targetNode.parent;
@@ -1699,10 +1781,10 @@
 				targetParent.triggerModifyChild("add", this);
 			}
 			// Handle cross-tree moves
-			if (this.tree !== targetNode.tree) {
+			if (tree !== targetNode.tree) {
 				// Fix node.tree for all source nodes
 				//			_assert(false, "Cross-tree move is not yet implemented.");
-				this.warn("Cross-tree moveTo is experimantal!");
+				this.warn("Cross-tree moveTo is experimental!");
 				this.visit(function(n) {
 					// TODO: fix selection state and activation, ...
 					n.tree = targetNode.tree;
@@ -1713,6 +1795,7 @@
 			// if( !targetParent.expanded ){
 			//   prevParent.ul.removeChild(this.li);
 			// }
+			tree._callHook("treeStructureChanged", tree, "moveTo");
 
 			// Update HTML markup
 			if (!prevParent.isDescendantOf(targetParent)) {
@@ -1768,117 +1851,38 @@
 		 * @returns {$.Promise}
 		 */
 		navigate: function(where, activate) {
-			var i,
-				parents,
-				res,
-				handled = true,
-				KC = $.ui.keyCode,
-				sib = null;
-
-			// Navigate to node
-			function _goto(n) {
-				if (n) {
-					// setFocus/setActive will scroll later (if autoScroll is specified)
-					try {
-						n.makeVisible({ scrollIntoView: false });
-					} catch (e) {} // #272
-					// Node may still be hidden by a filter
-					if (!$(n.span).is(":visible")) {
-						n.debug("Navigate: skipping hidden node");
-						n.navigate(where, activate);
-						return;
-					}
-					return activate === false ? n.setFocus() : n.setActive();
-				}
-			}
+			var node,
+				KC = $.ui.keyCode;
 
+			// Handle optional expand/collapse action for LEFT/RIGHT
 			switch (where) {
-				case KC.BACKSPACE:
-					if (this.parent && this.parent.parent) {
-						res = _goto(this.parent);
-					}
-					break;
-				case KC.HOME:
-					this.tree.visit(function(n) {
-						// goto first visible node
-						if ($(n.span).is(":visible")) {
-							res = _goto(n);
-							return false;
-						}
-					});
-					break;
-				case KC.END:
-					this.tree.visit(function(n) {
-						// goto last visible node
-						if ($(n.span).is(":visible")) {
-							res = n;
-						}
-					});
-					if (res) {
-						res = _goto(res);
-					}
-					break;
+				case "left":
 				case KC.LEFT:
 					if (this.expanded) {
-						this.setExpanded(false);
-						res = _goto(this);
-					} else if (this.parent && this.parent.parent) {
-						res = _goto(this.parent);
+						return this.setExpanded(false);
 					}
 					break;
+				case "right":
 				case KC.RIGHT:
 					if (!this.expanded && (this.children || this.lazy)) {
-						this.setExpanded();
-						res = _goto(this);
-					} else if (this.children && this.children.length) {
-						res = _goto(this.children[0]);
-					}
-					break;
-				case KC.UP:
-					sib = this.getPrevSibling();
-					// #359: skip hidden sibling nodes, preventing a _goto() recursion
-					while (sib && !$(sib.span).is(":visible")) {
-						sib = sib.getPrevSibling();
-					}
-					while (
-						sib &&
-						sib.expanded &&
-						sib.children &&
-						sib.children.length
-					) {
-						sib = sib.children[sib.children.length - 1];
-					}
-					if (!sib && this.parent && this.parent.parent) {
-						sib = this.parent;
-					}
-					res = _goto(sib);
-					break;
-				case KC.DOWN:
-					if (
-						this.expanded &&
-						this.children &&
-						this.children.length
-					) {
-						sib = this.children[0];
-					} else {
-						parents = this.getParentList(false, true);
-						for (i = parents.length - 1; i >= 0; i--) {
-							sib = parents[i].getNextSibling();
-							// #359: skip hidden sibling nodes, preventing a _goto() recursion
-							while (sib && !$(sib.span).is(":visible")) {
-								sib = sib.getNextSibling();
-							}
-							if (sib) {
-								break;
-							}
-						}
+						return this.setExpanded();
 					}
-					res = _goto(sib);
 					break;
-				default:
-					handled = false;
 			}
-			return res || _getResolvedPromise();
+			// Otherwise activate or focus the related node
+			node = this.findRelatedNode(where);
+			if (node) {
+				// setFocus/setActive will scroll later (if autoScroll is specified)
+				try {
+					node.makeVisible({ scrollIntoView: false });
+				} catch (e) {} // #272
+				if (activate === false) {
+					return node.setFocus();
+				}
+				return node.setActive();
+			}
+			this.warn("Could not find related node '" + where + "'.");
+			return _getResolvedPromise();
 		},
 		/**
 		 * Remove this node (not allowed for system root).
@@ -1954,7 +1958,7 @@
 			var res,
 				parent = this.parent,
 				pos = $.inArray(this, parent.children),
-				that = this;
+				self = this;
 
 			_assert(
 				this.isPagingNode(),
@@ -1964,7 +1968,7 @@
 			res = this.tree._callHook("nodeLoadChildren", this, source);
 			res.done(function(data) {
 				// New nodes are currently children of `this`.
-				var children = that.children;
+				var children = self.children;
 				// Prepend newly loaded child nodes to `this`
 				// Move new children after self
 				for (i = 0; i < children.length; i++) {
@@ -1976,14 +1980,14 @@
 				);
 
 				// Remove self
-				that.children = null;
-				that.remove();
+				self.children = null;
+				self.remove();
 				// Redraw new nodes
 				parent.render();
 				// TODO: set node.partload = false if this was tha last paging node?
 				// parent.addPagingNode(false);
 			}).fail(function() {
-				that.setExpanded();
+				self.setExpanded();
 			});
 			return res;
 			// $.error("Not implemented: replaceWith()");
@@ -2041,7 +2045,9 @@
 		 */
 		scrollIntoView: function(effects, options) {
 			if (options !== undefined && _isNode(options)) {
-				throw "scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead.";
+				throw Error(
+					"scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead."
+				);
 			}
 			// The scroll parent is typically the plain tree's <UL> container.
 			// For ext-table, we choose the nearest parent that has `position: relative`
@@ -2080,7 +2086,7 @@
 				$scrollParent[0] === document ||
 				$scrollParent[0] === document.body
 			) {
-				// `document` may returned by $().scrollParent(), if nothing is found,
+				// `document` may be returned by $().scrollParent(), if nothing is found,
 				// but would not work: (see #894)
 				this.debug(
 					"scrollIntoView(): normalizing scrollParent to 'window':",
@@ -2088,13 +2094,13 @@
 				);
 				$scrollParent = $(window);
 			}
-
+			// eslint-disable-next-line one-var
 			var topNodeY,
 				nodeY,
 				horzScrollbarHeight,
 				containerOffsetTop,
 				dfd = new $.Deferred(),
-				that = this,
+				self = this,
 				nodeHeight = $(this.span).height(),
 				topOfs = opts.scrollOfs.top || 0,
 				bottomOfs = opts.scrollOfs.bottom || 0,
@@ -2107,7 +2113,7 @@
 
 			// this.debug("scrollIntoView(), scrollTop=" + scrollTop, opts.scrollOfs);
 			//		_assert($(this.span).is(":visible"), "scrollIntoView node is invisible"); // otherwise we cannot calc offsets
-			if (!$(this.span).is(":visible")) {
+			if (!this.isVisible()) {
 				// We cannot calc offsets for hidden elements
 				this.warn("scrollIntoView(): node is invisible.");
 				return _getResolvedPromise();
@@ -2124,11 +2130,9 @@
 					"scrollParent should be a simple element or `window`, not document or body."
 				);
 
-				(containerOffsetTop = $scrollParent.offset().top),
-					(nodeY =
-						$(this.span).offset().top -
-						containerOffsetTop +
-						scrollTop); // relative to scroll parent
+				containerOffsetTop = $scrollParent.offset().top;
+				nodeY =
+					$(this.span).offset().top - containerOffsetTop + scrollTop; // relative to scroll parent
 				topNodeY = topNode
 					? $(topNode.span).offset().top -
 					  containerOffsetTop +
@@ -2156,7 +2160,7 @@
 				// outside the upper border
 				if (topNode) {
 					_assert(
-						topNode.isRootNode() || $(topNode.span).is(":visible"),
+						topNode.isRootNode() || topNode.isVisible(),
 						"topNode must be visible"
 					);
 					if (topNodeY < newScrollTop) {
@@ -2166,11 +2170,13 @@
 				}
 			}
 
-			if (newScrollTop !== null) {
+			if (newScrollTop === null) {
+				dfd.resolveWith(this);
+			} else {
 				// this.debug("    scrollIntoView(), SET newScrollTop=" + newScrollTop);
 				if (opts.effects) {
 					opts.effects.complete = function() {
-						dfd.resolveWith(that);
+						dfd.resolveWith(self);
 					};
 					$animateTarget.stop(true).animate(
 						{
@@ -2182,8 +2188,6 @@
 					$animateTarget[0].scrollTop = newScrollTop;
 					dfd.resolveWith(this);
 				}
-			} else {
-				dfd.resolveWith(this);
 			}
 			return dfd.promise();
 		},
@@ -2261,6 +2265,8 @@
 				function(a, b) {
 					var x = a.title.toLowerCase(),
 						y = b.title.toLowerCase();
+
+					// eslint-disable-next-line no-nested-ternary
 					return x === y ? 0 : x > y ? 1 : -1;
 				};
 			cl.sort(cmp);
@@ -2586,6 +2592,7 @@
 	 * @property {string} statusClassPropName Property name of FancytreeNode that contains the element which will receive the status classes.
 	 *     Typically "span", but "tr" for table extension.
 	 * @property {object} types Map for shared type specific meta data, used with node.type attribute. @since 2.27
+	 * @property {object} viewport See ext-vieport. @since v2.31
 	 * @property {object} widget Base widget instance.
 	 */
 	function Fancytree(widget) {
@@ -2593,24 +2600,18 @@
 		this.$div = widget.element;
 		this.options = widget.options;
 		if (this.options) {
-			if (
-				$.isFunction(this.options.lazyload) &&
-				!$.isFunction(this.options.lazyLoad)
-			) {
-				this.options.lazyLoad = function() {
-					FT.warn(
-						"The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."
-					);
-					return widget.options.lazyload.apply(this, arguments);
-				};
+			if (this.options.lazyload !== undefined) {
+				$.error(
+					"The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."
+				);
 			}
-			if ($.isFunction(this.options.loaderror)) {
+			if (this.options.loaderror !== undefined) {
 				$.error(
 					"The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."
 				);
 			}
 			if (this.options.fx !== undefined) {
-				FT.warn(
+				$.error(
 					"The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."
 				);
 			}
@@ -2626,7 +2627,7 @@
 		// allow to init tree.data.foo from <div data-foo=''>
 		this.data = _getElementDataAsDict(this.$div);
 		// TODO: use widget.uuid instead?
-		this._id = $.ui.fancytree._nextId++;
+		this._id = "" + (this.options.treeId || $.ui.fancytree._nextId++);
 		// TODO: use widget.eventNamespace instead?
 		this._ns = ".fancytree-" + this._id; // append for namespaced events
 		this.activeNode = null;
@@ -2639,6 +2640,7 @@
 		this.systemFocusElement = null;
 		this.lastQuicksearchTerm = "";
 		this.lastQuicksearchTime = 0;
+		this.viewport = null; // ext-grid
 
 		this.statusClassPropName = "span";
 		this.ariaPropName = "li";
@@ -2660,6 +2662,7 @@
 
 		// Create root markup
 		$ul = $("<ul>", {
+			id: "ft-id-" + this._id,
 			class: "ui-fancytree fancytree-container fancytree-plain",
 		}).appendTo(this.$div);
 		this.$container = $ul;
@@ -2781,7 +2784,10 @@
 				isMissing = required && this.ext[name] == null,
 				badOrder = !isMissing && before != null && before !== isBefore;
 
-			_assert(thisName && thisName !== name, "invalid or same name");
+			_assert(
+				thisName && thisName !== name,
+				"invalid or same name '" + thisName + "' (require yourself?)"
+			);
 
 			if (isMissing || badOrder) {
 				if (!message) {
@@ -2925,14 +2931,14 @@
 		 * @since 2.19
 		 */
 		enableUpdate: function(flag) {
-			flag = flag !== false; // Confusing use of '!'
-			/*jshint -W018 */ if (!!this._enableUpdate === !!flag) {
+			flag = flag !== false;
+			if (!!this._enableUpdate === !!flag) {
 				return flag;
 			}
-			/*jshint +W018 */
 			this._enableUpdate = flag;
 			if (flag) {
 				this.debug("enableUpdate(true): redraw "); //, this._dirtyRoots);
+				this._callHook("treeStructureChanged", this, "enableUpdate");
 				this.render();
 			} else {
 				// 	this._dirtyRoots = null;
@@ -2940,6 +2946,16 @@
 			}
 			return !flag; // return previous value
 		},
+		/** Write error to browser console if debugLevel >= 1 (prepending tree info)
+		 *
+		 * @param {*} msg string or object or array of such
+		 */
+		error: function(msg) {
+			if (this.options.debugLevel >= 1) {
+				Array.prototype.unshift.call(arguments, this.toString());
+				consoleApply("error", arguments);
+			}
+		},
 		/** Expand (or collapse) all parent nodes.
 		 *
 		 * This convenience method uses `tree.visit()` and `tree.setExpanded()`
@@ -2950,6 +2966,8 @@
 		 * @since 2.30
 		 */
 		expandAll: function(flag, opts) {
+			var prev = this.enableUpdate(false);
+
 			flag = flag !== false;
 			this.visit(function(node) {
 				if (
@@ -2959,6 +2977,7 @@
 					node.setExpanded(flag, opts);
 				}
 			});
+			this.enableUpdate(prev);
 		},
 		/**Find all nodes that matches condition.
 		 *
@@ -2989,78 +3008,119 @@
 		 * @param {FancytreeNode} [startNode] defaults to first node
 		 * @returns {FancytreeNode} matching node or null
 		 */
-		findNextNode: function(match, startNode, visibleOnly) {
+		findNextNode: function(match, startNode) {
+			//, visibleOnly) {
+			var res = null,
+				firstNode = this.getFirstChild();
+
 			match =
 				typeof match === "string"
 					? _makeNodeTitleStartMatcher(match)
 					: match;
-			startNode = startNode || this.getFirstChild();
-
-			var stopNode = null,
-				parentChildren = startNode.parent.children,
-				matchingNode = null,
-				walkVisible = function(parent, idx, fn) {
-					var i,
-						grandParent,
-						parentChildren = parent.children,
-						siblingCount = parentChildren.length,
-						node = parentChildren[idx];
-					// visit node itself
-					if (node && fn(node) === false) {
-						return false;
+			startNode = startNode || firstNode;
+
+			function _checkNode(n) {
+				// console.log("_check " + n)
+				if (match(n)) {
+					res = n;
+				}
+				if (res || n === startNode) {
+					return false;
+				}
+			}
+			this.visitRows(_checkNode, {
+				start: startNode,
+				includeSelf: false,
+			});
+			// Wrap around search
+			if (!res && startNode !== firstNode) {
+				this.visitRows(_checkNode, {
+					start: firstNode,
+					includeSelf: true,
+				});
+			}
+			return res;
+		},
+		/** Find a node relative to another node.
+		 *
+		 * @param {FancytreeNode} node
+		 * @param {number|string} where The keyCode that would normally trigger this move,
+		 *		or a keyword ('down', 'first', 'last', 'left', 'parent', 'right', 'up').
+		 * @param {boolean} [includeHidden=false] Not yet implemented
+		 * @returns {FancytreeNode|null}
+		 * @since v2.31
+		 */
+		findRelatedNode: function(node, where, includeHidden) {
+			var res = null,
+				KC = $.ui.keyCode;
+
+			switch (where) {
+				case "parent":
+				case KC.BACKSPACE:
+					if (node.parent && node.parent.parent) {
+						res = node.parent;
 					}
-					// visit descendants
-					if (node && node.children && node.expanded) {
-						if (walkVisible(node, 0, fn) === false) {
+					break;
+				case "first":
+				case KC.HOME:
+					// First visible node
+					this.visit(function(n) {
+						if (n.isVisible()) {
+							res = n;
 							return false;
 						}
-					}
-					// visit subsequent siblings
-					for (i = idx + 1; i < siblingCount; i++) {
-						if (walkVisible(parent, i, fn) === false) {
-							return false;
+					});
+					break;
+				case "last":
+				case KC.END:
+					this.visit(function(n) {
+						// last visible node
+						if (n.isVisible()) {
+							res = n;
 						}
+					});
+					break;
+				case "left":
+				case KC.LEFT:
+					if (node.expanded) {
+						node.setExpanded(false);
+					} else if (node.parent && node.parent.parent) {
+						res = node.parent;
 					}
-					// visit parent's subsequent siblings
-					grandParent = parent.parent;
-					if (grandParent) {
-						return walkVisible(
-							grandParent,
-							grandParent.children.indexOf(parent) + 1,
-							fn
-						);
-					} else {
-						// wrap-around: restart with first node
-						return walkVisible(parent, 0, fn);
-					}
-				};
-
-			walkVisible(
-				startNode.parent,
-				parentChildren.indexOf(startNode),
-				function(node) {
-					// Stop iteration if we see the start node a second time
-					if (node === stopNode) {
-						return false;
-					}
-					stopNode = stopNode || node;
-					// Ignore nodes hidden by a filter
-					if (!$(node.span).is(":visible")) {
-						node.debug("quicksearch: skipping hidden node");
-						return;
+					break;
+				case "right":
+				case KC.RIGHT:
+					if (!node.expanded && (node.children || node.lazy)) {
+						node.setExpanded();
+						res = node;
+					} else if (node.children && node.children.length) {
+						res = node.children[0];
 					}
-					// Test if we found a match, but search for a second match if this
-					// was the currently active node
-					if (match(node)) {
-						// node.debug("quicksearch match " + node.title, startNode);
-						matchingNode = node;
-						if (matchingNode !== startNode) {
+					break;
+				case "up":
+				case KC.UP:
+					this.visitRows(
+						function(n) {
+							res = n;
 							return false;
-						}
-					}
-				}
-			);
-			return matchingNode;
+						},
+						{ start: node, reverse: true, includeSelf: false }
+					);
+					break;
+				case "down":
+				case KC.DOWN:
+					this.visitRows(
+						function(n) {
+							res = n;
+							return false;
+						},
+						{ start: node, includeSelf: false }
+					);
+					break;
+				default:
+					this.tree.warn("Unknown relation '" + where + "'.");
+			}
+			return res;
 		},
 		// TODO: fromDict
 		/**
@@ -3350,6 +3410,8 @@
 				i,
 				key,
 				node,
+				nodeKey,
+				remain,
 				remainMap,
 				tmpParent,
 				segList,
@@ -3446,25 +3508,27 @@
 			}
 			// remainMap contains parent nodes, each with a list of relative sub-paths.
 			// We start loading all of them now, and pass the the list to each loader.
-			for (var nodeKey in remainMap) {
-				var remain = remainMap[nodeKey];
-				// console.log("for(): remain=", remain, "remainMap=", remainMap);
-				// key = remain.segList.shift();
-				// node = __findChild(remain.parent, key);
-				// if (node == null) {  // #576
-				// 	// Issue #576, refactored for v2.27:
-				// 	// The root cause was, that sometimes the wrong parent was used here
-				// 	// to find the next segment.
-				// 	// Falling back to getNodeByKey() was a hack that no longer works if a custom
-				// 	// matcher is used, because we cannot assume that a single segment-key is unique
-				// 	// throughout the tree.
-				// 	self.error("loadKeyPath: error loading child by key '" + key + "' (parent: " + target.parent + ")", target);
-				// 	// 	node = self.getNodeByKey(key);
-				// 	continue;
-				// }
-				subDfd = new $.Deferred();
-				deferredList.push(subDfd);
-				__lazyload(subDfd, remain.parent, remain.pathSegList);
+			for (nodeKey in remainMap) {
+				if (remainMap.hasOwnProperty(nodeKey)) {
+					remain = remainMap[nodeKey];
+					// console.log("for(): remain=", remain, "remainMap=", remainMap);
+					// key = remain.segList.shift();
+					// node = __findChild(remain.parent, key);
+					// if (node == null) {  // #576
+					// 	// Issue #576, refactored for v2.27:
+					// 	// The root cause was, that sometimes the wrong parent was used here
+					// 	// to find the next segment.
+					// 	// Falling back to getNodeByKey() was a hack that no longer works if a custom
+					// 	// matcher is used, because we cannot assume that a single segment-key is unique
+					// 	// throughout the tree.
+					// 	self.error("loadKeyPath: error loading child by key '" + key + "' (parent: " + target.parent + ")", target);
+					// 	// 	node = self.getNodeByKey(key);
+					// 	continue;
+					// }
+					subDfd = new $.Deferred();
+					deferredList.push(subDfd);
+					__lazyload(subDfd, remain.parent, remain.pathSegList);
+				}
 			}
 			// Return a promise that is resolved, when ALL paths were loaded
 			return $.when.apply($, deferredList).promise();
@@ -3590,14 +3654,19 @@
 		 * @param {object} [options]
 		 *     Defaults:
 		 *     {start: First top node, reverse: false, includeSelf: true, includeHidden: false}
-		 * @returns {boolean}
+		 * @returns {boolean} false if iteration was cancelled
 		 * @since 2.28
 		 */
 		visitRows: function(fn, opts) {
+			if (!this.rootNode.children) {
+				return false;
+			}
 			if (opts && opts.reverse) {
 				delete opts.reverse;
 				return this._visitRowsUp(fn, opts);
 			}
+			opts = opts || {};
+
 			var i,
 				nextIdx,
 				parent,
@@ -3606,6 +3675,7 @@
 				siblingOfs = 0,
 				skipFirstNode = opts.includeSelf === false,
 				includeHidden = !!opts.includeHidden,
+				checkFilter = !includeHidden && this.enableFilter,
 				node = opts.start || this.rootNode.children[0];
 
 			parent = node.parent;
@@ -3616,6 +3686,9 @@
 
 				for (i = nextIdx; i < siblings.length; i++) {
 					node = siblings[i];
+					if (checkFilter && !node.match && !node.subMatchCount) {
+						continue;
+					}
 					if (!skipFirstNode && fn(node) === false) {
 						return false;
 					}
@@ -3630,6 +3703,9 @@
 						// scoped variable may lead to confusing semantics:
 						/*jshint -W083 */
 						res = node.visit(function(n) {
+							if (checkFilter && !n.match && !n.subMatchCount) {
+								return "skip";
+							}
 							if (fn(n) === false) {
 								return false;
 							}
@@ -3666,6 +3742,9 @@
 				if (children[0] === node) {
 					// If this is already the first sibling, goto parent
 					node = parent;
+					if (!node.parent) {
+						break; // first node of the tree
+					}
 					children = parent.children;
 				} else {
 					// Otherwise, goto prev. sibling
@@ -3673,6 +3752,8 @@
 					node = children[idx - 1];
 					// If the prev. sibling has children, follow down to last descendant
 					while (
+						// See: https://github.com/eslint/eslint/issues/11302
+						// eslint-disable-next-line no-unmodified-loop-condition
 						(includeHidden || node.expanded) &&
 						node.children &&
 						node.children.length
@@ -3683,7 +3764,7 @@
 					}
 				}
 				// Skip invisible
-				if (!includeHidden && !$(node.span).is(":visible")) {
+				if (!includeHidden && !node.isVisible()) {
 					continue;
 				}
 				if (fn(node) === false) {
@@ -3835,7 +3916,7 @@
 				// TODO: return promise?
 				var matchNode,
 					stamp,
-					res,
+					_res,
 					focusNode,
 					event = ctx.originalEvent,
 					node = ctx.node,
@@ -3926,7 +4007,7 @@
 					case "right":
 					case "up":
 					case "down":
-						res = node.navigate(event.which, activate);
+						_res = node.navigate(event.which, activate);
 						break;
 					default:
 						handled = false;
@@ -3957,6 +4038,7 @@
 				var ajax,
 					delay,
 					dfd,
+					res,
 					tree = ctx.tree,
 					node = ctx.node,
 					requestId = Date.now();
@@ -4108,10 +4190,7 @@
 					});
 				}
 				// #383: accept and convert ECMAScript 6 Promise
-				if (
-					$.isFunction(source.then) &&
-					$.isFunction(source["catch"])
-				) {
+				if ($.isFunction(source.then) && $.isFunction(source.catch)) {
 					dfd = source;
 					source = new $.Deferred();
 					dfd.then(
@@ -4186,7 +4265,7 @@
 				} else {
 					if (ctx.options.postProcess) {
 						// #792: Call postProcess for non-deferred source
-						var res = tree._triggerNodeEvent(
+						res = tree._triggerNodeEvent(
 							"postProcess",
 							ctx,
 							ctx.originalEvent,
@@ -4340,7 +4419,7 @@
 			 * @param {EventData} ctx
 			 */
 			nodeRemoveChildren: function(ctx) {
-				var subCtx,
+				var //subCtx,
 					tree = ctx.tree,
 					node = ctx.node,
 					children = node.children;
@@ -4360,7 +4439,7 @@
 				this.nodeRemoveChildMarkup(ctx);
 				// Unlink children to support GC
 				// TODO: also delete this.children (not possible using visit())
-				subCtx = $.extend({}, ctx);
+				// subCtx = $.extend({}, ctx);
 				node.triggerModifyChild("remove", null);
 				node.visit(function(n) {
 					n.parent = null;
@@ -4483,8 +4562,11 @@
 					}
 					// Create <li><span /> </li>
 					// node.debug("render...");
-					if (!node.li) {
-						//	            node.debug("render... really");
+					if (node.li) {
+						// this.nodeRenderTitle(ctx);
+						this.nodeRenderStatus(ctx);
+					} else {
+						// node.debug("render... really");
 						firstTime = true;
 						node.li = document.createElement("li");
 						node.li.ftnode = node;
@@ -4510,9 +4592,6 @@
 								ctx
 							);
 						}
-					} else {
-						// this.nodeRenderTitle(ctx);
-						this.nodeRenderStatus(ctx);
 					}
 					// Allow tweaking after node state was rendered
 					if (opts.renderNode) {
@@ -4569,14 +4648,14 @@
 						for (i = 0, l = children.length - 1; i < l; i++) {
 							childNode1 = children[i];
 							childNode2 = childLI.ftnode;
-							if (childNode1 !== childNode2) {
+							if (childNode1 === childNode2) {
+								childLI = childLI.nextSibling;
+							} else {
 								// node.debug("_fixOrder: mismatch at index " + i + ": " + childNode1 + " != " + childNode2);
 								node.ul.insertBefore(
 									childNode1.li,
 									childNode2.li
 								);
-							} else {
-								childLI = childLI.nextSibling;
 							}
 						}
 					}
@@ -4861,10 +4940,10 @@
 					cnList.push(cn.expanded);
 				}
 				if (aria) {
-					if (hasChildren !== false) {
-						$ariaElem.attr("aria-expanded", Boolean(node.expanded));
-					} else {
+					if (hasChildren === false) {
 						$ariaElem.removeAttr("aria-expanded");
+					} else {
+						$ariaElem.attr("aria-expanded", Boolean(node.expanded));
 					}
 				}
 				if (node.folder) {
@@ -5134,6 +5213,11 @@
 						effect = opts.toggleEffect;
 
 					node.expanded = flag;
+					tree._callHook(
+						"treeStructureChanged",
+						ctx,
+						flag ? "expand" : "collapse"
+					);
 					// Create required markup, but make sure the top UL is hidden, so we
 					// can animate later
 					tree._callHook("nodeRender", ctx, false, false, true);
@@ -5158,7 +5242,20 @@
 							// See #716, #717
 							$(node.li).addClass(cn.animating); // #717
 
-							if (!$.isFunction($(node.ul)[effect.effect])) {
+							if ($.isFunction($(node.ul)[effect.effect])) {
+								tree.debug(
+									"use jquery." + effect.effect + " method"
+								);
+								$(node.ul)[effect.effect]({
+									duration: effect.duration,
+									always: function() {
+										// node.debug("fancytree-animating end: " + node.li.className);
+										$(this).removeClass(cn.animating); // #716
+										$(node.li).removeClass(cn.animating); // #717
+										callback();
+									},
+								});
+							} else {
 								// The UI toggle() effect works with the ext-wide extension,
 								// while jQuery.animate() has problems when the title span
 								// has positon: absolute.
@@ -5187,22 +5284,7 @@
 										callback();
 									}
 								);
-							} else {
-								tree.debug(
-									"use jquery." + effect.effect + " method"
-								);
-
-								$(node.ul)[effect.effect]({
-									duration: effect.duration,
-									always: function() {
-										// node.debug("fancytree-animating end: " + node.li.className);
-										$(this).removeClass(cn.animating); // #716
-										$(node.li).removeClass(cn.animating); // #717
-										callback();
-									},
-								});
 							}
-
 							return;
 						}
 					}
@@ -5299,18 +5381,6 @@
 								.find(".fancytree-title")
 								.focus();
 						}
-					} else {
-						// We cannot set KB focus to a node, so use the tree container
-						// #563, #570: IE scrolls on every call to .focus(), if the container
-						// is partially outside the viewport. So do it only, when absolutely
-						// neccessary:
-						if (
-							$(document.activeElement).closest(
-								".fancytree-container"
-							).length === 0
-						) {
-							$(tree.$container).focus();
-						}
 					}
 					if (opts.aria) {
 						// Set active descendant to node's span ID (create one, if needed)
@@ -5324,6 +5394,20 @@
 					}
 					// $(node.span).find(".fancytree-title").focus();
 					this._triggerNodeEvent("focus", ctx);
+
+					// determine if we have focus on or inside tree container
+					var hasFancytreeFocus =
+						document.activeElement === tree.$container.get(0) ||
+						$(document.activeElement, tree.$container).length >= 1;
+
+					if (!hasFancytreeFocus) {
+						// We cannot set KB focus to a node, so use the tree container
+						// #563, #570: IE scrolls on every call to .focus(), if the container
+						// is partially outside the viewport. So do it only, when absolutely
+						// necessary.
+						$(tree.$container).focus();
+					}
+
 					// if( opts.autoActivate ){
 					// 	tree.nodeSetActive(ctx, true);
 					// }
@@ -5367,7 +5451,7 @@
 				node._lastSelectIntent = flag; // Confusing use of '!'
 
 				// Nothing to do?
-				/*jshint -W018 */ if (!!node.selected === flag) {
+				if (!!node.selected === flag) {
 					if (opts.selectMode === 3 && node.partsel && !flag) {
 						// If propagation prevented selecting this node last time, we still
 						// want to allow to apply setSelected(false) now
@@ -5375,7 +5459,6 @@
 						return flag;
 					}
 				}
-				/*jshint +W018 */
 
 				if (
 					!noEvents &&
@@ -5444,6 +5527,11 @@
 						} else {
 							node.children.shift();
 						}
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"clearStatusNode"
+						);
 					}
 				}
 				function _setStatusNode(data, type) {
@@ -5457,6 +5545,11 @@
 						tree._callHook("nodeRenderTitle", firstChild);
 					} else {
 						node._setChildren([data]);
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"setStatusNode"
+						);
 						node.children[0].statusNodeType = type;
 						tree.render();
 					}
@@ -5560,6 +5653,7 @@
 				tree.$div.find(">ul.fancytree-container").empty();
 				// TODO: call destructors and remove reference loops
 				tree.rootNode.children = null;
+				tree._callHook("treeStructureChanged", ctx, "clear");
 			},
 			/** Widget was created (called only once, even it re-initialized).
 			 * @param {EventData} ctx
@@ -5570,8 +5664,9 @@
 			 */
 			treeDestroy: function(ctx) {
 				this.$div.find(">ul.fancytree-container").remove();
-				this.$source &&
+				if (this.$source) {
 					this.$source.removeClass("fancytree-helper-hidden");
+				}
 			},
 			/** Widget was (re-)initialized.
 			 * @param {EventData} ctx
@@ -5595,6 +5690,9 @@
 					}
 				});
 
+				if (opts.checkboxAutoHide) {
+					tree.$container.addClass("fancytree-checkbox-auto-hide");
+				}
 				if (opts.rtl) {
 					tree.$container
 						.attr("DIR", "RTL")
@@ -5635,7 +5733,7 @@
 					type = $container.data("type") || "html";
 					switch (type) {
 						case "html":
-							$ul = $container.find(">ul:first");
+							$ul = $container.find(">ul").first();
 							$ul.addClass(
 								"ui-fancytree-source fancytree-helper-hidden"
 							);
@@ -5684,9 +5782,17 @@
 					$.error("Not implemented");
 				}
 
+				// TODO: might be useful? Let's wait for a use case...
+				// tree._triggerTreeEvent("beforeInitLoad", null);
+
 				// Trigger fancytreeinit after nodes have been loaded
 				dfd = this.nodeLoadChildren(rootCtx, source)
 					.done(function() {
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"loadChildren"
+						);
 						tree.render();
 						if (ctx.options.selectMode === 3) {
 							tree.rootNode.fixSelection3FromEndNodes();
@@ -5707,7 +5813,13 @@
 			 * @param {boolean} add
 			 * @param {FancytreeNode} node
 			 */
-			treeRegisterNode: function(ctx, add, node) {},
+			treeRegisterNode: function(ctx, add, node) {
+				ctx.tree._callHook(
+					"treeStructureChanged",
+					ctx,
+					add ? "addNode" : "removeNode"
+				);
+			},
 			/** Widget got focus.
 			 * @param {EventData} ctx
 			 * @param {boolean} [flag=true]
@@ -5734,7 +5846,9 @@
 						// #712: Use last mousedowned node ('click' event fires after focusin)
 						targetNode =
 							this._lastMousedownNode || this.getFirstChild();
-						targetNode && targetNode.setFocus();
+						if (targetNode) {
+							targetNode.setFocus();
+						}
 					}
 				}
 			},
@@ -5765,6 +5879,12 @@
 						callCreate = true;
 						callRender = true;
 						break;
+					case "checkboxAutoHide":
+						tree.$container.toggleClass(
+							"fancytree-checkbox-auto-hide",
+							!!value
+						);
+						break;
 					case "escapeTitles":
 					case "tooltip":
 						callRender = true;
@@ -5816,6 +5936,10 @@
 					tree.render(true, false); // force, not-deep
 				}
 			},
+			/** A Node was added, removed, moved, or it's visibility changed.
+			 * @param {EventData} ctx
+			 */
+			treeStructureChanged: function(ctx, type) {},
 		}
 	);
 
@@ -5856,7 +5980,7 @@
 				autoScroll: false,
 				checkbox: false,
 				clickFolderMode: 4,
-				debugLevel: null, // 0..4 (null: use global setting $.ui.fancytree.debugInfo)
+				debugLevel: null, // 0..4 (null: use global setting $.ui.fancytree.debugLevel)
 				disabled: false, // TODO: required anymore?
 				enableAspx: true,
 				escapeTitles: false,
@@ -5888,6 +6012,7 @@
 				tabindex: "0",
 				titlesTabbable: false,
 				tooltip: false,
+				treeId: null,
 				_classNames: {
 					node: "fancytree-node",
 					folder: "fancytree-folder",
@@ -5921,7 +6046,7 @@
 				this.$source =
 					this.source || this.element.data("type") === "json"
 						? this.element
-						: this.element.find(">ul:first");
+						: this.element.find(">ul").first();
 				// Subclass Fancytree instance with all enabled extensions
 				var extension,
 					extName,
@@ -5972,15 +6097,15 @@
 				//
 				if (opts.icons !== undefined) {
 					// 2015-11-16
-					if (opts.icon !== true) {
-						$.error(
-							"'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"
-						);
-					} else {
+					if (opts.icon === true) {
 						this.tree.warn(
 							"'icons' tree option is deprecated since v2.14.0: use 'icon' instead"
 						);
 						opts.icon = opts.icons;
+					} else {
+						$.error(
+							"'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"
+						);
 					}
 				}
 				if (opts.iconClass !== undefined) {
@@ -6051,7 +6176,7 @@
 			},
 			/* Add mouse and kyboard handlers to the container */
 			_bind: function() {
-				var that = this,
+				var self = this,
 					opts = this.options,
 					tree = this.tree,
 					ns = tree._ns;
@@ -6162,7 +6287,7 @@
 					})
 					.on("mousedown" + ns, function(event) {
 						var et = FT.getEventTarget(event);
-						// that.tree.debug("event(" + event.type + "): node: ", et.node);
+						// self.tree.debug("event(" + event.type + "): node: ", et.node);
 						// #712: Store the clicked node, so we can use it when we get a focusin event
 						//       ('click' event fires after focusin)
 						// tree.debug("event(" + event.type + "): node: ", et.node);
@@ -6181,15 +6306,15 @@
 						var ctx,
 							et = FT.getEventTarget(event),
 							node = et.node,
-							tree = that.tree,
+							tree = self.tree,
 							prevPhase = tree.phase;
 
-						// that.tree.debug("event(" + event.type + "): node: ", node);
+						// self.tree.debug("event(" + event.type + "): node: ", node);
 						if (!node) {
 							return true; // Allow bubbling of other events
 						}
 						ctx = tree._makeHookContext(node, event);
-						// that.tree.debug("event(" + event.type + "): node: ", node);
+						// self.tree.debug("event(" + event.type + "): node: ", node);
 						try {
 							tree.phase = "userEvent";
 							switch (event.type) {
@@ -6272,7 +6397,7 @@
 		/** @lends Fancytree_Static# */
 		{
 			/** @type {string} */
-			version: "2.30.2", // Set to semver by 'grunt release'
+			version: "2.31.0", // Set to semver by 'grunt release'
 			/** @type {string} */
 			buildType: "production", // Set to 'production' by 'grunt build'
 			/** @type {int} */
@@ -6333,9 +6458,11 @@
 				return function() {
 					var args = arguments;
 					ctx = ctx || this;
+					// eslint-disable-next-line no-unused-expressions
 					invokeAsap && !timer && fn.apply(ctx, args);
 					clearTimeout(timer);
 					timer = setTimeout(function() {
+						// eslint-disable-next-line no-unused-expressions
 						invokeAsap || fn.apply(ctx, args);
 						timer = null;
 					}, timeout);
@@ -6345,16 +6472,17 @@
 			 * @param {string} msg
 			 */
 			debug: function(msg) {
-				/*jshint expr:true */
-				$.ui.fancytree.debugLevel >= 4 &&
+				if ($.ui.fancytree.debugLevel >= 4) {
 					consoleApply("log", arguments);
+				}
 			},
 			/** Write error message to console if debugLevel >= 1.
 			 * @param {string} msg
 			 */
 			error: function(msg) {
-				$.ui.fancytree.debugLevel >= 1 &&
+				if ($.ui.fancytree.debugLevel >= 1) {
 					consoleApply("error", arguments);
+				}
 			},
 			/** Convert &lt;, &gt;, &amp;, &quot;, &#39;, &#x2F; to the equivalent entities.
 			 *
@@ -6492,14 +6620,17 @@
 			 * @param {Element | jQueryObject | Event | integer | string} [el]
 			 * @returns {Fancytree} matching tree or null
 			 * @example
-			 * $.ui.fancytree.getTree();   // Get first Fancytree instance on page
+			 * $.ui.fancytree.getTree();  // Get first Fancytree instance on page
 			 * $.ui.fancytree.getTree(1);  // Get second Fancytree instance on page
-			 * $.ui.fancytree.getTree("#tree"); // Get tree for this matching element
+			 * $.ui.fancytree.getTree(event);  // Get tree for this mouse- or keyboard event
+			 * $.ui.fancytree.getTree("foo");  // Get tree for this `opts.treeId`
+			 * $.ui.fancytree.getTree("#tree");  // Get tree for this matching element
 			 *
 			 * @since 2.13
 			 */
 			getTree: function(el) {
-				var widget;
+				var widget,
+					orgEl = el;
 
 				if (el instanceof Fancytree) {
 					return el; // el already was a Fancytree
@@ -6510,7 +6641,11 @@
 				if (typeof el === "number") {
 					el = $(".fancytree-container").eq(el); // el was an integer: return nth instance
 				} else if (typeof el === "string") {
-					el = $(el).eq(0); // el was a selector: use first match
+					// `el` may be a treeId or a selector:
+					el = $("#ft-id-" + orgEl).eq(0);
+					if (!el.length) {
+						el = $(orgEl).eq(0); // el was a selector: use first match
+					}
 				} else if (el instanceof $) {
 					el = el.eq(0); // el was a jQuery object: use the first DOM element
 				} else if (el.originalEvent !== undefined) {
@@ -6571,7 +6706,7 @@
 						res = nodeOpt;
 					}
 				} else {
-					res = nodeOpt != null ? nodeOpt : treeOpt;
+					res = nodeOpt == null ? treeOpt : nodeOpt;
 				}
 				if (res == null) {
 					res = defaultValue; // no option set at all: return default
@@ -6652,13 +6787,13 @@
 
 				if (et === "click" || et === "dblclick") {
 					s.push(MOUSE_BUTTONS[event.button] + et);
-				} else {
-					if (!IGNORE_KEYCODES[which]) {
-						s.push(
-							SPECIAL_KEYCODES[which] ||
-								String.fromCharCode(which).toLowerCase()
-						);
-					}
+				} else if (et === "wheel") {
+					s.push(et);
+				} else if (!IGNORE_KEYCODES[which]) {
+					s.push(
+						SPECIAL_KEYCODES[which] ||
+							String.fromCharCode(which).toLowerCase()
+					);
 				}
 				return s.join("+");
 			},
@@ -6666,9 +6801,9 @@
 			 * @param {string} msg
 			 */
 			info: function(msg) {
-				/*jshint expr:true */
-				$.ui.fancytree.debugLevel >= 3 &&
+				if ($.ui.fancytree.debugLevel >= 3) {
 					consoleApply("info", arguments);
+				}
 			},
 			/* @deprecated: use eventToString(event) instead.
 			 */
@@ -6717,8 +6852,6 @@
 			 * @returns {NodeData[]}
 			 */
 			parseHtml: function($ul) {
-				// TODO: understand this:
-				/*jshint validthis:true */
 				var classes,
 					className,
 					extraClasses,
@@ -6734,8 +6867,8 @@
 					var allData,
 						lowerCaseAttr,
 						$li = $(this),
-						$liSpan = $li.find(">span:first", this),
-						$liA = $liSpan.length ? null : $li.find(">a:first"),
+						$liSpan = $li.find(">span", this).first(),
+						$liA = $liSpan.length ? null : $li.find(">a").first(),
 						d = { tooltip: null, data: {} };
 
 					if ($liSpan.length) {
@@ -6795,8 +6928,7 @@
 							if (allData.hasOwnProperty(lowerCaseAttr)) {
 								allData[
 									NODE_ATTR_LOWERCASE_MAP[lowerCaseAttr]
-								] =
-									allData[lowerCaseAttr];
+								] = allData[lowerCaseAttr];
 								delete allData[lowerCaseAttr];
 							}
 						}
@@ -6813,7 +6945,7 @@
 						$.extend(d.data, allData);
 					}
 					// Recursive reading of child nodes, if LI tag contains an UL tag
-					$ul = $li.find(">ul:first");
+					$ul = $li.find(">ul").first();
 					if ($ul.length) {
 						d.children = $.ui.fancytree.parseHtml($ul);
 					} else {
@@ -6855,8 +6987,9 @@
 			 * @param {string} msg
 			 */
 			warn: function(msg) {
-				$.ui.fancytree.debugLevel >= 2 &&
+				if ($.ui.fancytree.debugLevel >= 2) {
 					consoleApply("warn", arguments);
+				}
 			},
 		}
 	);
@@ -6868,7 +7001,7 @@
 // Extending Fancytree
 // ===================
 //
-// See also the [live demo](http://wwwendt.de/tech/fancytree/demo/sample-ext-childcounter.html) of this code.
+// See also the [live demo](https://wwWendt.de/tech/fancytree/demo/sample-ext-childcounter.html) of this code.
 //
 // Every extension should have a comment header containing some information
 // about the author, copyright and licensing. Also a pointer to the latest
@@ -6881,13 +7014,13 @@
  * Add a child counter bubble to tree nodes.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 // To keep the global namespace clean, we wrap everything in a closure.
@@ -6912,10 +7045,10 @@
 	"use strict";
 
 	// The [coding guidelines](http://contribute.jquery.org/style-guide/js/)
-	// require jshint compliance.
+	// require jshint /eslint compliance.
 	// But for this sample, we want to allow unused variables for demonstration purpose.
 
-	/*jshint unused:false */
+	/*eslint-disable no-unused-vars */
 
 	// Adding methods
 	// --------------
@@ -6986,7 +7119,7 @@
 	// Register a Fancytree extension
 	// ------------------------------
 	// A full blown extension, extension is available for all trees and can be
-	// enabled like so (see also the [live demo](http://wwwendt.de/tech/fancytree/demo/sample-ext-childcounter.html)):
+	// enabled like so (see also the [live demo](https://wwWendt.de/tech/fancytree/demo/sample-ext-childcounter.html)):
 	//
 	//    <script src="../src/jquery.fancytree.js"></script>
 	//    <script src="../src/jquery.fancytree.childcounter.js"></script>
@@ -7006,7 +7139,7 @@
 		// Every extension must be registered by a unique name.
 		name: "childcounter",
 		// Version information should be compliant with [semver](http://semver.org)
-		version: "2.30.2",
+		version: "2.31.0",
 
 		// Extension specific options and their defaults.
 		// This options will be available as `tree.options.childcounter.hideExpanded`
@@ -7033,13 +7166,13 @@
 		// **Override virtual methods for this extension.**
 		//
 		// Fancytree implements a number of 'hook methods', prefixed by 'node...' or 'tree...'.
-		// with a `ctx` argument (see [EventData](http://www.wwwendt.de/tech/fancytree/doc/jsdoc/global.html#EventData)
+		// with a `ctx` argument (see [EventData](https://wwWendt.de/tech/fancytree/doc/jsdoc/global.html#EventData)
 		// for details) and an extended calling context:<br>
 		// `this`       : the Fancytree instance<br>
 		// `this._local`: the namespace that contains extension attributes and private methods (same as this.ext.EXTNAME)<br>
 		// `this._super`: the virtual function that was overridden (member of previous extension or Fancytree)
 		//
-		// See also the [complete list of available hook functions](http://www.wwwendt.de/tech/fancytree/doc/jsdoc/Fancytree_Hooks.html).
+		// See also the [complete list of available hook functions](https://wwWendt.de/tech/fancytree/doc/jsdoc/Fancytree_Hooks.html).
 
 		/* Init */
 		// `treeInit` is triggered when a tree is initalized. We can set up classes or
@@ -7111,13 +7244,13 @@
  * Support faster lookup of nodes by key and shared ref-ids.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -7173,7 +7306,7 @@
 	 * @return {number} 32-bit positive integer hash
 	 */
 	function hashMurmur3(key, asString, seed) {
-		/*jshint bitwise:false */
+		/*eslint-disable no-bitwise */
 		var h1b,
 			k1,
 			remainder = key.length & 3,
@@ -7213,11 +7346,12 @@
 		k1 = 0;
 
 		switch (remainder) {
-			/*jshint -W086:true */
 			case 3:
 				k1 ^= (key.charCodeAt(i + 2) & 0xff) << 16;
+			// fall through
 			case 2:
 				k1 ^= (key.charCodeAt(i + 1) & 0xff) << 8;
+			// fall through
 			case 1:
 				k1 ^= key.charCodeAt(i) & 0xff;
 
@@ -7252,19 +7386,26 @@
 			return ("0000000" + (h1 >>> 0).toString(16)).substr(-8);
 		}
 		return h1 >>> 0;
+		/*eslint-enable no-bitwise */
 	}
 
 	/*
- * Return a unique key for node by calculating the hash of the parents refKey-list.
- */
+	 * Return a unique key for node by calculating the hash of the parents refKey-list.
+	 */
 	function calcUniqueKey(node) {
 		var key,
+			h1,
 			path = $.map(node.getParentList(false, true), function(e) {
 				return e.refKey || e.key;
 			});
+
 		path = path.join("/");
-		key = "id_" + hashMurmur3(path, true);
-		// node.debug(path + " -> " + key);
+		// 32-bit has a high probability of collisions, so we pump up to 64-bit
+		// https://security.stackexchange.com/q/209882/207588
+
+		h1 = hashMurmur3(path, true);
+		key = "id_" + h1 + hashMurmur3(h1 + path, true);
+
 		return key;
 	}
 
@@ -7467,7 +7608,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "clones",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			highlightActiveClones: true, // set 'fancytree-active-clone' on active clones and all peers
@@ -7511,12 +7652,21 @@
 
 			if (add) {
 				if (keyMap[node.key] != null) {
-					$.error(
-						"clones.treeRegisterNode: node.key already exists: " +
-							node
-					);
+					var other = keyMap[node.key],
+						msg =
+							"clones.treeRegisterNode: duplicate key '" +
+							node.key +
+							"': /" +
+							node.getPath(true) +
+							" => " +
+							other.getPath(true);
+					// Sometimes this exception is not visible in the console,
+					// so we also write it:
+					tree.error(msg);
+					$.error(msg);
 				}
 				keyMap[key] = node;
+
 				if (refKey) {
 					refList = refMap[refKey];
 					if (refList) {
@@ -7614,13 +7764,13 @@
  * Drag-and-drop support (jQuery UI draggable/droppable).
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -7656,6 +7806,7 @@
 
 	/* Convert number to string and prepend +/-; return empty string for 0.*/
 	function offsetString(n) {
+		// eslint-disable-next-line no-nested-ternary
 		return n === 0 ? "" : n > 0 ? "+" + n : "" + n;
 	}
 
@@ -7968,7 +8119,7 @@
 
 	$.ui.fancytree.registerExtension({
 		name: "dnd",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			// Make tree nodes accept draggables
@@ -8116,21 +8267,21 @@
 		},
 
 		/*
-	 * Handles drag'n'drop functionality.
-	 *
-	 * A standard jQuery drag-and-drop process may generate these calls:
-	 *
-	 * start:
-	 *     _onDragEvent("start", sourceNode, null, event, ui, draggable);
-	 * drag:
-	 *     _onDragEvent("leave", prevTargetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("over", targetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("enter", targetNode, sourceNode, event, ui, draggable);
-	 * stop:
-	 *     _onDragEvent("drop", targetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("leave", targetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("stop", sourceNode, null, event, ui, draggable);
-	 */
+		 * Handles drag'n'drop functionality.
+		 *
+		 * A standard jQuery drag-and-drop process may generate these calls:
+		 *
+		 * start:
+		 *     _onDragEvent("start", sourceNode, null, event, ui, draggable);
+		 * drag:
+		 *     _onDragEvent("leave", prevTargetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("over", targetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("enter", targetNode, sourceNode, event, ui, draggable);
+		 * stop:
+		 *     _onDragEvent("drop", targetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("leave", targetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("stop", sourceNode, null, event, ui, draggable);
+		 */
 		_onDragEvent: function(
 			eventName,
 			node,
@@ -8159,7 +8310,7 @@
 					draggable: draggable,
 				}),
 				res = null,
-				that = this,
+				self = this,
 				$nodeTag = $(node.span);
 
 			if (dnd.smartRevert) {
@@ -8208,9 +8359,9 @@
 									event.type === "keydown" &&
 									event.which === $.ui.keyCode.ESCAPE
 								) {
-									that.ext.dnd._cancelDrag();
+									self.ext.dnd._cancelDrag();
 								} else if (event.type === "mousedown") {
-									that.ext.dnd._cancelDrag();
+									self.ext.dnd._cancelDrag();
 								}
 							}
 						);
@@ -8413,13 +8564,13 @@
  * Drag-and-drop support (native HTML5).
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 /*
@@ -8465,27 +8616,45 @@
 		classDropTarget = "fancytree-drop-target",
 		nodeMimeType = "application/x-fancytree-node",
 		$dropMarker = null,
+		$dragImage,
+		$extraHelper,
 		SOURCE_NODE = null,
 		SOURCE_NODE_LIST = null,
 		$sourceList = null,
 		DRAG_ENTER_RESPONSE = null,
+		// SESSION_DATA = null, // plain object passed to events as `data`
+		SUGGESTED_DROP_EFFECT = null,
+		REQUESTED_DROP_EFFECT = null,
+		REQUESTED_EFFECT_ALLOWED = null,
 		LAST_HIT_MODE = null,
 		DRAG_OVER_STAMP = null; // Time when a node entered the 'over' hitmode
 
 	/* */
 	function _clearGlobals() {
+		DRAG_ENTER_RESPONSE = null;
+		DRAG_OVER_STAMP = null;
+		REQUESTED_DROP_EFFECT = null;
+		REQUESTED_EFFECT_ALLOWED = null;
+		SUGGESTED_DROP_EFFECT = null;
 		SOURCE_NODE = null;
 		SOURCE_NODE_LIST = null;
 		if ($sourceList) {
 			$sourceList.removeClass(classDragSource + " " + classDragRemove);
 		}
 		$sourceList = null;
-		DRAG_ENTER_RESPONSE = null;
-		DRAG_OVER_STAMP = null;
+		if ($dropMarker) {
+			$dropMarker.hide();
+		}
+		// Take this badge off of me - I can't use it anymore:
+		if ($extraHelper) {
+			$extraHelper.remove();
+			$extraHelper = null;
+		}
 	}
 
 	/* Convert number to string and prepend +/-; return empty string for 0.*/
 	function offsetString(n) {
+		// eslint-disable-next-line no-nested-ternary
 		return n === 0 ? "" : n > 0 ? "+" + n : "" + n;
 	}
 
@@ -8528,6 +8697,25 @@
 		return res;
 	}
 
+	/* Convert a dataTransfer.effectAllowed to a canonical form.
+	 * Return false or plain object
+	 * @param {string|boolean} r
+	 * @return {object|false}
+	 */
+	// function normalizeEffectAllowed(r) {
+	// 	if (!r || r === "none") {
+	// 		return false;
+	// 	}
+	// 	var all = r === "all",
+	// 		res = {
+	// 			copy: all || /copy/i.test(r),
+	// 			link: all || /link/i.test(r),
+	// 			move: all || /move/i.test(r),
+	// 		};
+
+	// 	return res;
+	// }
+
 	/* Implement auto scrolling when drag cursor is in top/bottom area of scroll parent. */
 	function autoScroll(tree, event) {
 		var spOfs,
@@ -8579,7 +8767,193 @@
 		return scrolled;
 	}
 
-	/* Handle dragover event (fired every x ms) and return hitMode. */
+	/* Guess dropEffect from modifier keys.
+	 * Using rules suggested here:
+	 *     https://ux.stackexchange.com/a/83769
+	 * @returns
+	 *     'copy', 'link', 'move', or 'none'
+	 */
+	function evalEffectModifiers(tree, event, effectDefault) {
+		var res = effectDefault;
+
+		if (isMac) {
+			if (event.metaKey && event.altKey) {
+				// Mac: [Control] + [Option]
+				res = "link";
+			} else if (event.ctrlKey) {
+				// Chrome on Mac: [Control]
+				res = "link";
+			} else if (event.metaKey) {
+				// Mac: [Command]
+				res = "move";
+			} else if (event.altKey) {
+				// Mac: [Option]
+				res = "copy";
+			}
+		} else {
+			if (event.ctrlKey) {
+				// Windows: [Ctrl]
+				res = "copy";
+			} else if (event.shiftKey) {
+				// Windows: [Shift]
+				res = "move";
+			} else if (event.altKey) {
+				// Windows: [Alt]
+				res = "link";
+			}
+		}
+		if (res !== SUGGESTED_DROP_EFFECT) {
+			tree.info(
+				"evalEffectModifiers: " +
+					event.type +
+					" - evalEffectModifiers(): " +
+					SUGGESTED_DROP_EFFECT +
+					" -> " +
+					res
+			);
+		}
+		SUGGESTED_DROP_EFFECT = res;
+		// tree.debug("evalEffectModifiers: " + res);
+		return res;
+	}
+	/*
+	 * Check if the previous callback (dragEnter, dragOver, ...) has changed
+	 * the `data` object and apply those settings.
+	 *
+	 * Safari:
+	 *     It seems that `dataTransfer.dropEffect` can only be set on dragStart, and will remain
+	 *     even if the cursor changes when [Alt] or [Ctrl] are pressed (?)
+	 * Using rules suggested here:
+	 *     https://ux.stackexchange.com/a/83769
+	 * @returns
+	 *     'copy', 'link', 'move', or 'none'
+	 */
+	function prepareDropEffectCallback(event, data) {
+		var tree = data.tree,
+			dataTransfer = data.dataTransfer;
+
+		if (event.type === "dragstart") {
+			data.effectAllowed = tree.options.dnd5.effectAllowed;
+			data.dropEffect = tree.options.dnd5.dropEffectDefault;
+		} else {
+			data.effectAllowed = REQUESTED_EFFECT_ALLOWED;
+			data.dropEffect = REQUESTED_DROP_EFFECT;
+		}
+		data.dropEffectSuggested = evalEffectModifiers(
+			tree,
+			event,
+			tree.options.dnd5.dropEffectDefault
+		);
+		data.isMove = data.dropEffect === "move";
+		data.files = dataTransfer.files || [];
+
+		// if (REQUESTED_EFFECT_ALLOWED !== dataTransfer.effectAllowed) {
+		// 	tree.warn(
+		// 		"prepareDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.effectAllowed changed from " +
+		// 			REQUESTED_EFFECT_ALLOWED +
+		// 			" -> " +
+		// 			dataTransfer.effectAllowed
+		// 	);
+		// }
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	tree.warn(
+		// 		"prepareDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.dropEffect changed from requested " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" to " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+	}
+
+	function applyDropEffectCallback(event, data, allowDrop) {
+		var tree = data.tree,
+			dataTransfer = data.dataTransfer;
+
+		if (
+			event.type !== "dragstart" &&
+			REQUESTED_EFFECT_ALLOWED !== data.effectAllowed
+		) {
+			tree.warn(
+				"effectAllowed should only be changed in dragstart event: " +
+					event.type +
+					": data.effectAllowed changed from " +
+					REQUESTED_EFFECT_ALLOWED +
+					" -> " +
+					data.effectAllowed
+			);
+		}
+
+		if (allowDrop === false) {
+			tree.info("applyDropEffectCallback: allowDrop === false");
+			data.effectAllowed = "none";
+			data.dropEffect = "none";
+		}
+		// if (REQUESTED_DROP_EFFECT !== data.dropEffect) {
+		// 	tree.debug(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): data.dropEffect changed from previous " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" to " +
+		// 			data.dropEffect
+		// 	);
+		// }
+
+		data.isMove = data.dropEffect === "move";
+		// data.isMove = data.dropEffectSuggested === "move";
+
+		REQUESTED_EFFECT_ALLOWED = data.effectAllowed;
+		REQUESTED_DROP_EFFECT = data.dropEffect;
+
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	data.tree.info(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.dropEffect changed from " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" -> " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+		dataTransfer.effectAllowed = REQUESTED_EFFECT_ALLOWED;
+		dataTransfer.dropEffect = REQUESTED_DROP_EFFECT;
+
+		// tree.debug(
+		// 	"applyDropEffectCallback(" +
+		// 		event.type +
+		// 		"): set " +
+		// 		dataTransfer.dropEffect +
+		// 		"/" +
+		// 		dataTransfer.effectAllowed
+		// );
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	data.tree.warn(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): could not set dataTransfer.dropEffect to " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			": got " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+		return REQUESTED_DROP_EFFECT;
+	}
+
+	/* Handle dragover event (fired every x ms) on valid drop targets.
+	 *
+	 * - Auto-scroll when cursor is in border regions
+	 * - Apply restrictioan like 'preventVoidMoves'
+	 * - Calculate hit mode
+	 * - Calculate drop effect
+	 * - Trigger dragOver() callback to let user modify hit mode and drop effect
+	 * - Adjust the drop marker accordingly
+	 *
+	 * @returns hitMode
+	 */
 	function handleDragOver(event, data) {
 		// Implement auto-scrolling
 		if (data.options.dnd5.scroll) {
@@ -8610,74 +8984,69 @@
 			return false;
 		} else if (typeof DRAG_ENTER_RESPONSE === "string") {
 			$.error("assert failed: dragenter returned string");
-			// Use hitMode from onEnter if provided.
-			// hitMode = DRAG_ENTER_RESPONSE;
-		} else {
-			// Calculate hitMode from relative cursor position.
-			nodeOfs = $target.offset();
-			relPosY = (event.pageY - nodeOfs.top) / $target.height();
-
-			if (DRAG_ENTER_RESPONSE.after && relPosY > 0.75) {
-				hitMode = "after";
+		}
+		// Calculate hitMode from relative cursor position.
+		nodeOfs = $target.offset();
+		relPosY = (event.pageY - nodeOfs.top) / $target.height();
+
+		if (DRAG_ENTER_RESPONSE.after && relPosY > 0.75) {
+			hitMode = "after";
+		} else if (
+			!DRAG_ENTER_RESPONSE.over &&
+			DRAG_ENTER_RESPONSE.after &&
+			relPosY > 0.5
+		) {
+			hitMode = "after";
+		} else if (DRAG_ENTER_RESPONSE.before && relPosY <= 0.25) {
+			hitMode = "before";
+		} else if (
+			!DRAG_ENTER_RESPONSE.over &&
+			DRAG_ENTER_RESPONSE.before &&
+			relPosY <= 0.5
+		) {
+			hitMode = "before";
+		} else if (DRAG_ENTER_RESPONSE.over) {
+			hitMode = "over";
+		}
+		// Prevent no-ops like 'before source node'
+		// TODO: these are no-ops when moving nodes, but not in copy mode
+		if (dndOpts.preventVoidMoves && data.dropEffect === "move") {
+			if (targetNode === sourceNode) {
+				targetNode.debug("Drop over source node prevented.");
+				hitMode = null;
 			} else if (
-				!DRAG_ENTER_RESPONSE.over &&
-				DRAG_ENTER_RESPONSE.after &&
-				relPosY > 0.5
+				hitMode === "before" &&
+				sourceNode &&
+				targetNode === sourceNode.getNextSibling()
 			) {
-				hitMode = "after";
-			} else if (DRAG_ENTER_RESPONSE.before && relPosY <= 0.25) {
-				hitMode = "before";
+				targetNode.debug("Drop after source node prevented.");
+				hitMode = null;
 			} else if (
-				!DRAG_ENTER_RESPONSE.over &&
-				DRAG_ENTER_RESPONSE.before &&
-				relPosY <= 0.5
+				hitMode === "after" &&
+				sourceNode &&
+				targetNode === sourceNode.getPrevSibling()
 			) {
-				hitMode = "before";
-			} else if (DRAG_ENTER_RESPONSE.over) {
-				hitMode = "over";
-			}
-			// Prevent no-ops like 'before source node'
-			// TODO: these are no-ops when moving nodes, but not in copy mode
-			if (dndOpts.preventVoidMoves) {
-				if (targetNode === sourceNode) {
-					targetNode.debug("Drop over source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "before" &&
-					sourceNode &&
-					targetNode === sourceNode.getNextSibling()
-				) {
-					targetNode.debug("Drop after source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "after" &&
-					sourceNode &&
-					targetNode === sourceNode.getPrevSibling()
-				) {
-					targetNode.debug("Drop before source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "over" &&
-					sourceNode &&
-					sourceNode.parent === targetNode &&
-					sourceNode.isLastSibling()
-				) {
-					targetNode.debug(
-						"Drop last child over own parent prevented."
-					);
-					hitMode = null;
-				}
+				targetNode.debug("Drop before source node prevented.");
+				hitMode = null;
+			} else if (
+				hitMode === "over" &&
+				sourceNode &&
+				sourceNode.parent === targetNode &&
+				sourceNode.isLastSibling()
+			) {
+				targetNode.debug("Drop last child over own parent prevented.");
+				hitMode = null;
 			}
 		}
 		// Let callback modify the calculated hitMode
 		data.hitMode = hitMode;
 		if (hitMode && dndOpts.dragOver) {
-			// TODO: http://code.google.com/p/dynatree/source/detail?r=625
+			prepareDropEffectCallback(event, data);
 			dndOpts.dragOver(targetNode, data);
+			var allowDrop = !!hitMode;
+			applyDropEffectCallback(event, data, allowDrop);
 			hitMode = data.hitMode;
 		}
-		// LAST_DROP_EFFECT = data.dataTransfer.dropEffect;
-		// LAST_EFFECT_ALLOWED = data.dataTransfer.effectAllowed;
 		LAST_HIT_MODE = hitMode;
 		//
 		if (hitMode === "after" || hitMode === "before" || hitMode === "over") {
@@ -8729,71 +9098,492 @@
 		return hitMode;
 	}
 
-	/* Guess dropEffect from modifier keys.
-	 * Safari:
-	 *     It seems that `dataTransfer.dropEffect` can only be set on dragStart, and will remain
-	 *     even if the cursor changes when [Alt] or [Ctrl] are pressed (?)
-	 * Using rules suggested here:
-	 *     https://ux.stackexchange.com/a/83769
-	 * @returns
-	 *     'copy', 'link', 'move', or 'none'
+	/*
+	 * Handle dragstart drag dragend events on the container
 	 */
-	function getDropEffect(event, data) {
-		var dndOpts = data.options.dnd5,
-			res = dndOpts.dropEffectDefault;
-		// dataTransfer = event.dataTransfer || event.originalEvent.dataTransfer,
-
-		// Use callback if any:
-		if (dndOpts.dropEffect) {
-			return dndOpts.dropEffect(event, data);
+	function onDragEvent(event) {
+		var json,
+			tree = this,
+			dndOpts = tree.options.dnd5,
+			node = FT.getNode(event),
+			dataTransfer =
+				event.dataTransfer || event.originalEvent.dataTransfer,
+			data = {
+				tree: tree,
+				node: node,
+				options: tree.options,
+				originalEvent: event.originalEvent,
+				widget: tree.widget,
+				dataTransfer: dataTransfer,
+				useDefaultImage: true,
+				dropEffect: undefined,
+				dropEffectSuggested: undefined,
+				effectAllowed: undefined, // set by dragstart
+				files: undefined, // only for drop events
+				isCancelled: undefined, // set by dragend
+				isMove: undefined,
+			};
+
+		switch (event.type) {
+			case "dragstart":
+				if (!node) {
+					tree.info("Ignored dragstart on a non-node.");
+					return false;
+				}
+				// Store current source node in different formats
+				SOURCE_NODE = node;
+
+				// Also optionally store selected nodes
+				if (dndOpts.multiSource === false) {
+					SOURCE_NODE_LIST = [node];
+				} else if (dndOpts.multiSource === true) {
+					SOURCE_NODE_LIST = tree.getSelectedNodes();
+					if (!node.isSelected()) {
+						SOURCE_NODE_LIST.unshift(node);
+					}
+				} else {
+					SOURCE_NODE_LIST = dndOpts.multiSource(node, data);
+				}
+				// Cache as array of jQuery objects for faster access:
+				$sourceList = $(
+					$.map(SOURCE_NODE_LIST, function(n) {
+						return n.span;
+					})
+				);
+				// Set visual feedback
+				$sourceList.addClass(classDragSource);
+
+				// Set payload
+				// Note:
+				// Transfer data is only accessible on dragstart and drop!
+				// For all other events the formats and kinds in the drag
+				// data store list of items representing dragged data can be
+				// enumerated, but the data itself is unavailable and no new
+				// data can be added.
+				var nodeData = node.toDict();
+				nodeData.treeId = node.tree._id;
+				json = JSON.stringify(nodeData);
+				try {
+					dataTransfer.setData(nodeMimeType, json);
+					dataTransfer.setData("text/html", $(node.span).html());
+					dataTransfer.setData("text/plain", node.title);
+				} catch (ex) {
+					// IE only accepts 'text' type
+					tree.warn(
+						"Could not set data (IE only accepts 'text') - " + ex
+					);
+				}
+				// We always need to set the 'text' type if we want to drag
+				// Because IE 11 only accepts this single type.
+				// If we pass JSON here, IE can can access all node properties,
+				// even when the source lives in another window. (D'n'd inside
+				// the same window will always work.)
+				// The drawback is, that in this case ALL browsers will see
+				// the JSON representation as 'text', so dragging
+				// to a text field will insert the JSON string instead of
+				// the node title.
+				if (dndOpts.setTextTypeJson) {
+					dataTransfer.setData("text", json);
+				} else {
+					dataTransfer.setData("text", node.title);
+				}
+
+				// Set the allowed drag modes (combinations of move, copy, and link)
+				// (effectAllowed can only be set in the dragstart event.)
+				// This can be overridden in the dragStart() callback
+				prepareDropEffectCallback(event, data);
+
+				// Let user cancel or modify above settings
+				// Realize potential changes by previous callback
+				if (dndOpts.dragStart(node, data) === false) {
+					// Cancel dragging
+					// dataTransfer.dropEffect = "none";
+					_clearGlobals();
+					return false;
+				}
+				applyDropEffectCallback(event, data);
+
+				// Unless user set `data.useDefaultImage` to false in dragStart,
+				// generata a default drag image now:
+				$extraHelper = null;
+
+				if (data.useDefaultImage) {
+					// Set the title as drag image (otherwise it would contain the expander)
+					$dragImage = $(node.span).find(".fancytree-title");
+
+					if (SOURCE_NODE_LIST && SOURCE_NODE_LIST.length > 1) {
+						// Add a counter badge to node title if dragging more than one node.
+						// We want this, because the element that is used as drag image
+						// must be *visible* in the DOM, so we cannot create some hidden
+						// custom markup.
+						// See https://kryogenix.org/code/browser/custom-drag-image.html
+						// Also, since IE 11 and Edge don't support setDragImage() alltogether,
+						// it gives som feedback to the user.
+						// The badge will be removed later on drag end.
+						$extraHelper = $(
+							"<span class='fancytree-childcounter'/>"
+						)
+							.text("+" + (SOURCE_NODE_LIST.length - 1))
+							.appendTo($dragImage);
+					}
+					if (dataTransfer.setDragImage) {
+						// IE 11 and Edge do not support this
+						dataTransfer.setDragImage($dragImage[0], -10, -10);
+					}
+				}
+				return true;
+
+			case "drag":
+				// Called every few milliseconds (no matter if the
+				// cursor is over a valid drop target)
+				// data.tree.info("drag", SOURCE_NODE)
+				prepareDropEffectCallback(event, data);
+				dndOpts.dragDrag(node, data);
+				applyDropEffectCallback(event, data);
+
+				$sourceList.toggleClass(classDragRemove, data.isMove);
+				break;
+
+			case "dragend":
+				// Called at the end of a d'n'd process (after drop)
+				// Note caveat: If drop removed the dragged source element,
+				// we may not get this event, since the target does not exist
+				// anymore
+				prepareDropEffectCallback(event, data);
+
+				_clearGlobals();
+
+				data.isCancelled = !LAST_HIT_MODE;
+				dndOpts.dragEnd(node, data, !LAST_HIT_MODE);
+				// applyDropEffectCallback(event, data);
+				break;
 		}
+	}
+	/*
+	 * Handle dragenter dragover dragleave drop events on the container
+	 */
+	function onDropEvent(event) {
+		var json,
+			nodeData,
+			isSourceFtNode,
+			r,
+			res,
+			tree = this,
+			dndOpts = tree.options.dnd5,
+			allowDrop = null,
+			node = FT.getNode(event),
+			dataTransfer =
+				event.dataTransfer || event.originalEvent.dataTransfer,
+			data = {
+				tree: tree,
+				node: node,
+				options: tree.options,
+				originalEvent: event.originalEvent,
+				widget: tree.widget,
+				hitMode: DRAG_ENTER_RESPONSE,
+				dataTransfer: dataTransfer,
+				otherNode: SOURCE_NODE || null,
+				otherNodeList: SOURCE_NODE_LIST || null,
+				otherNodeData: null, // set by drop event
+				useDefaultImage: true,
+				dropEffect: undefined,
+				dropEffectSuggested: undefined,
+				effectAllowed: undefined, // set by dragstart
+				files: null, // list of File objects (may be [])
+				isCancelled: undefined, // set by drop event
+				isMove: undefined,
+			};
 
-		if (isMac) {
-			if (event.metaKey && event.altKey) {
-				// Mac: [Control] + [Option]
-				return "link";
-			} else if (event.metaKey) {
-				// Mac: [Command]
-				return "move";
-			} else if (event.altKey) {
-				// Mac: [Option]
-				return "copy";
-			}
-		} else {
-			if (event.ctrlKey) {
-				// Windows: [Ctrl]
-				return "copy";
-			} else if (event.shiftKey) {
-				// Windows: [Shift]
-				return "move";
-			} else if (event.altKey) {
-				// Windows: [Alt]
-				return "link";
-			}
+		// data.isMove = dropEffect === "move";
+
+		switch (event.type) {
+			case "dragenter":
+				// The dragenter event is fired when a dragged element or
+				// text selection enters a valid drop target.
+
+				DRAG_OVER_STAMP = null;
+				if (!node) {
+					// Sometimes we get dragenter for the container element
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				}
+
+				$(node.span)
+					.addClass(classDropOver)
+					.removeClass(classDropAccept + " " + classDropReject);
+
+				// Data is only readable in the dragstart and drop event,
+				// but we can check for the type:
+				isSourceFtNode =
+					$.inArray(nodeMimeType, dataTransfer.types) >= 0;
+
+				if (dndOpts.preventNonNodes && !isSourceFtNode) {
+					node.debug("Reject dropping a non-node.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventForeignNodes &&
+					(!SOURCE_NODE || SOURCE_NODE.tree !== node.tree)
+				) {
+					node.debug("Reject dropping a foreign node.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventSameParent &&
+					data.otherNode &&
+					data.otherNode.tree === node.tree &&
+					node.parent === data.otherNode.parent
+				) {
+					node.debug("Reject dropping as sibling (same parent).");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventRecursion &&
+					data.otherNode &&
+					data.otherNode.tree === node.tree &&
+					node.isDescendantOf(data.otherNode)
+				) {
+					node.debug("Reject dropping below own ancestor.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				}
+				$dropMarker.show();
+
+				// Call dragEnter() to figure out if (and where) dropping is allowed
+				prepareDropEffectCallback(event, data);
+				r = dndOpts.dragEnter(node, data);
+
+				res = normalizeDragEnterResponse(r);
+				DRAG_ENTER_RESPONSE = res;
+
+				allowDrop = res && (res.over || res.before || res.after);
+
+				applyDropEffectCallback(event, data, allowDrop);
+				break;
+
+			case "dragover":
+				if (!node) {
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					break;
+				}
+				// The dragover event is fired when an element or text
+				// selection is being dragged over a valid drop target
+				// (every few hundred milliseconds).
+				// tree.debug(
+				// 	event.type +
+				// 		": dropEffect: " +
+				// 		dataTransfer.dropEffect
+				// );
+				LAST_HIT_MODE = handleDragOver(event, data);
+
+				// The flag controls the preventDefault() below:
+				allowDrop = !!LAST_HIT_MODE;
+
+				if (
+					LAST_HIT_MODE === "over" &&
+					!node.expanded &&
+					node.hasChildren() !== false
+				) {
+					if (!DRAG_OVER_STAMP) {
+						DRAG_OVER_STAMP = Date.now();
+					} else if (
+						dndOpts.autoExpandMS &&
+						Date.now() - DRAG_OVER_STAMP > dndOpts.autoExpandMS &&
+						(!dndOpts.dragExpand ||
+							dndOpts.dragExpand(node, data) !== false)
+					) {
+						node.setExpanded();
+					}
+				} else {
+					DRAG_OVER_STAMP = null;
+				}
+				break;
+
+			case "dragleave":
+				// NOTE: dragleave is fired AFTER the dragenter event of the
+				// FOLLOWING element.
+				if (!node) {
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					break;
+				}
+				if (!$(node.span).hasClass(classDropOver)) {
+					node.debug("Ignore dragleave (multi).");
+					break;
+				}
+				$(node.span).removeClass(
+					classDropOver +
+						" " +
+						classDropAccept +
+						" " +
+						classDropReject
+				);
+				node.scheduleAction("cancel");
+				dndOpts.dragLeave(node, data);
+				$dropMarker.hide();
+				break;
+
+			case "drop":
+				// Data is only readable in the (dragstart and) drop event:
+
+				if ($.inArray(nodeMimeType, dataTransfer.types) >= 0) {
+					nodeData = dataTransfer.getData(nodeMimeType);
+					tree.info(
+						event.type +
+							": getData('application/x-fancytree-node'): '" +
+							nodeData +
+							"'"
+					);
+				}
+				if (!nodeData) {
+					// 1. Source is not a Fancytree node, or
+					// 2. If the FT mime type was set, but returns '', this
+					//    is probably IE 11 (which only supports 'text')
+					nodeData = dataTransfer.getData("text");
+					tree.info(
+						event.type + ": getData('text'): '" + nodeData + "'"
+					);
+				}
+				if (nodeData) {
+					try {
+						// 'text' type may contain JSON if IE is involved
+						// and setTextTypeJson option was set
+						json = JSON.parse(nodeData);
+						if (json.title !== undefined) {
+							data.otherNodeData = json;
+						}
+					} catch (ex) {
+						// assume 'text' type contains plain text, so `otherNodeData`
+						// should not be set
+					}
+				}
+				tree.debug(
+					event.type +
+						": nodeData: '" +
+						nodeData +
+						"', otherNodeData: ",
+					data.otherNodeData
+				);
+
+				$(node.span).removeClass(
+					classDropOver +
+						" " +
+						classDropAccept +
+						" " +
+						classDropReject
+				);
+
+				// Let user implement the actual drop operation
+				data.hitMode = LAST_HIT_MODE;
+				prepareDropEffectCallback(event, data, !LAST_HIT_MODE);
+				data.isCancelled = !LAST_HIT_MODE;
+
+				var orgSourceElem = SOURCE_NODE && SOURCE_NODE.span,
+					orgSourceTree = SOURCE_NODE && SOURCE_NODE.tree;
+
+				dndOpts.dragDrop(node, data);
+				// applyDropEffectCallback(event, data);
+
+				// Prevent browser's default drop handling, i.e. open as link, ...
+				event.preventDefault();
+
+				if (orgSourceElem && !document.body.contains(orgSourceElem)) {
+					// The drop handler removed the original drag source from
+					// the DOM, so the dragend event will probaly not fire.
+					if (orgSourceTree === tree) {
+						tree.debug(
+							"Drop handler removed source element: generating dragEnd."
+						);
+						dndOpts.dragEnd(SOURCE_NODE, data);
+					} else {
+						tree.warn(
+							"Drop handler removed source element: dragend event may be lost."
+						);
+					}
+				}
+
+				_clearGlobals();
+
+				break;
+		}
+		// Dnd API madness: we must PREVENT default handling to enable dropping
+		if (allowDrop) {
+			event.preventDefault();
+			return false;
 		}
-		// data.tree.debug("getDropEffect: " + res);
-		return res;
 	}
 
+	/** [ext-dnd5] Return a Fancytree instance, from element, index, event, or jQueryObject.
+	 *
+	 * @returns {FancytreeNode[]} List of nodes (empty if no drag operation)
+	 * @example
+	 * $.ui.fancytree.getDragNodeList();
+	 *
+	 * @alias Fancytree_Static#getDragNodeList
+	 * @requires jquery.fancytree.dnd5.js
+	 * @since 2.31
+	 */
+	$.ui.fancytree.getDragNodeList = function() {
+		return SOURCE_NODE_LIST || [];
+	};
+
+	/** [ext-dnd5] Return the FancytreeNode that is currently being dragged.
+	 *
+	 * If multiple nodes are dragged, only the first is returned.
+	 *
+	 * @returns {FancytreeNode | null} dragged nodes or null if no drag operation
+	 * @example
+	 * $.ui.fancytree.getDragNode();
+	 *
+	 * @alias Fancytree_Static#getDragNode
+	 * @requires jquery.fancytree.dnd5.js
+	 * @since 2.31
+	 */
+	$.ui.fancytree.getDragNode = function() {
+		return SOURCE_NODE;
+	};
+
 	/******************************************************************************
 	 *
 	 */
 
 	$.ui.fancytree.registerExtension({
 		name: "dnd5",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autoExpandMS: 1500, // Expand nodes after n milliseconds of hovering
 			dropMarkerInsertOffsetX: -16, // Additional offset for drop-marker with hitMode = "before"/"after"
 			dropMarkerOffsetX: -24, // Absolute position offset for .fancytree-drop-marker relatively to ..fancytree-title (icon/img near a node accepting drop)
-			multiSource: false, // true: Drag multiple (i.e. selected) nodes.
-			dragImage: null, // Callback(node, data) that can be used to call dataTransfer.setDragImage().
-			dropEffect: null, // Callback(node, data) that returns 'copy', 'link', 'move', or 'none'.
-			dropEffectDefault: "move", // Default dropEffect ('copy', 'link', or 'move').
+			multiSource: false, // true: Drag multiple (i.e. selected) nodes. Also a callback() is allowed
+			effectAllowed: "all", // Restrict the possible cursor shapes and modifier operations (can also be set in the dragStart event)
+			// dropEffect: "auto", // 'copy'|'link'|'move'|'auto'(calculate from `effectAllowed`+modifier keys) or callback(node, data) that returns such string.
+			dropEffectDefault: "move", // Default dropEffect ('copy', 'link', or 'move') when no modifier is pressed (overide in dragDrag, dragOver).
 			preventForeignNodes: false, // Prevent dropping nodes from different Fancytrees
 			preventNonNodes: false, // Prevent dropping items other than Fancytree nodes
-			preventRecursiveMoves: true, // Prevent dropping nodes on own descendants
+			preventRecursion: true, // Prevent dropping nodes on own descendants
+			preventSameParent: false, // Prevent dropping nodes under same direct parent
 			preventVoidMoves: true, // Prevent dropping nodes 'before self', etc.
 			scroll: true, // Enable auto-scrolling while dragging
 			scrollSensitivity: 20, // Active top/bottom margin in pixel
@@ -8812,14 +9602,11 @@
 		},
 
 		treeInit: function(ctx) {
-			var $dragImage,
-				$extraHelper,
-				$temp,
+			var $temp,
 				tree = ctx.tree,
 				opts = ctx.options,
 				glyph = opts.glyph || null,
-				dndOpts = opts.dnd5,
-				getNode = FT.getNode;
+				dndOpts = opts.dnd5;
 
 			if ($.inArray("dnd", opts.extensions) >= 0) {
 				$.error("Extensions 'dnd' and 'dnd5' are mutually exclusive.");
@@ -8829,6 +9616,11 @@
 					"dragStop is not used by ext-dnd5. Use dragEnd instead."
 				);
 			}
+			if (dndOpts.preventRecursiveMoves != null) {
+				$.error(
+					"preventRecursiveMoves was renamed to preventRecursion."
+				);
+			}
 
 			// Implement `opts.createNode` event to add the 'draggable' attribute
 			// #680: this must happen before calling super.treeInit()
@@ -8839,7 +9631,11 @@
 				) {
 					// Default processing if any
 					this._super.apply(this, arguments);
-					data.node.span.draggable = true;
+					if (data.node.span) {
+						data.node.span.draggable = true;
+					} else {
+						data.node.warn("Cannot add `draggable`: no span tag");
+					}
 				});
 			}
 			this._superApply(arguments);
@@ -8869,449 +9665,24 @@
 						glyph.map._addClass,
 						glyph.map.dropMarker
 					);
-					// $dropMarker.addClass(glyph.map._addClass + " " + glyph.map.dropMarker);
 				}
 			}
 			$dropMarker.toggleClass("fancytree-rtl", !!opts.rtl);
+
 			// Enable drag support if dragStart() is specified:
 			if (dndOpts.dragStart) {
 				// Bind drag event handlers
-				tree.$container.on("dragstart drag dragend", function(event) {
-					var json,
-						node = getNode(event),
-						dataTransfer =
-							event.dataTransfer ||
-							event.originalEvent.dataTransfer,
-						data = {
-							node: node,
-							tree: tree,
-							options: tree.options,
-							originalEvent: event,
-							dataTransfer: dataTransfer,
-							// dropEffect: undefined,  // set by dragend
-							isCancelled: undefined, // set by dragend
-						},
-						dropEffect = getDropEffect(event, data),
-						isMove = dropEffect === "move";
-
-					// console.log(event.type, "dropEffect: " + dropEffect);
-					switch (event.type) {
-						case "dragstart":
-							if (!node) {
-								tree.info("Ignored dragstart on a non-node.");
-								return false;
-							}
-							// Store current source node in different formats
-							SOURCE_NODE = node;
-
-							// Also optionally store selected nodes
-							if (dndOpts.multiSource === false) {
-								SOURCE_NODE_LIST = [node];
-							} else if (dndOpts.multiSource === true) {
-								SOURCE_NODE_LIST = tree.getSelectedNodes();
-								if (!node.isSelected()) {
-									SOURCE_NODE_LIST.unshift(node);
-								}
-							} else {
-								SOURCE_NODE_LIST = dndOpts.multiSource(
-									node,
-									data
-								);
-							}
-							// Cache as array of jQuery objects for faster access:
-							$sourceList = $(
-								$.map(SOURCE_NODE_LIST, function(n) {
-									return n.span;
-								})
-							);
-							// Set visual feedback
-							$sourceList.addClass(classDragSource);
-
-							// Set payload
-							// Note:
-							// Transfer data is only accessible on dragstart and drop!
-							// For all other events the formats and kinds in the drag
-							// data store list of items representing dragged data can be
-							// enumerated, but the data itself is unavailable and no new
-							// data can be added.
-							json = JSON.stringify(node.toDict());
-							try {
-								dataTransfer.setData(nodeMimeType, json);
-								dataTransfer.setData(
-									"text/html",
-									$(node.span).html()
-								);
-								dataTransfer.setData("text/plain", node.title);
-							} catch (ex) {
-								// IE only accepts 'text' type
-								tree.warn(
-									"Could not set data (IE only accepts 'text') - " +
-										ex
-								);
-							}
-							// We always need to set the 'text' type if we want to drag
-							// Because IE 11 only accepts this single type.
-							// If we pass JSON here, IE can can access all node properties,
-							// even when the source lives in another window. (D'n'd inside
-							// the same window will always work.)
-							// The drawback is, that in this case ALL browsers will see
-							// the JSON representation as 'text', so dragging
-							// to a text field will insert the JSON string instead of
-							// the node title.
-							if (dndOpts.setTextTypeJson) {
-								dataTransfer.setData("text", json);
-							} else {
-								dataTransfer.setData("text", node.title);
-							}
-
-							// Set the allowed and current drag mode (move, copy, or link)
-							dataTransfer.effectAllowed = "all"; // "copyMove"
-							// dropEffect = "move";
-
-							$extraHelper = null;
-
-							if (dndOpts.dragImage) {
-								// Let caller set a custom drag image using dataTransfer.setDragImage()
-								// and/or modify visual feedback otherwise.
-								dndOpts.dragImage(node, data);
-							} else {
-								// Set the title as drag image (otherwise it would contain the expander)
-								$dragImage = $(node.span).find(
-									".fancytree-title"
-								);
-
-								if (
-									SOURCE_NODE_LIST &&
-									SOURCE_NODE_LIST.length > 1
-								) {
-									// Add a counter badge to node title if dragging more than one node.
-									// We want this, because the element that is used as drag image
-									// must be *visible* in the DOM, so we cannot create some hidden
-									// custom markup.
-									// See https://kryogenix.org/code/browser/custom-drag-image.html
-									// Also, since IE 11 and Edge don't support setDragImage() alltogether,
-									// it gives som feedback to the user.
-									// The badge will be removed later on drag end.
-									$extraHelper = $(
-										"<span class='fancytree-childcounter'/>"
-									)
-										.text(
-											"+" + (SOURCE_NODE_LIST.length - 1)
-										)
-										.appendTo($dragImage);
-								}
-								if (dataTransfer.setDragImage) {
-									// IE 11 and Edge do not support this
-									dataTransfer.setDragImage(
-										$dragImage[0],
-										-10,
-										-10
-									);
-								}
-							}
-							// Let user modify above settings
-							if (dndOpts.dragStart(node, data) !== false) {
-								return true;
-							}
-							// Clear dragged node to be safe
-							_clearGlobals();
-							return false;
-
-						case "drag":
-							// Called every few miliseconds
-							// data.tree.info("drag", SOURCE_NODE)
-							$sourceList.toggleClass(classDragRemove, isMove);
-							dndOpts.dragDrag(node, data);
-							break;
-
-						case "dragend":
-							_clearGlobals();
-							// data.dropEffect = dropEffect;
-							data.isCancelled = dropEffect === "none";
-							$dropMarker.hide();
-							// Take this badge off of me - I can't use it anymore:
-							if ($extraHelper) {
-								$extraHelper.remove();
-								$extraHelper = null;
-							}
-							dndOpts.dragEnd(node, data);
-							break;
-					}
-				});
+				tree.$container.on(
+					"dragstart drag dragend",
+					onDragEvent.bind(tree)
+				);
 			}
 			// Enable drop support if dragEnter() is specified:
 			if (dndOpts.dragEnter) {
 				// Bind drop event handlers
 				tree.$container.on(
 					"dragenter dragover dragleave drop",
-					function(event) {
-						var json,
-							nodeData,
-							isSourceFtNode,
-							r,
-							res,
-							allowDrop = null,
-							node = getNode(event),
-							dataTransfer =
-								event.dataTransfer ||
-								event.originalEvent.dataTransfer,
-							// dropEffect = getDropEffect(dataTransfer, opts),
-							data = {
-								node: node,
-								tree: tree,
-								options: tree.options,
-								hitMode: DRAG_ENTER_RESPONSE,
-								originalEvent: event,
-								dataTransfer: dataTransfer,
-								otherNode: SOURCE_NODE || null,
-								otherNodeList: SOURCE_NODE_LIST || null,
-								otherNodeData: null, // set by drop event
-								dropEffect: undefined, // set by drop event
-								isCancelled: undefined, // set by drop event
-							};
-
-						switch (event.type) {
-							case "dragenter":
-								// The dragenter event is fired when a dragged element or
-								// text selection enters a valid drop target.
-
-								DRAG_OVER_STAMP = null;
-								if (!node) {
-									// Sometimes we get dragenter for the container element
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								}
-
-								$(node.span)
-									.addClass(classDropOver)
-									.removeClass(
-										classDropAccept + " " + classDropReject
-									);
-
-								// Data is only readable in the dragstart and drop event,
-								// but we can check for the type:
-								isSourceFtNode =
-									$.inArray(
-										nodeMimeType,
-										dataTransfer.types
-									) >= 0;
-
-								if (
-									dndOpts.preventNonNodes &&
-									!isSourceFtNode
-								) {
-									node.debug("Reject dropping a non-node.");
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								} else if (
-									dndOpts.preventForeignNodes &&
-									(!SOURCE_NODE ||
-										SOURCE_NODE.tree !== node.tree)
-								) {
-									node.debug(
-										"Reject dropping a foreign node."
-									);
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								}
-
-								$dropMarker.show();
-
-								// Call dragEnter() to figure out if (and where) dropping is allowed
-								if (
-									dndOpts.preventRecursiveMoves &&
-									node.isDescendantOf(data.otherNode)
-								) {
-									node.debug(
-										"Reject dropping below own ancestor."
-									);
-									res = false;
-								} else {
-									r = dndOpts.dragEnter(node, data);
-									res = normalizeDragEnterResponse(r);
-								}
-								DRAG_ENTER_RESPONSE = res;
-
-								allowDrop =
-									res &&
-									(res.over || res.before || res.after);
-								break;
-
-							case "dragover":
-								if (!node) {
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									break;
-								}
-								// The dragover event is fired when an element or text
-								// selection is being dragged over a valid drop target
-								// (every few hundred milliseconds).
-								// console.log(event.type, "dropEffect: " + dataTransfer.dropEffect)
-								LAST_HIT_MODE = handleDragOver(event, data);
-								allowDrop = !!LAST_HIT_MODE;
-
-								// console.log(event.type, LAST_HIT_MODE, DRAG_OVER_STAMP)
-
-								if (
-									LAST_HIT_MODE === "over" &&
-									!node.expanded &&
-									node.hasChildren() !== false
-								) {
-									if (!DRAG_OVER_STAMP) {
-										DRAG_OVER_STAMP = Date.now();
-									} else if (
-										dndOpts.autoExpandMS &&
-										Date.now() - DRAG_OVER_STAMP >
-											dndOpts.autoExpandMS &&
-										(!dndOpts.dragExpand ||
-											dndOpts.dragExpand(node, data) !==
-												false)
-									) {
-										node.setExpanded();
-									}
-								} else {
-									DRAG_OVER_STAMP = null;
-								}
-								// // NOTE: dragenter is fired BEFORE the dragleave event
-								// // of the previous element!
-								// // https://www.w3.org/Bugs/Public/show_bug.cgi?id=19041
-								// setTimeout(function(){
-								// 	node.info("DELAYED " + event.type, event.target, DRAG_ENTER_RESPONSE);
-								// 	// Auto-expand node (only when 'over' the node, not 'before', or 'after')
-								// 	if( dndOpts.autoExpandMS &&
-								// 		node.hasChildren() !== false && !node.expanded &&
-								// 		(!dndOpts.dragExpand || dndOpts.dragExpand(node, data) !== false)
-								// 		// res.over
-								// 		) {
-								// 		node.scheduleAction("expand", dndOpts.autoExpandMS);
-								// 	}
-								// }, 0);
-
-								break;
-
-							case "dragleave":
-								// NOTE: dragleave is fired AFTER the dragenter event of the
-								// FOLLOWING element.
-								if (!node) {
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									break;
-								}
-								if (!$(node.span).hasClass(classDropOver)) {
-									node.debug("Ignore dragleave (multi).");
-									break;
-								}
-								$(node.span).removeClass(
-									classDropOver +
-										" " +
-										classDropAccept +
-										" " +
-										classDropReject
-								);
-								node.scheduleAction("cancel");
-								dndOpts.dragLeave(node, data);
-								$dropMarker.hide();
-								break;
-
-							case "drop":
-								// Data is only readable in the (dragstart and) drop event:
-
-								if (
-									$.inArray(
-										nodeMimeType,
-										dataTransfer.types
-									) >= 0
-								) {
-									nodeData = dataTransfer.getData(
-										nodeMimeType
-									);
-									tree.info(
-										event.type +
-											": getData('application/x-fancytree-node'): '" +
-											nodeData +
-											"'"
-									);
-								}
-								if (!nodeData) {
-									// 1. Source is not a Fancytree node, or
-									// 2. If the FT mime type was set, but returns '', this
-									//    is probably IE 11 (which only supports 'text')
-									nodeData = dataTransfer.getData("text");
-									tree.info(
-										event.type +
-											": getData('text'): '" +
-											nodeData +
-											"'"
-									);
-								}
-								if (nodeData) {
-									try {
-										// 'text' type may contain JSON if IE is involved
-										// and setTextTypeJson option was set
-										json = JSON.parse(nodeData);
-										if (json.title !== undefined) {
-											data.otherNodeData = json;
-										}
-									} catch (ex) {
-										// assume 'text' type contains plain text, so `otherNodeData`
-										// should not be set
-									}
-								}
-								tree.debug(
-									event.type +
-										": nodeData: '" +
-										nodeData +
-										"', otherNodeData: ",
-									data.otherNodeData
-								);
-
-								$(node.span).removeClass(
-									classDropOver +
-										" " +
-										classDropAccept +
-										" " +
-										classDropReject
-								);
-								$dropMarker.hide();
-
-								data.hitMode = LAST_HIT_MODE;
-								data.dropEffect = dataTransfer.dropEffect;
-								data.isCancelled = data.dropEffect === "none";
-
-								// Let user implement the actual drop operation
-								dndOpts.dragDrop(node, data);
-
-								// Prevent browser's default drop handling
-								event.preventDefault();
-								_clearGlobals();
-								break;
-						}
-						// Dnd API madness: we must PREVENT default handling to enable dropping
-						if (allowDrop) {
-							event.preventDefault();
-							return false;
-						}
-					}
+					onDropEvent.bind(tree)
 				);
 			}
 		},
@@ -9326,13 +9697,13 @@
  * Make node titles editable.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -9436,7 +9807,7 @@
 			.change(function(event) {
 				$input.addClass("fancytree-edit-dirty");
 			})
-			.keydown(function(event) {
+			.on("keydown", function(event) {
 				switch (event.which) {
 					case $.ui.keyCode.ESCAPE:
 						node.editEnd(false, event);
@@ -9624,7 +9995,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "edit",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			adjustWidthOfs: 4, // null: don't adjust input size to content
@@ -9645,8 +10016,21 @@
 		currentNode: null,
 
 		treeInit: function(ctx) {
+			var tree = ctx.tree;
+
 			this._superApply(arguments);
-			this.$container.addClass("fancytree-ext-edit");
+
+			this.$container
+				.addClass("fancytree-ext-edit")
+				.on("fancytreebeforeupdateviewport", function(event, data) {
+					var editNode = tree.isEditing();
+					// When scrolling, the TR may be re-used by another node, so the
+					// active cell marker an
+					if (editNode) {
+						editNode.info("Cancel edit due to scroll event.");
+						editNode.editEnd(false, event);
+					}
+				});
 		},
 		nodeClick: function(ctx) {
 			var eventStr = $.ui.fancytree.eventToString(ctx.originalEvent),
@@ -9716,13 +10100,13 @@
  * Remove or highlight tree nodes, based on a filter.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -9748,8 +10132,7 @@
 		escapeHtml = $.ui.fancytree.escapeHtml;
 
 	function _escapeRegex(str) {
-		/*jshint regexdash:true */
-		return (str + "").replace(/([.?*+\^\$\[\]\\(){}|-])/g, "\\$1");
+		return (str + "").replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
 	}
 
 	function extractHtmlText(s) {
@@ -9771,6 +10154,7 @@
 			re,
 			reHighlight,
 			temp,
+			prevEnableUpdate,
 			count = 0,
 			treeOpts = this.options,
 			escapeTitles = treeOpts.escapeTitles,
@@ -9838,6 +10222,8 @@
 		this.enableFilter = true;
 		this.lastFilterArgs = arguments;
 
+		prevEnableUpdate = this.enableUpdate(false);
+
 		this.$div.addClass("fancytree-ext-filter");
 		if (hideMode) {
 			this.$div.addClass("fancytree-ext-filter-hide");
@@ -9920,7 +10306,9 @@
 			this.getRootNode().addNode(statusNode).match = true;
 		}
 		// Redraw whole tree
-		this.render();
+		this._callHook("treeStructureChanged", this, "applyFilter");
+		// this.render();
+		this.enableUpdate(prevEnableUpdate);
 		return count;
 	};
 
@@ -9946,16 +10334,6 @@
 		return this._applyFilterImpl(filter, false, opts);
 	};
 
-	/**
-	 * @deprecated
-	 */
-	$.ui.fancytree._FancytreeClass.prototype.applyFilter = function(filter) {
-		this.warn(
-			"Fancytree.applyFilter() is deprecated since 2.1.0 / 2014-05-29. Use .filterNodes() instead."
-		);
-		return this.filterNodes.apply(this, arguments);
-	};
-
 	/**
 	 * [ext-filter] Dimm or hide whole branches.
 	 *
@@ -9982,7 +10360,8 @@
 		var $title,
 			statusNode = this.getRootNode()._findDirectChild(KeyNoData),
 			escapeTitles = this.options.escapeTitles,
-			enhanceTitle = this.options.enhanceTitle;
+			enhanceTitle = this.options.enhanceTitle,
+			prevEnableUpdate = this.enableUpdate(false);
 
 		if (statusNode) {
 			statusNode.remove();
@@ -10024,7 +10403,9 @@
 		this.$div.removeClass(
 			"fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"
 		);
-		this.render();
+		this._callHook("treeStructureChanged", this, "clearFilter");
+		// this.render();
+		this.enableUpdate(prevEnableUpdate);
 	};
 
 	/**
@@ -10056,7 +10437,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "filter",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autoApply: true, // Re-apply last filter if lazy data is loaded
@@ -10071,28 +10452,29 @@
 			mode: "dimm", // Grayout unmatched nodes (pass "hide" to remove unmatched node instead)
 		},
 		nodeLoadChildren: function(ctx, source) {
+			var tree = ctx.tree;
+
 			return this._superApply(arguments).done(function() {
 				if (
-					ctx.tree.enableFilter &&
-					ctx.tree.lastFilterArgs &&
+					tree.enableFilter &&
+					tree.lastFilterArgs &&
 					ctx.options.filter.autoApply
 				) {
-					ctx.tree._applyFilterImpl.apply(
-						ctx.tree,
-						ctx.tree.lastFilterArgs
-					);
+					tree._applyFilterImpl.apply(tree, tree.lastFilterArgs);
 				}
 			});
 		},
 		nodeSetExpanded: function(ctx, flag, callOpts) {
-			delete ctx.node._filterAutoExpanded;
+			var node = ctx.node;
+
+			delete node._filterAutoExpanded;
 			// Make sure counter badge is displayed again, when node is beeing collapsed
 			if (
 				!flag &&
 				ctx.options.filter.hideExpandedCounter &&
-				ctx.node.$subMatchBadge
+				node.$subMatchBadge
 			) {
-				ctx.node.$subMatchBadge.show();
+				node.$subMatchBadge.show();
 			}
 			return this._superApply(arguments);
 		},
@@ -10139,7 +10521,7 @@
 				node.$subMatchBadge.hide();
 			}
 			// node.debug("nodeRenderStatus", node.titleWithHighlight, node.title)
-			// #601: also chek for $title.length, because we don't need to render
+			// #601: also check for $title.length, because we don't need to render
 			// if node.span is null (i.e. not rendered)
 			if (node.span && (!node.isEditing || !node.isEditing.call(node))) {
 				if (node.titleWithHighlight) {
@@ -10169,13 +10551,13 @@
  * Use glyph-fonts, ligature-fonts, or SVG icons instead of icon sprites.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -10335,12 +10717,13 @@
 		var map = opts.map,
 			icon = map[type],
 			$span = $(span),
+			$counter = $span.find(".fancytree-childcounter"),
 			setClass = baseClass + " " + (map._addClass || "");
 
 		if (typeof icon === "string") {
 			// #883: remove inner html that may be added by prev. mode
 			span.innerHTML = "";
-			$span.attr("class", setClass + " " + icon);
+			$span.attr("class", setClass + " " + icon).append($counter);
 		} else if (icon) {
 			if (icon.text) {
 				span.textContent = "" + icon.text;
@@ -10349,13 +10732,15 @@
 			} else {
 				span.innerHTML = "";
 			}
-			$span.attr("class", setClass + " " + (icon.addClass || ""));
+			$span
+				.attr("class", setClass + " " + (icon.addClass || ""))
+				.append($counter);
 		}
 	}
 
 	$.ui.fancytree.registerExtension({
 		name: "glyph",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			preset: null, // 'awesome3', 'awesome4', 'bootstrap3', 'material'
@@ -10430,11 +10815,12 @@
 						icon
 					);
 				} else {
+					// eslint-disable-next-line no-nested-ternary
 					icon = node.selected
 						? "checkboxSelected"
 						: node.partsel
-							? "checkboxUnknown"
-							: "checkbox";
+						? "checkboxUnknown"
+						: "checkbox";
 					// span.className = "fancytree-checkbox " + map[icon];
 					setIcon(span, "fancytree-checkbox", opts, icon);
 				}
@@ -10502,13 +10888,13 @@
  * Support keyboard navigation for trees with embedded input controls.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -10625,7 +11011,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "gridnav",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autofocusInput: false, // Focus first embedded input if node gets activated
@@ -10677,7 +11063,10 @@
 					// Set focus to input sub input (if node was clicked, but not
 					// when TAB was pressed )
 					$outer = $(node.tr || node.span);
-					$outer.find(":input:enabled:first").focus();
+					$outer
+						.find(":input:enabled")
+						.first()
+						.focus();
 				}
 			}
 		},
@@ -10723,13 +11112,13 @@
  * Allow multiple selection of nodes  by mouse or keyboard.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -10758,7 +11147,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "multi",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			allowNoSelect: false, //
@@ -10854,13 +11243,13 @@
  *
  * @depends: js-cookie or jquery-cookie
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -10936,8 +11325,8 @@
 	}
 
 	/* Recursively load lazy nodes
- * @param {string} mode 'load', 'expand', false
- */
+	 * @param {string} mode 'load', 'expand', false
+	 */
 	function _loadLazyNodes(tree, local, keyList, mode, dfd) {
 		var i,
 			key,
@@ -11060,7 +11449,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "persist",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			cookieDelimiter: "~",
@@ -11347,13 +11736,13 @@
  * Render tree as table (aka 'tree grid', 'table tree').
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -11434,24 +11823,14 @@
 		return prev;
 	}
 
-	/* Render callback for 'wide' mode. */
-	// function _renderStatusNodeWide(event, data) {
-	// 	var node = data.node,
-	// 		nodeColumnIdx = data.options.table.nodeColumnIdx,
-	// 		$tdList = $(node.tr).find(">td");
-
-	// 	$tdList.eq(nodeColumnIdx).attr("colspan", data.tree.columnCount);
-	// 	$tdList.not(":eq(" + nodeColumnIdx + ")").remove();
-	// }
-
 	$.ui.fancytree.registerExtension({
 		name: "table",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			checkboxColumnIdx: null, // render the checkboxes into the this column index (default: nodeColumnIdx)
-			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
 			indentation: 16, // indent every node level by 16px
+			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
 			nodeColumnIdx: 0, // render node expander, icon, and title to this column (default: #0)
 		},
 		// Overide virtual methods for this extension.
@@ -11468,15 +11847,15 @@
 				$table = tree.widget.element;
 
 			if (tableOpts.customStatus != null) {
-				if (opts.renderStatusColumns != null) {
-					$.error(
-						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
-					);
-				} else {
+				if (opts.renderStatusColumns == null) {
 					tree.warn(
 						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."
 					);
 					opts.renderStatusColumns = tableOpts.customStatus;
+				} else {
+					$.error(
+						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
+					);
 				}
 			}
 			if (opts.renderStatusColumns) {
@@ -11503,9 +11882,11 @@
 
 			// Prepare row templates:
 			// Determine column count from table header if any
-			tree.columnCount = $("thead >tr:last >th", $table).length;
+			tree.columnCount = $("thead >tr", $table)
+				.last()
+				.find(">th", $table).length;
 			// Read TR templates from tbody if any
-			$row = $tbody.children("tr:first");
+			$row = $tbody.children("tr").first();
 			if ($row.length) {
 				n = $row.children("td").length;
 				if (tree.columnCount && n !== tree.columnCount) {
@@ -11541,7 +11922,7 @@
 			tree.rowFragment.appendChild($row.get(0));
 
 			// // If tbody contains a second row, use this as status node template
-			// $row = $tbody.children("tr:eq(1)");
+			// $row = $tbody.children("tr").eq(1);
 			// if( $row.length === 0 ) {
 			// 	tree.statusRowFragment = tree.rowFragment;
 			// } else {
@@ -11622,7 +12003,15 @@
 				if (node.tr && force) {
 					this.nodeRemoveMarkup(ctx);
 				}
-				if (!node.tr) {
+				if (node.tr) {
+					if (force) {
+						// Set icon, link, and title (normally this is only required on initial render)
+						this.nodeRenderTitle(ctx); // triggers renderColumns()
+					} else {
+						// Update element classes according to node state
+						this.nodeRenderStatus(ctx);
+					}
+				} else {
 					if (ctx.hasCollapsedParents && !deep) {
 						// #166: we assume that the parent will be (recursively) rendered
 						// later anyway.
@@ -11646,15 +12035,15 @@
 						newRow.style.display = "none";
 						//					newRow.style.color = "red";
 					}
-					if (!prevNode.tr) {
+					if (prevNode.tr) {
+						insertSiblingAfter(prevNode.tr, newRow);
+					} else {
 						_assert(
 							!prevNode.parent,
 							"prev. row must have a tr, or be system root"
 						);
 						// tree.tbody.appendChild(newRow);
 						insertFirstChild(tree.tbody, newRow); // #675
-					} else {
-						insertSiblingAfter(prevNode.tr, newRow);
 					}
 					node.tr = newRow;
 					if (node.key && opts.generateIds) {
@@ -11672,14 +12061,6 @@
 					if (opts.createNode) {
 						opts.createNode.call(tree, { type: "createNode" }, ctx);
 					}
-				} else {
-					if (force) {
-						// Set icon, link, and title (normally this is only required on initial render)
-						this.nodeRenderTitle(ctx); // triggers renderColumns()
-					} else {
-						// Update element classes according to node state
-						this.nodeRenderStatus(ctx);
-					}
 				}
 			}
 			// Allow tweaking after node state was rendered
@@ -11760,13 +12141,13 @@
 				if (opts.renderStatusColumns) {
 					// Let user code write column content
 					opts.renderStatusColumns.call(
-						ctx.tree,
+						tree,
 						{ type: "renderStatusColumns" },
 						ctx
 					);
 				} else if (opts.table.mergeStatusColumns && node.isTopLevel()) {
-					var $tdList = $(node.tr).find(">td");
-					$tdList
+					$(node.tr)
+						.find(">td")
 						.eq(0)
 						.prop("colspan", tree.columnCount)
 						.text(node.title)
@@ -11775,11 +12156,7 @@
 						.remove();
 				} // else: default rendering for status node: leave other cells empty
 			} else if (opts.renderColumns) {
-				opts.renderColumns.call(
-					ctx.tree,
-					{ type: "renderColumns" },
-					ctx
-				);
+				opts.renderColumns.call(tree, { type: "renderColumns" }, ctx);
 			}
 			return res;
 		},
@@ -11884,7 +12261,9 @@
 		},
 		treeDestroy: function(ctx) {
 			this.$container.find("tbody").empty();
-			this.$source && this.$source.removeClass("fancytree-helper-hidden");
+			if (this.$source) {
+				this.$source.removeClass("fancytree-helper-hidden");
+			}
 			return this._superApply(arguments);
 		},
 		/*,
@@ -11906,13 +12285,13 @@
  *
  * @see http://jqueryui.com/themeroller/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -11935,7 +12314,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "themeroller",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			activeClass: "ui-state-active", // Class added to active node
@@ -11961,9 +12340,7 @@
 				$el.addClass("ui-widget ui-widget-content ui-corner-all");
 			}
 
-			$el.delegate(".fancytree-node", "mouseenter mouseleave", function(
-				event
-			) {
+			$el.on("mouseenter mouseleave", ".fancytree-node", function(event) {
 				var node = $.ui.fancytree.getNode(event.target),
 					flag = event.type === "mouseenter";
 
@@ -12027,13 +12404,13 @@
  * Support for 100% wide selection bars.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -12163,7 +12540,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "wide",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			iconWidth: null, // Adjust this if @fancy-icon-width != "16px"
diff --git a/dist/jquery.fancytree-all.min.js b/dist/jquery.fancytree-all.min.js
index 216cee06..46c1838e 100644
--- a/dist/jquery.fancytree-all.min.js
+++ b/dist/jquery.fancytree-all.min.js
@@ -1,4 +1,4 @@
-/*! jQuery Fancytree Plugin - 2.30.2 - 2019-01-13T08:17:01Z
+/*! jQuery Fancytree Plugin - 2.31.0 - 2019-05-31T11:32:38Z
   * https://github.com/mar10/fancytree
   * Copyright (c) 2019 Martin Wendt; Licensed MIT
  */
@@ -30,33 +30,33 @@
 	}
 }(function( $ ) {
 
-!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree.ui-deps"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree.ui-deps"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n){t||(n=n?": "+n:"",e.error("Fancytree assertion failed"+n))}function n(e,t){var n,i,r=window.console?window.console[e]:null;if(r)try{r.apply(window.console,t)}catch(e){for(i="",n=0;n<t.length;n++)i+=t[n];r(i)}}function i(){var t,n,r,o,s,a=arguments[0]||{},l=1,d=arguments.length;if("object"==typeof a||e.isFunction(a)||(a={}),l===d)throw"need at least two args";for(;l<d;l++)if(null!=(t=arguments[l]))for(n in t)r=a[n],a!==(o=t[n])&&(o&&e.isPlainObject(o)?(s=r&&e.isPlainObject(r)?r:{},a[n]=i(s,o)):void 0!==o&&(a[n]=o));return a}function r(e,t,n,i,r){return function(){var n=t[e],o=i[e],s=t.ext[r],a=function(){return n.apply(t,arguments)},l=function(e){return n.apply(t,e)};return function(){var e=t._local,n=t._super,i=t._superApply;try{return t._local=s,t._super=a,t._superApply=l,o.apply(t,arguments)}finally{t._local=e,t._super=n,t._superApply=i}}}()}function o(t,n,i,o){for(var s in i)"function"==typeof i[s]?"function"==typeof t[s]?t[s]=r(s,t,0,i,o):"_"===s.charAt(0)?t.ext[o][s]=r(s,t,0,i,o):e.error("Could not override tree."+s+". Use prefix '_' to create tree."+o+"._"+s):"options"!==s&&(t.ext[o][s]=i[s])}function s(t,n){return void 0===t?e.Deferred(function(){this.resolve()}).promise():e.Deferred(function(){this.resolveWith(t,n)}).promise()}function a(t,n){return void 0===t?e.Deferred(function(){this.reject()}).promise():e.Deferred(function(){this.rejectWith(t,n)}).promise()}function l(e,t){return function(){e.resolveWith(t)}}function d(t){var n=e.extend({},t.data()),i=n.json;return delete n.fancytree,delete n.uiFancytree,i&&(delete n.json,n=e.extend(n,i)),n}function c(e){return(""+e).replace(m,function(e){return k[e]})}function u(e){return e=e.toLowerCase(),function(t){return t.title.toLowerCase().indexOf(e)>=0}}function h(n,i){var r,o,s,a;for(this.parent=n,this.tree=n.tree,this.ul=null,this.li=null,this.statusNodeType=null,this._isLoading=!1,this._error=null,this.data={},r=0,o=L.length;r<o;r++)this[s=L[r]]=i[s];null==this.unselectableIgnore&&null==this.unselectableStatus||(this.unselectable=!0),i.hideCheckbox&&e.error("'hideCheckbox' node option was removed in v2.23.0: use 'checkbox: false'"),i.data&&e.extend(this.data,i.data);for(s in i)A[s]||e.isFunction(i[s])||F[s]||(this.data[s]=i[s]);null==this.key?this.tree.options.defaultKey?(this.key=this.tree.options.defaultKey(this),t(this.key,"defaultKey() must return a unique key")):this.key="_"+v._nextNodeKey++:this.key=""+this.key,i.active&&(t(null===this.tree.activeNode,"only one active node allowed"),this.tree.activeNode=this),i.selected&&(this.tree.lastSelectedNode=this),(a=i.children)?a.length?this._setChildren(a):this.children=this.lazy?[]:null:this.children=null,this.tree._callHook("treeRegisterNode",this.tree,!0,this)}function f(t){this.widget=t,this.$div=t.element,this.options=t.options,this.options&&(e.isFunction(this.options.lazyload)&&!e.isFunction(this.options.lazyLoad)&&(this.options.lazyLoad=function(){return v.warn("The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."),t.options.lazyload.apply(this,arguments)}),e.isFunction(this.options.loaderror)&&e.error("The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."),void 0!==this.options.fx&&v.warn("The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."),void 0!==this.options.removeNode&&e.error("The 'removeNode' event was replaced by 'modifyChild' since 2.20 (2016-09-10).")),this.ext={},this.types={},this.columns={},this.data=d(this.$div),this._id=e.ui.fancytree._nextId++,this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this._tempCache={},this._lastMousedownNode=null,this._enableUpdate=!0,this.lastSelectedNode=null,this.systemFocusElement=null,this.lastQuicksearchTerm="",this.lastQuicksearchTime=0,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var n,i={tree:this};this.rootNode=new h(i,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,n=e("<ul>",{class:"ui-fancytree fancytree-container fancytree-plain"}).appendTo(this.$div),this.$container=n,this.rootNode.ul=n[0],null==this.options.debugLevel&&(this.options.debugLevel=v.debugLevel)}{if(!e.ui||!e.ui.fancytree){var p,g,v=null,y=new RegExp(/\.|\//),b=/[&<>"'\/]/g,m=/[<>"'\/]/g,x="$recursive_request",k={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;","/":"&#x2F;"},N={16:!0,17:!0,18:!0},_={8:"backspace",9:"tab",10:"return",13:"return",19:"pause",20:"capslock",27:"esc",32:"space",33:"pageup",34:"pagedown",35:"end",36:"home",37:"left",38:"up",39:"right",40:"down",45:"insert",46:"del",59:";",61:"=",96:"0",97:"1",98:"2",99:"3",100:"4",101:"5",102:"6",103:"7",104:"8",105:"9",106:"*",107:"+",109:"-",110:".",111:"/",112:"f1",113:"f2",114:"f3",115:"f4",116:"f5",117:"f6",118:"f7",119:"f8",120:"f9",121:"f10",122:"f11",123:"f12",144:"numlock",145:"scroll",173:"-",186:";",187:"=",188:",",189:"-",190:".",191:"/",192:"`",219:"[",220:"\\",221:"]",222:"'"},C={16:"shift",17:"ctrl",18:"alt",91:"meta",93:"meta"},w={0:"",1:"left",2:"middle",3:"right"},S="active expanded focus folder lazy radiogroup selected unselectable unselectableIgnore".split(" "),E={},T="columns types".split(" "),L="checkbox expanded extraClasses folder icon iconTooltip key lazy partsel radiogroup refKey selected statusNodeType title tooltip type unselectable unselectableIgnore unselectableStatus".split(" "),A={},P={},F={active:!0,children:!0,data:!0,focus:!0};for(p=0;p<S.length;p++)E[S[p]]=!0;for(p=0;p<L.length;p++)g=L[p],A[g]=!0,g!==g.toLowerCase()&&(P[g.toLowerCase()]=g);return t(e.ui,"Fancytree requires jQuery UI (http://jqueryui.com)"),Date.now||(Date.now=function(){return(new Date).getTime()}),h.prototype={_findDirectChild:function(e){var t,n,i=this.children;if(i)if("string"==typeof e){for(t=0,n=i.length;t<n;t++)if(i[t].key===e)return i[t]}else{if("number"==typeof e)return this.children[e];if(e.parent===this)return e}return null},_setChildren:function(e){t(e&&(!this.children||0===this.children.length),"only init supported"),this.children=[];for(var n=0,i=e.length;n<i;n++)this.children.push(new h(this,e[n]))},addChildren:function(n,i){var r,o,s,a=this.getFirstChild(),l=this.getLastChild(),d=null,c=[];for(e.isPlainObject(n)&&(n=[n]),this.children||(this.children=[]),r=0,o=n.length;r<o;r++)c.push(new h(this,n[r]));if(d=c[0],null==i?this.children=this.children.concat(c):(i=this._findDirectChild(i),t((s=e.inArray(i,this.children))>=0,"insertBefore must be an existing child"),this.children.splice.apply(this.children,[s,0].concat(c))),a&&!i){for(r=0,o=c.length;r<o;r++)c[r].render();a!==this.getFirstChild()&&a.renderStatus(),l!==this.getLastChild()&&l.renderStatus()}else(!this.parent||this.parent.ul||this.tr)&&this.render();return 3===this.tree.options.selectMode&&this.fixSelection3FromEndNodes(),this.triggerModifyChild("add",1===c.length?c[0]:null),d},addClass:function(e){return this.toggleClass(e,!0)},addNode:function(e,n){switch(void 0!==n&&"over"!==n||(n="child"),n){case"after":return this.getParent().addChildren(e,this.getNextSibling());case"before":return this.getParent().addChildren(e,this);case"firstChild":var i=this.children?this.children[0]:null;return this.addChildren(e,i);case"child":case"over":return this.addChildren(e)}t(!1,"Invalid mode: "+n)},addPagingNode:function(t,n){var i,r;n=n||"child";{if(!1!==t)return t=e.extend({title:this.tree.options.strings.moreData,statusNodeType:"paging",icon:!1},t),this.partload=!0,this.addNode(t,n);for(i=this.children.length-1;i>=0;i--)"paging"===(r=this.children[i]).statusNodeType&&this.removeChild(r);this.partload=!1}},appendSibling:function(e){return this.addNode(e,"after")},applyPatch:function(t){if(null===t)return this.remove(),s(this);var n,i,r={children:!0,expanded:!0,parent:!0};for(n in t)i=t[n],r[n]||e.isFunction(i)||(A[n]?this[n]=i:this.data[n]=i);return t.hasOwnProperty("children")&&(this.removeChildren(),t.children&&this._setChildren(t.children)),this.isVisible()&&(this.renderTitle(),this.renderStatus()),t.hasOwnProperty("expanded")?this.setExpanded(t.expanded):s(this)},collapseSiblings:function(){return this.tree._callHook("nodeCollapseSiblings",this)},copyTo:function(e,t,n){return e.addNode(this.toDict(!0,n),t)},countChildren:function(e){var t,n,i,r=this.children;if(!r)return 0;if(i=r.length,!1!==e)for(t=0,n=i;t<n;t++)i+=r[t].countChildren();return i},debug:function(e){this.tree.options.debugLevel>=4&&(Array.prototype.unshift.call(arguments,this.toString()),n("log",arguments))},discard:function(){return this.warn("FancytreeNode.discard() is deprecated since 2014-02-16. Use .resetLazy() instead."),this.resetLazy()},discardMarkup:function(e){var t=e?"nodeRemoveMarkup":"nodeRemoveChildMarkup";this.tree._callHook(t,this)},error:function(e){this.options.debugLevel>=1&&(Array.prototype.unshift.call(arguments,this.toString()),n("error",arguments))},findAll:function(t){t=e.isFunction(t)?t:u(t);var n=[];return this.visit(function(e){t(e)&&n.push(e)}),n},findFirst:function(t){t=e.isFunction(t)?t:u(t);var n=null;return this.visit(function(e){if(t(e))return n=e,!1}),n},_changeSelectStatusAttrs:function(e){var n=!1,i=this.tree.options,r=v.evalOption("unselectable",this,this,i,!1),o=v.evalOption("unselectableStatus",this,this,i,void 0);switch(r&&null!=o&&(e=o),e){case!1:n=this.selected||this.partsel,this.selected=!1,this.partsel=!1;break;case!0:n=!this.selected||!this.partsel,this.selected=!0,this.partsel=!0;break;case void 0:n=this.selected||!this.partsel,this.selected=!1,this.partsel=!0;break;default:t(!1,"invalid state: "+e)}return n&&this.renderStatus(),n},fixSelection3AfterClick:function(e){var t=this.isSelected();this.visit(function(e){e._changeSelectStatusAttrs(t)}),this.fixSelection3FromEndNodes(e)},fixSelection3FromEndNodes:function(e){function n(e){var t,r,o,s,a,l,d,c,u=e.children;if(u&&u.length){for(l=!0,d=!1,t=0,r=u.length;t<r;t++)s=n(o=u[t]),v.evalOption("unselectableIgnore",o,o,i,!1)||(!1!==s&&(d=!0),!0!==s&&(l=!1));a=!!l||!!d&&void 0}else a=null==(c=v.evalOption("unselectableStatus",e,e,i,void 0))?!!e.selected:!!c;return e._changeSelectStatusAttrs(a),a}var i=this.tree.options;t(3===i.selectMode,"expected selectMode 3"),n(this),this.visitParents(function(e){var t,n,r,o,s,a=e.children,l=!0,d=!1;for(t=0,n=a.length;t<n;t++)r=a[t],v.evalOption("unselectableIgnore",r,r,i,!1)||(((o=null==(s=v.evalOption("unselectableStatus",r,r,i,void 0))?!!r.selected:!!s)||r.partsel)&&(d=!0),o||(l=!1));o=!!l||!!d&&void 0,e._changeSelectStatusAttrs(o)})},fromDict:function(t){for(var n in t)A[n]?this[n]=t[n]:"data"===n?e.extend(this.data,t.data):e.isFunction(t[n])||F[n]||(this.data[n]=t[n]);t.children&&(this.removeChildren(),this.addChildren(t.children)),this.renderTitle()},getChildren:function(){if(void 0!==this.hasChildren())return this.children},getFirstChild:function(){return this.children?this.children[0]:null},getIndex:function(){return e.inArray(this,this.parent.children)},getIndexHier:function(t,n){t=t||".";var i,r=[];return e.each(this.getParentList(!1,!0),function(e,t){i=""+(t.getIndex()+1),n&&(i=("0000000"+i).substr(-n)),r.push(i)}),r.join(t)},getKeyPath:function(e){var t=[],n=this.tree.options.keyPathSeparator;return this.visitParents(function(e){e.parent&&t.unshift(e.key)},!e),n+t.join(n)},getLastChild:function(){return this.children?this.children[this.children.length-1]:null},getLevel:function(){for(var e=0,t=this.parent;t;)e++,t=t.parent;return e},getNextSibling:function(){if(this.parent){var e,t,n=this.parent.children;for(e=0,t=n.length-1;e<t;e++)if(n[e]===this)return n[e+1]}return null},getParent:function(){return this.parent},getParentList:function(e,t){for(var n=[],i=t?this:this.parent;i;)(e||i.parent)&&n.unshift(i),i=i.parent;return n},getPrevSibling:function(){if(this.parent){var e,t,n=this.parent.children;for(e=1,t=n.length;e<t;e++)if(n[e]===this)return n[e-1]}return null},getSelectedNodes:function(e){var t=[];return this.visit(function(n){if(n.selected&&(t.push(n),!0===e))return"skip"}),t},hasChildren:function(){if(this.lazy){if(null==this.children)return;if(0===this.children.length)return!1;if(1===this.children.length&&this.children[0].isStatusNode())return;return!0}return!(!this.children||!this.children.length)},hasFocus:function(){return this.tree.hasFocus()&&this.tree.focusNode===this},info:function(e){this.tree.options.debugLevel>=3&&(Array.prototype.unshift.call(arguments,this.toString()),n("info",arguments))},isActive:function(){return this.tree.activeNode===this},isBelowOf:function(e){return this.getIndexHier(".",5)>e.getIndexHier(".",5)},isChildOf:function(e){return this.parent&&this.parent===e},isDescendantOf:function(t){if(!t||t.tree!==this.tree)return!1;for(var n=this.parent;n;){if(n===t)return!0;n===n.parent&&e.error("Recursive parent link: "+n),n=n.parent}return!1},isExpanded:function(){return!!this.expanded},isFirstSibling:function(){var e=this.parent;return!e||e.children[0]===this},isFolder:function(){return!!this.folder},isLastSibling:function(){var e=this.parent;return!e||e.children[e.children.length-1]===this},isLazy:function(){return!!this.lazy},isLoaded:function(){return!this.lazy||void 0!==this.hasChildren()},isLoading:function(){return!!this._isLoading},isRoot:function(){return this.isRootNode()},isPartsel:function(){return!this.selected&&!!this.partsel},isPartload:function(){return!!this.partload},isRootNode:function(){return this.tree.rootNode===this},isSelected:function(){return!!this.selected},isStatusNode:function(){return!!this.statusNodeType},isPagingNode:function(){return"paging"===this.statusNodeType},isTopLevel:function(){return this.tree.rootNode===this.parent},isUndefined:function(){return void 0===this.hasChildren()},isVisible:function(){var e,t,n=this.getParentList(!1,!1);for(e=0,t=n.length;e<t;e++)if(!n[e].expanded)return!1;return!0},lazyLoad:function(e){return this.warn("FancytreeNode.lazyLoad() is deprecated since 2014-02-16. Use .load() instead."),this.load(e)},load:function(e){var n,i,r=this,o=this.isExpanded();return t(this.isLazy(),"load() requires a lazy node"),e||this.isUndefined()?(this.isLoaded()&&this.resetLazy(),!1===(i=this.tree._triggerNodeEvent("lazyLoad",this))?s(this):(t("boolean"!=typeof i,"lazyLoad event must return source in data.result"),n=this.tree._callHook("nodeLoadChildren",this,i),o?(this.expanded=!0,n.always(function(){r.render()})):n.always(function(){r.renderStatus()}),n)):s(this)},makeVisible:function(t){var n,i=this,r=[],o=new e.Deferred,s=this.getParentList(!1,!1),a=s.length,l=!(t&&!0===t.noAnimation),d=!(t&&!1===t.scrollIntoView);for(n=a-1;n>=0;n--)r.push(s[n].setExpanded(!0,t));return e.when.apply(e,r).done(function(){d?i.scrollIntoView(l).done(function(){o.resolve()}):o.resolve()}),o.promise()},moveTo:function(n,i,r){void 0===i||"over"===i?i="child":"firstChild"===i&&(n.children&&n.children.length?(i="before",n=n.children[0]):i="child");var o,s=this.parent,a="child"===i?n:n.parent;if(this!==n){if(this.parent?a.isDescendantOf(this)&&e.error("Cannot move a node to its own descendant"):e.error("Cannot move system root"),a!==s&&s.triggerModifyChild("remove",this),1===this.parent.children.length){if(this.parent===a)return;this.parent.children=this.parent.lazy?[]:null,this.parent.expanded=!1}else t((o=e.inArray(this,this.parent.children))>=0,"invalid source parent"),this.parent.children.splice(o,1);if(this.parent=a,a.hasChildren())switch(i){case"child":a.children.push(this);break;case"before":t((o=e.inArray(n,a.children))>=0,"invalid target parent"),a.children.splice(o,0,this);break;case"after":t((o=e.inArray(n,a.children))>=0,"invalid target parent"),a.children.splice(o+1,0,this);break;default:e.error("Invalid mode "+i)}else a.children=[this];r&&n.visit(r,!0),a===s?a.triggerModifyChild("move",this):a.triggerModifyChild("add",this),this.tree!==n.tree&&(this.warn("Cross-tree moveTo is experimantal!"),this.visit(function(e){e.tree=n.tree},!0)),s.isDescendantOf(a)||s.render(),a.isDescendantOf(s)||a===s||a.render()}},navigate:function(t,n){function i(i){if(i){try{i.makeVisible({scrollIntoView:!1})}catch(e){}return e(i.span).is(":visible")?!1===n?i.setFocus():i.setActive():(i.debug("Navigate: skipping hidden node"),void i.navigate(t,n))}}var r,o,a,l=e.ui.keyCode,d=null;switch(t){case l.BACKSPACE:this.parent&&this.parent.parent&&(a=i(this.parent));break;case l.HOME:this.tree.visit(function(t){if(e(t.span).is(":visible"))return a=i(t),!1});break;case l.END:this.tree.visit(function(t){e(t.span).is(":visible")&&(a=t)}),a&&(a=i(a));break;case l.LEFT:this.expanded?(this.setExpanded(!1),a=i(this)):this.parent&&this.parent.parent&&(a=i(this.parent));break;case l.RIGHT:this.expanded||!this.children&&!this.lazy?this.children&&this.children.length&&(a=i(this.children[0])):(this.setExpanded(),a=i(this));break;case l.UP:for(d=this.getPrevSibling();d&&!e(d.span).is(":visible");)d=d.getPrevSibling();for(;d&&d.expanded&&d.children&&d.children.length;)d=d.children[d.children.length-1];!d&&this.parent&&this.parent.parent&&(d=this.parent),a=i(d);break;case l.DOWN:if(this.expanded&&this.children&&this.children.length)d=this.children[0];else for(r=(o=this.getParentList(!1,!0)).length-1;r>=0;r--){for(d=o[r].getNextSibling();d&&!e(d.span).is(":visible");)d=d.getNextSibling();if(d)break}a=i(d);break;default:!1}return a||s()},remove:function(){return this.parent.removeChild(this)},removeChild:function(e){return this.tree._callHook("nodeRemoveChild",this,e)},removeChildren:function(){return this.tree._callHook("nodeRemoveChildren",this)},removeClass:function(e){return this.toggleClass(e,!1)},render:function(e,t){return this.tree._callHook("nodeRender",this,e,t)},renderTitle:function(){return this.tree._callHook("nodeRenderTitle",this)},renderStatus:function(){return this.tree._callHook("nodeRenderStatus",this)},replaceWith:function(n){var i,r=this.parent,o=e.inArray(this,r.children),s=this;return t(this.isPagingNode(),"replaceWith() currently requires a paging status node"),(i=this.tree._callHook("nodeLoadChildren",this,n)).done(function(e){var t=s.children;for(p=0;p<t.length;p++)t[p].parent=r;r.children.splice.apply(r.children,[o+1,0].concat(t)),s.children=null,s.remove(),r.render()}).fail(function(){s.setExpanded()}),i},resetLazy:function(){this.removeChildren(),this.expanded=!1,this.lazy=!0,this.children=void 0,this.renderStatus()},scheduleAction:function(t,n){this.tree.timer&&(clearTimeout(this.tree.timer),this.tree.debug("clearTimeout(%o)",this.tree.timer)),this.tree.timer=null;var i=this;switch(t){case"cancel":break;case"expand":this.tree.timer=setTimeout(function(){i.tree.debug("setTimeout: trigger expand"),i.setExpanded(!0)},n);break;case"activate":this.tree.timer=setTimeout(function(){i.tree.debug("setTimeout: trigger activate"),i.setActive(!0)},n);break;default:e.error("Invalid mode "+t)}},scrollIntoView:function(n,i){if(void 0!==i&&function(e){return!(!e.tree||void 0===e.statusNodeType)}(i))throw"scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead.";var r=e.extend({effects:!0===n?{duration:200,queue:!1}:n,scrollOfs:this.tree.options.scrollOfs,scrollParent:this.tree.options.scrollParent,topNode:null},i),o=r.scrollParent,a=this.tree.$container,l=a.css("overflow-y");o?o.jquery||(o=e(o)):o=this.tree.tbody?a.scrollParent():"scroll"===l||"auto"===l?a:a.scrollParent(),o[0]!==document&&o[0]!==document.body||(this.debug("scrollIntoView(): normalizing scrollParent to 'window':",o[0]),o=e(window));var d,c,u,h=new e.Deferred,f=this,p=e(this.span).height(),g=r.scrollOfs.top||0,v=r.scrollOfs.bottom||0,y=o.height(),b=o.scrollTop(),m=o,x=o[0]===window,k=r.topNode||null,N=null;return e(this.span).is(":visible")?(x?(c=e(this.span).offset().top,d=k&&k.span?e(k.span).offset().top:0,m=e("html,body")):(t(o[0]!==document&&o[0]!==document.body,"scrollParent should be a simple element or `window`, not document or body."),u=o.offset().top,c=e(this.span).offset().top-u+b,d=k?e(k.span).offset().top-u+b:0,y-=Math.max(0,o.innerHeight()-o[0].clientHeight)),c<b+g?N=c-g:c+p>b+y-v&&(N=c+p-y+v,k&&(t(k.isRootNode()||e(k.span).is(":visible"),"topNode must be visible"),d<N&&(N=d-g))),null!==N?r.effects?(r.effects.complete=function(){h.resolveWith(f)},m.stop(!0).animate({scrollTop:N},r.effects)):(m[0].scrollTop=N,h.resolveWith(this)):h.resolveWith(this),h.promise()):(this.warn("scrollIntoView(): node is invisible."),s())},setActive:function(e,t){return this.tree._callHook("nodeSetActive",this,e,t)},setExpanded:function(e,t){return this.tree._callHook("nodeSetExpanded",this,e,t)},setFocus:function(e){return this.tree._callHook("nodeSetFocus",this,e)},setSelected:function(e,t){return this.tree._callHook("nodeSetSelected",this,e,t)},setStatus:function(e,t,n){return this.tree._callHook("nodeSetStatus",this,e,t,n)},setTitle:function(e){this.title=e,this.renderTitle(),this.triggerModify("rename")},sortChildren:function(e,t){var n,i,r=this.children;if(r){if(e=e||function(e,t){var n=e.title.toLowerCase(),i=t.title.toLowerCase();return n===i?0:n>i?1:-1},r.sort(e),t)for(n=0,i=r.length;n<i;n++)r[n].children&&r[n].sortChildren(e,"$norender$");"$norender$"!==t&&this.render(),this.triggerModifyChild("sort")}},toDict:function(t,n){var i,r,o,s={},a=this;if(e.each(L,function(e,t){(a[t]||!1===a[t])&&(s[t]=a[t])}),e.isEmptyObject(this.data)||(s.data=e.extend({},this.data),e.isEmptyObject(s.data)&&delete s.data),n&&n(s,a),t&&this.hasChildren())for(s.children=[],i=0,r=this.children.length;i<r;i++)(o=this.children[i]).isStatusNode()||s.children.push(o.toDict(!0,n));return s},toggleClass:function(t,n){var i,r,o=t.match(/\S+/g)||[],s=0,a=!1,l=this[this.tree.statusClassPropName],d=" "+(this.extraClasses||"")+" ";for(l&&e(l).toggleClass(t,n);i=o[s++];)if(r=d.indexOf(" 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this.rootNode.visit(e,!1)},visitRows:function(e,t){if(t&&t.reverse)return delete t.reverse,this._visitRowsUp(e,t);var n,i,r,o=0,s=!1===t.includeSelf,a=!!t.includeHidden,l=t.start||this.rootNode.children[0];for(i=l.parent;i;){for(n=(r=i.children).indexOf(l)+o;n<r.length;n++){if(l=r[n],!s&&!1===e(l))return!1;if(s=!1,l.children&&l.children.length&&(a||l.expanded)&&!1===l.visit(function(t){return!1!==e(t)&&(a||!t.children||t.expanded?void 0:"skip")},!1))return!1}l=i,i=i.parent,o=1}return!0},_visitRowsUp:function(t,n){for(var i,r,o=!!n.includeHidden,s=n.start||this.rootNode.children[0];;){if(r=s.parent,(i=r.children)[0]===s)s=r,i=r.children;else for(s=i[i.indexOf(s)-1];(o||s.expanded)&&s.children&&s.children.length;)r=s,s=(i=s.children)[i.length-1];if((o||e(s.span).is(":visible"))&&!1===t(s))return!1}},warn:function(e){this.options.debugLevel>=2&&(Array.prototype.unshift.call(arguments,this.toString()),n("warn",arguments))}},e.extend(f.prototype,{nodeClick:function(e){var 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r=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:n,details:e.status+": "+n});i.rejectWith(this,[r])})),e.isFunction(i.then)&&e.isFunction(i.catch)&&(s=i,i=new e.Deferred,s.then(function(e){i.resolve(e)},function(e){i.reject(e)})),e.isFunction(i.promise))a.nodeSetStatus(n,"loading"),i.done(function(e){a.nodeSetStatus(n,"ok"),l._requestId=null}).fail(function(e){var t;e!==x?(e.node&&e.error&&e.message?t=e:"[object Object]"===(t=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:e?e.message||e.toString():""})).message&&(t.message=""),l.warn("Load children failed ("+t.message+")",t),!1!==a._triggerNodeEvent("loadError",t,null)&&a.nodeSetStatus(n,"error",t.message,t.details)):l.warn("Ignored response for obsolete load request #"+d+" (expected #"+l._requestId+")")});else if(n.options.postProcess){var c=a._triggerNodeEvent("postProcess",n,n.originalEvent,{response:i,error:null,dataType:typeof 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n=t.tree,i=t.node;i.children&&(this.activeNode&&this.activeNode.isDescendantOf(i)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(i)&&(this.focusNode=null),this.nodeRemoveChildMarkup(t),e.extend({},t),i.triggerModifyChild("remove",null),i.visit(function(e){e.parent=null,n._callHook("treeRegisterNode",n,!1,e)}),i.lazy?i.children=[]:i.children=null,i.isRootNode()||(i.expanded=!1),this.nodeRenderStatus(t))},nodeRemoveMarkup:function(t){var n=t.node;n.li&&(e(n.li).remove(),n.li=null),this.nodeRemoveChildMarkup(t)},nodeRender:function(n,i,r,o,s){var a,l,d,c,u,h,f,p=n.node,g=n.tree,v=n.options,y=v.aria,b=!1,m=p.parent,x=!m,k=p.children,N=null;if(!1!==g._enableUpdate&&(x||m.ul)){if(t(x||m.ul,"parent UL must exist"),x||(p.li&&(i||p.li.parentNode!==p.parent.ul)&&(p.li.parentNode===p.parent.ul?N=p.li.nextSibling:this.debug("Unlinking "+p+" (must be child of 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"+d,a),h=a.nextSibling,a.parentNode.removeChild(a),a=h):a=a.nextSibling;for(a=p.ul.firstChild,c=0,u=k.length-1;c<u;c++)(l=k[c])!==(d=a.ftnode)?p.ul.insertBefore(l.li,d.li):a=a.nextSibling}}else p.ul&&(this.warn("remove child markup for "+p),this.nodeRemoveChildMarkup(n));x||b&&m.ul.insertBefore(p.li,N)}},nodeRenderTitle:function(t,n){var i,r,o,s,a,l,d,u=t.node,h=t.tree,f=t.options,p=f.aria,g=u.getLevel(),b=[];void 0!==n&&(u.title=n),u.span&&!1!==h._enableUpdate&&(a=p&&!1!==u.hasChildren()?" role='button'":"",g<f.minExpandLevel?(u.lazy||(u.expanded=!0),g>1&&b.push("<span "+a+" class='fancytree-expander fancytree-expander-fixed'></span>")):b.push("<span "+a+" class='fancytree-expander'></span>"),(i=v.evalOption("checkbox",u,u,f,!1))&&!u.isStatusNode()&&(a=p?" role='checkbox'":"",r="fancytree-checkbox",("radio"===i||u.parent&&u.parent.radiogroup)&&(r+=" fancytree-radio"),b.push("<span "+a+" class='"+r+"'></span>")),void 0!==u.data.iconClass&&(u.icon?e.error("'iconClass' node option is deprecated since v2.14.0: use 'icon' only instead"):(u.warn("'iconClass' node option is deprecated since v2.14.0: use 'icon' instead"),u.icon=u.data.iconClass)),!1!==(o=v.evalOption("icon",u,u,f,!0))&&(a=p?" role='presentation'":"",d=(d=v.evalOption("iconTooltip",u,u,f,null))?" title='"+c(d)+"'":"","string"==typeof o?y.test(o)?(o="/"===o.charAt(0)?o:(f.imagePath||"")+o,b.push("<img src='"+o+"' class='fancytree-icon'"+d+" alt='' />")):b.push("<span "+a+" class='fancytree-custom-icon "+o+"'"+d+"></span>"):o.text?b.push("<span "+a+" class='fancytree-custom-icon "+(o.addClass||"")+"'"+d+">"+v.escapeHtml(o.text)+"</span>"):o.html?b.push("<span "+a+" class='fancytree-custom-icon "+(o.addClass||"")+"'"+d+">"+o.html+"</span>"):b.push("<span "+a+" class='fancytree-icon'"+d+"></span>")),s="",f.renderTitle&&(s=f.renderTitle.call(h,{type:"renderTitle"},t)||""),s||(!0===(l=v.evalOption("tooltip",u,u,f,null))&&(l=u.title),s="<span class='fancytree-title'"+(l=l?" title='"+c(l)+"'":"")+(f.titlesTabbable?" tabindex='0'":"")+">"+(f.escapeTitles?v.escapeHtml(u.title):u.title)+"</span>"),b.push(s),u.span.innerHTML=b.join(""),this.nodeRenderStatus(t),f.enhanceTitle&&(t.$title=e(">span.fancytree-title",u.span),s=f.enhanceTitle.call(h,{type:"enhanceTitle"},t)||""))},nodeRenderStatus:function(t){var n,i=t.node,r=t.tree,o=t.options,s=i.hasChildren(),a=i.isLastSibling(),l=o.aria,d=o._classNames,c=[],u=i[r.statusClassPropName];u&&!1!==r._enableUpdate&&(l&&(n=e(i.tr||i.li)),c.push(d.node),r.activeNode===i&&c.push(d.active),r.focusNode===i&&c.push(d.focused),i.expanded&&c.push(d.expanded),l&&(!1!==s?n.attr("aria-expanded",Boolean(i.expanded)):n.removeAttr("aria-expanded")),i.folder&&c.push(d.folder),!1!==s&&c.push(d.hasChildren),a&&c.push(d.lastsib),i.lazy&&null==i.children&&c.push(d.lazy),i.partload&&c.push(d.partload),i.partsel&&c.push(d.partsel),v.evalOption("unselectable",i,i,o,!1)&&c.push(d.unselectable),i._isLoading&&c.push(d.loading),i._error&&c.push(d.error),i.statusNodeType&&c.push(d.statusNodePrefix+i.statusNodeType),i.selected?(c.push(d.selected),l&&n.attr("aria-selected",!0)):l&&n.attr("aria-selected",!1),i.extraClasses&&c.push(i.extraClasses),!1===s?c.push(d.combinedExpanderPrefix+"n"+(a?"l":"")):c.push(d.combinedExpanderPrefix+(i.expanded?"e":"c")+(i.lazy&&null==i.children?"d":"")+(a?"l":"")),c.push(d.combinedIconPrefix+(i.expanded?"e":"c")+(i.folder?"f":"")),u.className=c.join(" "),i.li&&e(i.li).toggleClass(d.lastsib,a))},nodeSetActive:function(n,i,r){r=r||{};var o,l=n.node,d=n.tree,c=n.options,u=!0===r.noEvents,h=!0===r.noFocus,f=!1!==r.scrollIntoView;return i=!1!==i,l===d.activeNode===i?s(l):i&&!u&&!1===this._triggerNodeEvent("beforeActivate",l,n.originalEvent)?a(l,["rejected"]):(i?(d.activeNode&&(t(d.activeNode!==l,"node was active (inconsistency)"),o=e.extend({},n,{node:d.activeNode}),d.nodeSetActive(o,!1),t(null===d.activeNode,"deactivate was out of sync?")),c.activeVisible&&l.makeVisible({scrollIntoView:f}),d.activeNode=l,d.nodeRenderStatus(n),h||d.nodeSetFocus(n),u||d._triggerNodeEvent("activate",l,n.originalEvent)):(t(d.activeNode===l,"node was not active (inconsistency)"),d.activeNode=null,this.nodeRenderStatus(n),u||n.tree._triggerNodeEvent("deactivate",l,n.originalEvent)),s(l))},nodeSetExpanded:function(t,n,i){i=i||{};var r,o,l,d,c,u,h=t.node,f=t.tree,p=t.options,g=!0===i.noAnimation,v=!0===i.noEvents;if(n=!1!==n,h.expanded&&n||!h.expanded&&!n)return s(h);if(n&&!h.lazy&&!h.hasChildren())return s(h);if(!n&&h.getLevel()<p.minExpandLevel)return a(h,["locked"]);if(!v&&!1===this._triggerNodeEvent("beforeExpand",h,t.originalEvent))return a(h,["rejected"]);if(g||h.isVisible()||(g=i.noAnimation=!0),o=new e.Deferred,n&&!h.expanded&&p.autoCollapse){c=h.getParentList(!1,!0),u=p.autoCollapse;try{for(p.autoCollapse=!1,l=0,d=c.length;l<d;l++)this._callHook("nodeCollapseSiblings",c[l],i)}finally{p.autoCollapse=u}}return o.done(function(){var e=h.getLastChild();n&&p.autoScroll&&!g&&e?e.scrollIntoView(!0,{topNode:h}).always(function(){v||t.tree._triggerNodeEvent(n?"expand":"collapse",t)}):v||t.tree._triggerNodeEvent(n?"expand":"collapse",t)}),r=function(i){var r,o,s=p._classNames,a=p.toggleEffect;if(h.expanded=n,f._callHook("nodeRender",t,!1,!1,!0),h.ul)if(r="none"!==h.ul.style.display,o=!!h.expanded,r===o)h.warn("nodeSetExpanded: UL.style.display already set");else{if(a&&!g)return e(h.li).addClass(s.animating),void(e.isFunction(e(h.ul)[a.effect])?(f.debug("use jquery."+a.effect+" method"),e(h.ul)[a.effect]({duration:a.duration,always:function(){e(this).removeClass(s.animating),e(h.li).removeClass(s.animating),i()}})):(e(h.ul).stop(!0,!0),e(h.ul).parent().find(".ui-effects-placeholder").remove(),e(h.ul).toggle(a.effect,a.options,a.duration,function(){e(this).removeClass(s.animating),e(h.li).removeClass(s.animating),i()})));h.ul.style.display=h.expanded||!parent?"":"none"}i()},n&&h.lazy&&void 0===h.hasChildren()?h.load().done(function(){o.notifyWith&&o.notifyWith(h,["loaded"]),r(function(){o.resolveWith(h)})}).fail(function(e){r(function(){o.rejectWith(h,["load failed ("+e+")"])})}):r(function(){o.resolveWith(h)}),o.promise()},nodeSetFocus:function(t,n){var i,r=t.tree,o=t.node,s=r.options,a=!!t.originalEvent&&e(t.originalEvent.target).is(":input");if(n=!1!==n,r.focusNode){if(r.focusNode===o&&n)return;i=e.extend({},t,{node:r.focusNode}),r.focusNode=null,this._triggerNodeEvent("blur",i),this._callHook("nodeRenderStatus",i)}n&&(this.hasFocus()||(o.debug("nodeSetFocus: forcing container focus"),this._callHook("treeSetFocus",t,!0,{calledByNode:!0})),o.makeVisible({scrollIntoView:!1}),r.focusNode=o,s.titlesTabbable?a||e(o.span).find(".fancytree-title").focus():0===e(document.activeElement).closest(".fancytree-container").length&&e(r.$container).focus(),s.aria&&e(r.$container).attr("aria-activedescendant",e(o.tr||o.li).uniqueId().attr("id")),this._triggerNodeEvent("focus",t),s.autoScroll&&o.scrollIntoView(),this._callHook("nodeRenderStatus",t))},nodeSetSelected:function(e,t,n){n=n||{};var i=e.node,r=e.tree,o=e.options,s=!0===n.noEvents,a=i.parent;if(t=!1!==t,!v.evalOption("unselectable",i,i,o,!1)){if(i._lastSelectIntent=t,!!i.selected===t&&(3!==o.selectMode||!i.partsel||t))return t;if(!s&&!1===this._triggerNodeEvent("beforeSelect",i,e.originalEvent))return!!i.selected;t&&1===o.selectMode?(r.lastSelectedNode&&r.lastSelectedNode.setSelected(!1),i.selected=t):3!==o.selectMode||!a||a.radiogroup||i.radiogroup?a&&a.radiogroup?i.visitSiblings(function(e){e._changeSelectStatusAttrs(t&&e===i)},!0):i.selected=t:(i.selected=t,i.fixSelection3AfterClick(n)),this.nodeRenderStatus(e),r.lastSelectedNode=t?i:null,s||r._triggerNodeEvent("select",e)}},nodeSetStatus:function(t,n,i,r){function o(t,n){var i=s.children?s.children[0]:null;return i&&i.isStatusNode()?(e.extend(i,t),i.statusNodeType=n,a._callHook("nodeRenderTitle",i)):(s._setChildren([t]),s.children[0].statusNodeType=n,a.render()),s.children[0]}var s=t.node,a=t.tree;switch(n){case"ok":!function(){var e=s.children?s.children[0]:null;if(e&&e.isStatusNode()){try{s.ul&&(s.ul.removeChild(e.li),e.li=null)}catch(e){}1===s.children.length?s.children=[]:s.children.shift()}}(),s._isLoading=!1,s._error=null,s.renderStatus();break;case"loading":s.parent||o({title:a.options.strings.loading+(i?" ("+i+")":""),checkbox:!1,tooltip:r},n),s._isLoading=!0,s._error=null,s.renderStatus();break;case"error":o({title:a.options.strings.loadError+(i?" ("+i+")":""),checkbox:!1,tooltip:r},n),s._isLoading=!1,s._error={message:i,details:r},s.renderStatus();break;case"nodata":o({title:i||a.options.strings.noData,checkbox:!1,tooltip:r},n),s._isLoading=!1,s._error=null,s.renderStatus();break;default:e.error("invalid node status "+n)}},nodeToggleExpanded:function(e){return this.nodeSetExpanded(e,!e.node.expanded)},nodeToggleSelected:function(e){var t=e.node,n=!t.selected;return t.partsel&&!t.selected&&!0===t._lastSelectIntent&&(n=!1,t.selected=!0),t._lastSelectIntent=n,this.nodeSetSelected(e,n)},treeClear:function(e){var t=e.tree;t.activeNode=null,t.focusNode=null,t.$div.find(">ul.fancytree-container").empty(),t.rootNode.children=null},treeCreate:function(e){},treeDestroy:function(e){this.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("fancytree-helper-hidden")},treeInit:function(t){var n=t.tree,i=n.options;n.$container.attr("tabindex",i.tabindex),e.each(T,function(e,t){void 0!==i[t]&&(n.info("Move option "+t+" to tree"),n[t]=i[t],delete i[t])}),i.rtl?n.$container.attr("DIR","RTL").addClass("fancytree-rtl"):n.$container.removeAttr("DIR").removeClass("fancytree-rtl"),i.aria&&(n.$container.attr("role","tree"),1!==i.selectMode&&n.$container.attr("aria-multiselectable",!0)),this.treeLoad(t)},treeLoad:function(n,i){var r,o,s,a=n.tree,l=n.widget.element,c=e.extend({},n,{node:this.rootNode});if(a.rootNode.children&&this.treeClear(n),i=i||this.options.source)"string"==typeof i&&e.error("Not implemented");else switch(o=l.data("type")||"html"){case"html":(s=l.find(">ul:first")).addClass("ui-fancytree-source fancytree-helper-hidden"),i=e.ui.fancytree.parseHtml(s),this.data=e.extend(this.data,d(s));break;case"json":i=e.parseJSON(l.text()),l.contents().filter(function(){return 3===this.nodeType}).remove(),e.isPlainObject(i)&&(t(e.isArray(i.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),r=i,i=i.children,delete r.children,e.each(T,function(e,t){void 0!==r[t]&&(a[t]=r[t],delete r[t])}),e.extend(a.data,r));break;default:e.error("Invalid data-type: "+o)}return this.nodeLoadChildren(c,i).done(function(){a.render(),3===n.options.selectMode&&a.rootNode.fixSelection3FromEndNodes(),a.activeNode&&a.options.activeVisible&&a.activeNode.makeVisible(),a._triggerTreeEvent("init",null,{status:!0})}).fail(function(){a.render(),a._triggerTreeEvent("init",null,{status:!1})})},treeRegisterNode:function(e,t,n){},treeSetFocus:function(t,n,i){var r;(n=!1!==n)!==this.hasFocus()&&(this._hasFocus=n,!n&&this.focusNode?this.focusNode.setFocus(!1):!n||i&&i.calledByNode||e(this.$container).focus(),this.$container.toggleClass("fancytree-treefocus",n),this._triggerTreeEvent(n?"focusTree":"blurTree"),n&&!this.activeNode&&(r=this._lastMousedownNode||this.getFirstChild())&&r.setFocus())},treeSetOption:function(t,n,i){var r=t.tree,o=!0,s=!1,a=!1;switch(n){case"aria":case"checkbox":case"icon":case"minExpandLevel":case"tabindex":s=!0,a=!0;break;case"escapeTitles":case"tooltip":a=!0;break;case"rtl":!1===i?r.$container.removeAttr("DIR").removeClass("fancytree-rtl"):r.$container.attr("DIR","RTL").addClass("fancytree-rtl"),a=!0;break;case"source":o=!1,r._callHook("treeLoad",r,i),a=!0}r.debug("set option "+n+"="+i+" <"+typeof i+">"),o&&(this.widget._super?this.widget._super.call(this.widget,n,i):e.Widget.prototype._setOption.call(this.widget,n,i)),s&&r._callHook("treeCreate",r),a&&r.render(!0,!1)}}),e.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!0,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,escapeTitles:!1,extensions:[],toggleEffect:{effect:"slideToggle",duration:200},generateIds:!1,icon:!0,idPrefix:"ft_",focusOnSelect:!1,keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,nodata:!0,quicksearch:!1,rtl:!1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading...",loadError:"Load error!",moreData:"More...",noData:"No data."},tabindex:"0",titlesTabbable:!1,tooltip:!1,_classNames:{node:"fancytree-node",folder:"fancytree-folder",animating:"fancytree-animating",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partload:"fancytree-partload",partsel:"fancytree-partsel",radio:"fancytree-radio",unselectable:"fancytree-unselectable",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error",statusNodePrefix:"fancytree-statusnode-"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new f(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul:first");var n,r,s,a=this.options,l=a.extensions;this.tree;for(s=0;s<l.length;s++)r=l[s],(n=e.ui.fancytree._extensions[r])||e.error("Could not apply extension '"+r+"' (it is not registered, did you forget to include it?)"),this.tree.options[r]=i({},n.options,this.tree.options[r]),t(void 0===this.tree.ext[r],"Extension name must not exist as Fancytree.ext attribute: '"+r+"'"),this.tree.ext[r]={},o(this.tree,0,n,r),n;void 0!==a.icons&&(!0!==a.icon?e.error("'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'icons' tree option is deprecated since v2.14.0: use 'icon' instead"),a.icon=a.icons)),void 0!==a.iconClass&&(a.icon?e.error("'iconClass' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'iconClass' tree option is deprecated since v2.14.0: use 'icon' instead"),a.icon=a.iconClass)),void 0!==a.tabbable&&(a.tabindex=a.tabbable?"0":"-1",this.tree.warn("'tabbable' tree option is deprecated since v2.17.0: use 'tabindex='"+a.tabindex+"' instead")),this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(e,t){return this.tree._callHook("treeSetOption",this.tree,e,t)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),e.Widget.prototype.destroy.call(this)},_unbind:function(){var t=this.tree._ns;this.element.off(t),this.tree.$container.off(t),e(document).off(t)},_bind:function(){var t=this,n=this.options,i=this.tree,r=i._ns;this._unbind(),i.$container.on("focusin"+r+" focusout"+r,function(t){var n=v.getNode(t),r="focusin"===t.type;if(!r&&n&&e(t.target).is("a"))n.debug("Ignored focusout on embedded <a> element.");else{if(r){if(i._getExpiringValue("focusin"))return void i.debug("Ignored double focusin.");i._setExpiringValue("focusin",!0,50),n||(n=i._getExpiringValue("mouseDownNode"))&&i.debug("Reconstruct mouse target for focusin from recent event.")}n?i._callHook("nodeSetFocus",i._makeHookContext(n,t),r):i.tbody&&e(t.target).parents("table.fancytree-container > thead").length?i.debug("Ignore focus event outside table body.",t):i._callHook("treeSetFocus",i,r)}}).on("selectstart"+r,"span.fancytree-title",function(e){e.preventDefault()}).on("keydown"+r,function(e){if(n.disabled||!1===n.keyboard)return!0;var t,r=i.focusNode,o=i._makeHookContext(r||i,e),s=i.phase;try{return i.phase="userEvent","preventNav"===(t=r?i._triggerNodeEvent("keydown",r,e):i._triggerTreeEvent("keydown",e))?t=!0:!1!==t&&(t=i._callHook("nodeKeydown",o)),t}finally{i.phase=s}}).on("mousedown"+r,function(e){var t=v.getEventTarget(e);i._lastMousedownNode=t?t.node:null,i._setExpiringValue("mouseDownNode",i._lastMousedownNode)}).on("click"+r+" dblclick"+r,function(e){if(n.disabled)return!0;var i,r=v.getEventTarget(e),o=r.node,s=t.tree,a=s.phase;if(!o)return!0;i=s._makeHookContext(o,e);try{switch(s.phase="userEvent",e.type){case"click":return i.targetType=r.type,o.isPagingNode()?!0===s._triggerNodeEvent("clickPaging",i,e):!1!==s._triggerNodeEvent("click",i,e)&&s._callHook("nodeClick",i);case"dblclick":return 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i,r,o,s=this;return!n||!0!==e||!1!==(r=n(s))&&"skip"!==r?s.children||s.lazy?(i=new k.Deferred,o=[],s.load().done(function(){for(var e=0,t=s.children.length;e<t;e++){if(!1===(r=s.children[e].visitAndLoad(n,!0,!0))){i.reject();break}"skip"!==r&&o.push(r)}k.when.apply(this,o).then(function(){i.resolve()})}),i.promise()):w():t?r:w()},visitParents:function(e,t){if(t&&!1===e(this))return!1;for(var n=this.parent;n;){if(!1===e(n))return!1;n=n.parent}return!0},visitSiblings:function(e,t){var n,i,r,o=this.parent.children;for(n=0,i=o.length;n<i;n++)if(r=o[n],(t||r!==this)&&!1===e(r))return!1;return!0},warn:function(e){2<=this.tree.options.debugLevel&&(Array.prototype.unshift.call(arguments,this.toString()),d("warn",arguments))}},P.prototype={_makeHookContext:function(e,t,n){var i,r;return void 0!==e.node?(t&&e.originalEvent!==t&&k.error("invalid 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t="string"==typeof t?(i=new RegExp("^"+t,"i"),function(e){return i.test(e.title)}):t,n=n||e,this.visitRows(o,{start:n,includeSelf:!1}),r||n===e||this.visitRows(o,{start:e,includeSelf:!0}),r},findRelatedNode:function(e,t,n){var i=null,r=k.ui.keyCode;switch(t){case"parent":case r.BACKSPACE:e.parent&&e.parent.parent&&(i=e.parent);break;case"first":case r.HOME:this.visit(function(e){if(e.isVisible())return i=e,!1});break;case"last":case r.END:this.visit(function(e){e.isVisible()&&(i=e)});break;case"left":case r.LEFT:e.expanded?e.setExpanded(!1):e.parent&&e.parent.parent&&(i=e.parent);break;case"right":case r.RIGHT:e.expanded||!e.children&&!e.lazy?e.children&&e.children.length&&(i=e.children[0]):(e.setExpanded(),i=e);break;case"up":case r.UP:this.visitRows(function(e){return i=e,!1},{start:e,reverse:!0,includeSelf:!1});break;case"down":case r.DOWN:this.visitRows(function(e){return i=e,!1},{start:e,includeSelf:!1});break;default:this.tree.warn("Unknown relation '"+t+"'.")}return 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i=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:n,details:e.status+": "+n});s.rejectWith(this,[i])})),k.isFunction(s.then)&&k.isFunction(s.catch)&&(e=s,s=new k.Deferred,e.then(function(e){s.resolve(e)},function(e){s.reject(e)})),k.isFunction(s.promise)?(a.nodeSetStatus(o,"loading"),s.done(function(e){a.nodeSetStatus(o,"ok"),l._requestId=null}).fail(function(e){var t;e!==c?(e.node&&e.error&&e.message?t=e:"[object Object]"===(t=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:e?e.message||e.toString():""})).message&&(t.message=""),l.warn("Load children failed ("+t.message+")",t),!1!==a._triggerNodeEvent("loadError",t,null)&&a.nodeSetStatus(o,"error",t.message,t.details)):l.warn("Ignored response for obsolete load request #"+d+" (expected #"+l._requestId+")")})):o.options.postProcess&&(i=a._triggerNodeEvent("postProcess",o,o.originalEvent,{response:s,error:null,dataType:typeof 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n,i=e.node,r=k.extend({},e,{node:t}),o=i.children;if(1===o.length)return C(t===o[0],"invalid single child"),this.nodeRemoveChildren(e);this.activeNode&&(t===this.activeNode||this.activeNode.isDescendantOf(t))&&this.activeNode.setActive(!1),this.focusNode&&(t===this.focusNode||this.focusNode.isDescendantOf(t))&&(this.focusNode=null),this.nodeRemoveMarkup(r),this.nodeRemoveChildren(r),C(0<=(n=k.inArray(t,o)),"invalid child"),i.triggerModifyChild("remove",t),t.visit(function(e){e.parent=null},!0),this._callHook("treeRegisterNode",this,!1,t),o.splice(n,1)},nodeRemoveChildMarkup:function(e){var t=e.node;t.ul&&(t.isRootNode()?k(t.ul).empty():(k(t.ul).remove(),t.ul=null),t.visit(function(e){e.li=e.ul=null}))},nodeRemoveChildren:function(e){var t=e.tree,n=e.node;n.children&&(this.activeNode&&this.activeNode.isDescendantOf(n)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(n)&&(this.focusNode=null),this.nodeRemoveChildMarkup(e),n.triggerModifyChild("remove",null),n.visit(function(e){e.parent=null,t._callHook("treeRegisterNode",t,!1,e)}),n.lazy?n.children=[]:n.children=null,n.isRootNode()||(n.expanded=!1),this.nodeRenderStatus(e))},nodeRemoveMarkup:function(e){var t=e.node;t.li&&(k(t.li).remove(),t.li=null),this.nodeRemoveChildMarkup(e)},nodeRender:function(e,t,n,i,r){var o,s,a,l,d,c,u,h=e.node,f=e.tree,p=e.options,g=p.aria,v=!1,y=h.parent,b=!y,m=h.children,x=null;if(!1!==f._enableUpdate&&(b||y.ul)){if(C(b||y.ul,"parent UL must exist"),b||(h.li&&(t||h.li.parentNode!==h.parent.ul)&&(h.li.parentNode===h.parent.ul?x=h.li.nextSibling:this.debug("Unlinking "+h+" (must be child of 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t,n=e.node,i=e.tree,r=e.options,o=n.hasChildren(),s=n.isLastSibling(),a=r.aria,l=r._classNames,d=[],c=n[i.statusClassPropName];c&&!1!==i._enableUpdate&&(a&&(t=k(n.tr||n.li)),d.push(l.node),i.activeNode===n&&d.push(l.active),i.focusNode===n&&d.push(l.focused),n.expanded&&d.push(l.expanded),a&&(!1===o?t.removeAttr("aria-expanded"):t.attr("aria-expanded",Boolean(n.expanded))),n.folder&&d.push(l.folder),!1!==o&&d.push(l.hasChildren),s&&d.push(l.lastsib),n.lazy&&null==n.children&&d.push(l.lazy),n.partload&&d.push(l.partload),n.partsel&&d.push(l.partsel),g.evalOption("unselectable",n,n,r,!1)&&d.push(l.unselectable),n._isLoading&&d.push(l.loading),n._error&&d.push(l.error),n.statusNodeType&&d.push(l.statusNodePrefix+n.statusNodeType),n.selected?(d.push(l.selected),a&&t.attr("aria-selected",!0)):a&&t.attr("aria-selected",!1),n.extraClasses&&d.push(n.extraClasses),!1===o?d.push(l.combinedExpanderPrefix+"n"+(s?"l":"")):d.push(l.combinedExpanderPrefix+(n.expanded?"e":"c")+(n.lazy&&null==n.children?"d":"")+(s?"l":"")),d.push(l.combinedIconPrefix+(n.expanded?"e":"c")+(n.folder?"f":"")),c.className=d.join(" "),n.li&&k(n.li).toggleClass(l.lastsib,s))},nodeSetActive:function(e,t,n){n=n||{};var i,r=e.node,o=e.tree,s=e.options,a=!0===n.noEvents,l=!0===n.noFocus,d=!1!==n.scrollIntoView;return r===o.activeNode===(t=!1!==t)?w(r):t&&!a&&!1===this._triggerNodeEvent("beforeActivate",r,e.originalEvent)?S(r,["rejected"]):(t?(o.activeNode&&(C(o.activeNode!==r,"node was active (inconsistency)"),i=k.extend({},e,{node:o.activeNode}),o.nodeSetActive(i,!1),C(null===o.activeNode,"deactivate was out of sync?")),s.activeVisible&&r.makeVisible({scrollIntoView:d}),o.activeNode=r,o.nodeRenderStatus(e),l||o.nodeSetFocus(e),a||o._triggerNodeEvent("activate",r,e.originalEvent)):(C(o.activeNode===r,"node was not active (inconsistency)"),o.activeNode=null,this.nodeRenderStatus(e),a||e.tree._triggerNodeEvent("deactivate",r,e.originalEvent)),w(r))},nodeSetExpanded:function(i,r,e){e=e||{};var t,n,o,s,a,l,d=i.node,c=i.tree,u=i.options,h=!0===e.noAnimation,f=!0===e.noEvents;if(r=!1!==r,d.expanded&&r||!d.expanded&&!r)return w(d);if(r&&!d.lazy&&!d.hasChildren())return w(d);if(!r&&d.getLevel()<u.minExpandLevel)return S(d,["locked"]);if(!f&&!1===this._triggerNodeEvent("beforeExpand",d,i.originalEvent))return S(d,["rejected"]);if(h||d.isVisible()||(h=e.noAnimation=!0),n=new k.Deferred,r&&!d.expanded&&u.autoCollapse){a=d.getParentList(!1,!0),l=u.autoCollapse;try{for(u.autoCollapse=!1,o=0,s=a.length;o<s;o++)this._callHook("nodeCollapseSiblings",a[o],e)}finally{u.autoCollapse=l}}return n.done(function(){var e=d.getLastChild();r&&u.autoScroll&&!h&&e?e.scrollIntoView(!0,{topNode:d}).always(function(){f||i.tree._triggerNodeEvent(r?"expand":"collapse",i)}):f||i.tree._triggerNodeEvent(r?"expand":"collapse",i)}),t=function(e){var t=u._classNames,n=u.toggleEffect;if(d.expanded=r,c._callHook("treeStructureChanged",i,r?"expand":"collapse"),c._callHook("nodeRender",i,!1,!1,!0),d.ul)if("none"!==d.ul.style.display===!!d.expanded)d.warn("nodeSetExpanded: UL.style.display already set");else{if(n&&!h)return k(d.li).addClass(t.animating),void(k.isFunction(k(d.ul)[n.effect])?(c.debug("use jquery."+n.effect+" method"),k(d.ul)[n.effect]({duration:n.duration,always:function(){k(this).removeClass(t.animating),k(d.li).removeClass(t.animating),e()}})):(k(d.ul).stop(!0,!0),k(d.ul).parent().find(".ui-effects-placeholder").remove(),k(d.ul).toggle(n.effect,n.options,n.duration,function(){k(this).removeClass(t.animating),k(d.li).removeClass(t.animating),e()})));d.ul.style.display=d.expanded||!parent?"":"none"}e()},r&&d.lazy&&void 0===d.hasChildren()?d.load().done(function(){n.notifyWith&&n.notifyWith(d,["loaded"]),t(function(){n.resolveWith(d)})}).fail(function(e){t(function(){n.rejectWith(d,["load failed ("+e+")"])})}):t(function(){n.resolveWith(d)}),n.promise()},nodeSetFocus:function(e,t){var n,i=e.tree,r=e.node,o=i.options,s=!!e.originalEvent&&k(e.originalEvent.target).is(":input");if(t=!1!==t,i.focusNode){if(i.focusNode===r&&t)return;n=k.extend({},e,{node:i.focusNode}),i.focusNode=null,this._triggerNodeEvent("blur",n),this._callHook("nodeRenderStatus",n)}t&&(this.hasFocus()||(r.debug("nodeSetFocus: forcing container focus"),this._callHook("treeSetFocus",e,!0,{calledByNode:!0})),r.makeVisible({scrollIntoView:!1}),i.focusNode=r,o.titlesTabbable&&(s||k(r.span).find(".fancytree-title").focus()),o.aria&&k(i.$container).attr("aria-activedescendant",k(r.tr||r.li).uniqueId().attr("id")),this._triggerNodeEvent("focus",e),document.activeElement===i.$container.get(0)||1<=k(document.activeElement,i.$container).length||k(i.$container).focus(),o.autoScroll&&r.scrollIntoView(),this._callHook("nodeRenderStatus",e))},nodeSetSelected:function(e,t,n){n=n||{};var i=e.node,r=e.tree,o=e.options,s=!0===n.noEvents,a=i.parent;if(t=!1!==t,!g.evalOption("unselectable",i,i,o,!1)){if(i._lastSelectIntent=t,!!i.selected===t&&(3!==o.selectMode||!i.partsel||t))return t;if(!s&&!1===this._triggerNodeEvent("beforeSelect",i,e.originalEvent))return!!i.selected;t&&1===o.selectMode?(r.lastSelectedNode&&r.lastSelectedNode.setSelected(!1),i.selected=t):3!==o.selectMode||!a||a.radiogroup||i.radiogroup?a&&a.radiogroup?i.visitSiblings(function(e){e._changeSelectStatusAttrs(t&&e===i)},!0):i.selected=t:(i.selected=t,i.fixSelection3AfterClick(n)),this.nodeRenderStatus(e),r.lastSelectedNode=t?i:null,s||r._triggerNodeEvent("select",e)}},nodeSetStatus:function(i,e,t,n){var r=i.node,o=i.tree;function s(e,t){var n=r.children?r.children[0]:null;return n&&n.isStatusNode()?(k.extend(n,e),n.statusNodeType=t,o._callHook("nodeRenderTitle",n)):(r._setChildren([e]),o._callHook("treeStructureChanged",i,"setStatusNode"),r.children[0].statusNodeType=t,o.render()),r.children[0]}switch(e){case"ok":!function(){var e=r.children?r.children[0]:null;if(e&&e.isStatusNode()){try{r.ul&&(r.ul.removeChild(e.li),e.li=null)}catch(e){}1===r.children.length?r.children=[]:r.children.shift(),o._callHook("treeStructureChanged",i,"clearStatusNode")}}(),r._isLoading=!1,r._error=null,r.renderStatus();break;case"loading":r.parent||s({title:o.options.strings.loading+(t?" ("+t+")":""),checkbox:!1,tooltip:n},e),r._isLoading=!0,r._error=null,r.renderStatus();break;case"error":s({title:o.options.strings.loadError+(t?" ("+t+")":""),checkbox:!1,tooltip:n},e),r._isLoading=!1,r._error={message:t,details:n},r.renderStatus();break;case"nodata":s({title:t||o.options.strings.noData,checkbox:!1,tooltip:n},e),r._isLoading=!1,r._error=null,r.renderStatus();break;default:k.error("invalid node status "+e)}},nodeToggleExpanded:function(e){return this.nodeSetExpanded(e,!e.node.expanded)},nodeToggleSelected:function(e){var t=e.node,n=!t.selected;return t.partsel&&!t.selected&&!0===t._lastSelectIntent&&(n=!1,t.selected=!0),t._lastSelectIntent=n,this.nodeSetSelected(e,n)},treeClear:function(e){var t=e.tree;t.activeNode=null,t.focusNode=null,t.$div.find(">ul.fancytree-container").empty(),t.rootNode.children=null,t._callHook("treeStructureChanged",e,"clear")},treeCreate:function(e){},treeDestroy:function(e){this.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("fancytree-helper-hidden")},treeInit:function(e){var n=e.tree,i=n.options;n.$container.attr("tabindex",i.tabindex),k.each(u,function(e,t){void 0!==i[t]&&(n.info("Move option "+t+" to tree"),n[t]=i[t],delete i[t])}),i.checkboxAutoHide&&n.$container.addClass("fancytree-checkbox-auto-hide"),i.rtl?n.$container.attr("DIR","RTL").addClass("fancytree-rtl"):n.$container.removeAttr("DIR").removeClass("fancytree-rtl"),i.aria&&(n.$container.attr("role","tree"),1!==i.selectMode&&n.$container.attr("aria-multiselectable",!0)),this.treeLoad(e)},treeLoad:function(e,t){var n,i,r,o=e.tree,s=e.widget.element,a=k.extend({},e,{node:this.rootNode});if(o.rootNode.children&&this.treeClear(e),t=t||this.options.source)"string"==typeof t&&k.error("Not implemented");else switch(i=s.data("type")||"html"){case"html":(r=s.find(">ul").first()).addClass("ui-fancytree-source fancytree-helper-hidden"),t=k.ui.fancytree.parseHtml(r),this.data=k.extend(this.data,T(r));break;case"json":t=k.parseJSON(s.text()),s.contents().filter(function(){return 3===this.nodeType}).remove(),k.isPlainObject(t)&&(C(k.isArray(t.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),t=(n=t).children,delete n.children,k.each(u,function(e,t){void 0!==n[t]&&(o[t]=n[t],delete n[t])}),k.extend(o.data,n));break;default:k.error("Invalid data-type: "+i)}return this.nodeLoadChildren(a,t).done(function(){o._callHook("treeStructureChanged",e,"loadChildren"),o.render(),3===e.options.selectMode&&o.rootNode.fixSelection3FromEndNodes(),o.activeNode&&o.options.activeVisible&&o.activeNode.makeVisible(),o._triggerTreeEvent("init",null,{status:!0})}).fail(function(){o.render(),o._triggerTreeEvent("init",null,{status:!1})})},treeRegisterNode:function(e,t,n){e.tree._callHook("treeStructureChanged",e,t?"addNode":"removeNode")},treeSetFocus:function(e,t,n){var i;(t=!1!==t)!==this.hasFocus()&&(!(this._hasFocus=t)&&this.focusNode?this.focusNode.setFocus(!1):!t||n&&n.calledByNode||k(this.$container).focus(),this.$container.toggleClass("fancytree-treefocus",t),this._triggerTreeEvent(t?"focusTree":"blurTree"),t&&!this.activeNode&&(i=this._lastMousedownNode||this.getFirstChild())&&i.setFocus())},treeSetOption:function(e,t,n){var i=e.tree,r=!0,o=!1,s=!1;switch(t){case"aria":case"checkbox":case"icon":case"minExpandLevel":case"tabindex":s=o=!0;break;case"checkboxAutoHide":i.$container.toggleClass("fancytree-checkbox-auto-hide",!!n);break;case"escapeTitles":case"tooltip":s=!0;break;case"rtl":!1===n?i.$container.removeAttr("DIR").removeClass("fancytree-rtl"):i.$container.attr("DIR","RTL").addClass("fancytree-rtl"),s=!0;break;case"source":r=!1,i._callHook("treeLoad",i,n),s=!0}i.debug("set option "+t+"="+n+" <"+typeof n+">"),r&&(this.widget._super?this.widget._super.call(this.widget,t,n):k.Widget.prototype._setOption.call(this.widget,t,n)),o&&i._callHook("treeCreate",i),s&&i.render(!0,!1)},treeStructureChanged:function(e,t){}}),k.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!0,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,escapeTitles:!1,extensions:[],toggleEffect:{effect:"slideToggle",duration:200},generateIds:!1,icon:!0,idPrefix:"ft_",focusOnSelect:!1,keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,nodata:!0,quicksearch:!1,rtl:!1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading...",loadError:"Load error!",moreData:"More...",noData:"No data."},tabindex:"0",titlesTabbable:!1,tooltip:!1,treeId:null,_classNames:{node:"fancytree-node",folder:"fancytree-folder",animating:"fancytree-animating",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partload:"fancytree-partload",partsel:"fancytree-partsel",radio:"fancytree-radio",unselectable:"fancytree-unselectable",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error",statusNodePrefix:"fancytree-statusnode-"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new P(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul").first();var e,t,n,i=this.options,r=i.extensions;this.tree;for(n=0;n<r.length;n++)t=r[n],(e=k.ui.fancytree._extensions[t])||k.error("Could not apply extension '"+t+"' (it is not registered, did you forget to include it?)"),this.tree.options[t]=h({},e.options,this.tree.options[t]),C(void 0===this.tree.ext[t],"Extension name must not exist as Fancytree.ext attribute: '"+t+"'"),this.tree.ext[t]={},p(this.tree,0,e,t),e;void 0!==i.icons&&(!0===i.icon?(this.tree.warn("'icons' tree option is deprecated since v2.14.0: use 'icon' instead"),i.icon=i.icons):k.error("'icons' tree option is deprecated since v2.14.0: use 'icon' only instead")),void 0!==i.iconClass&&(i.icon?k.error("'iconClass' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'iconClass' tree option is deprecated since v2.14.0: use 'icon' instead"),i.icon=i.iconClass)),void 0!==i.tabbable&&(i.tabindex=i.tabbable?"0":"-1",this.tree.warn("'tabbable' tree option is deprecated since v2.17.0: use 'tabindex='"+i.tabindex+"' instead")),this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(e,t){return this.tree._callHook("treeSetOption",this.tree,e,t)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),k.Widget.prototype.destroy.call(this)},_unbind:function(){var e=this.tree._ns;this.element.off(e),this.tree.$container.off(e),k(document).off(e)},_bind:function(){var s=this,a=this.options,o=this.tree,e=o._ns;this._unbind(),o.$container.on("focusin"+e+" focusout"+e,function(e){var t=g.getNode(e),n="focusin"===e.type;if(!n&&t&&k(e.target).is("a"))t.debug("Ignored focusout on embedded <a> element.");else{if(n){if(o._getExpiringValue("focusin"))return void o.debug("Ignored double focusin.");o._setExpiringValue("focusin",!0,50),t||(t=o._getExpiringValue("mouseDownNode"))&&o.debug("Reconstruct mouse target for focusin from recent 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t.targetType=n.type,i.isPagingNode()?!0===r._triggerNodeEvent("clickPaging",t,e):!1!==r._triggerNodeEvent("click",t,e)&&r._callHook("nodeClick",t);case"dblclick":return t.targetType=n.type,!1!==r._triggerNodeEvent("dblclick",t,e)&&r._callHook("nodeDblclick",t)}}finally{r.phase=o}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(e){return this.tree.getNodeByKey(e)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),g=k.ui.fancytree,k.extend(k.ui.fancytree,{version:"2.31.0",buildType: "production",debugLevel: 3,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:P,_FancytreeNodeClass:A,jquerySupports:{positionMyOfs:function(e,t,n,i){var r,o,s,a=k.map(k.trim(e).split("."),function(e){return parseInt(e,10)}),l=k.map(Array.prototype.slice.call(arguments,1),function(e){return parseInt(e,10)});for(r=0;r<l.length;r++)if((o=a[r]||0)!==(s=l[r]||0))return s<o;return!0}(k.ui.version,1,9)},assert:function(e,t){return C(e,t)},createTree:function(e,t){return k(e).fancytree(t).fancytree("getTree")},debounce:function(t,n,i,r){var o;return 3===arguments.length&&"boolean"!=typeof i&&(r=i,i=!1),function(){var e=arguments;r=r||this,i&&!o&&n.apply(r,e),clearTimeout(o),o=setTimeout(function(){i||n.apply(r,e),o=null},t)}},debug:function(e){4<=k.ui.fancytree.debugLevel&&d("log",arguments)},error:function(e){1<=k.ui.fancytree.debugLevel&&d("error",arguments)},escapeHtml:function(e){return(""+e).replace(t,function(e){return i[e]})},fixPositionOptions:function(e){if((e.offset||0<=(""+e.my+e.at).indexOf("%"))&&k.error("expected new position syntax (but '%' is not supported)"),!k.ui.fancytree.jquerySupports.positionMyOfs){var t=/(\w+)([+-]?\d+)?\s+(\w+)([+-]?\d+)?/.exec(e.my),n=/(\w+)([+-]?\d+)?\s+(\w+)([+-]?\d+)?/.exec(e.at),i=(t[2]?+t[2]:0)+(n[2]?+n[2]:0),r=(t[4]?+t[4]:0)+(n[4]?+n[4]:0);e=k.extend({},e,{my:t[1]+" "+t[3],at:n[1]+" "+n[3]}),(i||r)&&(e.offset=i+" "+r)}return e},getEventTarget:function(e){var t,n=e&&e.target?e.target.className:"",i={node:this.getNode(e.target),type:void 0};return/\bfancytree-title\b/.test(n)?i.type="title":/\bfancytree-expander\b/.test(n)?i.type=!1===i.node.hasChildren()?"prefix":"expander":/\bfancytree-checkbox\b/.test(n)?i.type="checkbox":/\bfancytree(-custom)?-icon\b/.test(n)?i.type="icon":/\bfancytree-node\b/.test(n)?i.type="title":e&&e.target&&((t=k(e.target)).is("ul[role=group]")?((i.node&&i.node.tree||g).debug("Ignoring click on outer UL."),i.node=null):t.closest(".fancytree-title").length?i.type="title":t.closest(".fancytree-checkbox").length?i.type="checkbox":t.closest(".fancytree-expander").length&&(i.type="expander")),i},getEventTargetType:function(e){return this.getEventTarget(e).type},getNode:function(e){if(e instanceof A)return e;for(e instanceof k?e=e[0]:void 0!==e.originalEvent&&(e=e.target);e;){if(e.ftnode)return e.ftnode;e=e.parentNode}return null},getTree:function(e){var t,n=e;return e instanceof P?e:(void 0===e&&(e=0),"number"==typeof e?e=k(".fancytree-container").eq(e):"string"==typeof e?(e=k("#ft-id-"+n).eq(0)).length||(e=k(n).eq(0)):e instanceof k?e=e.eq(0):void 0!==e.originalEvent&&(e=k(e.target)),(t=(e=e.closest(":ui-fancytree")).data("ui-fancytree")||e.data("fancytree"))?t.tree:null)},evalOption:function(e,t,n,i,r){var o,s,a=t.tree,l=i[e],d=n[e];return k.isFunction(l)?(o={node:t,tree:a,widget:a.widget,options:a.widget.options,typeInfo:a.types[t.type]||{}},null==(s=l.call(a,{type:e},o))&&(s=d)):s=null==d?l:d,null==s&&(s=r),s},setSpanIcon:function(e,t,n){var i=k(e);"string"==typeof n?i.attr("class",t+" "+n):(n.text?i.text(""+n.text):n.html&&(e.innerHTML=n.html),i.attr("class",t+" "+(n.addClass||"")))},eventToString:function(e){var t=e.which,n=e.type,i=[];return e.altKey&&i.push("alt"),e.ctrlKey&&i.push("ctrl"),e.metaKey&&i.push("meta"),e.shiftKey&&i.push("shift"),"click"===n||"dblclick"===n?i.push(s[e.button]+n):"wheel"===n?i.push(n):r[t]||i.push(y[t]||String.fromCharCode(t).toLowerCase()),i.join("+")},info:function(e){3<=k.ui.fancytree.debugLevel&&d("info",arguments)},keyEventToString:function(e){return this.warn("keyEventToString() is deprecated: use eventToString()"),this.eventToString(e)},overrideMethod:function(e,t,n,i){var r,o=e[t]||k.noop;e[t]=function(){var e=i||this;try{return r=e._super,e._super=o,n.apply(e,arguments)}finally{e._super=r}}},parseHtml:function(s){var a,l,d,c,u,h,f,p,e=s.find(">li"),g=[];return e.each(function(){var e,t,n=k(this),i=n.find(">span",this).first(),r=i.length?null:n.find(">a").first(),o={tooltip:null,data:{}};for(i.length?o.title=i.html():r&&r.length?(o.title=r.html(),o.data.href=r.attr("href"),o.data.target=r.attr("target"),o.tooltip=r.attr("title")):(o.title=n.html(),0<=(u=o.title.search(/<ul/i))&&(o.title=o.title.substring(0,u))),o.title=k.trim(o.title),c=0,h=m.length;c<h;c++)o[m[c]]=void 0;for(a=this.className.split(" "),d=[],c=0,h=a.length;c<h;c++)l=a[c],x[l]?o[l]=!0:d.push(l);if(o.extraClasses=d.join(" "),(f=n.attr("title"))&&(o.tooltip=f),(f=n.attr("id"))&&(o.key=f),n.attr("hideCheckbox")&&(o.checkbox=!1),(e=T(n))&&!k.isEmptyObject(e)){for(t in _)e.hasOwnProperty(t)&&(e[_[t]]=e[t],delete e[t]);for(c=0,h=N.length;c<h;c++)f=N[c],null!=(p=e[f])&&(delete e[f],o[f]=p);k.extend(o.data,e)}(s=n.find(">ul").first()).length?o.children=k.ui.fancytree.parseHtml(s):o.children=o.lazy?void 0:null,g.push(o)}),g},registerExtension:function(e){C(null!=e.name,"extensions must have a `name` 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o=i[e],s=n[e],a=i.ext[r],l=function(){return o.apply(i,arguments)},d=function(e){return o.apply(i,e)},function(){var e=i._local,t=i._super,n=i._superApply;try{return i._local=a,i._super=l,i._superApply=d,s.apply(i,arguments)}finally{i._local=e,i._super=t,i._superApply=n}}}function p(e,t,n,i){for(var r in n)"function"==typeof n[r]?"function"==typeof e[r]?e[r]=f(r,e,0,n,i):"_"===r.charAt(0)?e.ext[i][r]=f(r,e,0,n,i):k.error("Could not override tree."+r+". 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Use 'lazyLoad' (with uppercase L) instead."),void 0!==this.options.loaderror&&k.error("The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."),void 0!==this.options.fx&&k.error("The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."),void 0!==this.options.removeNode&&k.error("The 'removeNode' event was replaced by 'modifyChild' since 2.20 (2016-09-10).")),this.ext={},this.types={},this.columns={},this.data=T(this.$div),this._id=""+(this.options.treeId||k.ui.fancytree._nextId++),this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this._tempCache={},this._lastMousedownNode=null,this._enableUpdate=!0,this.lastSelectedNode=null,this.systemFocusElement=null,this.lastQuicksearchTerm="",this.lastQuicksearchTime=0,this.viewport=null,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var t,n={tree:this};this.rootNode=new A(n,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,t=k("<ul>",{id:"ft-id-"+this._id,class:"ui-fancytree fancytree-container fancytree-plain"}).appendTo(this.$div),this.$container=t,this.rootNode.ul=t[0],null==this.options.debugLevel&&(this.options.debugLevel=g.debugLevel)}k.ui.fancytree.warn("Fancytree: ignored duplicate include")});
 
-/*! Extension 'jquery.fancytree.childcounter.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";return e.ui.fancytree._FancytreeClass.prototype.countSelected=function(e){this.options;return this.getSelectedNodes(e).length},e.ui.fancytree._FancytreeNodeClass.prototype.updateCounters=function(){var t=e("span.fancytree-childcounter",this.span),n=this.tree.options.childcounter,o=this.countChildren(n.deep);this.data.childCounter=o,!o&&n.hideZeros||this.isExpanded()&&n.hideExpanded?t.remove():(t.length||(t=e("<span class='fancytree-childcounter'/>").appendTo(e("span.fancytree-icon,span.fancytree-custom-icon",this.span))),t.text(o)),!n.deep||this.isTopLevel()||this.isRoot()||this.parent.updateCounters()},e.ui.fancytree.prototype.widgetMethod1=function(e){this.tree;return e},e.ui.fancytree.registerExtension({name:"childcounter",version:"2.30.2",options:{deep:!0,hideZeros:!0,hideExpanded:!1},foo:42,_appendCounter:function(e){},treeInit:function(e){e.options,e.options.childcounter;this._superApply(arguments),this.$container.addClass("fancytree-ext-childcounter")},treeDestroy:function(e){this._superApply(arguments)},nodeRenderTitle:function(t,n){var o=t.node,i=t.options.childcounter,r=null==o.data.childCounter?o.countChildren(i.deep):+o.data.childCounter;this._super(t,n),!r&&i.hideZeros||o.isExpanded()&&i.hideExpanded||e("span.fancytree-icon,span.fancytree-custom-icon",o.span).append(e("<span class='fancytree-childcounter'/>").text(r))},nodeSetExpanded:function(e,t,n){var o=e.tree;e.node;return this._superApply(arguments).always(function(){o.nodeRenderTitle(e)})}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.childcounter.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(i){"use strict";return i.ui.fancytree._FancytreeClass.prototype.countSelected=function(e){this.options;return this.getSelectedNodes(e).length},i.ui.fancytree._FancytreeNodeClass.prototype.updateCounters=function(){var e=this,n=i("span.fancytree-childcounter",e.span),t=e.tree.options.childcounter,o=e.countChildren(t.deep);!(e.data.childCounter=o)&&t.hideZeros||e.isExpanded()&&t.hideExpanded?n.remove():(n.length||(n=i("<span class='fancytree-childcounter'/>").appendTo(i("span.fancytree-icon,span.fancytree-custom-icon",e.span))),n.text(o)),!t.deep||e.isTopLevel()||e.isRoot()||e.parent.updateCounters()},i.ui.fancytree.prototype.widgetMethod1=function(e){this.tree;return e},i.ui.fancytree.registerExtension({name:"childcounter",version:"2.31.0",options:{deep:!0,hideZeros:!0,hideExpanded:!1},foo:42,_appendCounter:function(e){},treeInit:function(e){e.options,e.options.childcounter;this._superApply(arguments),this.$container.addClass("fancytree-ext-childcounter")},treeDestroy:function(e){this._superApply(arguments)},nodeRenderTitle:function(e,n){var t=e.node,o=e.options.childcounter,r=null==t.data.childCounter?t.countChildren(o.deep):+t.data.childCounter;this._super(e,n),!r&&o.hideZeros||t.isExpanded()&&o.hideExpanded||i("span.fancytree-icon,span.fancytree-custom-icon",t.span).append(i("<span class='fancytree-childcounter'/>").text(r))},nodeSetExpanded:function(e,n,t){var o=e.tree;e.node;return this._superApply(arguments).always(function(){o.nodeRenderTitle(e)})}}),i.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.clones.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n){t||(n=n?": "+n:"",e.error("Assertion failed"+n))}return e.ui.fancytree._FancytreeNodeClass.prototype.getCloneList=function(t){var n,r=this.tree,s=r.refMap[this.refKey]||null,i=r.keyMap;return s&&(n=this.key,t?s=e.map(s,function(e){return i[e]}):(s=e.map(s,function(e){return e===n?null:i[e]})).length<1&&(s=null)),s},e.ui.fancytree._FancytreeNodeClass.prototype.isClone=function(){var e=this.refKey||null,t=e&&this.tree.refMap[e]||null;return!!(t&&t.length>1)},e.ui.fancytree._FancytreeNodeClass.prototype.reRegister=function(t,n){t=null==t?null:""+t,n=null==n?null:""+n;var r=this.tree,s=this.key,i=this.refKey,o=r.keyMap,l=r.refMap,u=l[i]||null,a=!1;return null!=t&&t!==this.key&&(o[t]&&e.error("[ext-clones] reRegister("+t+"): already exists: "+this),delete o[s],o[t]=this,u&&(l[i]=e.map(u,function(e){return e===s?t:e})),this.key=t,a=!0),null!=n&&n!==this.refKey&&(u&&(1===u.length?delete l[i]:l[i]=e.map(u,function(e){return e===s?null:e})),l[n]?l[n].append(t):l[n]=[this.key],this.refKey=n,a=!0),a},e.ui.fancytree._FancytreeNodeClass.prototype.setRefKey=function(e){return this.reRegister(null,e)},e.ui.fancytree._FancytreeClass.prototype.getNodesByRef=function(t,n){var r=this.keyMap,s=this.refMap[t]||null;return s&&(s=n?e.map(s,function(e){var t=r[e];return t.isDescendantOf(n)?t:null}):e.map(s,function(e){return r[e]})).length<1&&(s=null),s},e.ui.fancytree._FancytreeClass.prototype.changeRefKey=function(e,t){var n,r=this.keyMap,s=this.refMap[e]||null;if(s){for(n=0;n<s.length;n++)r[s[n]].refKey=t;delete this.refMap[e],this.refMap[t]=s}},e.ui.fancytree.registerExtension({name:"clones",version:"2.30.2",options:{highlightActiveClones:!0,highlightClones:!1},treeCreate:function(e){this._superApply(arguments),e.tree.refMap={},e.tree.keyMap={}},treeInit:function(n){this.$container.addClass("fancytree-ext-clones"),t(null==n.options.defaultKey),n.options.defaultKey=function(t){return function(t){var n=e.map(t.getParentList(!1,!0),function(e){return e.refKey||e.key});return n=n.join("/"),"id_"+function(e,t,n){for(var r,s,i=3&e.length,o=e.length-i,l=n,u=3432918353,a=0;a<o;)s=255&e.charCodeAt(a)|(255&e.charCodeAt(++a))<<8|(255&e.charCodeAt(++a))<<16|(255&e.charCodeAt(++a))<<24,++a,l=27492+(65535&(r=5*(65535&(l=(l^=s=461845907*(65535&(s=(s=(65535&s)*u+(((s>>>16)*u&65535)<<16)&4294967295)<<15|s>>>17))+((461845907*(s>>>16)&65535)<<16)&4294967295)<<13|l>>>19))+((5*(l>>>16)&65535)<<16)&4294967295))+((58964+(r>>>16)&65535)<<16);switch(s=0,i){case 3:s^=(255&e.charCodeAt(a+2))<<16;case 2:s^=(255&e.charCodeAt(a+1))<<8;case 1:l^=s=461845907*(65535&(s=(s=(65535&(s^=255&e.charCodeAt(a)))*u+(((s>>>16)*u&65535)<<16)&4294967295)<<15|s>>>17))+((461845907*(s>>>16)&65535)<<16)&4294967295}return l^=e.length,l^=l>>>16,l=2246822507*(65535&l)+((2246822507*(l>>>16)&65535)<<16)&4294967295,l^=l>>>13,l=3266489909*(65535&l)+((3266489909*(l>>>16)&65535)<<16)&4294967295,l^=l>>>16,t?("0000000"+(l>>>0).toString(16)).substr(-8):l>>>0}(n,!0)}(t)},this._superApply(arguments)},treeClear:function(e){return e.tree.refMap={},e.tree.keyMap={},this._superApply(arguments)},treeRegisterNode:function(n,r,s){var i,o,l=n.tree,u=l.keyMap,a=l.refMap,c=s.key,f=s&&null!=s.refKey?""+s.refKey:null;return s.isStatusNode()?this._super(n,r,s):(r?(null!=u[s.key]&&e.error("clones.treeRegisterNode: node.key already exists: "+s),u[c]=s,f&&((i=a[f])?(i.push(c),2===i.length&&n.options.clones.highlightClones&&u[i[0]].renderStatus()):a[f]=[c])):(null==u[c]&&e.error("clones.treeRegisterNode: node.key not registered: "+s.key),delete u[c],f&&(i=a[f])&&((o=i.length)<=1?(t(1===o),t(i[0]===c),delete a[f]):(!function(e,t){var n;for(n=e.length-1;n>=0;n--)if(e[n]===t)return e.splice(n,1),!0}(i,c),2===o&&n.options.clones.highlightClones&&u[i[0]].renderStatus()))),this._super(n,r,s))},nodeRenderStatus:function(t){var n,r,s=t.node;return r=this._super(t),t.options.clones.highlightClones&&(n=e(s[t.tree.statusClassPropName])).length&&s.isClone()&&n.addClass("fancytree-clone"),r},nodeSetActive:function(t,n,r){var s,i=t.tree.statusClassPropName,o=t.node;return s=this._superApply(arguments),t.options.clones.highlightActiveClones&&o.isClone()&&e.each(o.getCloneList(!0),function(t,r){e(r[i]).toggleClass("fancytree-active-clone",!1!==n)}),s}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.clones.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(h){"use strict";function y(e,t){e||(t=t?": "+t:"",h.error("Assertion failed"+t))}function i(e,t,r){for(var n,i,s=3&e.length,o=e.length-s,l=r,u=3432918353,a=461845907,c=0;c<o;)i=255&e.charCodeAt(c)|(255&e.charCodeAt(++c))<<8|(255&e.charCodeAt(++c))<<16|(255&e.charCodeAt(++c))<<24,++c,l=27492+(65535&(n=5*(65535&(l=(l^=i=(65535&(i=(i=(65535&i)*u+(((i>>>16)*u&65535)<<16)&4294967295)<<15|i>>>17))*a+(((i>>>16)*a&65535)<<16)&4294967295)<<13|l>>>19))+((5*(l>>>16)&65535)<<16)&4294967295))+((58964+(n>>>16)&65535)<<16);switch(i=0,s){case 3:i^=(255&e.charCodeAt(c+2))<<16;case 2:i^=(255&e.charCodeAt(c+1))<<8;case 1:l^=i=(65535&(i=(i=(65535&(i^=255&e.charCodeAt(c)))*u+(((i>>>16)*u&65535)<<16)&4294967295)<<15|i>>>17))*a+(((i>>>16)*a&65535)<<16)&4294967295}return l^=e.length,l=2246822507*(65535&(l^=l>>>16))+((2246822507*(l>>>16)&65535)<<16)&4294967295,l=3266489909*(65535&(l^=l>>>13))+((3266489909*(l>>>16)&65535)<<16)&4294967295,l^=l>>>16,t?("0000000"+(l>>>0).toString(16)).substr(-8):l>>>0}return h.ui.fancytree._FancytreeNodeClass.prototype.getCloneList=function(e){var t,r=this.tree,n=r.refMap[this.refKey]||null,i=r.keyMap;return n&&(t=this.key,e?n=h.map(n,function(e){return i[e]}):(n=h.map(n,function(e){return e===t?null:i[e]})).length<1&&(n=null)),n},h.ui.fancytree._FancytreeNodeClass.prototype.isClone=function(){var e=this.refKey||null,t=e&&this.tree.refMap[e]||null;return!!(t&&1<t.length)},h.ui.fancytree._FancytreeNodeClass.prototype.reRegister=function(t,e){t=null==t?null:""+t,e=null==e?null:""+e;var r=this.tree,n=this.key,i=this.refKey,s=r.keyMap,o=r.refMap,l=o[i]||null,u=!1;return null!=t&&t!==this.key&&(s[t]&&h.error("[ext-clones] reRegister("+t+"): already exists: "+this),delete s[n],s[t]=this,l&&(o[i]=h.map(l,function(e){return e===n?t:e})),this.key=t,u=!0),null!=e&&e!==this.refKey&&(l&&(1===l.length?delete o[i]:o[i]=h.map(l,function(e){return e===n?null:e})),o[e]?o[e].append(t):o[e]=[this.key],this.refKey=e,u=!0),u},h.ui.fancytree._FancytreeNodeClass.prototype.setRefKey=function(e){return this.reRegister(null,e)},h.ui.fancytree._FancytreeClass.prototype.getNodesByRef=function(e,r){var n=this.keyMap,t=this.refMap[e]||null;return t&&(t=r?h.map(t,function(e){var t=n[e];return t.isDescendantOf(r)?t:null}):h.map(t,function(e){return n[e]})).length<1&&(t=null),t},h.ui.fancytree._FancytreeClass.prototype.changeRefKey=function(e,t){var r,n=this.keyMap,i=this.refMap[e]||null;if(i){for(r=0;r<i.length;r++)n[i[r]].refKey=t;delete this.refMap[e],this.refMap[t]=i}},h.ui.fancytree.registerExtension({name:"clones",version:"2.31.0",options:{highlightActiveClones:!0,highlightClones:!1},treeCreate:function(e){this._superApply(arguments),e.tree.refMap={},e.tree.keyMap={}},treeInit:function(e){this.$container.addClass("fancytree-ext-clones"),y(null==e.options.defaultKey),e.options.defaultKey=function(e){return t=e,n=h.map(t.getParentList(!1,!0),function(e){return e.refKey||e.key}),"id_"+(r=i(n=n.join("/"),!0))+i(r+n,!0);var t,r,n},this._superApply(arguments)},treeClear:function(e){return e.tree.refMap={},e.tree.keyMap={},this._superApply(arguments)},treeRegisterNode:function(e,t,r){var n,i,s=e.tree,o=s.keyMap,l=s.refMap,u=r.key,a=r&&null!=r.refKey?""+r.refKey:null;if(r.isStatusNode())return this._super(e,t,r);if(t){if(null!=o[r.key]){var c=o[r.key],f="clones.treeRegisterNode: duplicate key '"+r.key+"': /"+r.getPath(!0)+" => "+c.getPath(!0);s.error(f),h.error(f)}o[u]=r,a&&((n=l[a])?(n.push(u),2===n.length&&e.options.clones.highlightClones&&o[n[0]].renderStatus()):l[a]=[u])}else null==o[u]&&h.error("clones.treeRegisterNode: node.key not registered: "+r.key),delete o[u],a&&(n=l[a])&&((i=n.length)<=1?(y(1===i),y(n[0]===u),delete l[a]):(!function(e,t){var r;for(r=e.length-1;0<=r;r--)if(e[r]===t)return e.splice(r,1)}(n,u),2===i&&e.options.clones.highlightClones&&o[n[0]].renderStatus()));return this._super(e,t,r)},nodeRenderStatus:function(e){var t,r,n=e.node;return r=this._super(e),e.options.clones.highlightClones&&(t=h(n[e.tree.statusClassPropName])).length&&n.isClone()&&t.addClass("fancytree-clone"),r},nodeSetActive:function(e,r,t){var n,i=e.tree.statusClassPropName,s=e.node;return n=this._superApply(arguments),e.options.clones.highlightActiveClones&&s.isClone()&&h.each(s.getCloneList(!0),function(e,t){h(t[i]).toggleClass("fancytree-active-clone",!1!==r)}),n}}),h.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.dnd.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","jquery-ui/ui/widgets/draggable","jquery-ui/ui/widgets/droppable","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function r(e){return 0===e?"":e>0?"+"+e:""+e}function t(r){var t=r.options.dnd||null,n=r.options.glyph||null;t&&(a||(e.ui.plugin.add("draggable","connectToFancytree",{start:function(r,t){var a=e(this).data("ui-draggable")||e(this).data("draggable"),n=t.helper.data("ftSourceNode")||null;if(n)return a.offset.click.top=-2,a.offset.click.left=16,n.tree.ext.dnd._onDragEvent("start",n,null,r,t,a)},drag:function(r,t){var a,n=e(this).data("ui-draggable")||e(this).data("draggable"),o=t.helper.data("ftSourceNode")||null,d=t.helper.data("ftTargetNode")||null,l=e.ui.fancytree.getNode(r.target),s=o&&o.tree.options.dnd;r.target&&!l&&e(r.target).closest("div.fancytree-drag-helper,#fancytree-drop-marker").length>0?(o||d||e.ui.fancytree).debug("Drag event over helper: ignored."):(t.helper.data("ftTargetNode",l),s&&s.updateHelper&&(a=o.tree._makeHookContext(o,r,{otherNode:l,ui:t,draggable:n,dropMarker:e("#fancytree-drop-marker")}),s.updateHelper.call(o.tree,o,a)),d&&d!==l&&d.tree.ext.dnd._onDragEvent("leave",d,o,r,t,n),l&&l.tree.options.dnd.dragDrop&&(l===d?l.tree.ext.dnd._onDragEvent("over",l,o,r,t,n):(l.tree.ext.dnd._onDragEvent("enter",l,o,r,t,n),l.tree.ext.dnd._onDragEvent("over",l,o,r,t,n))))},stop:function(r,t){var a=e(this).data("ui-draggable")||e(this).data("draggable"),n=t.helper.data("ftSourceNode")||null,o=t.helper.data("ftTargetNode")||null,d="mouseup"===r.type&&1===r.which;d||(n||o||e.ui.fancytree).debug("Drag was cancelled"),o&&(d&&o.tree.ext.dnd._onDragEvent("drop",o,n,r,t,a),o.tree.ext.dnd._onDragEvent("leave",o,n,r,t,a)),n&&n.tree.ext.dnd._onDragEvent("stop",n,null,r,t,a)}}),a=!0)),t&&t.dragStart&&r.widget.element.draggable(e.extend({addClasses:!1,appendTo:r.$container,containment:!1,delay:0,distance:4,revert:!1,scroll:!0,scrollSpeed:7,scrollSensitivity:10,connectToFancytree:!0,helper:function(r){var t,a,o,d=e.ui.fancytree.getNode(r.target);return d?(o=d.tree.options.dnd,a=e(d.span),(t=e("<div class='fancytree-drag-helper'><span class='fancytree-drag-helper-img' /></div>").css({zIndex:3,position:"relative"}).append(a.find("span.fancytree-title").clone())).data("ftSourceNode",d),n&&t.find(".fancytree-drag-helper-img").addClass(n.map._addClass+" "+n.map.dragHelper),o.initHelper&&o.initHelper.call(d.tree,d,{node:d,tree:d.tree,originalEvent:r,ui:{helper:t}}),t):"<div>ERROR?: helper requested but sourceNode not found</div>"},start:function(e,r){return!!r.helper.data("ftSourceNode")}},r.options.dnd.draggable)),t&&t.dragDrop&&r.widget.element.droppable(e.extend({addClasses:!1,tolerance:"intersect",greedy:!1},r.options.dnd.droppable))}var a=!1,n="fancytree-drop-accept",o="fancytree-drop-after",d="fancytree-drop-before",l="fancytree-drop-reject";return e.ui.fancytree.registerExtension({name:"dnd",version:"2.30.2",options:{autoExpandMS:1e3,draggable:null,droppable:null,focusOnClick:!1,preventVoidMoves:!0,preventRecursiveMoves:!0,smartRevert:!0,dropMarkerOffsetX:-24,dropMarkerInsertOffsetX:-16,dragStart:null,dragStop:null,initHelper:null,updateHelper:null,dragEnter:null,dragOver:null,dragExpand:null,dragDrop:null,dragLeave:null},treeInit:function(r){var a=r.tree;this._superApply(arguments),a.options.dnd.dragStart&&a.$container.on("mousedown",function(t){if(r.options.dnd.focusOnClick){var a=e.ui.fancytree.getNode(t);a&&a.debug("Re-enable focus that was prevented by jQuery UI draggable."),setTimeout(function(){e(t.target).closest(":tabbable").focus()},10)}}),t(a)},_setDndStatus:function(t,a,s,i,p){var g,u,c="center",f=this._local,v=this.options.dnd,h=this.options.glyph,y=t?e(t.span):null,b=e(a.span),m=b.find("span.fancytree-title");if(f.$dropMarker||(f.$dropMarker=e("<div id='fancytree-drop-marker'></div>").hide().css({"z-index":1e3}).prependTo(e(this.$div).parent()),h&&f.$dropMarker.addClass(h.map._addClass+" "+h.map.dropMarker)),"after"===i||"before"===i||"over"===i){switch(g=v.dropMarkerOffsetX||0,i){case"before":c="top",g+=v.dropMarkerInsertOffsetX||0;break;case"after":c="bottom",g+=v.dropMarkerInsertOffsetX||0}u={my:"left"+r(g)+" center",at:"left "+c,of:m},this.options.rtl&&(u.my="right"+r(-g)+" center",u.at="right "+c),f.$dropMarker.toggleClass(o,"after"===i).toggleClass("fancytree-drop-over","over"===i).toggleClass(d,"before"===i).toggleClass("fancytree-rtl",!!this.options.rtl).show().position(e.ui.fancytree.fixPositionOptions(u))}else f.$dropMarker.hide();y&&y.toggleClass(n,!0===p).toggleClass(l,!1===p),b.toggleClass("fancytree-drop-target","after"===i||"before"===i||"over"===i).toggleClass(o,"after"===i).toggleClass(d,"before"===i).toggleClass(n,!0===p).toggleClass(l,!1===p),s.toggleClass(n,!0===p).toggleClass(l,!1===p)},_onDragEvent:function(r,t,a,n,o,d){var l,s,i,p,g,u,c,f,v,h=this.options.dnd,y=this._makeHookContext(t,n,{otherNode:a,ui:o,draggable:d}),b=null,m=this,x=e(t.span);switch(h.smartRevert&&(d.options.revert="invalid"),r){case"start":t.isStatusNode()?b=!1:h.dragStart&&(b=h.dragStart(t,y)),!1===b?(this.debug("tree.dragStart() cancelled"),o.helper.trigger("mouseup").hide()):(h.smartRevert&&(p=t[y.tree.nodeContainerAttrName].getBoundingClientRect(),i=e(d.options.appendTo)[0].getBoundingClientRect(),d.originalPosition.left=Math.max(0,p.left-i.left),d.originalPosition.top=Math.max(0,p.top-i.top)),x.addClass("fancytree-drag-source"),e(document).on("keydown.fancytree-dnd,mousedown.fancytree-dnd",function(r){"keydown"===r.type&&r.which===e.ui.keyCode.ESCAPE?m.ext.dnd._cancelDrag():"mousedown"===r.type&&m.ext.dnd._cancelDrag()}));break;case"enter":b=!!(v=(!h.preventRecursiveMoves||!t.isDescendantOf(a))&&(h.dragEnter?h.dragEnter(t,y):null))&&(e.isArray(v)?{over:e.inArray("over",v)>=0,before:e.inArray("before",v)>=0,after:e.inArray("after",v)>=0}:{over:!0===v||"over"===v,before:!0===v||"before"===v,after:!0===v||"after"===v}),o.helper.data("enterResponse",b);break;case"over":f=null,!1===(c=o.helper.data("enterResponse"))||("string"==typeof c?f=c:(s=x.offset(),u={x:(g={x:n.pageX-s.left,y:n.pageY-s.top}).x/x.width(),y:g.y/x.height()},c.after&&u.y>.75?f="after":!c.over&&c.after&&u.y>.5?f="after":c.before&&u.y<=.25?f="before":!c.over&&c.before&&u.y<=.5?f="before":c.over&&(f="over"),h.preventVoidMoves&&(t===a?(this.debug("    drop over source node prevented"),f=null):"before"===f&&a&&t===a.getNextSibling()?(this.debug("    drop after source node prevented"),f=null):"after"===f&&a&&t===a.getPrevSibling()?(this.debug("    drop before source node prevented"),f=null):"over"===f&&a&&a.parent===t&&a.isLastSibling()&&(this.debug("    drop last child over own parent prevented"),f=null)),o.helper.data("hitMode",f))),"before"===f||"after"===f||!h.autoExpandMS||!1===t.hasChildren()||t.expanded||h.dragExpand&&!1===h.dragExpand(t,y)||t.scheduleAction("expand",h.autoExpandMS),f&&h.dragOver&&(y.hitMode=f,b=h.dragOver(t,y)),l=!1!==b&&null!==f,h.smartRevert&&(d.options.revert=!l),this._local._setDndStatus(a,t,o.helper,f,l);break;case"drop":(f=o.helper.data("hitMode"))&&h.dragDrop&&(y.hitMode=f,h.dragDrop(t,y));break;case"leave":t.scheduleAction("cancel"),o.helper.data("enterResponse",null),o.helper.data("hitMode",null),this._local._setDndStatus(a,t,o.helper,"out",void 0),h.dragLeave&&h.dragLeave(t,y);break;case"stop":x.removeClass("fancytree-drag-source"),e(document).off(".fancytree-dnd"),h.dragStop&&h.dragStop(t,y);break;default:e.error("Unsupported drag event: "+r)}return b},_cancelDrag:function(){var r=e.ui.ddmanager.current;r&&r.cancel()}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.dnd.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","jquery-ui/ui/widgets/draggable","jquery-ui/ui/widgets/droppable","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(k){"use strict";var t=!1,f="fancytree-drop-accept",v="fancytree-drop-after",h="fancytree-drop-before",y="fancytree-drop-reject";function b(e){return 0===e?"":0<e?"+"+e:""+e}function r(e){var r=e.options.dnd||null,o=e.options.glyph||null;r&&(t||(k.ui.plugin.add("draggable","connectToFancytree",{start:function(e,r){var t=k(this).data("ui-draggable")||k(this).data("draggable"),a=r.helper.data("ftSourceNode")||null;if(a)return t.offset.click.top=-2,t.offset.click.left=16,a.tree.ext.dnd._onDragEvent("start",a,null,e,r,t)},drag:function(e,r){var t,a=k(this).data("ui-draggable")||k(this).data("draggable"),n=r.helper.data("ftSourceNode")||null,o=r.helper.data("ftTargetNode")||null,d=k.ui.fancytree.getNode(e.target),l=n&&n.tree.options.dnd;e.target&&!d&&0<k(e.target).closest("div.fancytree-drag-helper,#fancytree-drop-marker").length?(n||o||k.ui.fancytree).debug("Drag event over helper: ignored."):(r.helper.data("ftTargetNode",d),l&&l.updateHelper&&(t=n.tree._makeHookContext(n,e,{otherNode:d,ui:r,draggable:a,dropMarker:k("#fancytree-drop-marker")}),l.updateHelper.call(n.tree,n,t)),o&&o!==d&&o.tree.ext.dnd._onDragEvent("leave",o,n,e,r,a),d&&d.tree.options.dnd.dragDrop&&(d===o||d.tree.ext.dnd._onDragEvent("enter",d,n,e,r,a),d.tree.ext.dnd._onDragEvent("over",d,n,e,r,a)))},stop:function(e,r){var t=k(this).data("ui-draggable")||k(this).data("draggable"),a=r.helper.data("ftSourceNode")||null,n=r.helper.data("ftTargetNode")||null,o="mouseup"===e.type&&1===e.which;o||(a||n||k.ui.fancytree).debug("Drag was cancelled"),n&&(o&&n.tree.ext.dnd._onDragEvent("drop",n,a,e,r,t),n.tree.ext.dnd._onDragEvent("leave",n,a,e,r,t)),a&&a.tree.ext.dnd._onDragEvent("stop",a,null,e,r,t)}}),t=!0)),r&&r.dragStart&&e.widget.element.draggable(k.extend({addClasses:!1,appendTo:e.$container,containment:!1,delay:0,distance:4,revert:!1,scroll:!0,scrollSpeed:7,scrollSensitivity:10,connectToFancytree:!0,helper:function(e){var r,t,a,n=k.ui.fancytree.getNode(e.target);return n?(a=n.tree.options.dnd,t=k(n.span),(r=k("<div class='fancytree-drag-helper'><span class='fancytree-drag-helper-img' /></div>").css({zIndex:3,position:"relative"}).append(t.find("span.fancytree-title").clone())).data("ftSourceNode",n),o&&r.find(".fancytree-drag-helper-img").addClass(o.map._addClass+" "+o.map.dragHelper),a.initHelper&&a.initHelper.call(n.tree,n,{node:n,tree:n.tree,originalEvent:e,ui:{helper:r}}),r):"<div>ERROR?: helper requested but sourceNode not found</div>"},start:function(e,r){return!!r.helper.data("ftSourceNode")}},e.options.dnd.draggable)),r&&r.dragDrop&&e.widget.element.droppable(k.extend({addClasses:!1,tolerance:"intersect",greedy:!1},e.options.dnd.droppable))}return k.ui.fancytree.registerExtension({name:"dnd",version:"2.31.0",options:{autoExpandMS:1e3,draggable:null,droppable:null,focusOnClick:!1,preventVoidMoves:!0,preventRecursiveMoves:!0,smartRevert:!0,dropMarkerOffsetX:-24,dropMarkerInsertOffsetX:-16,dragStart:null,dragStop:null,initHelper:null,updateHelper:null,dragEnter:null,dragOver:null,dragExpand:null,dragDrop:null,dragLeave:null},treeInit:function(t){var e=t.tree;this._superApply(arguments),e.options.dnd.dragStart&&e.$container.on("mousedown",function(e){if(t.options.dnd.focusOnClick){var r=k.ui.fancytree.getNode(e);r&&r.debug("Re-enable focus that was prevented by jQuery UI draggable."),setTimeout(function(){k(e.target).closest(":tabbable").focus()},10)}}),r(e)},_setDndStatus:function(e,r,t,a,n){var o,d,l="center",s=this._local,i=this.options.dnd,p=this.options.glyph,g=e?k(e.span):null,u=k(r.span),c=u.find("span.fancytree-title");if(s.$dropMarker||(s.$dropMarker=k("<div id='fancytree-drop-marker'></div>").hide().css({"z-index":1e3}).prependTo(k(this.$div).parent()),p&&s.$dropMarker.addClass(p.map._addClass+" "+p.map.dropMarker)),"after"===a||"before"===a||"over"===a){switch(o=i.dropMarkerOffsetX||0,a){case"before":l="top",o+=i.dropMarkerInsertOffsetX||0;break;case"after":l="bottom",o+=i.dropMarkerInsertOffsetX||0}d={my:"left"+b(o)+" center",at:"left "+l,of:c},this.options.rtl&&(d.my="right"+b(-o)+" center",d.at="right "+l),s.$dropMarker.toggleClass(v,"after"===a).toggleClass("fancytree-drop-over","over"===a).toggleClass(h,"before"===a).toggleClass("fancytree-rtl",!!this.options.rtl).show().position(k.ui.fancytree.fixPositionOptions(d))}else s.$dropMarker.hide();g&&g.toggleClass(f,!0===n).toggleClass(y,!1===n),u.toggleClass("fancytree-drop-target","after"===a||"before"===a||"over"===a).toggleClass(v,"after"===a).toggleClass(h,"before"===a).toggleClass(f,!0===n).toggleClass(y,!1===n),t.toggleClass(f,!0===n).toggleClass(y,!1===n)},_onDragEvent:function(e,r,t,a,n,o){var d,l,s,i,p,g,u,c,f,v=this.options.dnd,h=this._makeHookContext(r,a,{otherNode:t,ui:n,draggable:o}),y=null,b=this,m=k(r.span);switch(v.smartRevert&&(o.options.revert="invalid"),e){case"start":r.isStatusNode()?y=!1:v.dragStart&&(y=v.dragStart(r,h)),!1===y?(this.debug("tree.dragStart() cancelled"),n.helper.trigger("mouseup").hide()):(v.smartRevert&&(i=r[h.tree.nodeContainerAttrName].getBoundingClientRect(),s=k(o.options.appendTo)[0].getBoundingClientRect(),o.originalPosition.left=Math.max(0,i.left-s.left),o.originalPosition.top=Math.max(0,i.top-s.top)),m.addClass("fancytree-drag-source"),k(document).on("keydown.fancytree-dnd,mousedown.fancytree-dnd",function(e){"keydown"===e.type&&e.which===k.ui.keyCode.ESCAPE?b.ext.dnd._cancelDrag():"mousedown"===e.type&&b.ext.dnd._cancelDrag()}));break;case"enter":y=!!(f=(!v.preventRecursiveMoves||!r.isDescendantOf(t))&&(v.dragEnter?v.dragEnter(r,h):null))&&(k.isArray(f)?{over:0<=k.inArray("over",f),before:0<=k.inArray("before",f),after:0<=k.inArray("after",f)}:{over:!0===f||"over"===f,before:!0===f||"before"===f,after:!0===f||"after"===f}),n.helper.data("enterResponse",y);break;case"over":c=null,!1===(u=n.helper.data("enterResponse"))||("string"==typeof u?c=u:(l=m.offset(),g={x:(p={x:a.pageX-l.left,y:a.pageY-l.top}).x/m.width(),y:p.y/m.height()},u.after&&.75<g.y?c="after":!u.over&&u.after&&.5<g.y?c="after":u.before&&g.y<=.25?c="before":!u.over&&u.before&&g.y<=.5?c="before":u.over&&(c="over"),v.preventVoidMoves&&(r===t?(this.debug("    drop over source node prevented"),c=null):"before"===c&&t&&r===t.getNextSibling()?(this.debug("    drop after source node prevented"),c=null):"after"===c&&t&&r===t.getPrevSibling()?(this.debug("    drop before source node prevented"),c=null):"over"===c&&t&&t.parent===r&&t.isLastSibling()&&(this.debug("    drop last child over own parent prevented"),c=null)),n.helper.data("hitMode",c))),"before"===c||"after"===c||!v.autoExpandMS||!1===r.hasChildren()||r.expanded||v.dragExpand&&!1===v.dragExpand(r,h)||r.scheduleAction("expand",v.autoExpandMS),c&&v.dragOver&&(h.hitMode=c,y=v.dragOver(r,h)),d=!1!==y&&null!==c,v.smartRevert&&(o.options.revert=!d),this._local._setDndStatus(t,r,n.helper,c,d);break;case"drop":(c=n.helper.data("hitMode"))&&v.dragDrop&&(h.hitMode=c,v.dragDrop(r,h));break;case"leave":r.scheduleAction("cancel"),n.helper.data("enterResponse",null),n.helper.data("hitMode",null),this._local._setDndStatus(t,r,n.helper,"out",void 0),v.dragLeave&&v.dragLeave(r,h);break;case"stop":m.removeClass("fancytree-drag-source"),k(document).off(".fancytree-dnd"),v.dragStop&&v.dragStop(r,h);break;default:k.error("Unsupported drag event: "+e)}return y},_cancelDrag:function(){var e=k.ui.ddmanager.current;e&&e.cancel()}}),k.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.dnd5.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function r(){y=null,b=null,h&&h.removeClass(d+" "+s),h=null,m=null,D=null}function t(e){return 0===e?"":e>0?"+"+e:""+e}function a(r,a){if(a.options.dnd5.scroll&&function(r,t){var a,n,o=r.options.dnd5,d=r.$scrollParent[0],s=o.scrollSensitivity,l=o.scrollSpeed,i=0;d!==document&&"HTML"!==d.tagName?(a=r.$scrollParent.offset(),n=d.scrollTop,a.top+d.offsetHeight-t.pageY<s?d.scrollHeight-r.$scrollParent.innerHeight()-n>0&&(d.scrollTop=i=n+l):n>0&&t.pageY-a.top<s&&(d.scrollTop=i=n-l)):(n=e(document).scrollTop())>0&&t.pageY-n<s?(i=n-l,e(document).scrollTop(i)):e(window).height()-(t.pageY-n)<s&&(i=n+l,e(document).scrollTop(i)),i&&r.debug("autoScroll: "+i+"px")}(a.tree,r),!a.node)return a.tree.warn("Ignored dragover for non-node"),x;var o,d,s,u,y=null,b=a.tree,h=b.options,D=h.dnd5,E=a.node,N=a.otherNode,S="center",C=e(E.span),k=C.find("span.fancytree-title");if(!1===m)return b.debug("Ignored dragover, since dragenter returned false."),!1;if("string"==typeof m?e.error("assert failed: dragenter returned string"):(d=C.offset(),u=(r.pageY-d.top)/C.height(),m.after&&u>.75?y="after":!m.over&&m.after&&u>.5?y="after":m.before&&u<=.25?y="before":!m.over&&m.before&&u<=.5?y="before":m.over&&(y="over"),D.preventVoidMoves&&(E===N?(E.debug("Drop over source node prevented."),y=null):"before"===y&&N&&E===N.getNextSibling()?(E.debug("Drop after source node prevented."),y=null):"after"===y&&N&&E===N.getPrevSibling()?(E.debug("Drop before source node prevented."),y=null):"over"===y&&N&&N.parent===E&&N.isLastSibling()&&(E.debug("Drop last child over own parent prevented."),y=null))),a.hitMode=y,y&&D.dragOver&&(D.dragOver(E,a),y=a.hitMode),x=y,"after"===y||"before"===y||"over"===y){switch(o=D.dropMarkerOffsetX||0,y){case"before":S="top",o+=D.dropMarkerInsertOffsetX||0;break;case"after":S="bottom",o+=D.dropMarkerInsertOffsetX||0}s={my:"left"+t(o)+" center",at:"left "+S,of:k},h.rtl&&(s.my="right"+t(-o)+" center",s.at="right "+S),v.toggleClass(i,"after"===y).toggleClass(p,"over"===y).toggleClass(f,"before"===y).show().position(n.fixPositionOptions(s))}else v.hide();return e(E.span).toggleClass(c,"after"===y||"before"===y||"over"===y).toggleClass(i,"after"===y).toggleClass(f,"before"===y).toggleClass(l,"over"===y).toggleClass(g,!1===y),y}var n=e.ui.fancytree,o=/Mac/.test(navigator.platform),d="fancytree-drag-source",s="fancytree-drag-remove",l="fancytree-drop-accept",i="fancytree-drop-after",f="fancytree-drop-before",p="fancytree-drop-over",g="fancytree-drop-reject",c="fancytree-drop-target",u="application/x-fancytree-node",v=null,y=null,b=null,h=null,m=null,x=null,D=null;return e.ui.fancytree.registerExtension({name:"dnd5",version:"2.30.2",options:{autoExpandMS:1500,dropMarkerInsertOffsetX:-16,dropMarkerOffsetX:-24,multiSource:!1,dragImage:null,dropEffect:null,dropEffectDefault:"move",preventForeignNodes:!1,preventNonNodes:!1,preventRecursiveMoves:!0,preventVoidMoves:!0,scroll:!0,scrollSensitivity:20,scrollSpeed:5,setTextTypeJson:!1,dragStart:null,dragDrag:e.noop,dragEnd:e.noop,dragEnter:null,dragOver:e.noop,dragExpand:e.noop,dragDrop:e.noop,dragLeave:e.noop},treeInit:function(t){var i,f,c,E=t.tree,N=t.options,S=N.glyph||null,C=N.dnd5,k=n.getNode;e.inArray("dnd",N.extensions)>=0&&e.error("Extensions 'dnd' and 'dnd5' are mutually exclusive."),C.dragStop&&e.error("dragStop is not used by ext-dnd5. Use dragEnd instead."),C.dragStart&&n.overrideMethod(t.options,"createNode",function(e,r){this._super.apply(this,arguments),r.node.span.draggable=!0}),this._superApply(arguments),this.$container.addClass("fancytree-ext-dnd5"),c=e("<span>").appendTo(this.$container),this.$scrollParent=c.scrollParent(),c.remove(),(v=e("#fancytree-drop-marker")).length||(v=e("<div id='fancytree-drop-marker'></div>").hide().css({"z-index":1e3,"pointer-events":"none"}).prependTo("body"),S&&n.setSpanIcon(v[0],S.map._addClass,S.map.dropMarker)),v.toggleClass("fancytree-rtl",!!N.rtl),C.dragStart&&E.$container.on("dragstart drag dragend",function(t){var a,n=k(t),l=t.dataTransfer||t.originalEvent.dataTransfer,p={node:n,tree:E,options:E.options,originalEvent:t,dataTransfer:l,isCancelled:void 0},g=function(e,r){var t=r.options.dnd5,a=t.dropEffectDefault;if(t.dropEffect)return t.dropEffect(e,r);if(o){if(e.metaKey&&e.altKey)return"link";if(e.metaKey)return"move";if(e.altKey)return"copy"}else{if(e.ctrlKey)return"copy";if(e.shiftKey)return"move";if(e.altKey)return"link"}return a}(t,p),c="move"===g;switch(t.type){case"dragstart":if(!n)return E.info("Ignored dragstart on a non-node."),!1;y=n,!1===C.multiSource?b=[n]:!0===C.multiSource?(b=E.getSelectedNodes(),n.isSelected()||b.unshift(n)):b=C.multiSource(n,p),(h=e(e.map(b,function(e){return e.span}))).addClass(d),a=JSON.stringify(n.toDict());try{l.setData(u,a),l.setData("text/html",e(n.span).html()),l.setData("text/plain",n.title)}catch(e){E.warn("Could not set data (IE only accepts 'text') - "+e)}return C.setTextTypeJson?l.setData("text",a):l.setData("text",n.title),l.effectAllowed="all",f=null,C.dragImage?C.dragImage(n,p):(i=e(n.span).find(".fancytree-title"),b&&b.length>1&&(f=e("<span class='fancytree-childcounter'/>").text("+"+(b.length-1)).appendTo(i)),l.setDragImage&&l.setDragImage(i[0],-10,-10)),!1!==C.dragStart(n,p)?!0:(r(),!1);case"drag":h.toggleClass(s,c),C.dragDrag(n,p);break;case"dragend":r(),p.isCancelled="none"===g,v.hide(),f&&(f.remove(),f=null),C.dragEnd(n,p)}}),C.dragEnter&&E.$container.on("dragenter dragover dragleave drop",function(t){var n,o,d,s,i=null,f=k(t),c=t.dataTransfer||t.originalEvent.dataTransfer,h={node:f,tree:E,options:E.options,hitMode:m,originalEvent:t,dataTransfer:c,otherNode:y||null,otherNodeList:b||null,otherNodeData:null,dropEffect:void 0,isCancelled:void 0};switch(t.type){case"dragenter":if(D=null,!f){E.debug("Ignore non-node "+t.type+": "+t.target.tagName+"."+t.target.className),m=!1;break}if(e(f.span).addClass(p).removeClass(l+" "+g),d=e.inArray(u,c.types)>=0,C.preventNonNodes&&!d){f.debug("Reject dropping a non-node."),m=!1;break}if(C.preventForeignNodes&&(!y||y.tree!==f.tree)){f.debug("Reject dropping a foreign node."),m=!1;break}v.show(),C.preventRecursiveMoves&&f.isDescendantOf(h.otherNode)?(f.debug("Reject dropping below own ancestor."),s=!1):s=function(r){var t;return!!r&&(t=e.isPlainObject(r)?{over:!!r.over,before:!!r.before,after:!!r.after}:e.isArray(r)?{over:e.inArray("over",r)>=0,before:e.inArray("before",r)>=0,after:e.inArray("after",r)>=0}:{over:!0===r||"over"===r,before:!0===r||"before"===r,after:!0===r||"after"===r},0!==Object.keys(t).length&&t)}(C.dragEnter(f,h)),m=s,i=s&&(s.over||s.before||s.after);break;case"dragover":if(!f){E.debug("Ignore non-node "+t.type+": "+t.target.tagName+"."+t.target.className);break}i=!!(x=a(t,h)),"over"!==x||f.expanded||!1===f.hasChildren()?D=null:D?C.autoExpandMS&&Date.now()-D>C.autoExpandMS&&(!C.dragExpand||!1!==C.dragExpand(f,h))&&f.setExpanded():D=Date.now();break;case"dragleave":if(!f){E.debug("Ignore non-node "+t.type+": "+t.target.tagName+"."+t.target.className);break}if(!e(f.span).hasClass(p)){f.debug("Ignore dragleave (multi).");break}e(f.span).removeClass(p+" "+l+" "+g),f.scheduleAction("cancel"),C.dragLeave(f,h),v.hide();break;case"drop":if(e.inArray(u,c.types)>=0&&(o=c.getData(u),E.info(t.type+": getData('application/x-fancytree-node'): '"+o+"'")),o||(o=c.getData("text"),E.info(t.type+": getData('text'): '"+o+"'")),o)try{void 0!==(n=JSON.parse(o)).title&&(h.otherNodeData=n)}catch(e){}E.debug(t.type+": nodeData: '"+o+"', otherNodeData: ",h.otherNodeData),e(f.span).removeClass(p+" "+l+" "+g),v.hide(),h.hitMode=x,h.dropEffect=c.dropEffect,h.isCancelled="none"===h.dropEffect,C.dragDrop(f,h),t.preventDefault(),r()}if(i)return t.preventDefault(),!1})}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.dnd5.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(x){"use strict";var s,i,S=x.ui.fancytree,f=/Mac/.test(navigator.platform),p="fancytree-drag-source",g="fancytree-drag-remove",C="fancytree-drop-accept",M="fancytree-drop-after",k="fancytree-drop-before",A="fancytree-drop-over",T="fancytree-drop-reject",I="fancytree-drop-target",y="application/x-fancytree-node",O=null,b=null,h=null,c=null,j=null,u=null,v=null,m=null,P=null,E=null;function D(){h=b=u=m=v=E=j=null,c&&c.removeClass(p+" "+g),c=null,O&&O.hide(),i&&(i.remove(),i=null)}function R(e){return 0===e?"":0<e?"+"+e:""+e}function K(e,r){var t,o,a,n,d=r.tree,l=r.dataTransfer;"dragstart"===e.type?(r.effectAllowed=d.options.dnd5.effectAllowed,r.dropEffect=d.options.dnd5.dropEffectDefault):(r.effectAllowed=m,r.dropEffect=v),r.dropEffectSuggested=(o=e,a=(t=d).options.dnd5.dropEffectDefault,n=a,f?o.metaKey&&o.altKey?n="link":o.ctrlKey?n="link":o.metaKey?n="move":o.altKey&&(n="copy"):o.ctrlKey?n="copy":o.shiftKey?n="move":o.altKey&&(n="link"),n!==u&&t.info("evalEffectModifiers: "+o.type+" - evalEffectModifiers(): "+u+" -> "+n),u=n),r.isMove="move"===r.dropEffect,r.files=l.files||[]}function $(e,r,t){var o=r.tree,a=r.dataTransfer;return"dragstart"!==e.type&&m!==r.effectAllowed&&o.warn("effectAllowed should only be changed in dragstart event: "+e.type+": data.effectAllowed changed from "+m+" -> "+r.effectAllowed),!1===t&&(o.info("applyDropEffectCallback: allowDrop === false"),r.effectAllowed="none",r.dropEffect="none"),r.isMove="move"===r.dropEffect,m=r.effectAllowed,v=r.dropEffect,a.effectAllowed=m,a.dropEffect=v}function w(e,r){var t,o,a,n,d,l,s,i,f;if(r.options.dnd5.scroll&&(t=r.tree,o=e,d=t.options.dnd5,l=t.$scrollParent[0],s=d.scrollSensitivity,i=d.scrollSpeed,f=0,l!==document&&"HTML"!==l.tagName?(a=t.$scrollParent.offset(),n=l.scrollTop,a.top+l.offsetHeight-o.pageY<s?0<l.scrollHeight-t.$scrollParent.innerHeight()-n&&(l.scrollTop=f=n+i):0<n&&o.pageY-a.top<s&&(l.scrollTop=f=n-i)):0<(n=x(document).scrollTop())&&o.pageY-n<s?(f=n-i,x(document).scrollTop(f)):x(window).height()-(o.pageY-n)<s&&(f=n+i,x(document).scrollTop(f)),f&&t.debug("autoScroll: "+f+"px")),!r.node)return r.tree.warn("Ignored dragover for non-node"),P;var p,g,c,u,v=null,y=r.tree,b=y.options,h=b.dnd5,m=r.node,E=r.otherNode,D="center",w=x(m.span),N=w.find("span.fancytree-title");if(!1===j)return y.debug("Ignored dragover, since dragenter returned false."),!1;("string"==typeof j&&x.error("assert failed: dragenter returned string"),g=w.offset(),u=(e.pageY-g.top)/w.height(),j.after&&.75<u?v="after":!j.over&&j.after&&.5<u?v="after":j.before&&u<=.25?v="before":!j.over&&j.before&&u<=.5?v="before":j.over&&(v="over"),h.preventVoidMoves&&"move"===r.dropEffect&&(m===E?(m.debug("Drop over source node prevented."),v=null):"before"===v&&E&&m===E.getNextSibling()?(m.debug("Drop after source node prevented."),v=null):"after"===v&&E&&m===E.getPrevSibling()?(m.debug("Drop before source node prevented."),v=null):"over"===v&&E&&E.parent===m&&E.isLastSibling()&&(m.debug("Drop last child over own parent prevented."),v=null)),(r.hitMode=v)&&h.dragOver)&&(K(e,r),h.dragOver(m,r),$(e,r,!!v),v=r.hitMode);if("after"===(P=v)||"before"===v||"over"===v){switch(p=h.dropMarkerOffsetX||0,v){case"before":D="top",p+=h.dropMarkerInsertOffsetX||0;break;case"after":D="bottom",p+=h.dropMarkerInsertOffsetX||0}c={my:"left"+R(p)+" center",at:"left "+D,of:N},b.rtl&&(c.my="right"+R(-p)+" center",c.at="right "+D),O.toggleClass(M,"after"===v).toggleClass(A,"over"===v).toggleClass(k,"before"===v).show().position(S.fixPositionOptions(c))}else O.hide();return x(m.span).toggleClass(I,"after"===v||"before"===v||"over"===v).toggleClass(M,"after"===v).toggleClass(k,"before"===v).toggleClass(C,"over"===v).toggleClass(T,!1===v),v}function d(e){var r,t,o,a,n,d,l,s=this,i=s.options.dnd5,f=null,p=S.getNode(e),g=e.dataTransfer||e.originalEvent.dataTransfer,c={tree:s,node:p,options:s.options,originalEvent:e.originalEvent,widget:s.widget,hitMode:j,dataTransfer:g,otherNode:b||null,otherNodeList:h||null,otherNodeData:null,useDefaultImage:!0,dropEffect:void 0,dropEffectSuggested:void 0,effectAllowed:void 0,files:null,isCancelled:void 0,isMove:void 0};switch(e.type){case"dragenter":if(E=null,!p){s.debug("Ignore non-node "+e.type+": "+e.target.tagName+"."+e.target.className),j=!1;break}if(x(p.span).addClass(A).removeClass(C+" "+T),o=0<=x.inArray(y,g.types),i.preventNonNodes&&!o){p.debug("Reject dropping a non-node."),j=!1;break}if(i.preventForeignNodes&&(!b||b.tree!==p.tree)){p.debug("Reject dropping a foreign node."),j=!1;break}if(i.preventSameParent&&c.otherNode&&c.otherNode.tree===p.tree&&p.parent===c.otherNode.parent){p.debug("Reject dropping as sibling (same parent)."),j=!1;break}if(i.preventRecursion&&c.otherNode&&c.otherNode.tree===p.tree&&p.isDescendantOf(c.otherNode)){p.debug("Reject dropping below own ancestor."),j=!1;break}O.show(),K(e,c),a=i.dragEnter(p,c),n=!!(d=a)&&(l=x.isPlainObject(d)?{over:!!d.over,before:!!d.before,after:!!d.after}:x.isArray(d)?{over:0<=x.inArray("over",d),before:0<=x.inArray("before",d),after:0<=x.inArray("after",d)}:{over:!0===d||"over"===d,before:!0===d||"before"===d,after:!0===d||"after"===d},0!==Object.keys(l).length&&l),$(e,c,f=(j=n)&&(n.over||n.before||n.after));break;case"dragover":if(!p){s.debug("Ignore non-node "+e.type+": "+e.target.tagName+"."+e.target.className);break}f=!!(P=w(e,c)),"over"!==P||p.expanded||!1===p.hasChildren()?E=null:E?i.autoExpandMS&&Date.now()-E>i.autoExpandMS&&(!i.dragExpand||!1!==i.dragExpand(p,c))&&p.setExpanded():E=Date.now();break;case"dragleave":if(!p){s.debug("Ignore non-node "+e.type+": "+e.target.tagName+"."+e.target.className);break}if(!x(p.span).hasClass(A)){p.debug("Ignore dragleave (multi).");break}x(p.span).removeClass(A+" "+C+" "+T),p.scheduleAction("cancel"),i.dragLeave(p,c),O.hide();break;case"drop":if(0<=x.inArray(y,g.types)&&(t=g.getData(y),s.info(e.type+": getData('application/x-fancytree-node'): '"+t+"'")),t||(t=g.getData("text"),s.info(e.type+": getData('text'): '"+t+"'")),t)try{void 0!==(r=JSON.parse(t)).title&&(c.otherNodeData=r)}catch(e){}s.debug(e.type+": nodeData: '"+t+"', otherNodeData: ",c.otherNodeData),x(p.span).removeClass(A+" "+C+" "+T),c.hitMode=P,K(e,c),c.isCancelled=!P;var u=b&&b.span,v=b&&b.tree;i.dragDrop(p,c),e.preventDefault(),u&&!document.body.contains(u)&&(v===s?(s.debug("Drop handler removed source element: generating dragEnd."),i.dragEnd(b,c)):s.warn("Drop handler removed source element: dragend event may be lost.")),D()}if(f)return e.preventDefault(),!1}return x.ui.fancytree.getDragNodeList=function(){return h||[]},x.ui.fancytree.getDragNode=function(){return b},x.ui.fancytree.registerExtension({name:"dnd5",version:"2.31.0",options:{autoExpandMS:1500,dropMarkerInsertOffsetX:-16,dropMarkerOffsetX:-24,multiSource:!1,effectAllowed:"all",dropEffectDefault:"move",preventForeignNodes:!1,preventNonNodes:!1,preventRecursion:!0,preventSameParent:!1,preventVoidMoves:!0,scroll:!0,scrollSensitivity:20,scrollSpeed:5,setTextTypeJson:!1,dragStart:null,dragDrag:x.noop,dragEnd:x.noop,dragEnter:null,dragOver:x.noop,dragExpand:x.noop,dragDrop:x.noop,dragLeave:x.noop},treeInit:function(e){var r,t=e.tree,o=e.options,a=o.glyph||null,n=o.dnd5;0<=x.inArray("dnd",o.extensions)&&x.error("Extensions 'dnd' and 'dnd5' are mutually exclusive."),n.dragStop&&x.error("dragStop is not used by ext-dnd5. Use dragEnd instead."),null!=n.preventRecursiveMoves&&x.error("preventRecursiveMoves was renamed to preventRecursion."),n.dragStart&&S.overrideMethod(e.options,"createNode",function(e,r){this._super.apply(this,arguments),r.node.span?r.node.span.draggable=!0:r.node.warn("Cannot add `draggable`: no span tag")}),this._superApply(arguments),this.$container.addClass("fancytree-ext-dnd5"),r=x("<span>").appendTo(this.$container),this.$scrollParent=r.scrollParent(),r.remove(),(O=x("#fancytree-drop-marker")).length||(O=x("<div id='fancytree-drop-marker'></div>").hide().css({"z-index":1e3,"pointer-events":"none"}).prependTo("body"),a&&S.setSpanIcon(O[0],a.map._addClass,a.map.dropMarker)),O.toggleClass("fancytree-rtl",!!o.rtl),n.dragStart&&t.$container.on("dragstart drag dragend",function(e){var r,t=this,o=t.options.dnd5,a=S.getNode(e),n=e.dataTransfer||e.originalEvent.dataTransfer,d={tree:t,node:a,options:t.options,originalEvent:e.originalEvent,widget:t.widget,dataTransfer:n,useDefaultImage:!0,dropEffect:void 0,dropEffectSuggested:void 0,effectAllowed:void 0,files:void 0,isCancelled:void 0,isMove:void 0};switch(e.type){case"dragstart":if(!a)return t.info("Ignored dragstart on a non-node."),!1;b=a,!1===o.multiSource?h=[a]:!0===o.multiSource?(h=t.getSelectedNodes(),a.isSelected()||h.unshift(a)):h=o.multiSource(a,d),(c=x(x.map(h,function(e){return e.span}))).addClass(p);var l=a.toDict();l.treeId=a.tree._id,r=JSON.stringify(l);try{n.setData(y,r),n.setData("text/html",x(a.span).html()),n.setData("text/plain",a.title)}catch(e){t.warn("Could not set data (IE only accepts 'text') - "+e)}return o.setTextTypeJson?n.setData("text",r):n.setData("text",a.title),K(e,d),!1===o.dragStart(a,d)?(D(),!1):($(e,d),i=null,d.useDefaultImage&&(s=x(a.span).find(".fancytree-title"),h&&1<h.length&&(i=x("<span class='fancytree-childcounter'/>").text("+"+(h.length-1)).appendTo(s)),n.setDragImage&&n.setDragImage(s[0],-10,-10)),!0);case"drag":K(e,d),o.dragDrag(a,d),$(e,d),c.toggleClass(g,d.isMove);break;case"dragend":K(e,d),D(),d.isCancelled=!P,o.dragEnd(a,d,!P)}}.bind(t)),n.dragEnter&&t.$container.on("dragenter dragover dragleave drop",d.bind(t))}}),x.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.edit.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";var t=/Mac/.test(navigator.platform),i=e.ui.fancytree.escapeHtml,n=e.ui.fancytree.unescapeHtml;return e.ui.fancytree._FancytreeNodeClass.prototype.editStart=function(){var t,i=this,r=this.tree,a=r.ext.edit,s=r.options.edit,o=e(".fancytree-title",i.span),d={node:i,tree:r,options:r.options,isNew:e(i[r.statusClassPropName]).hasClass("fancytree-edit-new"),orgTitle:i.title,input:null,dirty:!1};if(!1===s.beforeEdit.call(i,{type:"beforeEdit"},d))return!1;e.ui.fancytree.assert(!a.currentNode,"recursive edit"),a.currentNode=this,a.eventData=d,r.widget._unbind(),a.lastDraggableAttrValue=i.span.draggable,a.lastDraggableAttrValue&&(i.span.draggable=!1),e(document).on("mousedown.fancytree-edit",function(t){e(t.target).hasClass("fancytree-edit-input")||i.editEnd(!0,t)}),t=e("<input />",{class:"fancytree-edit-input",type:"text",value:r.options.escapeTitles?d.orgTitle:n(d.orgTitle)}),a.eventData.input=t,null!=s.adjustWidthOfs&&t.width(o.width()+s.adjustWidthOfs),null!=s.inputCss&&t.css(s.inputCss),o.html(t),t.focus().change(function(e){t.addClass("fancytree-edit-dirty")}).keydown(function(t){switch(t.which){case e.ui.keyCode.ESCAPE:i.editEnd(!1,t);break;case e.ui.keyCode.ENTER:return i.editEnd(!0,t),!1}t.stopPropagation()}).blur(function(e){return i.editEnd(!0,e)}),s.edit.call(i,{type:"edit"},d)},e.ui.fancytree._FancytreeNodeClass.prototype.editEnd=function(t,n){var r,a=this,s=this.tree,o=s.ext.edit,d=o.eventData,l=s.options.edit,c=e(".fancytree-title",a.span).find("input.fancytree-edit-input");return l.trim&&c.val(e.trim(c.val())),r=c.val(),d.dirty=r!==a.title,d.originalEvent=n,!1===t?d.save=!1:d.isNew?d.save=""!==r:d.save=d.dirty&&""!==r,!1!==l.beforeClose.call(a,{type:"beforeClose"},d)&&((!d.save||!1!==l.save.call(a,{type:"save"},d))&&(c.removeClass("fancytree-edit-dirty").off(),e(document).off(".fancytree-edit"),d.save?(a.setTitle(s.options.escapeTitles?r:i(r)),a.setFocus()):d.isNew?(a.remove(),a=d.node=null,o.relatedNode.setFocus()):(a.renderTitle(),a.setFocus()),o.eventData=null,o.currentNode=null,o.relatedNode=null,s.widget._bind(),o.lastDraggableAttrValue&&(a.span.draggable=!0),e(s.$container).focus(),d.input=null,l.close.call(a,{type:"close"},d),!0))},e.ui.fancytree._FancytreeNodeClass.prototype.editCreateNode=function(t,i){var n,r=this.tree,a=this;t=t||"child",null==i?i={title:""}:"string"==typeof i?i={title:i}:e.ui.fancytree.assert(e.isPlainObject(i)),"child"!==t||this.isExpanded()||!1===this.hasChildren()?((n=this.addNode(i,t)).match=!0,e(n[r.statusClassPropName]).removeClass("fancytree-hide").addClass("fancytree-match"),n.makeVisible().done(function(){e(n[r.statusClassPropName]).addClass("fancytree-edit-new"),a.tree.ext.edit.relatedNode=a,n.editStart()})):this.setExpanded().done(function(){a.editCreateNode(t,i)})},e.ui.fancytree._FancytreeClass.prototype.isEditing=function(){return this.ext.edit?this.ext.edit.currentNode:null},e.ui.fancytree._FancytreeNodeClass.prototype.isEditing=function(){return!!this.tree.ext.edit&&this.tree.ext.edit.currentNode===this},e.ui.fancytree.registerExtension({name:"edit",version:"2.30.2",options:{adjustWidthOfs:4,allowEmpty:!1,inputCss:{minWidth:"3em"},triggerStart:["f2","mac+enter","shift+click"],trim:!0,beforeClose:e.noop,beforeEdit:e.noop,close:e.noop,edit:e.noop,save:e.noop},currentNode:null,treeInit:function(e){this._superApply(arguments),this.$container.addClass("fancytree-ext-edit")},nodeClick:function(t){var i=e.ui.fancytree.eventToString(t.originalEvent),n=t.options.edit.triggerStart;return"shift+click"===i&&e.inArray("shift+click",n)>=0&&t.originalEvent.shiftKey?(t.node.editStart(),!1):"click"===i&&e.inArray("clickActive",n)>=0&&t.node.isActive()&&!t.node.isEditing()&&e(t.originalEvent.target).hasClass("fancytree-title")?(t.node.editStart(),!1):this._superApply(arguments)},nodeDblclick:function(t){return e.inArray("dblclick",t.options.edit.triggerStart)>=0?(t.node.editStart(),!1):this._superApply(arguments)},nodeKeydown:function(i){switch(i.originalEvent.which){case 113:if(e.inArray("f2",i.options.edit.triggerStart)>=0)return i.node.editStart(),!1;break;case e.ui.keyCode.ENTER:if(e.inArray("mac+enter",i.options.edit.triggerStart)>=0&&t)return i.node.editStart(),!1}return this._superApply(arguments)}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.edit.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(l){"use strict";var t=/Mac/.test(navigator.platform),c=l.ui.fancytree.escapeHtml,o=l.ui.fancytree.unescapeHtml;return l.ui.fancytree._FancytreeNodeClass.prototype.editStart=function(){var t,i=this,e=this.tree,n=e.ext.edit,r=e.options.edit,a=l(".fancytree-title",i.span),s={node:i,tree:e,options:e.options,isNew:l(i[e.statusClassPropName]).hasClass("fancytree-edit-new"),orgTitle:i.title,input:null,dirty:!1};if(!1===r.beforeEdit.call(i,{type:"beforeEdit"},s))return!1;l.ui.fancytree.assert(!n.currentNode,"recursive edit"),n.currentNode=this,n.eventData=s,e.widget._unbind(),n.lastDraggableAttrValue=i.span.draggable,n.lastDraggableAttrValue&&(i.span.draggable=!1),l(document).on("mousedown.fancytree-edit",function(e){l(e.target).hasClass("fancytree-edit-input")||i.editEnd(!0,e)}),t=l("<input />",{class:"fancytree-edit-input",type:"text",value:e.options.escapeTitles?s.orgTitle:o(s.orgTitle)}),n.eventData.input=t,null!=r.adjustWidthOfs&&t.width(a.width()+r.adjustWidthOfs),null!=r.inputCss&&t.css(r.inputCss),a.html(t),t.focus().change(function(e){t.addClass("fancytree-edit-dirty")}).on("keydown",function(e){switch(e.which){case l.ui.keyCode.ESCAPE:i.editEnd(!1,e);break;case l.ui.keyCode.ENTER:return i.editEnd(!0,e),!1}e.stopPropagation()}).blur(function(e){return i.editEnd(!0,e)}),r.edit.call(i,{type:"edit"},s)},l.ui.fancytree._FancytreeNodeClass.prototype.editEnd=function(e,t){var i,n=this,r=this.tree,a=r.ext.edit,s=a.eventData,o=r.options.edit,d=l(".fancytree-title",n.span).find("input.fancytree-edit-input");return o.trim&&d.val(l.trim(d.val())),i=d.val(),s.dirty=i!==n.title,s.originalEvent=t,!1===e?s.save=!1:s.isNew?s.save=""!==i:s.save=s.dirty&&""!==i,!1!==o.beforeClose.call(n,{type:"beforeClose"},s)&&((!s.save||!1!==o.save.call(n,{type:"save"},s))&&(d.removeClass("fancytree-edit-dirty").off(),l(document).off(".fancytree-edit"),s.save?(n.setTitle(r.options.escapeTitles?i:c(i)),n.setFocus()):s.isNew?(n.remove(),n=s.node=null,a.relatedNode.setFocus()):(n.renderTitle(),n.setFocus()),a.eventData=null,a.currentNode=null,a.relatedNode=null,r.widget._bind(),a.lastDraggableAttrValue&&(n.span.draggable=!0),l(r.$container).focus(),s.input=null,o.close.call(n,{type:"close"},s),!0))},l.ui.fancytree._FancytreeNodeClass.prototype.editCreateNode=function(e,t){var i,n=this.tree,r=this;e=e||"child",null==t?t={title:""}:"string"==typeof t?t={title:t}:l.ui.fancytree.assert(l.isPlainObject(t)),"child"!==e||this.isExpanded()||!1===this.hasChildren()?((i=this.addNode(t,e)).match=!0,l(i[n.statusClassPropName]).removeClass("fancytree-hide").addClass("fancytree-match"),i.makeVisible().done(function(){l(i[n.statusClassPropName]).addClass("fancytree-edit-new"),r.tree.ext.edit.relatedNode=r,i.editStart()})):this.setExpanded().done(function(){r.editCreateNode(e,t)})},l.ui.fancytree._FancytreeClass.prototype.isEditing=function(){return this.ext.edit?this.ext.edit.currentNode:null},l.ui.fancytree._FancytreeNodeClass.prototype.isEditing=function(){return!!this.tree.ext.edit&&this.tree.ext.edit.currentNode===this},l.ui.fancytree.registerExtension({name:"edit",version:"2.31.0",options:{adjustWidthOfs:4,allowEmpty:!1,inputCss:{minWidth:"3em"},triggerStart:["f2","mac+enter","shift+click"],trim:!0,beforeClose:l.noop,beforeEdit:l.noop,close:l.noop,edit:l.noop,save:l.noop},currentNode:null,treeInit:function(e){var n=e.tree;this._superApply(arguments),this.$container.addClass("fancytree-ext-edit").on("fancytreebeforeupdateviewport",function(e,t){var i=n.isEditing();i&&(i.info("Cancel edit due to scroll event."),i.editEnd(!1,e))})},nodeClick:function(e){var t=l.ui.fancytree.eventToString(e.originalEvent),i=e.options.edit.triggerStart;return"shift+click"===t&&0<=l.inArray("shift+click",i)&&e.originalEvent.shiftKey?(e.node.editStart(),!1):"click"===t&&0<=l.inArray("clickActive",i)&&e.node.isActive()&&!e.node.isEditing()&&l(e.originalEvent.target).hasClass("fancytree-title")?(e.node.editStart(),!1):this._superApply(arguments)},nodeDblclick:function(e){return 0<=l.inArray("dblclick",e.options.edit.triggerStart)?(e.node.editStart(),!1):this._superApply(arguments)},nodeKeydown:function(e){switch(e.originalEvent.which){case 113:if(0<=l.inArray("f2",e.options.edit.triggerStart))return e.node.editStart(),!1;break;case l.ui.keyCode.ENTER:if(0<=l.inArray("mac+enter",e.options.edit.triggerStart)&&t)return e.node.editStart(),!1}return this._superApply(arguments)}}),l.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.filter.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(e){return(e+"").replace(/([.?*+\^\$\[\]\\(){}|-])/g,"\\$1")}var i="__not_found__",n=e.ui.fancytree.escapeHtml;return e.ui.fancytree._FancytreeClass.prototype._applyFilterImpl=function(a,r,s){var l,o,d,c,u,h=0,p=this.options,f=p.escapeTitles,y=p.autoCollapse,g=e.extend({},p.filter,s),m="hide"===g.mode,x=!!g.leavesOnly&&!r;if("string"==typeof a){if(""===a)return this.warn("Fancytree passing an empty string as a filter is handled as clearFilter()."),void this.clearFilter();l=g.fuzzy?a.split("").reduce(function(e,t){return e+"[^"+t+"]*"+t}):t(a),d=new RegExp(".*"+l+".*","i"),c=new RegExp(t(a),"gi"),a=function(t){if(!t.title)return!1;var i=f?t.title:function(t){return t.indexOf(">")>=0?e("<div/>").html(t).text():t}(t.title),a=!!d.test(i);return a&&g.highlight&&(f?(u=i.replace(c,function(e){return"\ufff7"+e+"\ufff8"}),t.titleWithHighlight=n(u).replace(/\uFFF7/g,"<mark>").replace(/\uFFF8/g,"</mark>")):t.titleWithHighlight=i.replace(c,function(e){return"<mark>"+e+"</mark>"})),a}}return this.enableFilter=!0,this.lastFilterArgs=arguments,this.$div.addClass("fancytree-ext-filter"),m?this.$div.addClass("fancytree-ext-filter-hide"):this.$div.addClass("fancytree-ext-filter-dimm"),this.$div.toggleClass("fancytree-ext-filter-hide-expanders",!!g.hideExpanders),this.visit(function(e){delete e.match,delete e.titleWithHighlight,e.subMatchCount=0}),(o=this.getRootNode()._findDirectChild(i))&&o.remove(),p.autoCollapse=!1,this.visit(function(e){if(!x||null==e.children){var t=a(e),i=!1;if("skip"===t)return e.visit(function(e){e.match=!1},!0),"skip";t||!r&&"branch"!==t||!e.parent.match||(t=!0,i=!0),t&&(h++,e.match=!0,e.visitParents(function(e){e.subMatchCount+=1,!g.autoExpand||i||e.expanded||(e.setExpanded(!0,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),e._filterAutoExpanded=!0)}))}}),p.autoCollapse=y,0===h&&g.nodata&&m&&(o=g.nodata,e.isFunction(o)&&(o=o()),!0===o?o={}:"string"==typeof o&&(o={title:o}),o=e.extend({statusNodeType:"nodata",key:i,title:this.options.strings.noData},o),this.getRootNode().addNode(o).match=!0),this.render(),h},e.ui.fancytree._FancytreeClass.prototype.filterNodes=function(e,t){return"boolean"==typeof t&&(t={leavesOnly:t},this.warn("Fancytree.filterNodes() leavesOnly option is deprecated since 2.9.0 / 2015-04-19. Use opts.leavesOnly instead.")),this._applyFilterImpl(e,!1,t)},e.ui.fancytree._FancytreeClass.prototype.applyFilter=function(e){return this.warn("Fancytree.applyFilter() is deprecated since 2.1.0 / 2014-05-29. Use .filterNodes() instead."),this.filterNodes.apply(this,arguments)},e.ui.fancytree._FancytreeClass.prototype.filterBranches=function(e,t){return this._applyFilterImpl(e,!0,t)},e.ui.fancytree._FancytreeClass.prototype.clearFilter=function(){var t,n=this.getRootNode()._findDirectChild(i),a=this.options.escapeTitles,r=this.options.enhanceTitle;n&&n.remove(),this.visit(function(i){i.match&&i.span&&(t=e(i.span).find(">span.fancytree-title"),a?t.text(i.title):t.html(i.title),r&&r({type:"enhanceTitle"},{node:i,$title:t})),delete i.match,delete i.subMatchCount,delete i.titleWithHighlight,i.$subMatchBadge&&(i.$subMatchBadge.remove(),delete i.$subMatchBadge),i._filterAutoExpanded&&i.expanded&&i.setExpanded(!1,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),delete i._filterAutoExpanded}),this.enableFilter=!1,this.lastFilterArgs=null,this.$div.removeClass("fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"),this.render()},e.ui.fancytree._FancytreeClass.prototype.isFilterActive=function(){return!!this.enableFilter},e.ui.fancytree._FancytreeNodeClass.prototype.isMatched=function(){return!(this.tree.enableFilter&&!this.match)},e.ui.fancytree.registerExtension({name:"filter",version:"2.30.2",options:{autoApply:!0,autoExpand:!1,counter:!0,fuzzy:!1,hideExpandedCounter:!0,hideExpanders:!1,highlight:!0,leavesOnly:!1,nodata:!0,mode:"dimm"},nodeLoadChildren:function(e,t){return this._superApply(arguments).done(function(){e.tree.enableFilter&&e.tree.lastFilterArgs&&e.options.filter.autoApply&&e.tree._applyFilterImpl.apply(e.tree,e.tree.lastFilterArgs)})},nodeSetExpanded:function(e,t,i){return delete e.node._filterAutoExpanded,!t&&e.options.filter.hideExpandedCounter&&e.node.$subMatchBadge&&e.node.$subMatchBadge.show(),this._superApply(arguments)},nodeRenderStatus:function(t){var i,n=t.node,a=t.tree,r=t.options.filter,s=e(n.span).find("span.fancytree-title"),l=e(n[a.statusClassPropName]),o=t.options.enhanceTitle,d=t.options.escapeTitles;return i=this._super(t),l.length&&a.enableFilter?(l.toggleClass("fancytree-match",!!n.match).toggleClass("fancytree-submatch",!!n.subMatchCount).toggleClass("fancytree-hide",!(n.match||n.subMatchCount)),!r.counter||!n.subMatchCount||n.isExpanded()&&r.hideExpandedCounter?n.$subMatchBadge&&n.$subMatchBadge.hide():(n.$subMatchBadge||(n.$subMatchBadge=e("<span class='fancytree-childcounter'/>"),e("span.fancytree-icon, span.fancytree-custom-icon",n.span).append(n.$subMatchBadge)),n.$subMatchBadge.show().text(n.subMatchCount)),!n.span||n.isEditing&&n.isEditing.call(n)||(n.titleWithHighlight?s.html(n.titleWithHighlight):d?s.text(n.title):s.html(n.title),o&&o({type:"enhanceTitle"},{node:n,$title:s})),i):i}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.filter.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(g){"use strict";var m="__not_found__",x=g.ui.fancytree.escapeHtml;function F(e){return(e+"").replace(/([.?*+^$[\]\\(){}|-])/g,"\\$1")}return g.ui.fancytree._FancytreeClass.prototype._applyFilterImpl=function(n,a,e){var t,i,r,s,l,o,d=0,c=this.options,u=c.escapeTitles,h=c.autoCollapse,p=g.extend({},c.filter,e),f="hide"===p.mode,y=!!p.leavesOnly&&!a;if("string"==typeof n){if(""===n)return this.warn("Fancytree passing an empty string as a filter is handled as clearFilter()."),void this.clearFilter();t=p.fuzzy?n.split("").reduce(function(e,t){return e+"[^"+t+"]*"+t}):F(n),r=new RegExp(".*"+t+".*","i"),s=new RegExp(F(n),"gi"),n=function(e){if(!e.title)return!1;var t,i=u?e.title:0<=(t=e.title).indexOf(">")?g("<div/>").html(t).text():t,n=!!r.test(i);return n&&p.highlight&&(e.titleWithHighlight=u?(l=i.replace(s,function(e){return"\ufff7"+e+"\ufff8"}),x(l).replace(/\uFFF7/g,"<mark>").replace(/\uFFF8/g,"</mark>")):i.replace(s,function(e){return"<mark>"+e+"</mark>"})),n}}return this.enableFilter=!0,this.lastFilterArgs=arguments,o=this.enableUpdate(!1),this.$div.addClass("fancytree-ext-filter"),f?this.$div.addClass("fancytree-ext-filter-hide"):this.$div.addClass("fancytree-ext-filter-dimm"),this.$div.toggleClass("fancytree-ext-filter-hide-expanders",!!p.hideExpanders),this.visit(function(e){delete e.match,delete e.titleWithHighlight,e.subMatchCount=0}),(i=this.getRootNode()._findDirectChild(m))&&i.remove(),c.autoCollapse=!1,this.visit(function(e){if(!y||null==e.children){var t=n(e),i=!1;if("skip"===t)return e.visit(function(e){e.match=!1},!0),"skip";t||!a&&"branch"!==t||!e.parent.match||(i=t=!0),t&&(d++,e.match=!0,e.visitParents(function(e){e.subMatchCount+=1,!p.autoExpand||i||e.expanded||(e.setExpanded(!0,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),e._filterAutoExpanded=!0)}))}}),c.autoCollapse=h,0===d&&p.nodata&&f&&(i=p.nodata,g.isFunction(i)&&(i=i()),!0===i?i={}:"string"==typeof i&&(i={title:i}),i=g.extend({statusNodeType:"nodata",key:m,title:this.options.strings.noData},i),this.getRootNode().addNode(i).match=!0),this._callHook("treeStructureChanged",this,"applyFilter"),this.enableUpdate(o),d},g.ui.fancytree._FancytreeClass.prototype.filterNodes=function(e,t){return"boolean"==typeof t&&(t={leavesOnly:t},this.warn("Fancytree.filterNodes() leavesOnly option is deprecated since 2.9.0 / 2015-04-19. Use opts.leavesOnly instead.")),this._applyFilterImpl(e,!1,t)},g.ui.fancytree._FancytreeClass.prototype.filterBranches=function(e,t){return this._applyFilterImpl(e,!0,t)},g.ui.fancytree._FancytreeClass.prototype.clearFilter=function(){var t,e=this.getRootNode()._findDirectChild(m),i=this.options.escapeTitles,n=this.options.enhanceTitle,a=this.enableUpdate(!1);e&&e.remove(),this.visit(function(e){e.match&&e.span&&(t=g(e.span).find(">span.fancytree-title"),i?t.text(e.title):t.html(e.title),n&&n({type:"enhanceTitle"},{node:e,$title:t})),delete e.match,delete e.subMatchCount,delete e.titleWithHighlight,e.$subMatchBadge&&(e.$subMatchBadge.remove(),delete e.$subMatchBadge),e._filterAutoExpanded&&e.expanded&&e.setExpanded(!1,{noAnimation:!0,noEvents:!0,scrollIntoView:!1}),delete e._filterAutoExpanded}),this.enableFilter=!1,this.lastFilterArgs=null,this.$div.removeClass("fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"),this._callHook("treeStructureChanged",this,"clearFilter"),this.enableUpdate(a)},g.ui.fancytree._FancytreeClass.prototype.isFilterActive=function(){return!!this.enableFilter},g.ui.fancytree._FancytreeNodeClass.prototype.isMatched=function(){return!(this.tree.enableFilter&&!this.match)},g.ui.fancytree.registerExtension({name:"filter",version:"2.31.0",options:{autoApply:!0,autoExpand:!1,counter:!0,fuzzy:!1,hideExpandedCounter:!0,hideExpanders:!1,highlight:!0,leavesOnly:!1,nodata:!0,mode:"dimm"},nodeLoadChildren:function(e,t){var i=e.tree;return this._superApply(arguments).done(function(){i.enableFilter&&i.lastFilterArgs&&e.options.filter.autoApply&&i._applyFilterImpl.apply(i,i.lastFilterArgs)})},nodeSetExpanded:function(e,t,i){var n=e.node;return delete n._filterAutoExpanded,!t&&e.options.filter.hideExpandedCounter&&n.$subMatchBadge&&n.$subMatchBadge.show(),this._superApply(arguments)},nodeRenderStatus:function(e){var t,i=e.node,n=e.tree,a=e.options.filter,r=g(i.span).find("span.fancytree-title"),s=g(i[n.statusClassPropName]),l=e.options.enhanceTitle,o=e.options.escapeTitles;return t=this._super(e),s.length&&n.enableFilter&&(s.toggleClass("fancytree-match",!!i.match).toggleClass("fancytree-submatch",!!i.subMatchCount).toggleClass("fancytree-hide",!(i.match||i.subMatchCount)),!a.counter||!i.subMatchCount||i.isExpanded()&&a.hideExpandedCounter?i.$subMatchBadge&&i.$subMatchBadge.hide():(i.$subMatchBadge||(i.$subMatchBadge=g("<span class='fancytree-childcounter'/>"),g("span.fancytree-icon, span.fancytree-custom-icon",i.span).append(i.$subMatchBadge)),i.$subMatchBadge.show().text(i.subMatchCount)),!i.span||i.isEditing&&i.isEditing.call(i)||(i.titleWithHighlight?r.html(i.titleWithHighlight):o?r.text(i.title):r.html(i.title),l&&l({type:"enhanceTitle"},{node:i,$title:r}))),t}}),g.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.glyph.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function r(r,n,a,o){var t=a.map,c=t[o],d=e(r),i=n+" "+(t._addClass||"");"string"==typeof c?(r.innerHTML="",d.attr("class",i+" "+c)):c&&(c.text?r.textContent=""+c.text:c.html?r.innerHTML=c.html:r.innerHTML="",d.attr("class",i+" "+(c.addClass||"")))}var n=e.ui.fancytree,a={awesome3:{_addClass:"",checkbox:"icon-check-empty",checkboxSelected:"icon-check",checkboxUnknown:"icon-check icon-muted",dragHelper:"icon-caret-right",dropMarker:"icon-caret-right",error:"icon-exclamation-sign",expanderClosed:"icon-caret-right",expanderLazy:"icon-angle-right",expanderOpen:"icon-caret-down",loading:"icon-refresh icon-spin",nodata:"icon-meh",noExpander:"",radio:"icon-circle-blank",radioSelected:"icon-circle",doc:"icon-file-alt",docOpen:"icon-file-alt",folder:"icon-folder-close-alt",folderOpen:"icon-folder-open-alt"},awesome4:{_addClass:"fa",checkbox:"fa-square-o",checkboxSelected:"fa-check-square-o",checkboxUnknown:"fa-square fancytree-helper-indeterminate-cb",dragHelper:"fa-arrow-right",dropMarker:"fa-long-arrow-right",error:"fa-warning",expanderClosed:"fa-caret-right",expanderLazy:"fa-angle-right",expanderOpen:"fa-caret-down",loading:{html:"<span class='fa fa-spinner fa-pulse' />"},nodata:"fa-meh-o",noExpander:"",radio:"fa-circle-thin",radioSelected:"fa-circle",doc:"fa-file-o",docOpen:"fa-file-o",folder:"fa-folder-o",folderOpen:"fa-folder-open-o"},awesome5:{_addClass:"",checkbox:"far fa-square",checkboxSelected:"far fa-check-square",checkboxUnknown:"fas fa-square fancytree-helper-indeterminate-cb",radio:"far fa-circle",radioSelected:"fas fa-circle",radioUnknown:"far fa-dot-circle",dragHelper:"fas fa-arrow-right",dropMarker:"fas fa-long-arrow-alt-right",error:"fas fa-exclamation-triangle",expanderClosed:"fas fa-caret-right",expanderLazy:"fas fa-angle-right",expanderOpen:"fas fa-caret-down",loading:"fas fa-spinner fa-pulse",nodata:"far fa-meh",noExpander:"",doc:"far fa-file",docOpen:"far fa-file",folder:"far fa-folder",folderOpen:"far fa-folder-open"},bootstrap3:{_addClass:"glyphicon",checkbox:"glyphicon-unchecked",checkboxSelected:"glyphicon-check",checkboxUnknown:"glyphicon-expand fancytree-helper-indeterminate-cb",dragHelper:"glyphicon-play",dropMarker:"glyphicon-arrow-right",error:"glyphicon-warning-sign",expanderClosed:"glyphicon-menu-right",expanderLazy:"glyphicon-menu-right",expanderOpen:"glyphicon-menu-down",loading:"glyphicon-refresh fancytree-helper-spin",nodata:"glyphicon-info-sign",noExpander:"",radio:"glyphicon-remove-circle",radioSelected:"glyphicon-ok-circle",doc:"glyphicon-file",docOpen:"glyphicon-file",folder:"glyphicon-folder-close",folderOpen:"glyphicon-folder-open"},material:{_addClass:"material-icons",checkbox:{text:"check_box_outline_blank"},checkboxSelected:{text:"check_box"},checkboxUnknown:{text:"indeterminate_check_box"},dragHelper:{text:"play_arrow"},dropMarker:{text:"arrow-forward"},error:{text:"warning"},expanderClosed:{text:"chevron_right"},expanderLazy:{text:"last_page"},expanderOpen:{text:"expand_more"},loading:{text:"autorenew",addClass:"fancytree-helper-spin"},nodata:{text:"info"},noExpander:{text:""},radio:{text:"radio_button_unchecked"},radioSelected:{text:"radio_button_checked"},doc:{text:"insert_drive_file"},docOpen:{text:"insert_drive_file"},folder:{text:"folder"},folderOpen:{text:"folder_open"}}};return e.ui.fancytree.registerExtension({name:"glyph",version:"2.30.2",options:{preset:null,map:{}},treeInit:function(r){var o=r.tree,t=r.options.glyph;t.preset?(n.assert(!!a[t.preset],"Invalid value for `options.glyph.preset`: "+t.preset),t.map=e.extend({},a[t.preset],t.map)):o.warn("ext-glyph: missing `preset` option."),this._superApply(arguments),o.$container.addClass("fancytree-ext-glyph")},nodeRenderStatus:function(a){var o,t,c,d=a.node,i=e(d.span),l=a.options.glyph;return t=this._super(a),d.isRoot()?t:((c=i.children("span.fancytree-expander").get(0))&&r(c,"fancytree-expander",l,d.expanded&&d.hasChildren()?"expanderOpen":d.isUndefined()?"expanderLazy":d.hasChildren()?"expanderClosed":"noExpander"),(c=d.tr?e("td",d.tr).find("span.fancytree-checkbox").get(0):i.children("span.fancytree-checkbox").get(0))&&(o=n.evalOption("checkbox",d,d,l,!1),d.parent&&d.parent.radiogroup||"radio"===o?r(c,"fancytree-checkbox fancytree-radio",l,d.selected?"radioSelected":"radio"):r(c,"fancytree-checkbox",l,d.selected?"checkboxSelected":d.partsel?"checkboxUnknown":"checkbox")),(c=i.children("span.fancytree-icon").get(0))&&r(c,"fancytree-icon",l,d.statusNodeType?d.statusNodeType:d.folder?d.expanded&&d.hasChildren()?"folderOpen":"folder":d.expanded?"docOpen":"doc"),t)},nodeSetStatus:function(n,a,o,t){var c,d,i=n.options.glyph,l=n.node;return c=this._superApply(arguments),"error"!==a&&"loading"!==a&&"nodata"!==a||(l.parent?(d=e("span.fancytree-expander",l.span).get(0))&&r(d,"fancytree-expander",i,a):(d=e(".fancytree-statusnode-"+a,l[this.nodeContainerAttrName]).find("span.fancytree-icon").get(0))&&r(d,"fancytree-icon",i,a)),c}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.glyph.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(l){"use strict";var d=l.ui.fancytree,a={awesome3:{_addClass:"",checkbox:"icon-check-empty",checkboxSelected:"icon-check",checkboxUnknown:"icon-check icon-muted",dragHelper:"icon-caret-right",dropMarker:"icon-caret-right",error:"icon-exclamation-sign",expanderClosed:"icon-caret-right",expanderLazy:"icon-angle-right",expanderOpen:"icon-caret-down",loading:"icon-refresh icon-spin",nodata:"icon-meh",noExpander:"",radio:"icon-circle-blank",radioSelected:"icon-circle",doc:"icon-file-alt",docOpen:"icon-file-alt",folder:"icon-folder-close-alt",folderOpen:"icon-folder-open-alt"},awesome4:{_addClass:"fa",checkbox:"fa-square-o",checkboxSelected:"fa-check-square-o",checkboxUnknown:"fa-square fancytree-helper-indeterminate-cb",dragHelper:"fa-arrow-right",dropMarker:"fa-long-arrow-right",error:"fa-warning",expanderClosed:"fa-caret-right",expanderLazy:"fa-angle-right",expanderOpen:"fa-caret-down",loading:{html:"<span class='fa fa-spinner fa-pulse' />"},nodata:"fa-meh-o",noExpander:"",radio:"fa-circle-thin",radioSelected:"fa-circle",doc:"fa-file-o",docOpen:"fa-file-o",folder:"fa-folder-o",folderOpen:"fa-folder-open-o"},awesome5:{_addClass:"",checkbox:"far fa-square",checkboxSelected:"far fa-check-square",checkboxUnknown:"fas fa-square fancytree-helper-indeterminate-cb",radio:"far fa-circle",radioSelected:"fas fa-circle",radioUnknown:"far fa-dot-circle",dragHelper:"fas fa-arrow-right",dropMarker:"fas fa-long-arrow-alt-right",error:"fas fa-exclamation-triangle",expanderClosed:"fas fa-caret-right",expanderLazy:"fas fa-angle-right",expanderOpen:"fas fa-caret-down",loading:"fas fa-spinner fa-pulse",nodata:"far fa-meh",noExpander:"",doc:"far fa-file",docOpen:"far fa-file",folder:"far fa-folder",folderOpen:"far fa-folder-open"},bootstrap3:{_addClass:"glyphicon",checkbox:"glyphicon-unchecked",checkboxSelected:"glyphicon-check",checkboxUnknown:"glyphicon-expand fancytree-helper-indeterminate-cb",dragHelper:"glyphicon-play",dropMarker:"glyphicon-arrow-right",error:"glyphicon-warning-sign",expanderClosed:"glyphicon-menu-right",expanderLazy:"glyphicon-menu-right",expanderOpen:"glyphicon-menu-down",loading:"glyphicon-refresh fancytree-helper-spin",nodata:"glyphicon-info-sign",noExpander:"",radio:"glyphicon-remove-circle",radioSelected:"glyphicon-ok-circle",doc:"glyphicon-file",docOpen:"glyphicon-file",folder:"glyphicon-folder-close",folderOpen:"glyphicon-folder-open"},material:{_addClass:"material-icons",checkbox:{text:"check_box_outline_blank"},checkboxSelected:{text:"check_box"},checkboxUnknown:{text:"indeterminate_check_box"},dragHelper:{text:"play_arrow"},dropMarker:{text:"arrow-forward"},error:{text:"warning"},expanderClosed:{text:"chevron_right"},expanderLazy:{text:"last_page"},expanderOpen:{text:"expand_more"},loading:{text:"autorenew",addClass:"fancytree-helper-spin"},nodata:{text:"info"},noExpander:{text:""},radio:{text:"radio_button_unchecked"},radioSelected:{text:"radio_button_checked"},doc:{text:"insert_drive_file"},docOpen:{text:"insert_drive_file"},folder:{text:"folder"},folderOpen:{text:"folder_open"}}};function i(e,n,r,a){var o=r.map,t=o[a],c=l(e),d=c.find(".fancytree-childcounter"),i=n+" "+(o._addClass||"");"string"==typeof t?(e.innerHTML="",c.attr("class",i+" "+t).append(d)):t&&(t.text?e.textContent=""+t.text:t.html?e.innerHTML=t.html:e.innerHTML="",c.attr("class",i+" "+(t.addClass||"")).append(d))}return l.ui.fancytree.registerExtension({name:"glyph",version:"2.31.0",options:{preset:null,map:{}},treeInit:function(e){var n=e.tree,r=e.options.glyph;r.preset?(d.assert(!!a[r.preset],"Invalid value for `options.glyph.preset`: "+r.preset),r.map=l.extend({},a[r.preset],r.map)):n.warn("ext-glyph: missing `preset` option."),this._superApply(arguments),n.$container.addClass("fancytree-ext-glyph")},nodeRenderStatus:function(e){var n,r,a,o=e.node,t=l(o.span),c=e.options.glyph;return r=this._super(e),o.isRoot()||((a=t.children("span.fancytree-expander").get(0))&&i(a,"fancytree-expander",c,o.expanded&&o.hasChildren()?"expanderOpen":o.isUndefined()?"expanderLazy":o.hasChildren()?"expanderClosed":"noExpander"),(a=o.tr?l("td",o.tr).find("span.fancytree-checkbox").get(0):t.children("span.fancytree-checkbox").get(0))&&(n=d.evalOption("checkbox",o,o,c,!1),o.parent&&o.parent.radiogroup||"radio"===n?i(a,"fancytree-checkbox fancytree-radio",c,o.selected?"radioSelected":"radio"):i(a,"fancytree-checkbox",c,o.selected?"checkboxSelected":o.partsel?"checkboxUnknown":"checkbox")),(a=t.children("span.fancytree-icon").get(0))&&i(a,"fancytree-icon",c,o.statusNodeType?o.statusNodeType:o.folder?o.expanded&&o.hasChildren()?"folderOpen":"folder":o.expanded?"docOpen":"doc")),r},nodeSetStatus:function(e,n,r,a){var o,t,c=e.options.glyph,d=e.node;return o=this._superApply(arguments),"error"!==n&&"loading"!==n&&"nodata"!==n||(d.parent?(t=l("span.fancytree-expander",d.span).get(0))&&i(t,"fancytree-expander",c,n):(t=l(".fancytree-statusnode-"+n,d[this.nodeContainerAttrName]).find("span.fancytree-icon").get(0))&&i(t,"fancytree-icon",c,n)),o}}),l.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.gridnav.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree","./jquery.fancytree.table"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree.table"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n){var i,r=null,o=0;return t.children().each(function(){if(o>=n)return r=e(this),!1;i=e(this).prop("colspan"),o+=i||1}),r}function n(n,r){var o,a,u=n.closest("td"),s=null;switch(r){case i.LEFT:s=u.prev();break;case i.RIGHT:s=u.next();break;case i.UP:case i.DOWN:for(a=function(t,n){var i,r=n.get(0),o=0;return t.children().each(function(){if(this===r)return!1;i=e(this).prop("colspan"),o+=i||1}),o}(o=u.parent(),u);(o=r===i.UP?o.prev():o.next()).length&&(o.is(":hidden")||!(s=t(o,a))||!s.find(":input,a").length););}return s}var i=e.ui.keyCode,r={text:[i.UP,i.DOWN],checkbox:[i.UP,i.DOWN,i.LEFT,i.RIGHT],link:[i.UP,i.DOWN,i.LEFT,i.RIGHT],radiobutton:[i.UP,i.DOWN,i.LEFT,i.RIGHT],"select-one":[i.LEFT,i.RIGHT],"select-multiple":[i.LEFT,i.RIGHT]};return e.ui.fancytree.registerExtension({name:"gridnav",version:"2.30.2",options:{autofocusInput:!1,handleCursorKeys:!0},treeInit:function(t){this._requireExtension("table",!0,!0),this._superApply(arguments),this.$container.addClass("fancytree-ext-gridnav"),this.$container.on("focusin",function(n){var i,r=e.ui.fancytree.getNode(n.target);r&&!r.isActive()&&(i=t.tree._makeHookContext(r,n),t.tree._callHook("nodeSetActive",i,!0))})},nodeSetActive:function(t,n,i){var r=t.options.gridnav,o=t.node,a=t.originalEvent||{},u=e(a.target).is(":input");n=!1!==n,this._superApply(arguments),n&&(t.options.titlesTabbable?(u||(e(o.span).find("span.fancytree-title").focus(),o.setFocus()),t.tree.$container.attr("tabindex","-1")):r.autofocusInput&&!u&&e(o.tr||o.span).find(":input:enabled:first").focus())},nodeKeydown:function(t){var i,o,a,u=t.options.gridnav,s=t.originalEvent,c=e(s.target);return c.is(":input:enabled")?i=c.prop("type"):c.is("a")&&(i="link"),i&&u.handleCursorKeys?!((o=r[i])&&e.inArray(s.which,o)>=0&&(a=n(c,s.which))&&a.length&&(a.find(":input:enabled,a").focus(),1)):this._superApply(arguments)}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.gridnav.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree","./jquery.fancytree.table"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree.table"),module.exports=e(require("jquery"))):e(jQuery)}(function(l){"use strict";var p=l.ui.keyCode,s={text:[p.UP,p.DOWN],checkbox:[p.UP,p.DOWN,p.LEFT,p.RIGHT],link:[p.UP,p.DOWN,p.LEFT,p.RIGHT],radiobutton:[p.UP,p.DOWN,p.LEFT,p.RIGHT],"select-one":[p.LEFT,p.RIGHT],"select-multiple":[p.LEFT,p.RIGHT]};function f(e,t){var n,i=null,r=0;return e.children().each(function(){if(t<=r)return i=l(this),!1;n=l(this).prop("colspan"),r+=n||1}),i}function u(e,t){var n,i,r,o,a,s,u=e.closest("td"),c=null;switch(t){case p.LEFT:c=u.prev();break;case p.RIGHT:c=u.next();break;case p.UP:case p.DOWN:for(n=u.parent(),r=n,a=u.get(0),s=0,r.children().each(function(){if(this===a)return!1;o=l(this).prop("colspan"),s+=o||1}),i=s;(n=t===p.UP?n.prev():n.next()).length&&(n.is(":hidden")||!(c=f(n,i))||!c.find(":input,a").length););}return c}return l.ui.fancytree.registerExtension({name:"gridnav",version:"2.31.0",options:{autofocusInput:!1,handleCursorKeys:!0},treeInit:function(i){this._requireExtension("table",!0,!0),this._superApply(arguments),this.$container.addClass("fancytree-ext-gridnav"),this.$container.on("focusin",function(e){var t,n=l.ui.fancytree.getNode(e.target);n&&!n.isActive()&&(t=i.tree._makeHookContext(n,e),i.tree._callHook("nodeSetActive",t,!0))})},nodeSetActive:function(e,t,n){var i=e.options.gridnav,r=e.node,o=e.originalEvent||{},a=l(o.target).is(":input");t=!1!==t,this._superApply(arguments),t&&(e.options.titlesTabbable?(a||(l(r.span).find("span.fancytree-title").focus(),r.setFocus()),e.tree.$container.attr("tabindex","-1")):i.autofocusInput&&!a&&l(r.tr||r.span).find(":input:enabled").first().focus())},nodeKeydown:function(e){var t,n,i,r=e.options.gridnav,o=e.originalEvent,a=l(o.target);return a.is(":input:enabled")?t=a.prop("type"):a.is("a")&&(t="link"),t&&r.handleCursorKeys?!((n=s[t])&&0<=l.inArray(o.which,n)&&(i=u(a,o.which))&&i.length)||(i.find(":input:enabled,a").focus(),!1):this._superApply(arguments)}}),l.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.multi.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";return e.ui.fancytree.registerExtension({name:"multi",version:"2.30.2",options:{allowNoSelect:!1,mode:"sameParent"},treeInit:function(t){this._superApply(arguments),this.$container.addClass("fancytree-ext-multi"),1===t.options.selectMode&&e.error("Fancytree ext-multi: selectMode: 1 (single) is not compatible.")},nodeClick:function(t){var i=t.tree,r=t.node,n=i.getActiveNode()||i.getFirstChild(),c="checkbox"===t.targetType,o="expander"===t.targetType;switch(e.ui.fancytree.eventToString(t.originalEvent)){case"click":if(o)break;c||(i.selectAll(!1),r.setSelected());break;case"shift+click":i.visitRows(function(e){if(e.setSelected(),e===r)return!1},{start:n,reverse:n.isBelowOf(r)});break;case"ctrl+click":case"meta+click":return void r.toggleSelected()}return this._superApply(arguments)},nodeKeydown:function(t){var i=t.tree,r=t.node,n=t.originalEvent;switch(e.ui.fancytree.eventToString(n)){case"up":case"down":i.selectAll(!1),r.navigate(n.which,!0),i.getActiveNode().setSelected();break;case"shift+up":case"shift+down":r.navigate(n.which,!0),i.getActiveNode().setSelected()}return this._superApply(arguments)}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.multi.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(o){"use strict";return o.ui.fancytree.registerExtension({name:"multi",version:"2.31.0",options:{allowNoSelect:!1,mode:"sameParent"},treeInit:function(e){this._superApply(arguments),this.$container.addClass("fancytree-ext-multi"),1===e.options.selectMode&&o.error("Fancytree ext-multi: selectMode: 1 (single) is not compatible.")},nodeClick:function(e){var t=e.tree,i=e.node,r=t.getActiveNode()||t.getFirstChild(),n="checkbox"===e.targetType,c="expander"===e.targetType;switch(o.ui.fancytree.eventToString(e.originalEvent)){case"click":if(c)break;n||(t.selectAll(!1),i.setSelected());break;case"shift+click":t.visitRows(function(e){if(e.setSelected(),e===i)return!1},{start:r,reverse:r.isBelowOf(i)});break;case"ctrl+click":case"meta+click":return void i.toggleSelected()}return this._superApply(arguments)},nodeKeydown:function(e){var t=e.tree,i=e.node,r=e.originalEvent;switch(o.ui.fancytree.eventToString(r)){case"up":case"down":t.selectAll(!1),i.navigate(r.which,!0),t.getActiveNode().setSelected();break;case"shift+up":case"shift+down":i.navigate(r.which,!0),t.getActiveNode().setSelected()}return this._superApply(arguments)}}),o.ui.fancytree});
 
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Extension 'jquery.fancytree.persist.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(o,i,s,r,n){var c,d,l,u,f=!1,p=o.options.persist.expandOpts,y=[],v=[];for(s=s||[],n=n||e.Deferred(),c=0,l=s.length;c<l;c++)d=s[c],(u=o.getNodeByKey(d))?r&&u.isUndefined()?(f=!0,o.debug("_loadLazyNodes: "+u+" is lazy: loading..."),"expand"===r?y.push(u.setExpanded(!0,p)):y.push(u.load())):(o.debug("_loadLazyNodes: "+u+" already loaded."),u.setExpanded(!0,p)):(v.push(d),o.debug("_loadLazyNodes: "+u+" was not yet found."));return e.when.apply(e,y).always(function(){if(f&&v.length>0)t(o,i,v,r,n);else{if(v.length)for(o.warn("_loadLazyNodes: could not load those keys: ",v),c=0,l=v.length;c<l;c++)d=s[c],i._appendKey(a,s[c],!1);n.resolve()}}),n}var o=null,i=window.localStorage?{get:function(e){return 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+/*! Extension 'jquery.fancytree.persist.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(y){"use strict";var t=null,o=window.localStorage?{get:function(e){return window.localStorage.getItem(e)},set:function(e,t){window.localStorage.setItem(e,t)},remove:function(e){window.localStorage.removeItem(e)}}:null,i=window.sessionStorage?{get:function(e){return window.sessionStorage.getItem(e)},set:function(e,t){window.sessionStorage.setItem(e,t)},remove:function(e){window.sessionStorage.removeItem(e)}}:null,s=y.ui.fancytree.assert,u="active",v="expanded",p="focus",f="selected";return"function"==typeof Cookies?t={get:Cookies.get,set:function(e,t){Cookies.set(e,t,this.options.persist.cookie)},remove:Cookies.remove}:y&&"function"==typeof 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+/*! Extension 'jquery.fancytree.table.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(b){"use strict";function S(e,t){t=t||"",e||b.error("Assertion failed "+t)}function N(e,n){e.visit(function(e){var t=e.tr;if(t&&(t.style.display=e.hide||!n?"none":""),!e.expanded)return"skip"})}return b.ui.fancytree.registerExtension({name:"table",version:"2.31.0",options:{checkboxColumnIdx:null,indentation:16,mergeStatusColumns:!0,nodeColumnIdx:0},treeInit:function(e){var t,n,r,o,d=e.tree,s=e.options,i=s.table,a=d.widget.element;if(null!=i.customStatus&&(null==s.renderStatusColumns?(d.warn("The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."),s.renderStatusColumns=i.customStatus):b.error("The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead.")),s.renderStatusColumns&&!0===s.renderStatusColumns&&(s.renderStatusColumns=s.renderColumns),a.addClass("fancytree-container fancytree-ext-table"),(o=a.find(">tbody")).length||(a.find(">tr").length&&b.error("Expected table > tbody > tr. 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-/*! Extension 'jquery.fancytree.themeroller.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";return e.ui.fancytree.registerExtension({name:"themeroller",version:"2.30.2",options:{activeClass:"ui-state-active",addClass:"ui-corner-all",focusClass:"ui-state-focus",hoverClass:"ui-state-hover",selectedClass:"ui-state-highlight"},treeInit:function(s){var t=s.widget.element,a=s.options.themeroller;this._superApply(arguments),"TABLE"===t[0].nodeName?(t.addClass("ui-widget ui-corner-all"),t.find(">thead tr").addClass("ui-widget-header"),t.find(">tbody").addClass("ui-widget-conent")):t.addClass("ui-widget ui-widget-content ui-corner-all"),t.delegate(".fancytree-node","mouseenter mouseleave",function(s){var t=e.ui.fancytree.getNode(s.target),i="mouseenter"===s.type;e(t.tr?t.tr:t.span).toggleClass(a.hoverClass+" "+a.addClass,i)})},treeDestroy:function(e){this._superApply(arguments),e.widget.element.removeClass("ui-widget ui-widget-content ui-corner-all")},nodeRenderStatus:function(s){var t={},a=s.node,i=e(a.tr?a.tr:a.span),l=s.options.themeroller;this._super(s),t[l.activeClass]=!1,t[l.focusClass]=!1,t[l.selectedClass]=!1,a.isActive()&&(t[l.activeClass]=!0),a.hasFocus()&&(t[l.focusClass]=!0),a.isSelected()&&!a.isActive()&&(t[l.selectedClass]=!0),i.toggleClass(l.activeClass,t[l.activeClass]),i.toggleClass(l.focusClass,t[l.focusClass]),i.toggleClass(l.selectedClass,t[l.selectedClass]),i.addClass(l.addClass)}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.themeroller.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(l){"use strict";return l.ui.fancytree.registerExtension({name:"themeroller",version:"2.31.0",options:{activeClass:"ui-state-active",addClass:"ui-corner-all",focusClass:"ui-state-focus",hoverClass:"ui-state-hover",selectedClass:"ui-state-highlight"},treeInit:function(e){var s=e.widget.element,a=e.options.themeroller;this._superApply(arguments),"TABLE"===s[0].nodeName?(s.addClass("ui-widget ui-corner-all"),s.find(">thead tr").addClass("ui-widget-header"),s.find(">tbody").addClass("ui-widget-conent")):s.addClass("ui-widget ui-widget-content ui-corner-all"),s.on("mouseenter mouseleave",".fancytree-node",function(e){var s=l.ui.fancytree.getNode(e.target),t="mouseenter"===e.type;l(s.tr?s.tr:s.span).toggleClass(a.hoverClass+" "+a.addClass,t)})},treeDestroy:function(e){this._superApply(arguments),e.widget.element.removeClass("ui-widget ui-widget-content ui-corner-all")},nodeRenderStatus:function(e){var s={},t=e.node,a=l(t.tr?t.tr:t.span),i=e.options.themeroller;this._super(e),s[i.activeClass]=!1,s[i.focusClass]=!1,s[i.selectedClass]=!1,t.isActive()&&(s[i.activeClass]=!0),t.hasFocus()&&(s[i.focusClass]=!0),t.isSelected()&&!t.isActive()&&(s[i.selectedClass]=!0),a.toggleClass(i.activeClass,s[i.activeClass]),a.toggleClass(i.focusClass,s[i.focusClass]),a.toggleClass(i.selectedClass,s[i.selectedClass]),a.addClass(i.addClass)}}),l.ui.fancytree});
 
-/*! Extension 'jquery.fancytree.wide.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,a){var n=e("#"+(t="fancytree-style-"+t));if(!a)return n.remove(),null;n.length||(n=e("<style />").attr("id",t).addClass("fancytree-style").prop("type","text/css").appendTo("head"));try{n.html(a)}catch(e){n[0].styleSheet.cssText=a}return n}function a(e,t,a,n,l,i){var s,r="#"+e+" span.fancytree-level-",c=[];for(s=0;s<t;s++)c.push(r+(s+1)+" span.fancytree-title { padding-left: "+(s*a+n)+i+"; }");return c.push("#"+e+" div.ui-effects-wrapper ul li span.fancytree-title, #"+e+" li.fancytree-animating span.fancytree-title { padding-left: "+l+i+"; position: static; width: auto; }"),c.join("\n")}var n=/^([+-]?(?:\d+|\d*\.\d+))([a-z]*|%)$/;return e.ui.fancytree.registerExtension({name:"wide",version:"2.30.2",options:{iconWidth:null,iconSpacing:null,labelSpacing:null,levelOfs:null},treeCreate:function(l){this._superApply(arguments),this.$container.addClass("fancytree-ext-wide");var i,s,r,c,o,p=l.options.wide,u=e("<li id='fancytreeTemp'><span class='fancytree-node'><span class='fancytree-icon' /><span class='fancytree-title' /></span><ul />").appendTo(l.tree.$container),f=u.find(".fancytree-icon"),h=u.find("ul"),d=p.iconSpacing||f.css("margin-left"),y=p.iconWidth||f.css("width"),m=p.labelSpacing||"3px",_=p.levelOfs||h.css("padding-left");u.remove(),s=d.match(n)[2],d=parseFloat(d,10),r=m.match(n)[2],m=parseFloat(m,10),c=y.match(n)[2],y=parseFloat(y,10),o=_.match(n)[2],s===c&&o===c&&r===c||e.error("iconWidth, iconSpacing, and levelOfs must have the same css measure unit"),this._local.measureUnit=c,this._local.levelOfs=parseFloat(_),this._local.lineOfs=(1+(l.options.checkbox?1:0)+(!1===l.options.icon?0:1))*(y+d)+d,this._local.labelOfs=m,this._local.maxDepth=10,t(i=this.$container.uniqueId().attr("id"),a(i,this._local.maxDepth,this._local.levelOfs,this._local.lineOfs,this._local.labelOfs,this._local.measureUnit))},treeDestroy:function(e){return t(this.$container.attr("id"),null),this._superApply(arguments)},nodeRenderStatus:function(n){var l,i,s=n.node,r=s.getLevel();return i=this._super(n),r>this._local.maxDepth&&(l=this.$container.attr("id"),this._local.maxDepth*=2,s.debug("Define global ext-wide css up to level "+this._local.maxDepth),t(l,a(l,this._local.maxDepth,this._local.levelOfs,this._local.lineOfs,this._local.labelSpacing,this._local.measureUnit))),e(s.span).addClass("fancytree-level-"+r),i}}),e.ui.fancytree});
+/*! Extension 'jquery.fancytree.wide.min.js' */!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree"),module.exports=e(require("jquery"))):e(jQuery)}(function(d){"use strict";var y=/^([+-]?(?:\d+|\d*\.\d+))([a-z]*|%)$/;function m(e,t){var a=d("#"+(e="fancytree-style-"+e));if(!t)return a.remove(),null;a.length||(a=d("<style />").attr("id",e).addClass("fancytree-style").prop("type","text/css").appendTo("head"));try{a.html(t)}catch(e){a[0].styleSheet.cssText=t}return a}function _(e,t,a,n,l,i){var s,r="#"+e+" span.fancytree-level-",c=[];for(s=0;s<t;s++)c.push(r+(s+1)+" span.fancytree-title { padding-left: "+(s*a+n)+i+"; }");return c.push("#"+e+" div.ui-effects-wrapper ul li span.fancytree-title, #"+e+" li.fancytree-animating span.fancytree-title { padding-left: "+l+i+"; position: static; width: auto; }"),c.join("\n")}return d.ui.fancytree.registerExtension({name:"wide",version:"2.31.0",options:{iconWidth:null,iconSpacing:null,labelSpacing:null,levelOfs:null},treeCreate:function(e){this._superApply(arguments),this.$container.addClass("fancytree-ext-wide");var t,a,n,l,i,s=e.options.wide,r=d("<li id='fancytreeTemp'><span class='fancytree-node'><span class='fancytree-icon' /><span class='fancytree-title' /></span><ul />").appendTo(e.tree.$container),c=r.find(".fancytree-icon"),o=r.find("ul"),p=s.iconSpacing||c.css("margin-left"),u=s.iconWidth||c.css("width"),f=s.labelSpacing||"3px",h=s.levelOfs||o.css("padding-left");r.remove(),a=p.match(y)[2],p=parseFloat(p,10),n=f.match(y)[2],f=parseFloat(f,10),l=u.match(y)[2],u=parseFloat(u,10),i=h.match(y)[2],a===l&&i===l&&n===l||d.error("iconWidth, iconSpacing, and levelOfs must have the same css measure unit"),this._local.measureUnit=l,this._local.levelOfs=parseFloat(h),this._local.lineOfs=(1+(e.options.checkbox?1:0)+(!1===e.options.icon?0:1))*(u+p)+p,this._local.labelOfs=f,this._local.maxDepth=10,m(t=this.$container.uniqueId().attr("id"),_(t,this._local.maxDepth,this._local.levelOfs,this._local.lineOfs,this._local.labelOfs,this._local.measureUnit))},treeDestroy:function(e){return m(this.$container.attr("id"),null),this._superApply(arguments)},nodeRenderStatus:function(e){var t,a,n=e.node,l=n.getLevel();return a=this._super(e),l>this._local.maxDepth&&(t=this.$container.attr("id"),this._local.maxDepth*=2,n.debug("Define global ext-wide css up to level "+this._local.maxDepth),m(t,_(t,this._local.maxDepth,this._local.levelOfs,this._local.lineOfs,this._local.labelSpacing,this._local.measureUnit))),d(n.span).addClass("fancytree-level-"+l),a}}),d.ui.fancytree});
 // Value returned by `require('jquery.fancytree')`
 return $.ui.fancytree;
 }));  // End of closure
diff --git a/dist/jquery.fancytree.min.js b/dist/jquery.fancytree.min.js
index 6a622bac..9c22b769 100644
--- a/dist/jquery.fancytree.min.js
+++ b/dist/jquery.fancytree.min.js
@@ -1 +1 @@
-!function(e){"function"==typeof define&&define.amd?define(["jquery","./jquery.fancytree.ui-deps"],e):"object"==typeof module&&module.exports?(require("./jquery.fancytree.ui-deps"),module.exports=e(require("jquery"))):e(jQuery)}(function(e){"use strict";function t(t,n){t||(n=n?": "+n:"",e.error("Fancytree assertion failed"+n))}function n(e,t){var n,i,r=window.console?window.console[e]:null;if(r)try{r.apply(window.console,t)}catch(e){for(i="",n=0;n<t.length;n++)i+=t[n];r(i)}}function i(){var t,n,r,o,s,a=arguments[0]||{},l=1,d=arguments.length;if("object"==typeof a||e.isFunction(a)||(a={}),l===d)throw"need at least two args";for(;l<d;l++)if(null!=(t=arguments[l]))for(n in t)r=a[n],a!==(o=t[n])&&(o&&e.isPlainObject(o)?(s=r&&e.isPlainObject(r)?r:{},a[n]=i(s,o)):void 0!==o&&(a[n]=o));return a}function r(e,t,n,i,r){return function(){var n=t[e],o=i[e],s=t.ext[r],a=function(){return n.apply(t,arguments)},l=function(e){return n.apply(t,e)};return function(){var e=t._local,n=t._super,i=t._superApply;try{return t._local=s,t._super=a,t._superApply=l,o.apply(t,arguments)}finally{t._local=e,t._super=n,t._superApply=i}}}()}function o(t,n,i,o){for(var s in i)"function"==typeof i[s]?"function"==typeof t[s]?t[s]=r(s,t,0,i,o):"_"===s.charAt(0)?t.ext[o][s]=r(s,t,0,i,o):e.error("Could not override tree."+s+". 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Use 'lazyLoad' (with uppercase L) instead."),t.options.lazyload.apply(this,arguments)}),e.isFunction(this.options.loaderror)&&e.error("The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."),void 0!==this.options.fx&&v.warn("The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."),void 0!==this.options.removeNode&&e.error("The 'removeNode' event was replaced by 'modifyChild' since 2.20 (2016-09-10).")),this.ext={},this.types={},this.columns={},this.data=d(this.$div),this._id=e.ui.fancytree._nextId++,this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this._tempCache={},this._lastMousedownNode=null,this._enableUpdate=!0,this.lastSelectedNode=null,this.systemFocusElement=null,this.lastQuicksearchTerm="",this.lastQuicksearchTime=0,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var n,i={tree:this};this.rootNode=new h(i,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,n=e("<ul>",{class:"ui-fancytree fancytree-container 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RegExp(/\.|\//),b=/[&<>"'\/]/g,m=/[<>"'\/]/g,x="$recursive_request",k={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;","/":"&#x2F;"},N={16:!0,17:!0,18:!0},_={8:"backspace",9:"tab",10:"return",13:"return",19:"pause",20:"capslock",27:"esc",32:"space",33:"pageup",34:"pagedown",35:"end",36:"home",37:"left",38:"up",39:"right",40:"down",45:"insert",46:"del",59:";",61:"=",96:"0",97:"1",98:"2",99:"3",100:"4",101:"5",102:"6",103:"7",104:"8",105:"9",106:"*",107:"+",109:"-",110:".",111:"/",112:"f1",113:"f2",114:"f3",115:"f4",116:"f5",117:"f6",118:"f7",119:"f8",120:"f9",121:"f10",122:"f11",123:"f12",144:"numlock",145:"scroll",173:"-",186:";",187:"=",188:",",189:"-",190:".",191:"/",192:"`",219:"[",220:"\\",221:"]",222:"'"},C={16:"shift",17:"ctrl",18:"alt",91:"meta",93:"meta"},w={0:"",1:"left",2:"middle",3:"right"},S="active expanded focus folder lazy radiogroup selected unselectable unselectableIgnore".split(" "),E={},T="columns types".split(" "),L="checkbox expanded extraClasses folder 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i=this.children?this.children[0]:null;return this.addChildren(e,i);case"child":case"over":return this.addChildren(e)}t(!1,"Invalid mode: "+n)},addPagingNode:function(t,n){var i,r;n=n||"child";{if(!1!==t)return t=e.extend({title:this.tree.options.strings.moreData,statusNodeType:"paging",icon:!1},t),this.partload=!0,this.addNode(t,n);for(i=this.children.length-1;i>=0;i--)"paging"===(r=this.children[i]).statusNodeType&&this.removeChild(r);this.partload=!1}},appendSibling:function(e){return this.addNode(e,"after")},applyPatch:function(t){if(null===t)return this.remove(),s(this);var n,i,r={children:!0,expanded:!0,parent:!0};for(n in t)i=t[n],r[n]||e.isFunction(i)||(A[n]?this[n]=i:this.data[n]=i);return t.hasOwnProperty("children")&&(this.removeChildren(),t.children&&this._setChildren(t.children)),this.isVisible()&&(this.renderTitle(),this.renderStatus()),t.hasOwnProperty("expanded")?this.setExpanded(t.expanded):s(this)},collapseSiblings:function(){return this.tree._callHook("nodeCollapseSiblings",this)},copyTo:function(e,t,n){return e.addNode(this.toDict(!0,n),t)},countChildren:function(e){var t,n,i,r=this.children;if(!r)return 0;if(i=r.length,!1!==e)for(t=0,n=i;t<n;t++)i+=r[t].countChildren();return i},debug:function(e){this.tree.options.debugLevel>=4&&(Array.prototype.unshift.call(arguments,this.toString()),n("log",arguments))},discard:function(){return this.warn("FancytreeNode.discard() is deprecated since 2014-02-16. Use .resetLazy() instead."),this.resetLazy()},discardMarkup:function(e){var t=e?"nodeRemoveMarkup":"nodeRemoveChildMarkup";this.tree._callHook(t,this)},error:function(e){this.options.debugLevel>=1&&(Array.prototype.unshift.call(arguments,this.toString()),n("error",arguments))},findAll:function(t){t=e.isFunction(t)?t:u(t);var n=[];return this.visit(function(e){t(e)&&n.push(e)}),n},findFirst:function(t){t=e.isFunction(t)?t:u(t);var n=null;return this.visit(function(e){if(t(e))return n=e,!1}),n},_changeSelectStatusAttrs:function(e){var n=!1,i=this.tree.options,r=v.evalOption("unselectable",this,this,i,!1),o=v.evalOption("unselectableStatus",this,this,i,void 0);switch(r&&null!=o&&(e=o),e){case!1:n=this.selected||this.partsel,this.selected=!1,this.partsel=!1;break;case!0:n=!this.selected||!this.partsel,this.selected=!0,this.partsel=!0;break;case void 0:n=this.selected||!this.partsel,this.selected=!1,this.partsel=!0;break;default:t(!1,"invalid state: "+e)}return n&&this.renderStatus(),n},fixSelection3AfterClick:function(e){var t=this.isSelected();this.visit(function(e){e._changeSelectStatusAttrs(t)}),this.fixSelection3FromEndNodes(e)},fixSelection3FromEndNodes:function(e){function n(e){var t,r,o,s,a,l,d,c,u=e.children;if(u&&u.length){for(l=!0,d=!1,t=0,r=u.length;t<r;t++)s=n(o=u[t]),v.evalOption("unselectableIgnore",o,o,i,!1)||(!1!==s&&(d=!0),!0!==s&&(l=!1));a=!!l||!!d&&void 0}else a=null==(c=v.evalOption("unselectableStatus",e,e,i,void 0))?!!e.selected:!!c;return e._changeSelectStatusAttrs(a),a}var i=this.tree.options;t(3===i.selectMode,"expected selectMode 3"),n(this),this.visitParents(function(e){var t,n,r,o,s,a=e.children,l=!0,d=!1;for(t=0,n=a.length;t<n;t++)r=a[t],v.evalOption("unselectableIgnore",r,r,i,!1)||(((o=null==(s=v.evalOption("unselectableStatus",r,r,i,void 0))?!!r.selected:!!s)||r.partsel)&&(d=!0),o||(l=!1));o=!!l||!!d&&void 0,e._changeSelectStatusAttrs(o)})},fromDict:function(t){for(var n in t)A[n]?this[n]=t[n]:"data"===n?e.extend(this.data,t.data):e.isFunction(t[n])||F[n]||(this.data[n]=t[n]);t.children&&(this.removeChildren(),this.addChildren(t.children)),this.renderTitle()},getChildren:function(){if(void 0!==this.hasChildren())return this.children},getFirstChild:function(){return this.children?this.children[0]:null},getIndex:function(){return e.inArray(this,this.parent.children)},getIndexHier:function(t,n){t=t||".";var i,r=[];return e.each(this.getParentList(!1,!0),function(e,t){i=""+(t.getIndex()+1),n&&(i=("0000000"+i).substr(-n)),r.push(i)}),r.join(t)},getKeyPath:function(e){var t=[],n=this.tree.options.keyPathSeparator;return this.visitParents(function(e){e.parent&&t.unshift(e.key)},!e),n+t.join(n)},getLastChild:function(){return this.children?this.children[this.children.length-1]:null},getLevel:function(){for(var e=0,t=this.parent;t;)e++,t=t.parent;return e},getNextSibling:function(){if(this.parent){var e,t,n=this.parent.children;for(e=0,t=n.length-1;e<t;e++)if(n[e]===this)return n[e+1]}return null},getParent:function(){return this.parent},getParentList:function(e,t){for(var n=[],i=t?this:this.parent;i;)(e||i.parent)&&n.unshift(i),i=i.parent;return n},getPrevSibling:function(){if(this.parent){var e,t,n=this.parent.children;for(e=1,t=n.length;e<t;e++)if(n[e]===this)return n[e-1]}return null},getSelectedNodes:function(e){var t=[];return this.visit(function(n){if(n.selected&&(t.push(n),!0===e))return"skip"}),t},hasChildren:function(){if(this.lazy){if(null==this.children)return;if(0===this.children.length)return!1;if(1===this.children.length&&this.children[0].isStatusNode())return;return!0}return!(!this.children||!this.children.length)},hasFocus:function(){return this.tree.hasFocus()&&this.tree.focusNode===this},info:function(e){this.tree.options.debugLevel>=3&&(Array.prototype.unshift.call(arguments,this.toString()),n("info",arguments))},isActive:function(){return this.tree.activeNode===this},isBelowOf:function(e){return this.getIndexHier(".",5)>e.getIndexHier(".",5)},isChildOf:function(e){return this.parent&&this.parent===e},isDescendantOf:function(t){if(!t||t.tree!==this.tree)return!1;for(var n=this.parent;n;){if(n===t)return!0;n===n.parent&&e.error("Recursive parent link: "+n),n=n.parent}return!1},isExpanded:function(){return!!this.expanded},isFirstSibling:function(){var e=this.parent;return!e||e.children[0]===this},isFolder:function(){return!!this.folder},isLastSibling:function(){var e=this.parent;return!e||e.children[e.children.length-1]===this},isLazy:function(){return!!this.lazy},isLoaded:function(){return!this.lazy||void 0!==this.hasChildren()},isLoading:function(){return!!this._isLoading},isRoot:function(){return this.isRootNode()},isPartsel:function(){return!this.selected&&!!this.partsel},isPartload:function(){return!!this.partload},isRootNode:function(){return this.tree.rootNode===this},isSelected:function(){return!!this.selected},isStatusNode:function(){return!!this.statusNodeType},isPagingNode:function(){return"paging"===this.statusNodeType},isTopLevel:function(){return this.tree.rootNode===this.parent},isUndefined:function(){return void 0===this.hasChildren()},isVisible:function(){var e,t,n=this.getParentList(!1,!1);for(e=0,t=n.length;e<t;e++)if(!n[e].expanded)return!1;return!0},lazyLoad:function(e){return this.warn("FancytreeNode.lazyLoad() is deprecated since 2014-02-16. Use .load() instead."),this.load(e)},load:function(e){var n,i,r=this,o=this.isExpanded();return t(this.isLazy(),"load() requires a lazy node"),e||this.isUndefined()?(this.isLoaded()&&this.resetLazy(),!1===(i=this.tree._triggerNodeEvent("lazyLoad",this))?s(this):(t("boolean"!=typeof i,"lazyLoad event must return source in data.result"),n=this.tree._callHook("nodeLoadChildren",this,i),o?(this.expanded=!0,n.always(function(){r.render()})):n.always(function(){r.renderStatus()}),n)):s(this)},makeVisible:function(t){var n,i=this,r=[],o=new e.Deferred,s=this.getParentList(!1,!1),a=s.length,l=!(t&&!0===t.noAnimation),d=!(t&&!1===t.scrollIntoView);for(n=a-1;n>=0;n--)r.push(s[n].setExpanded(!0,t));return e.when.apply(e,r).done(function(){d?i.scrollIntoView(l).done(function(){o.resolve()}):o.resolve()}),o.promise()},moveTo:function(n,i,r){void 0===i||"over"===i?i="child":"firstChild"===i&&(n.children&&n.children.length?(i="before",n=n.children[0]):i="child");var 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l.UP:for(d=this.getPrevSibling();d&&!e(d.span).is(":visible");)d=d.getPrevSibling();for(;d&&d.expanded&&d.children&&d.children.length;)d=d.children[d.children.length-1];!d&&this.parent&&this.parent.parent&&(d=this.parent),a=i(d);break;case l.DOWN:if(this.expanded&&this.children&&this.children.length)d=this.children[0];else for(r=(o=this.getParentList(!1,!0)).length-1;r>=0;r--){for(d=o[r].getNextSibling();d&&!e(d.span).is(":visible");)d=d.getNextSibling();if(d)break}a=i(d);break;default:!1}return a||s()},remove:function(){return this.parent.removeChild(this)},removeChild:function(e){return this.tree._callHook("nodeRemoveChild",this,e)},removeChildren:function(){return this.tree._callHook("nodeRemoveChildren",this)},removeClass:function(e){return this.toggleClass(e,!1)},render:function(e,t){return this.tree._callHook("nodeRender",this,e,t)},renderTitle:function(){return this.tree._callHook("nodeRenderTitle",this)},renderStatus:function(){return this.tree._callHook("nodeRenderStatus",this)},replaceWith:function(n){var i,r=this.parent,o=e.inArray(this,r.children),s=this;return t(this.isPagingNode(),"replaceWith() currently requires a paging status node"),(i=this.tree._callHook("nodeLoadChildren",this,n)).done(function(e){var t=s.children;for(p=0;p<t.length;p++)t[p].parent=r;r.children.splice.apply(r.children,[o+1,0].concat(t)),s.children=null,s.remove(),r.render()}).fail(function(){s.setExpanded()}),i},resetLazy:function(){this.removeChildren(),this.expanded=!1,this.lazy=!0,this.children=void 0,this.renderStatus()},scheduleAction:function(t,n){this.tree.timer&&(clearTimeout(this.tree.timer),this.tree.debug("clearTimeout(%o)",this.tree.timer)),this.tree.timer=null;var i=this;switch(t){case"cancel":break;case"expand":this.tree.timer=setTimeout(function(){i.tree.debug("setTimeout: trigger expand"),i.setExpanded(!0)},n);break;case"activate":this.tree.timer=setTimeout(function(){i.tree.debug("setTimeout: trigger 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setTimeout(function(){s._loadKeyPathImpl(a,u,l,c).done(function(){a.resolve()})},0),a.promise()},_loadKeyPathImpl:function(t,n,i,r){function o(e,t){var i,r,o=e.children;if(o)for(i=0,r=o.length;i<r;i++)if(n.matchKey(o[i],t))return o[i];return null}function s(e,t,i){n.callback(v,t,"loading"),t.load().done(function(){v._loadKeyPathImpl.call(v,e,n,t,i).always(l(e,v))}).fail(function(i){v.warn("loadKeyPath: error loading lazy "+t),n.callback(v,u,"error"),e.rejectWith(v)})}var a,d,c,u,h,f,p,g,v=this;for(h={},d=0;d<r.length;d++)for(p=r[d],f=i;p.length;){if(c=p.shift(),!(u=o(f,c))){this.warn("loadKeyPath: key not found: "+c+" (parent: "+f+")"),n.callback(this,c,"error");break}if(0===p.length){n.callback(this,u,"ok");break}if(u.lazy&&void 0===u.hasChildren()){n.callback(this,u,"loaded"),h[c=u.key]?h[c].pathSegList.push(p):h[c]={parent:u,pathSegList:[p]};break}n.callback(this,u,"loaded"),f=u}a=[];for(var y in h){var b=h[y];g=new e.Deferred,a.push(g),s(g,b.parent,b.pathSegList)}return 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this.rootNode.visit(e,!1)},visitRows:function(e,t){if(t&&t.reverse)return delete t.reverse,this._visitRowsUp(e,t);var n,i,r,o=0,s=!1===t.includeSelf,a=!!t.includeHidden,l=t.start||this.rootNode.children[0];for(i=l.parent;i;){for(n=(r=i.children).indexOf(l)+o;n<r.length;n++){if(l=r[n],!s&&!1===e(l))return!1;if(s=!1,l.children&&l.children.length&&(a||l.expanded)&&!1===l.visit(function(t){return!1!==e(t)&&(a||!t.children||t.expanded?void 0:"skip")},!1))return!1}l=i,i=i.parent,o=1}return!0},_visitRowsUp:function(t,n){for(var i,r,o=!!n.includeHidden,s=n.start||this.rootNode.children[0];;){if(r=s.parent,(i=r.children)[0]===s)s=r,i=r.children;else for(s=i[i.indexOf(s)-1];(o||s.expanded)&&s.children&&s.children.length;)r=s,s=(i=s.children)[i.length-1];if((o||e(s.span).is(":visible"))&&!1===t(s))return!1}},warn:function(e){this.options.debugLevel>=2&&(Array.prototype.unshift.call(arguments,this.toString()),n("warn",arguments))}},e.extend(f.prototype,{nodeClick:function(e){var 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r=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:n,details:e.status+": "+n});i.rejectWith(this,[r])})),e.isFunction(i.then)&&e.isFunction(i.catch)&&(s=i,i=new e.Deferred,s.then(function(e){i.resolve(e)},function(e){i.reject(e)})),e.isFunction(i.promise))a.nodeSetStatus(n,"loading"),i.done(function(e){a.nodeSetStatus(n,"ok"),l._requestId=null}).fail(function(e){var t;e!==x?(e.node&&e.error&&e.message?t=e:"[object Object]"===(t=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:e?e.message||e.toString():""})).message&&(t.message=""),l.warn("Load children failed ("+t.message+")",t),!1!==a._triggerNodeEvent("loadError",t,null)&&a.nodeSetStatus(n,"error",t.message,t.details)):l.warn("Ignored response for obsolete load request #"+d+" (expected #"+l._requestId+")")});else if(n.options.postProcess){var c=a._triggerNodeEvent("postProcess",n,n.originalEvent,{response:i,error:null,dataType:typeof i});(e.isArray(c)||e.isPlainObject(c)&&e.isArray(c.children))&&(i=c)}return e.when(i).done(function(i){var r,o;e.isPlainObject(i)&&(t(l.isRootNode(),"source may only be an object for root nodes (expecting an array of child objects otherwise)"),t(e.isArray(i.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),r=i,i=i.children,delete r.children,e.each(T,function(e,t){void 0!==r[t]&&(a[t]=r[t],delete r[t])}),e.extend(a.data,r)),t(e.isArray(i),"expected array of children"),l._setChildren(i),a.options.nodata&&0===i.length&&(e.isFunction(a.options.nodata)?o=a.options.nodata.call(a,{type:"nodata"},n):!0===a.options.nodata&&l.isRootNode()?o=a.options.strings.nodata:"string"==typeof a.options.nodata&&l.isRootNode()&&(o=a.options.nodata),o&&l.setStatus("nodata",o)),a._triggerNodeEvent("loadChildren",l)})},nodeLoadKeyPath:function(e,t){},nodeRemoveChild:function(n,i){var r,o=n.node,s=e.extend({},n,{node:i}),a=o.children;if(1===a.length)return t(i===a[0],"invalid single child"),this.nodeRemoveChildren(n);this.activeNode&&(i===this.activeNode||this.activeNode.isDescendantOf(i))&&this.activeNode.setActive(!1),this.focusNode&&(i===this.focusNode||this.focusNode.isDescendantOf(i))&&(this.focusNode=null),this.nodeRemoveMarkup(s),this.nodeRemoveChildren(s),t((r=e.inArray(i,a))>=0,"invalid child"),o.triggerModifyChild("remove",i),i.visit(function(e){e.parent=null},!0),this._callHook("treeRegisterNode",this,!1,i),a.splice(r,1)},nodeRemoveChildMarkup:function(t){var n=t.node;n.ul&&(n.isRootNode()?e(n.ul).empty():(e(n.ul).remove(),n.ul=null),n.visit(function(e){e.li=e.ul=null}))},nodeRemoveChildren:function(t){var n=t.tree,i=t.node;i.children&&(this.activeNode&&this.activeNode.isDescendantOf(i)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(i)&&(this.focusNode=null),this.nodeRemoveChildMarkup(t),e.extend({},t),i.triggerModifyChild("remove",null),i.visit(function(e){e.parent=null,n._callHook("treeRegisterNode",n,!1,e)}),i.lazy?i.children=[]:i.children=null,i.isRootNode()||(i.expanded=!1),this.nodeRenderStatus(t))},nodeRemoveMarkup:function(t){var n=t.node;n.li&&(e(n.li).remove(),n.li=null),this.nodeRemoveChildMarkup(t)},nodeRender:function(n,i,r,o,s){var a,l,d,c,u,h,f,p=n.node,g=n.tree,v=n.options,y=v.aria,b=!1,m=p.parent,x=!m,k=p.children,N=null;if(!1!==g._enableUpdate&&(x||m.ul)){if(t(x||m.ul,"parent UL must exist"),x||(p.li&&(i||p.li.parentNode!==p.parent.ul)&&(p.li.parentNode===p.parent.ul?N=p.li.nextSibling:this.debug("Unlinking "+p+" (must be child of 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"+d,a),h=a.nextSibling,a.parentNode.removeChild(a),a=h):a=a.nextSibling;for(a=p.ul.firstChild,c=0,u=k.length-1;c<u;c++)(l=k[c])!==(d=a.ftnode)?p.ul.insertBefore(l.li,d.li):a=a.nextSibling}}else p.ul&&(this.warn("remove child markup for "+p),this.nodeRemoveChildMarkup(n));x||b&&m.ul.insertBefore(p.li,N)}},nodeRenderTitle:function(t,n){var i,r,o,s,a,l,d,u=t.node,h=t.tree,f=t.options,p=f.aria,g=u.getLevel(),b=[];void 0!==n&&(u.title=n),u.span&&!1!==h._enableUpdate&&(a=p&&!1!==u.hasChildren()?" role='button'":"",g<f.minExpandLevel?(u.lazy||(u.expanded=!0),g>1&&b.push("<span "+a+" class='fancytree-expander fancytree-expander-fixed'></span>")):b.push("<span "+a+" class='fancytree-expander'></span>"),(i=v.evalOption("checkbox",u,u,f,!1))&&!u.isStatusNode()&&(a=p?" role='checkbox'":"",r="fancytree-checkbox",("radio"===i||u.parent&&u.parent.radiogroup)&&(r+=" fancytree-radio"),b.push("<span "+a+" class='"+r+"'></span>")),void 0!==u.data.iconClass&&(u.icon?e.error("'iconClass' node option is deprecated since v2.14.0: use 'icon' only instead"):(u.warn("'iconClass' node option is deprecated since v2.14.0: use 'icon' instead"),u.icon=u.data.iconClass)),!1!==(o=v.evalOption("icon",u,u,f,!0))&&(a=p?" role='presentation'":"",d=(d=v.evalOption("iconTooltip",u,u,f,null))?" title='"+c(d)+"'":"","string"==typeof o?y.test(o)?(o="/"===o.charAt(0)?o:(f.imagePath||"")+o,b.push("<img src='"+o+"' class='fancytree-icon'"+d+" alt='' />")):b.push("<span "+a+" class='fancytree-custom-icon "+o+"'"+d+"></span>"):o.text?b.push("<span "+a+" class='fancytree-custom-icon "+(o.addClass||"")+"'"+d+">"+v.escapeHtml(o.text)+"</span>"):o.html?b.push("<span "+a+" class='fancytree-custom-icon "+(o.addClass||"")+"'"+d+">"+o.html+"</span>"):b.push("<span "+a+" class='fancytree-icon'"+d+"></span>")),s="",f.renderTitle&&(s=f.renderTitle.call(h,{type:"renderTitle"},t)||""),s||(!0===(l=v.evalOption("tooltip",u,u,f,null))&&(l=u.title),s="<span class='fancytree-title'"+(l=l?" title='"+c(l)+"'":"")+(f.titlesTabbable?" tabindex='0'":"")+">"+(f.escapeTitles?v.escapeHtml(u.title):u.title)+"</span>"),b.push(s),u.span.innerHTML=b.join(""),this.nodeRenderStatus(t),f.enhanceTitle&&(t.$title=e(">span.fancytree-title",u.span),s=f.enhanceTitle.call(h,{type:"enhanceTitle"},t)||""))},nodeRenderStatus:function(t){var n,i=t.node,r=t.tree,o=t.options,s=i.hasChildren(),a=i.isLastSibling(),l=o.aria,d=o._classNames,c=[],u=i[r.statusClassPropName];u&&!1!==r._enableUpdate&&(l&&(n=e(i.tr||i.li)),c.push(d.node),r.activeNode===i&&c.push(d.active),r.focusNode===i&&c.push(d.focused),i.expanded&&c.push(d.expanded),l&&(!1!==s?n.attr("aria-expanded",Boolean(i.expanded)):n.removeAttr("aria-expanded")),i.folder&&c.push(d.folder),!1!==s&&c.push(d.hasChildren),a&&c.push(d.lastsib),i.lazy&&null==i.children&&c.push(d.lazy),i.partload&&c.push(d.partload),i.partsel&&c.push(d.partsel),v.evalOption("unselectable",i,i,o,!1)&&c.push(d.unselectable),i._isLoading&&c.push(d.loading),i._error&&c.push(d.error),i.statusNodeType&&c.push(d.statusNodePrefix+i.statusNodeType),i.selected?(c.push(d.selected),l&&n.attr("aria-selected",!0)):l&&n.attr("aria-selected",!1),i.extraClasses&&c.push(i.extraClasses),!1===s?c.push(d.combinedExpanderPrefix+"n"+(a?"l":"")):c.push(d.combinedExpanderPrefix+(i.expanded?"e":"c")+(i.lazy&&null==i.children?"d":"")+(a?"l":"")),c.push(d.combinedIconPrefix+(i.expanded?"e":"c")+(i.folder?"f":"")),u.className=c.join(" "),i.li&&e(i.li).toggleClass(d.lastsib,a))},nodeSetActive:function(n,i,r){r=r||{};var o,l=n.node,d=n.tree,c=n.options,u=!0===r.noEvents,h=!0===r.noFocus,f=!1!==r.scrollIntoView;return i=!1!==i,l===d.activeNode===i?s(l):i&&!u&&!1===this._triggerNodeEvent("beforeActivate",l,n.originalEvent)?a(l,["rejected"]):(i?(d.activeNode&&(t(d.activeNode!==l,"node was active (inconsistency)"),o=e.extend({},n,{node:d.activeNode}),d.nodeSetActive(o,!1),t(null===d.activeNode,"deactivate was out of sync?")),c.activeVisible&&l.makeVisible({scrollIntoView:f}),d.activeNode=l,d.nodeRenderStatus(n),h||d.nodeSetFocus(n),u||d._triggerNodeEvent("activate",l,n.originalEvent)):(t(d.activeNode===l,"node was not active (inconsistency)"),d.activeNode=null,this.nodeRenderStatus(n),u||n.tree._triggerNodeEvent("deactivate",l,n.originalEvent)),s(l))},nodeSetExpanded:function(t,n,i){i=i||{};var r,o,l,d,c,u,h=t.node,f=t.tree,p=t.options,g=!0===i.noAnimation,v=!0===i.noEvents;if(n=!1!==n,h.expanded&&n||!h.expanded&&!n)return s(h);if(n&&!h.lazy&&!h.hasChildren())return s(h);if(!n&&h.getLevel()<p.minExpandLevel)return a(h,["locked"]);if(!v&&!1===this._triggerNodeEvent("beforeExpand",h,t.originalEvent))return a(h,["rejected"]);if(g||h.isVisible()||(g=i.noAnimation=!0),o=new e.Deferred,n&&!h.expanded&&p.autoCollapse){c=h.getParentList(!1,!0),u=p.autoCollapse;try{for(p.autoCollapse=!1,l=0,d=c.length;l<d;l++)this._callHook("nodeCollapseSiblings",c[l],i)}finally{p.autoCollapse=u}}return o.done(function(){var e=h.getLastChild();n&&p.autoScroll&&!g&&e?e.scrollIntoView(!0,{topNode:h}).always(function(){v||t.tree._triggerNodeEvent(n?"expand":"collapse",t)}):v||t.tree._triggerNodeEvent(n?"expand":"collapse",t)}),r=function(i){var r,o,s=p._classNames,a=p.toggleEffect;if(h.expanded=n,f._callHook("nodeRender",t,!1,!1,!0),h.ul)if(r="none"!==h.ul.style.display,o=!!h.expanded,r===o)h.warn("nodeSetExpanded: UL.style.display already set");else{if(a&&!g)return e(h.li).addClass(s.animating),void(e.isFunction(e(h.ul)[a.effect])?(f.debug("use jquery."+a.effect+" method"),e(h.ul)[a.effect]({duration:a.duration,always:function(){e(this).removeClass(s.animating),e(h.li).removeClass(s.animating),i()}})):(e(h.ul).stop(!0,!0),e(h.ul).parent().find(".ui-effects-placeholder").remove(),e(h.ul).toggle(a.effect,a.options,a.duration,function(){e(this).removeClass(s.animating),e(h.li).removeClass(s.animating),i()})));h.ul.style.display=h.expanded||!parent?"":"none"}i()},n&&h.lazy&&void 0===h.hasChildren()?h.load().done(function(){o.notifyWith&&o.notifyWith(h,["loaded"]),r(function(){o.resolveWith(h)})}).fail(function(e){r(function(){o.rejectWith(h,["load failed ("+e+")"])})}):r(function(){o.resolveWith(h)}),o.promise()},nodeSetFocus:function(t,n){var i,r=t.tree,o=t.node,s=r.options,a=!!t.originalEvent&&e(t.originalEvent.target).is(":input");if(n=!1!==n,r.focusNode){if(r.focusNode===o&&n)return;i=e.extend({},t,{node:r.focusNode}),r.focusNode=null,this._triggerNodeEvent("blur",i),this._callHook("nodeRenderStatus",i)}n&&(this.hasFocus()||(o.debug("nodeSetFocus: forcing container focus"),this._callHook("treeSetFocus",t,!0,{calledByNode:!0})),o.makeVisible({scrollIntoView:!1}),r.focusNode=o,s.titlesTabbable?a||e(o.span).find(".fancytree-title").focus():0===e(document.activeElement).closest(".fancytree-container").length&&e(r.$container).focus(),s.aria&&e(r.$container).attr("aria-activedescendant",e(o.tr||o.li).uniqueId().attr("id")),this._triggerNodeEvent("focus",t),s.autoScroll&&o.scrollIntoView(),this._callHook("nodeRenderStatus",t))},nodeSetSelected:function(e,t,n){n=n||{};var i=e.node,r=e.tree,o=e.options,s=!0===n.noEvents,a=i.parent;if(t=!1!==t,!v.evalOption("unselectable",i,i,o,!1)){if(i._lastSelectIntent=t,!!i.selected===t&&(3!==o.selectMode||!i.partsel||t))return t;if(!s&&!1===this._triggerNodeEvent("beforeSelect",i,e.originalEvent))return!!i.selected;t&&1===o.selectMode?(r.lastSelectedNode&&r.lastSelectedNode.setSelected(!1),i.selected=t):3!==o.selectMode||!a||a.radiogroup||i.radiogroup?a&&a.radiogroup?i.visitSiblings(function(e){e._changeSelectStatusAttrs(t&&e===i)},!0):i.selected=t:(i.selected=t,i.fixSelection3AfterClick(n)),this.nodeRenderStatus(e),r.lastSelectedNode=t?i:null,s||r._triggerNodeEvent("select",e)}},nodeSetStatus:function(t,n,i,r){function o(t,n){var i=s.children?s.children[0]:null;return i&&i.isStatusNode()?(e.extend(i,t),i.statusNodeType=n,a._callHook("nodeRenderTitle",i)):(s._setChildren([t]),s.children[0].statusNodeType=n,a.render()),s.children[0]}var s=t.node,a=t.tree;switch(n){case"ok":!function(){var e=s.children?s.children[0]:null;if(e&&e.isStatusNode()){try{s.ul&&(s.ul.removeChild(e.li),e.li=null)}catch(e){}1===s.children.length?s.children=[]:s.children.shift()}}(),s._isLoading=!1,s._error=null,s.renderStatus();break;case"loading":s.parent||o({title:a.options.strings.loading+(i?" ("+i+")":""),checkbox:!1,tooltip:r},n),s._isLoading=!0,s._error=null,s.renderStatus();break;case"error":o({title:a.options.strings.loadError+(i?" ("+i+")":""),checkbox:!1,tooltip:r},n),s._isLoading=!1,s._error={message:i,details:r},s.renderStatus();break;case"nodata":o({title:i||a.options.strings.noData,checkbox:!1,tooltip:r},n),s._isLoading=!1,s._error=null,s.renderStatus();break;default:e.error("invalid node status "+n)}},nodeToggleExpanded:function(e){return this.nodeSetExpanded(e,!e.node.expanded)},nodeToggleSelected:function(e){var t=e.node,n=!t.selected;return t.partsel&&!t.selected&&!0===t._lastSelectIntent&&(n=!1,t.selected=!0),t._lastSelectIntent=n,this.nodeSetSelected(e,n)},treeClear:function(e){var t=e.tree;t.activeNode=null,t.focusNode=null,t.$div.find(">ul.fancytree-container").empty(),t.rootNode.children=null},treeCreate:function(e){},treeDestroy:function(e){this.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("fancytree-helper-hidden")},treeInit:function(t){var n=t.tree,i=n.options;n.$container.attr("tabindex",i.tabindex),e.each(T,function(e,t){void 0!==i[t]&&(n.info("Move option "+t+" to tree"),n[t]=i[t],delete i[t])}),i.rtl?n.$container.attr("DIR","RTL").addClass("fancytree-rtl"):n.$container.removeAttr("DIR").removeClass("fancytree-rtl"),i.aria&&(n.$container.attr("role","tree"),1!==i.selectMode&&n.$container.attr("aria-multiselectable",!0)),this.treeLoad(t)},treeLoad:function(n,i){var r,o,s,a=n.tree,l=n.widget.element,c=e.extend({},n,{node:this.rootNode});if(a.rootNode.children&&this.treeClear(n),i=i||this.options.source)"string"==typeof i&&e.error("Not implemented");else switch(o=l.data("type")||"html"){case"html":(s=l.find(">ul:first")).addClass("ui-fancytree-source fancytree-helper-hidden"),i=e.ui.fancytree.parseHtml(s),this.data=e.extend(this.data,d(s));break;case"json":i=e.parseJSON(l.text()),l.contents().filter(function(){return 3===this.nodeType}).remove(),e.isPlainObject(i)&&(t(e.isArray(i.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),r=i,i=i.children,delete r.children,e.each(T,function(e,t){void 0!==r[t]&&(a[t]=r[t],delete r[t])}),e.extend(a.data,r));break;default:e.error("Invalid data-type: "+o)}return this.nodeLoadChildren(c,i).done(function(){a.render(),3===n.options.selectMode&&a.rootNode.fixSelection3FromEndNodes(),a.activeNode&&a.options.activeVisible&&a.activeNode.makeVisible(),a._triggerTreeEvent("init",null,{status:!0})}).fail(function(){a.render(),a._triggerTreeEvent("init",null,{status:!1})})},treeRegisterNode:function(e,t,n){},treeSetFocus:function(t,n,i){var r;(n=!1!==n)!==this.hasFocus()&&(this._hasFocus=n,!n&&this.focusNode?this.focusNode.setFocus(!1):!n||i&&i.calledByNode||e(this.$container).focus(),this.$container.toggleClass("fancytree-treefocus",n),this._triggerTreeEvent(n?"focusTree":"blurTree"),n&&!this.activeNode&&(r=this._lastMousedownNode||this.getFirstChild())&&r.setFocus())},treeSetOption:function(t,n,i){var r=t.tree,o=!0,s=!1,a=!1;switch(n){case"aria":case"checkbox":case"icon":case"minExpandLevel":case"tabindex":s=!0,a=!0;break;case"escapeTitles":case"tooltip":a=!0;break;case"rtl":!1===i?r.$container.removeAttr("DIR").removeClass("fancytree-rtl"):r.$container.attr("DIR","RTL").addClass("fancytree-rtl"),a=!0;break;case"source":o=!1,r._callHook("treeLoad",r,i),a=!0}r.debug("set option "+n+"="+i+" <"+typeof i+">"),o&&(this.widget._super?this.widget._super.call(this.widget,n,i):e.Widget.prototype._setOption.call(this.widget,n,i)),s&&r._callHook("treeCreate",r),a&&r.render(!0,!1)}}),e.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!0,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,escapeTitles:!1,extensions:[],toggleEffect:{effect:"slideToggle",duration:200},generateIds:!1,icon:!0,idPrefix:"ft_",focusOnSelect:!1,keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,nodata:!0,quicksearch:!1,rtl:!1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading...",loadError:"Load error!",moreData:"More...",noData:"No data."},tabindex:"0",titlesTabbable:!1,tooltip:!1,_classNames:{node:"fancytree-node",folder:"fancytree-folder",animating:"fancytree-animating",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partload:"fancytree-partload",partsel:"fancytree-partsel",radio:"fancytree-radio",unselectable:"fancytree-unselectable",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error",statusNodePrefix:"fancytree-statusnode-"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new f(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul:first");var n,r,s,a=this.options,l=a.extensions;this.tree;for(s=0;s<l.length;s++)r=l[s],(n=e.ui.fancytree._extensions[r])||e.error("Could not apply extension '"+r+"' (it is not registered, did you forget to include it?)"),this.tree.options[r]=i({},n.options,this.tree.options[r]),t(void 0===this.tree.ext[r],"Extension name must not exist as Fancytree.ext attribute: '"+r+"'"),this.tree.ext[r]={},o(this.tree,0,n,r),n;void 0!==a.icons&&(!0!==a.icon?e.error("'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'icons' tree option is deprecated since v2.14.0: use 'icon' instead"),a.icon=a.icons)),void 0!==a.iconClass&&(a.icon?e.error("'iconClass' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'iconClass' tree option is deprecated since v2.14.0: use 'icon' instead"),a.icon=a.iconClass)),void 0!==a.tabbable&&(a.tabindex=a.tabbable?"0":"-1",this.tree.warn("'tabbable' tree option is deprecated since v2.17.0: use 'tabindex='"+a.tabindex+"' instead")),this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(e,t){return this.tree._callHook("treeSetOption",this.tree,e,t)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),e.Widget.prototype.destroy.call(this)},_unbind:function(){var t=this.tree._ns;this.element.off(t),this.tree.$container.off(t),e(document).off(t)},_bind:function(){var t=this,n=this.options,i=this.tree,r=i._ns;this._unbind(),i.$container.on("focusin"+r+" focusout"+r,function(t){var n=v.getNode(t),r="focusin"===t.type;if(!r&&n&&e(t.target).is("a"))n.debug("Ignored focusout on embedded <a> element.");else{if(r){if(i._getExpiringValue("focusin"))return void i.debug("Ignored double focusin.");i._setExpiringValue("focusin",!0,50),n||(n=i._getExpiringValue("mouseDownNode"))&&i.debug("Reconstruct mouse target for focusin from recent event.")}n?i._callHook("nodeSetFocus",i._makeHookContext(n,t),r):i.tbody&&e(t.target).parents("table.fancytree-container > thead").length?i.debug("Ignore focus event outside table 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i.targetType=r.type,!1!==s._triggerNodeEvent("dblclick",i,e)&&s._callHook("nodeDblclick",i)}}finally{s.phase=a}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(e){return this.tree.getNodeByKey(e)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),v=e.ui.fancytree,e.extend(e.ui.fancytree,{version:"2.30.2",buildType: "production",debugLevel: 3,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:f,_FancytreeNodeClass:h,jquerySupports:{positionMyOfs:function(t,n,i,r){var o,s,a,l=e.map(e.trim(t).split("."),function(e){return parseInt(e,10)}),d=e.map(Array.prototype.slice.call(arguments,1),function(e){return parseInt(e,10)});for(o=0;o<d.length;o++)if(s=l[o]||0,a=d[o]||0,s!==a)return s>a;return!0}(e.ui.version,1,9)},assert:function(e,n){return t(e,n)},createTree:function(t,n){return e(t).fancytree(n).fancytree("getTree")},debounce:function(e,t,n,i){var r;return 3===arguments.length&&"boolean"!=typeof 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Use .load() instead."),this.load(e)},load:function(e){var t,n,i=this,r=this.isExpanded();return C(this.isLazy(),"load() requires a lazy node"),e||this.isUndefined()?(this.isLoaded()&&this.resetLazy(),!1===(n=this.tree._triggerNodeEvent("lazyLoad",this))?w(this):(C("boolean"!=typeof n,"lazyLoad event must return source in data.result"),t=this.tree._callHook("nodeLoadChildren",this,n),r?(this.expanded=!0,t.always(function(){i.render()})):t.always(function(){i.renderStatus()}),t)):w(this)},makeVisible:function(e){var t,n=this,i=[],r=new k.Deferred,o=this.getParentList(!1,!1),s=o.length,a=!(e&&!0===e.noAnimation),l=!(e&&!1===e.scrollIntoView);for(t=s-1;0<=t;t--)i.push(o[t].setExpanded(!0,e));return k.when.apply(k,i).done(function(){l?n.scrollIntoView(a).done(function(){r.resolve()}):r.resolve()}),r.promise()},moveTo:function(t,e,n){void 0===e||"over"===e?e="child":"firstChild"===e&&(t.children&&t.children.length?(e="before",t=t.children[0]):e="child");var i,r=this.tree,o=this.parent,s="child"===e?t:t.parent;if(this!==t){if(this.parent?s.isDescendantOf(this)&&k.error("Cannot move a node to its own descendant"):k.error("Cannot move system root"),s!==o&&o.triggerModifyChild("remove",this),1===this.parent.children.length){if(this.parent===s)return;this.parent.children=this.parent.lazy?[]:null,this.parent.expanded=!1}else C(0<=(i=k.inArray(this,this.parent.children)),"invalid source parent"),this.parent.children.splice(i,1);if((this.parent=s).hasChildren())switch(e){case"child":s.children.push(this);break;case"before":C(0<=(i=k.inArray(t,s.children)),"invalid target parent"),s.children.splice(i,0,this);break;case"after":C(0<=(i=k.inArray(t,s.children)),"invalid target parent"),s.children.splice(i+1,0,this);break;default:k.error("Invalid mode "+e)}else s.children=[this];n&&t.visit(n,!0),s===o?s.triggerModifyChild("move",this):s.triggerModifyChild("add",this),r!==t.tree&&(this.warn("Cross-tree moveTo is experimental!"),this.visit(function(e){e.tree=t.tree},!0)),r._callHook("treeStructureChanged",r,"moveTo"),o.isDescendantOf(s)||o.render(),s.isDescendantOf(o)||s===o||s.render()}},navigate:function(e,t){var n,i=k.ui.keyCode;switch(e){case"left":case i.LEFT:if(this.expanded)return this.setExpanded(!1);break;case"right":case i.RIGHT:if(!this.expanded&&(this.children||this.lazy))return this.setExpanded()}if(n=this.findRelatedNode(e)){try{n.makeVisible({scrollIntoView:!1})}catch(e){}return!1===t?n.setFocus():n.setActive()}return this.warn("Could not find related node '"+e+"'."),w()},remove:function(){return this.parent.removeChild(this)},removeChild:function(e){return this.tree._callHook("nodeRemoveChild",this,e)},removeChildren:function(){return this.tree._callHook("nodeRemoveChildren",this)},removeClass:function(e){return this.toggleClass(e,!1)},render:function(e,t){return this.tree._callHook("nodeRender",this,e,t)},renderTitle:function(){return this.tree._callHook("nodeRenderTitle",this)},renderStatus:function(){return this.tree._callHook("nodeRenderStatus",this)},replaceWith:function(e){var t,n=this.parent,i=k.inArray(this,n.children),r=this;return C(this.isPagingNode(),"replaceWith() currently requires a paging status node"),(t=this.tree._callHook("nodeLoadChildren",this,e)).done(function(e){var t=r.children;for(o=0;o<t.length;o++)t[o].parent=n;n.children.splice.apply(n.children,[i+1,0].concat(t)),r.children=null,r.remove(),n.render()}).fail(function(){r.setExpanded()}),t},resetLazy:function(){this.removeChildren(),this.expanded=!1,this.lazy=!0,this.children=void 0,this.renderStatus()},scheduleAction:function(e,t){this.tree.timer&&(clearTimeout(this.tree.timer),this.tree.debug("clearTimeout(%o)",this.tree.timer)),this.tree.timer=null;var n=this;switch(e){case"cancel":break;case"expand":this.tree.timer=setTimeout(function(){n.tree.debug("setTimeout: trigger expand"),n.setExpanded(!0)},t);break;case"activate":this.tree.timer=setTimeout(function(){n.tree.debug("setTimeout: trigger activate"),n.setActive(!0)},t);break;default:k.error("Invalid mode "+e)}},scrollIntoView:function(e,t){if(void 0!==t&&((n=t).tree&&void 0!==n.statusNodeType))throw Error("scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. 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i,r,o,s=this;return!n||!0!==e||!1!==(r=n(s))&&"skip"!==r?s.children||s.lazy?(i=new k.Deferred,o=[],s.load().done(function(){for(var e=0,t=s.children.length;e<t;e++){if(!1===(r=s.children[e].visitAndLoad(n,!0,!0))){i.reject();break}"skip"!==r&&o.push(r)}k.when.apply(this,o).then(function(){i.resolve()})}),i.promise()):w():t?r:w()},visitParents:function(e,t){if(t&&!1===e(this))return!1;for(var n=this.parent;n;){if(!1===e(n))return!1;n=n.parent}return!0},visitSiblings:function(e,t){var n,i,r,o=this.parent.children;for(n=0,i=o.length;n<i;n++)if(r=o[n],(t||r!==this)&&!1===e(r))return!1;return!0},warn:function(e){2<=this.tree.options.debugLevel&&(Array.prototype.unshift.call(arguments,this.toString()),d("warn",arguments))}},P.prototype={_makeHookContext:function(e,t,n){var i,r;return void 0!==e.node?(t&&e.originalEvent!==t&&k.error("invalid args"),i=e):e.tree?i={node:e,tree:r=e.tree,widget:r.widget,options:r.widget.options,originalEvent:t,typeInfo:r.types[e.type]||{}}:e.widget?i={node:null,tree:e,widget:e.widget,options:e.widget.options,originalEvent:t}:k.error("invalid args"),n&&k.extend(i,n),i},_callHook:function(e,t,n){var i=this._makeHookContext(t),r=this[e],o=Array.prototype.slice.call(arguments,2);return k.isFunction(r)||k.error("_callHook('"+e+"') is not a function"),o.unshift(i),r.apply(this,o)},_setExpiringValue:function(e,t,n){this._tempCache[e]={value:t,expire:Date.now()+(+n||50)}},_getExpiringValue:function(e){var t=this._tempCache[e];return t&&t.expire>Date.now()?t.value:(delete this._tempCache[e],null)},_requireExtension:function(e,t,n,i){null!=n&&(n=!!n);var r=this._local.name,o=this.options.extensions,s=k.inArray(e,o)<k.inArray(r,o),a=t&&null==this.ext[e],l=!a&&null!=n&&n!==s;return C(r&&r!==e,"invalid or same name '"+r+"' (require yourself?)"),!a&&!l||(i||(a||t?(i="'"+r+"' extension requires 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t="string"==typeof t?(i=new RegExp("^"+t,"i"),function(e){return i.test(e.title)}):t,n=n||e,this.visitRows(o,{start:n,includeSelf:!1}),r||n===e||this.visitRows(o,{start:e,includeSelf:!0}),r},findRelatedNode:function(e,t,n){var i=null,r=k.ui.keyCode;switch(t){case"parent":case r.BACKSPACE:e.parent&&e.parent.parent&&(i=e.parent);break;case"first":case r.HOME:this.visit(function(e){if(e.isVisible())return i=e,!1});break;case"last":case r.END:this.visit(function(e){e.isVisible()&&(i=e)});break;case"left":case r.LEFT:e.expanded?e.setExpanded(!1):e.parent&&e.parent.parent&&(i=e.parent);break;case"right":case r.RIGHT:e.expanded||!e.children&&!e.lazy?e.children&&e.children.length&&(i=e.children[0]):(e.setExpanded(),i=e);break;case"up":case r.UP:this.visitRows(function(e){return i=e,!1},{start:e,reverse:!0,includeSelf:!1});break;case"down":case r.DOWN:this.visitRows(function(e){return i=e,!1},{start:e,includeSelf:!1});break;default:this.tree.warn("Unknown relation '"+t+"'.")}return 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for(i=n.indexOf(s),s=n[i-1];(o||s.expanded)&&s.children&&s.children.length;)s=(n=(r=s).children)[n.length-1];if((o||s.isVisible())&&!1===e(s))return!1}},warn:function(e){2<=this.options.debugLevel&&(Array.prototype.unshift.call(arguments,this.toString()),d("warn",arguments))}},k.extend(P.prototype,{nodeClick:function(e){var t,n,i=e.targetType,r=e.node;if("expander"===i){if(r.isLoading())return void r.debug("Got 2nd click while loading: ignored");this._callHook("nodeToggleExpanded",e)}else if("checkbox"===i)this._callHook("nodeToggleSelected",e),e.options.focusOnSelect&&this._callHook("nodeSetFocus",e,!0);else{if(t=!(n=!1),r.folder)switch(e.options.clickFolderMode){case 2:t=!(n=!0);break;case 3:n=t=!0}t&&(this.nodeSetFocus(e),this._callHook("nodeSetActive",e,!0)),n&&this._callHook("nodeToggleExpanded",e)}},nodeCollapseSiblings:function(e,t){var n,i,r,o=e.node;if(o.parent)for(i=0,r=(n=o.parent.children).length;i<r;i++)n[i]!==o&&n[i].expanded&&this._callHook("nodeSetExpanded",n[i],!1,t)},nodeDblclick:function(e){"title"===e.targetType&&4===e.options.clickFolderMode&&this._callHook("nodeToggleExpanded",e),"title"===e.targetType&&e.originalEvent.preventDefault()},nodeKeydown:function(e){var t,n,i,r=e.originalEvent,o=e.node,s=e.tree,a=e.options,l=r.which,d=r.key||String.fromCharCode(l),c=!!(r.altKey||r.ctrlKey||r.metaKey),u=!b[l]&&!y[l]&&!c,h=k(r.target),f=!0,p=!(r.ctrlKey||!a.autoActivate);if(o||(i=this.getActiveNode()||this.getFirstChild())&&(i.setFocus(),(o=e.node=this.focusNode).debug("Keydown force focus on active node")),a.quicksearch&&u&&!h.is(":input:enabled"))return 500<(n=Date.now())-s.lastQuicksearchTime&&(s.lastQuicksearchTerm=""),s.lastQuicksearchTime=n,s.lastQuicksearchTerm+=d,(t=s.findNextNode(s.lastQuicksearchTerm,s.getActiveNode()))&&t.setActive(),void r.preventDefault();switch(g.eventToString(r)){case"+":case"=":s.nodeSetExpanded(e,!0);break;case"-":s.nodeSetExpanded(e,!1);break;case"space":o.isPagingNode()?s._triggerNodeEvent("clickPaging",e,r):g.evalOption("checkbox",o,o,a,!1)?s.nodeToggleSelected(e):s.nodeSetActive(e,!0);break;case"return":s.nodeSetActive(e,!0);break;case"home":case"end":case"backspace":case"left":case"right":case"up":case"down":o.navigate(r.which,p);break;default:f=!1}f&&r.preventDefault()},nodeLoadChildren:function(o,s){var t,n,e,i,a=o.tree,l=o.node,d=Date.now();return k.isFunction(s)&&(s=s.call(a,{type:"source"},o),C(!k.isFunction(s),"source callback must not return another function")),s.url&&(l._requestId&&l.warn("Recursive load request #"+d+" while #"+l._requestId+" is pending."),t=k.extend({},o.options.ajax,s),l._requestId=d,e=t.debugDelay?(n=t.debugDelay,delete t.debugDelay,k.isArray(n)&&(n=n[0]+Math.random()*(n[1]-n[0])),l.warn("nodeLoadChildren waiting debugDelay "+Math.round(n)+" ms ..."),k.Deferred(function(e){setTimeout(function(){k.ajax(t).done(function(){e.resolveWith(this,arguments)}).fail(function(){e.rejectWith(this,arguments)})},n)})):k.ajax(t),s=new k.Deferred,e.done(function(e,t,n){var i,r;if("json"!==this.dataType&&"jsonp"!==this.dataType||"string"!=typeof e||k.error("Ajax request returned a string (did you get the JSON dataType wrong?)."),l._requestId&&l._requestId>d)s.rejectWith(this,[c]);else{if(o.options.postProcess){try{r=a._triggerNodeEvent("postProcess",o,o.originalEvent,{response:e,error:null,dataType:this.dataType})}catch(e){r={error:e,message:""+e,details:"postProcess failed"}}if(r.error)return i=k.isPlainObject(r.error)?r.error:{message:r.error},i=a._makeHookContext(l,null,i),void s.rejectWith(this,[i]);(k.isArray(r)||k.isPlainObject(r)&&k.isArray(r.children))&&(e=r)}else e&&e.hasOwnProperty("d")&&o.options.enableAspx&&(e="string"==typeof e.d?k.parseJSON(e.d):e.d);s.resolveWith(this,[e])}}).fail(function(e,t,n){var i=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:n,details:e.status+": "+n});s.rejectWith(this,[i])})),k.isFunction(s.then)&&k.isFunction(s.catch)&&(e=s,s=new k.Deferred,e.then(function(e){s.resolve(e)},function(e){s.reject(e)})),k.isFunction(s.promise)?(a.nodeSetStatus(o,"loading"),s.done(function(e){a.nodeSetStatus(o,"ok"),l._requestId=null}).fail(function(e){var t;e!==c?(e.node&&e.error&&e.message?t=e:"[object Object]"===(t=a._makeHookContext(l,null,{error:e,args:Array.prototype.slice.call(arguments),message:e?e.message||e.toString():""})).message&&(t.message=""),l.warn("Load children failed ("+t.message+")",t),!1!==a._triggerNodeEvent("loadError",t,null)&&a.nodeSetStatus(o,"error",t.message,t.details)):l.warn("Ignored response for obsolete load request #"+d+" (expected #"+l._requestId+")")})):o.options.postProcess&&(i=a._triggerNodeEvent("postProcess",o,o.originalEvent,{response:s,error:null,dataType:typeof s}),(k.isArray(i)||k.isPlainObject(i)&&k.isArray(i.children))&&(s=i)),k.when(s).done(function(e){var n,t;k.isPlainObject(e)&&(C(l.isRootNode(),"source may only be an object for root nodes (expecting an array of child objects otherwise)"),C(k.isArray(e.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),e=(n=e).children,delete n.children,k.each(u,function(e,t){void 0!==n[t]&&(a[t]=n[t],delete n[t])}),k.extend(a.data,n)),C(k.isArray(e),"expected array of children"),l._setChildren(e),a.options.nodata&&0===e.length&&(k.isFunction(a.options.nodata)?t=a.options.nodata.call(a,{type:"nodata"},o):!0===a.options.nodata&&l.isRootNode()?t=a.options.strings.nodata:"string"==typeof a.options.nodata&&l.isRootNode()&&(t=a.options.nodata),t&&l.setStatus("nodata",t)),a._triggerNodeEvent("loadChildren",l)})},nodeLoadKeyPath:function(e,t){},nodeRemoveChild:function(e,t){var n,i=e.node,r=k.extend({},e,{node:t}),o=i.children;if(1===o.length)return C(t===o[0],"invalid single child"),this.nodeRemoveChildren(e);this.activeNode&&(t===this.activeNode||this.activeNode.isDescendantOf(t))&&this.activeNode.setActive(!1),this.focusNode&&(t===this.focusNode||this.focusNode.isDescendantOf(t))&&(this.focusNode=null),this.nodeRemoveMarkup(r),this.nodeRemoveChildren(r),C(0<=(n=k.inArray(t,o)),"invalid child"),i.triggerModifyChild("remove",t),t.visit(function(e){e.parent=null},!0),this._callHook("treeRegisterNode",this,!1,t),o.splice(n,1)},nodeRemoveChildMarkup:function(e){var t=e.node;t.ul&&(t.isRootNode()?k(t.ul).empty():(k(t.ul).remove(),t.ul=null),t.visit(function(e){e.li=e.ul=null}))},nodeRemoveChildren:function(e){var t=e.tree,n=e.node;n.children&&(this.activeNode&&this.activeNode.isDescendantOf(n)&&this.activeNode.setActive(!1),this.focusNode&&this.focusNode.isDescendantOf(n)&&(this.focusNode=null),this.nodeRemoveChildMarkup(e),n.triggerModifyChild("remove",null),n.visit(function(e){e.parent=null,t._callHook("treeRegisterNode",t,!1,e)}),n.lazy?n.children=[]:n.children=null,n.isRootNode()||(n.expanded=!1),this.nodeRenderStatus(e))},nodeRemoveMarkup:function(e){var t=e.node;t.li&&(k(t.li).remove(),t.li=null),this.nodeRemoveChildMarkup(e)},nodeRender:function(e,t,n,i,r){var o,s,a,l,d,c,u,h=e.node,f=e.tree,p=e.options,g=p.aria,v=!1,y=h.parent,b=!y,m=h.children,x=null;if(!1!==f._enableUpdate&&(b||y.ul)){if(C(b||y.ul,"parent UL must exist"),b||(h.li&&(t||h.li.parentNode!==h.parent.ul)&&(h.li.parentNode===h.parent.ul?x=h.li.nextSibling:this.debug("Unlinking "+h+" (must be child of "+h.parent+")"),this.nodeRemoveMarkup(e)),h.li?this.nodeRenderStatus(e):(v=!0,h.li=document.createElement("li"),(h.li.ftnode=h).key&&p.generateIds&&(h.li.id=p.idPrefix+h.key),h.span=document.createElement("span"),h.span.className="fancytree-node",g&&!h.tr&&k(h.li).attr("role","treeitem"),h.li.appendChild(h.span),this.nodeRenderTitle(e),p.createNode&&p.createNode.call(f,{type:"createNode"},e)),p.renderNode&&p.renderNode.call(f,{type:"renderNode"},e)),m){if(b||h.expanded||!0===n){for(h.ul||(h.ul=document.createElement("ul"),(!0!==i||r)&&h.expanded||(h.ul.style.display="none"),g&&k(h.ul).attr("role","group"),h.li?h.li.appendChild(h.ul):h.tree.$div.append(h.ul)),l=0,d=m.length;l<d;l++)u=k.extend({},e,{node:m[l]}),this.nodeRender(u,t,n,!1,!0);for(o=h.ul.firstChild;o;)o=(a=o.ftnode)&&a.parent!==h?(h.debug("_fixParent: remove missing "+a,o),c=o.nextSibling,o.parentNode.removeChild(o),c):o.nextSibling;for(o=h.ul.firstChild,l=0,d=m.length-1;l<d;l++)(s=m[l])===(a=o.ftnode)?o=o.nextSibling:h.ul.insertBefore(s.li,a.li)}}else h.ul&&(this.warn("remove child markup for "+h),this.nodeRemoveChildMarkup(e));b||v&&y.ul.insertBefore(h.li,x)}},nodeRenderTitle:function(e,t){var n,i,r,o,s,a,l,d=e.node,c=e.tree,u=e.options,h=u.aria,f=d.getLevel(),p=[];void 0!==t&&(d.title=t),d.span&&!1!==c._enableUpdate&&(s=h&&!1!==d.hasChildren()?" role='button'":"",f<u.minExpandLevel?(d.lazy||(d.expanded=!0),1<f&&p.push("<span "+s+" class='fancytree-expander fancytree-expander-fixed'></span>")):p.push("<span "+s+" class='fancytree-expander'></span>"),(n=g.evalOption("checkbox",d,d,u,!1))&&!d.isStatusNode()&&(s=h?" role='checkbox'":"",i="fancytree-checkbox",("radio"===n||d.parent&&d.parent.radiogroup)&&(i+=" fancytree-radio"),p.push("<span "+s+" class='"+i+"'></span>")),void 0!==d.data.iconClass&&(d.icon?k.error("'iconClass' node option is deprecated since v2.14.0: use 'icon' only instead"):(d.warn("'iconClass' node option is deprecated since v2.14.0: use 'icon' instead"),d.icon=d.data.iconClass)),!1!==(r=g.evalOption("icon",d,d,u,!0))&&(s=h?" role='presentation'":"",l=(l=g.evalOption("iconTooltip",d,d,u,null))?" title='"+L(l)+"'":"","string"==typeof r?v.test(r)?(r="/"===r.charAt(0)?r:(u.imagePath||"")+r,p.push("<img src='"+r+"' class='fancytree-icon'"+l+" alt='' />")):p.push("<span "+s+" class='fancytree-custom-icon "+r+"'"+l+"></span>"):r.text?p.push("<span "+s+" class='fancytree-custom-icon "+(r.addClass||"")+"'"+l+">"+g.escapeHtml(r.text)+"</span>"):r.html?p.push("<span "+s+" class='fancytree-custom-icon "+(r.addClass||"")+"'"+l+">"+r.html+"</span>"):p.push("<span "+s+" class='fancytree-icon'"+l+"></span>")),o="",u.renderTitle&&(o=u.renderTitle.call(c,{type:"renderTitle"},e)||""),o||(!0===(a=g.evalOption("tooltip",d,d,u,null))&&(a=d.title),o="<span class='fancytree-title'"+(a=a?" title='"+L(a)+"'":"")+(u.titlesTabbable?" tabindex='0'":"")+">"+(u.escapeTitles?g.escapeHtml(d.title):d.title)+"</span>"),p.push(o),d.span.innerHTML=p.join(""),this.nodeRenderStatus(e),u.enhanceTitle&&(e.$title=k(">span.fancytree-title",d.span),o=u.enhanceTitle.call(c,{type:"enhanceTitle"},e)||""))},nodeRenderStatus:function(e){var t,n=e.node,i=e.tree,r=e.options,o=n.hasChildren(),s=n.isLastSibling(),a=r.aria,l=r._classNames,d=[],c=n[i.statusClassPropName];c&&!1!==i._enableUpdate&&(a&&(t=k(n.tr||n.li)),d.push(l.node),i.activeNode===n&&d.push(l.active),i.focusNode===n&&d.push(l.focused),n.expanded&&d.push(l.expanded),a&&(!1===o?t.removeAttr("aria-expanded"):t.attr("aria-expanded",Boolean(n.expanded))),n.folder&&d.push(l.folder),!1!==o&&d.push(l.hasChildren),s&&d.push(l.lastsib),n.lazy&&null==n.children&&d.push(l.lazy),n.partload&&d.push(l.partload),n.partsel&&d.push(l.partsel),g.evalOption("unselectable",n,n,r,!1)&&d.push(l.unselectable),n._isLoading&&d.push(l.loading),n._error&&d.push(l.error),n.statusNodeType&&d.push(l.statusNodePrefix+n.statusNodeType),n.selected?(d.push(l.selected),a&&t.attr("aria-selected",!0)):a&&t.attr("aria-selected",!1),n.extraClasses&&d.push(n.extraClasses),!1===o?d.push(l.combinedExpanderPrefix+"n"+(s?"l":"")):d.push(l.combinedExpanderPrefix+(n.expanded?"e":"c")+(n.lazy&&null==n.children?"d":"")+(s?"l":"")),d.push(l.combinedIconPrefix+(n.expanded?"e":"c")+(n.folder?"f":"")),c.className=d.join(" "),n.li&&k(n.li).toggleClass(l.lastsib,s))},nodeSetActive:function(e,t,n){n=n||{};var i,r=e.node,o=e.tree,s=e.options,a=!0===n.noEvents,l=!0===n.noFocus,d=!1!==n.scrollIntoView;return r===o.activeNode===(t=!1!==t)?w(r):t&&!a&&!1===this._triggerNodeEvent("beforeActivate",r,e.originalEvent)?S(r,["rejected"]):(t?(o.activeNode&&(C(o.activeNode!==r,"node was active (inconsistency)"),i=k.extend({},e,{node:o.activeNode}),o.nodeSetActive(i,!1),C(null===o.activeNode,"deactivate was out of sync?")),s.activeVisible&&r.makeVisible({scrollIntoView:d}),o.activeNode=r,o.nodeRenderStatus(e),l||o.nodeSetFocus(e),a||o._triggerNodeEvent("activate",r,e.originalEvent)):(C(o.activeNode===r,"node was not active (inconsistency)"),o.activeNode=null,this.nodeRenderStatus(e),a||e.tree._triggerNodeEvent("deactivate",r,e.originalEvent)),w(r))},nodeSetExpanded:function(i,r,e){e=e||{};var t,n,o,s,a,l,d=i.node,c=i.tree,u=i.options,h=!0===e.noAnimation,f=!0===e.noEvents;if(r=!1!==r,d.expanded&&r||!d.expanded&&!r)return w(d);if(r&&!d.lazy&&!d.hasChildren())return w(d);if(!r&&d.getLevel()<u.minExpandLevel)return S(d,["locked"]);if(!f&&!1===this._triggerNodeEvent("beforeExpand",d,i.originalEvent))return S(d,["rejected"]);if(h||d.isVisible()||(h=e.noAnimation=!0),n=new k.Deferred,r&&!d.expanded&&u.autoCollapse){a=d.getParentList(!1,!0),l=u.autoCollapse;try{for(u.autoCollapse=!1,o=0,s=a.length;o<s;o++)this._callHook("nodeCollapseSiblings",a[o],e)}finally{u.autoCollapse=l}}return n.done(function(){var e=d.getLastChild();r&&u.autoScroll&&!h&&e?e.scrollIntoView(!0,{topNode:d}).always(function(){f||i.tree._triggerNodeEvent(r?"expand":"collapse",i)}):f||i.tree._triggerNodeEvent(r?"expand":"collapse",i)}),t=function(e){var t=u._classNames,n=u.toggleEffect;if(d.expanded=r,c._callHook("treeStructureChanged",i,r?"expand":"collapse"),c._callHook("nodeRender",i,!1,!1,!0),d.ul)if("none"!==d.ul.style.display===!!d.expanded)d.warn("nodeSetExpanded: UL.style.display already set");else{if(n&&!h)return k(d.li).addClass(t.animating),void(k.isFunction(k(d.ul)[n.effect])?(c.debug("use jquery."+n.effect+" method"),k(d.ul)[n.effect]({duration:n.duration,always:function(){k(this).removeClass(t.animating),k(d.li).removeClass(t.animating),e()}})):(k(d.ul).stop(!0,!0),k(d.ul).parent().find(".ui-effects-placeholder").remove(),k(d.ul).toggle(n.effect,n.options,n.duration,function(){k(this).removeClass(t.animating),k(d.li).removeClass(t.animating),e()})));d.ul.style.display=d.expanded||!parent?"":"none"}e()},r&&d.lazy&&void 0===d.hasChildren()?d.load().done(function(){n.notifyWith&&n.notifyWith(d,["loaded"]),t(function(){n.resolveWith(d)})}).fail(function(e){t(function(){n.rejectWith(d,["load failed ("+e+")"])})}):t(function(){n.resolveWith(d)}),n.promise()},nodeSetFocus:function(e,t){var n,i=e.tree,r=e.node,o=i.options,s=!!e.originalEvent&&k(e.originalEvent.target).is(":input");if(t=!1!==t,i.focusNode){if(i.focusNode===r&&t)return;n=k.extend({},e,{node:i.focusNode}),i.focusNode=null,this._triggerNodeEvent("blur",n),this._callHook("nodeRenderStatus",n)}t&&(this.hasFocus()||(r.debug("nodeSetFocus: forcing container focus"),this._callHook("treeSetFocus",e,!0,{calledByNode:!0})),r.makeVisible({scrollIntoView:!1}),i.focusNode=r,o.titlesTabbable&&(s||k(r.span).find(".fancytree-title").focus()),o.aria&&k(i.$container).attr("aria-activedescendant",k(r.tr||r.li).uniqueId().attr("id")),this._triggerNodeEvent("focus",e),document.activeElement===i.$container.get(0)||1<=k(document.activeElement,i.$container).length||k(i.$container).focus(),o.autoScroll&&r.scrollIntoView(),this._callHook("nodeRenderStatus",e))},nodeSetSelected:function(e,t,n){n=n||{};var i=e.node,r=e.tree,o=e.options,s=!0===n.noEvents,a=i.parent;if(t=!1!==t,!g.evalOption("unselectable",i,i,o,!1)){if(i._lastSelectIntent=t,!!i.selected===t&&(3!==o.selectMode||!i.partsel||t))return t;if(!s&&!1===this._triggerNodeEvent("beforeSelect",i,e.originalEvent))return!!i.selected;t&&1===o.selectMode?(r.lastSelectedNode&&r.lastSelectedNode.setSelected(!1),i.selected=t):3!==o.selectMode||!a||a.radiogroup||i.radiogroup?a&&a.radiogroup?i.visitSiblings(function(e){e._changeSelectStatusAttrs(t&&e===i)},!0):i.selected=t:(i.selected=t,i.fixSelection3AfterClick(n)),this.nodeRenderStatus(e),r.lastSelectedNode=t?i:null,s||r._triggerNodeEvent("select",e)}},nodeSetStatus:function(i,e,t,n){var r=i.node,o=i.tree;function s(e,t){var n=r.children?r.children[0]:null;return n&&n.isStatusNode()?(k.extend(n,e),n.statusNodeType=t,o._callHook("nodeRenderTitle",n)):(r._setChildren([e]),o._callHook("treeStructureChanged",i,"setStatusNode"),r.children[0].statusNodeType=t,o.render()),r.children[0]}switch(e){case"ok":!function(){var e=r.children?r.children[0]:null;if(e&&e.isStatusNode()){try{r.ul&&(r.ul.removeChild(e.li),e.li=null)}catch(e){}1===r.children.length?r.children=[]:r.children.shift(),o._callHook("treeStructureChanged",i,"clearStatusNode")}}(),r._isLoading=!1,r._error=null,r.renderStatus();break;case"loading":r.parent||s({title:o.options.strings.loading+(t?" ("+t+")":""),checkbox:!1,tooltip:n},e),r._isLoading=!0,r._error=null,r.renderStatus();break;case"error":s({title:o.options.strings.loadError+(t?" ("+t+")":""),checkbox:!1,tooltip:n},e),r._isLoading=!1,r._error={message:t,details:n},r.renderStatus();break;case"nodata":s({title:t||o.options.strings.noData,checkbox:!1,tooltip:n},e),r._isLoading=!1,r._error=null,r.renderStatus();break;default:k.error("invalid node status "+e)}},nodeToggleExpanded:function(e){return this.nodeSetExpanded(e,!e.node.expanded)},nodeToggleSelected:function(e){var t=e.node,n=!t.selected;return t.partsel&&!t.selected&&!0===t._lastSelectIntent&&(n=!1,t.selected=!0),t._lastSelectIntent=n,this.nodeSetSelected(e,n)},treeClear:function(e){var t=e.tree;t.activeNode=null,t.focusNode=null,t.$div.find(">ul.fancytree-container").empty(),t.rootNode.children=null,t._callHook("treeStructureChanged",e,"clear")},treeCreate:function(e){},treeDestroy:function(e){this.$div.find(">ul.fancytree-container").remove(),this.$source&&this.$source.removeClass("fancytree-helper-hidden")},treeInit:function(e){var n=e.tree,i=n.options;n.$container.attr("tabindex",i.tabindex),k.each(u,function(e,t){void 0!==i[t]&&(n.info("Move option "+t+" to tree"),n[t]=i[t],delete i[t])}),i.checkboxAutoHide&&n.$container.addClass("fancytree-checkbox-auto-hide"),i.rtl?n.$container.attr("DIR","RTL").addClass("fancytree-rtl"):n.$container.removeAttr("DIR").removeClass("fancytree-rtl"),i.aria&&(n.$container.attr("role","tree"),1!==i.selectMode&&n.$container.attr("aria-multiselectable",!0)),this.treeLoad(e)},treeLoad:function(e,t){var n,i,r,o=e.tree,s=e.widget.element,a=k.extend({},e,{node:this.rootNode});if(o.rootNode.children&&this.treeClear(e),t=t||this.options.source)"string"==typeof t&&k.error("Not implemented");else switch(i=s.data("type")||"html"){case"html":(r=s.find(">ul").first()).addClass("ui-fancytree-source fancytree-helper-hidden"),t=k.ui.fancytree.parseHtml(r),this.data=k.extend(this.data,T(r));break;case"json":t=k.parseJSON(s.text()),s.contents().filter(function(){return 3===this.nodeType}).remove(),k.isPlainObject(t)&&(C(k.isArray(t.children),"if an object is passed as source, it must contain a 'children' array (all other properties are added to 'tree.data')"),t=(n=t).children,delete n.children,k.each(u,function(e,t){void 0!==n[t]&&(o[t]=n[t],delete n[t])}),k.extend(o.data,n));break;default:k.error("Invalid data-type: "+i)}return this.nodeLoadChildren(a,t).done(function(){o._callHook("treeStructureChanged",e,"loadChildren"),o.render(),3===e.options.selectMode&&o.rootNode.fixSelection3FromEndNodes(),o.activeNode&&o.options.activeVisible&&o.activeNode.makeVisible(),o._triggerTreeEvent("init",null,{status:!0})}).fail(function(){o.render(),o._triggerTreeEvent("init",null,{status:!1})})},treeRegisterNode:function(e,t,n){e.tree._callHook("treeStructureChanged",e,t?"addNode":"removeNode")},treeSetFocus:function(e,t,n){var i;(t=!1!==t)!==this.hasFocus()&&(!(this._hasFocus=t)&&this.focusNode?this.focusNode.setFocus(!1):!t||n&&n.calledByNode||k(this.$container).focus(),this.$container.toggleClass("fancytree-treefocus",t),this._triggerTreeEvent(t?"focusTree":"blurTree"),t&&!this.activeNode&&(i=this._lastMousedownNode||this.getFirstChild())&&i.setFocus())},treeSetOption:function(e,t,n){var i=e.tree,r=!0,o=!1,s=!1;switch(t){case"aria":case"checkbox":case"icon":case"minExpandLevel":case"tabindex":s=o=!0;break;case"checkboxAutoHide":i.$container.toggleClass("fancytree-checkbox-auto-hide",!!n);break;case"escapeTitles":case"tooltip":s=!0;break;case"rtl":!1===n?i.$container.removeAttr("DIR").removeClass("fancytree-rtl"):i.$container.attr("DIR","RTL").addClass("fancytree-rtl"),s=!0;break;case"source":r=!1,i._callHook("treeLoad",i,n),s=!0}i.debug("set option "+t+"="+n+" <"+typeof n+">"),r&&(this.widget._super?this.widget._super.call(this.widget,t,n):k.Widget.prototype._setOption.call(this.widget,t,n)),o&&i._callHook("treeCreate",i),s&&i.render(!0,!1)},treeStructureChanged:function(e,t){}}),k.widget("ui.fancytree",{options:{activeVisible:!0,ajax:{type:"GET",cache:!1,dataType:"json"},aria:!0,autoActivate:!0,autoCollapse:!1,autoScroll:!1,checkbox:!1,clickFolderMode:4,debugLevel:null,disabled:!1,enableAspx:!0,escapeTitles:!1,extensions:[],toggleEffect:{effect:"slideToggle",duration:200},generateIds:!1,icon:!0,idPrefix:"ft_",focusOnSelect:!1,keyboard:!0,keyPathSeparator:"/",minExpandLevel:1,nodata:!0,quicksearch:!1,rtl:!1,scrollOfs:{top:0,bottom:0},scrollParent:null,selectMode:2,strings:{loading:"Loading...",loadError:"Load error!",moreData:"More...",noData:"No data."},tabindex:"0",titlesTabbable:!1,tooltip:!1,treeId:null,_classNames:{node:"fancytree-node",folder:"fancytree-folder",animating:"fancytree-animating",combinedExpanderPrefix:"fancytree-exp-",combinedIconPrefix:"fancytree-ico-",hasChildren:"fancytree-has-children",active:"fancytree-active",selected:"fancytree-selected",expanded:"fancytree-expanded",lazy:"fancytree-lazy",focused:"fancytree-focused",partload:"fancytree-partload",partsel:"fancytree-partsel",radio:"fancytree-radio",unselectable:"fancytree-unselectable",lastsib:"fancytree-lastsib",loading:"fancytree-loading",error:"fancytree-error",statusNodePrefix:"fancytree-statusnode-"},lazyLoad:null,postProcess:null},_create:function(){this.tree=new P(this),this.$source=this.source||"json"===this.element.data("type")?this.element:this.element.find(">ul").first();var e,t,n,i=this.options,r=i.extensions;this.tree;for(n=0;n<r.length;n++)t=r[n],(e=k.ui.fancytree._extensions[t])||k.error("Could not apply extension '"+t+"' (it is not registered, did you forget to include it?)"),this.tree.options[t]=h({},e.options,this.tree.options[t]),C(void 0===this.tree.ext[t],"Extension name must not exist as Fancytree.ext attribute: '"+t+"'"),this.tree.ext[t]={},p(this.tree,0,e,t),e;void 0!==i.icons&&(!0===i.icon?(this.tree.warn("'icons' tree option is deprecated since v2.14.0: use 'icon' instead"),i.icon=i.icons):k.error("'icons' tree option is deprecated since v2.14.0: use 'icon' only instead")),void 0!==i.iconClass&&(i.icon?k.error("'iconClass' tree option is deprecated since v2.14.0: use 'icon' only instead"):(this.tree.warn("'iconClass' tree option is deprecated since v2.14.0: use 'icon' instead"),i.icon=i.iconClass)),void 0!==i.tabbable&&(i.tabindex=i.tabbable?"0":"-1",this.tree.warn("'tabbable' tree option is deprecated since v2.17.0: use 'tabindex='"+i.tabindex+"' instead")),this.tree._callHook("treeCreate",this.tree)},_init:function(){this.tree._callHook("treeInit",this.tree),this._bind()},_setOption:function(e,t){return this.tree._callHook("treeSetOption",this.tree,e,t)},destroy:function(){this._unbind(),this.tree._callHook("treeDestroy",this.tree),k.Widget.prototype.destroy.call(this)},_unbind:function(){var e=this.tree._ns;this.element.off(e),this.tree.$container.off(e),k(document).off(e)},_bind:function(){var s=this,a=this.options,o=this.tree,e=o._ns;this._unbind(),o.$container.on("focusin"+e+" focusout"+e,function(e){var t=g.getNode(e),n="focusin"===e.type;if(!n&&t&&k(e.target).is("a"))t.debug("Ignored focusout on embedded <a> element.");else{if(n){if(o._getExpiringValue("focusin"))return void o.debug("Ignored double focusin.");o._setExpiringValue("focusin",!0,50),t||(t=o._getExpiringValue("mouseDownNode"))&&o.debug("Reconstruct mouse target for focusin from recent event.")}t?o._callHook("nodeSetFocus",o._makeHookContext(t,e),n):o.tbody&&k(e.target).parents("table.fancytree-container > thead").length?o.debug("Ignore focus event outside table body.",e):o._callHook("treeSetFocus",o,n)}}).on("selectstart"+e,"span.fancytree-title",function(e){e.preventDefault()}).on("keydown"+e,function(e){if(a.disabled||!1===a.keyboard)return!0;var t,n=o.focusNode,i=o._makeHookContext(n||o,e),r=o.phase;try{return o.phase="userEvent","preventNav"===(t=n?o._triggerNodeEvent("keydown",n,e):o._triggerTreeEvent("keydown",e))?t=!0:!1!==t&&(t=o._callHook("nodeKeydown",i)),t}finally{o.phase=r}}).on("mousedown"+e,function(e){var t=g.getEventTarget(e);o._lastMousedownNode=t?t.node:null,o._setExpiringValue("mouseDownNode",o._lastMousedownNode)}).on("click"+e+" dblclick"+e,function(e){if(a.disabled)return!0;var t,n=g.getEventTarget(e),i=n.node,r=s.tree,o=r.phase;if(!i)return!0;t=r._makeHookContext(i,e);try{switch(r.phase="userEvent",e.type){case"click":return t.targetType=n.type,i.isPagingNode()?!0===r._triggerNodeEvent("clickPaging",t,e):!1!==r._triggerNodeEvent("click",t,e)&&r._callHook("nodeClick",t);case"dblclick":return t.targetType=n.type,!1!==r._triggerNodeEvent("dblclick",t,e)&&r._callHook("nodeDblclick",t)}}finally{r.phase=o}})},getActiveNode:function(){return this.tree.activeNode},getNodeByKey:function(e){return this.tree.getNodeByKey(e)},getRootNode:function(){return this.tree.rootNode},getTree:function(){return this.tree}}),g=k.ui.fancytree,k.extend(k.ui.fancytree,{version:"2.31.0",buildType: "production",debugLevel: 3,_nextId:1,_nextNodeKey:1,_extensions:{},_FancytreeClass:P,_FancytreeNodeClass:A,jquerySupports:{positionMyOfs:function(e,t,n,i){var r,o,s,a=k.map(k.trim(e).split("."),function(e){return parseInt(e,10)}),l=k.map(Array.prototype.slice.call(arguments,1),function(e){return parseInt(e,10)});for(r=0;r<l.length;r++)if((o=a[r]||0)!==(s=l[r]||0))return s<o;return!0}(k.ui.version,1,9)},assert:function(e,t){return C(e,t)},createTree:function(e,t){return k(e).fancytree(t).fancytree("getTree")},debounce:function(t,n,i,r){var o;return 3===arguments.length&&"boolean"!=typeof i&&(r=i,i=!1),function(){var e=arguments;r=r||this,i&&!o&&n.apply(r,e),clearTimeout(o),o=setTimeout(function(){i||n.apply(r,e),o=null},t)}},debug:function(e){4<=k.ui.fancytree.debugLevel&&d("log",arguments)},error:function(e){1<=k.ui.fancytree.debugLevel&&d("error",arguments)},escapeHtml:function(e){return(""+e).replace(t,function(e){return i[e]})},fixPositionOptions:function(e){if((e.offset||0<=(""+e.my+e.at).indexOf("%"))&&k.error("expected new position syntax (but '%' is not supported)"),!k.ui.fancytree.jquerySupports.positionMyOfs){var t=/(\w+)([+-]?\d+)?\s+(\w+)([+-]?\d+)?/.exec(e.my),n=/(\w+)([+-]?\d+)?\s+(\w+)([+-]?\d+)?/.exec(e.at),i=(t[2]?+t[2]:0)+(n[2]?+n[2]:0),r=(t[4]?+t[4]:0)+(n[4]?+n[4]:0);e=k.extend({},e,{my:t[1]+" "+t[3],at:n[1]+" "+n[3]}),(i||r)&&(e.offset=i+" "+r)}return e},getEventTarget:function(e){var t,n=e&&e.target?e.target.className:"",i={node:this.getNode(e.target),type:void 0};return/\bfancytree-title\b/.test(n)?i.type="title":/\bfancytree-expander\b/.test(n)?i.type=!1===i.node.hasChildren()?"prefix":"expander":/\bfancytree-checkbox\b/.test(n)?i.type="checkbox":/\bfancytree(-custom)?-icon\b/.test(n)?i.type="icon":/\bfancytree-node\b/.test(n)?i.type="title":e&&e.target&&((t=k(e.target)).is("ul[role=group]")?((i.node&&i.node.tree||g).debug("Ignoring click on outer UL."),i.node=null):t.closest(".fancytree-title").length?i.type="title":t.closest(".fancytree-checkbox").length?i.type="checkbox":t.closest(".fancytree-expander").length&&(i.type="expander")),i},getEventTargetType:function(e){return this.getEventTarget(e).type},getNode:function(e){if(e instanceof A)return e;for(e instanceof k?e=e[0]:void 0!==e.originalEvent&&(e=e.target);e;){if(e.ftnode)return e.ftnode;e=e.parentNode}return null},getTree:function(e){var t,n=e;return e instanceof P?e:(void 0===e&&(e=0),"number"==typeof e?e=k(".fancytree-container").eq(e):"string"==typeof e?(e=k("#ft-id-"+n).eq(0)).length||(e=k(n).eq(0)):e instanceof k?e=e.eq(0):void 0!==e.originalEvent&&(e=k(e.target)),(t=(e=e.closest(":ui-fancytree")).data("ui-fancytree")||e.data("fancytree"))?t.tree:null)},evalOption:function(e,t,n,i,r){var o,s,a=t.tree,l=i[e],d=n[e];return k.isFunction(l)?(o={node:t,tree:a,widget:a.widget,options:a.widget.options,typeInfo:a.types[t.type]||{}},null==(s=l.call(a,{type:e},o))&&(s=d)):s=null==d?l:d,null==s&&(s=r),s},setSpanIcon:function(e,t,n){var i=k(e);"string"==typeof n?i.attr("class",t+" "+n):(n.text?i.text(""+n.text):n.html&&(e.innerHTML=n.html),i.attr("class",t+" "+(n.addClass||"")))},eventToString:function(e){var t=e.which,n=e.type,i=[];return e.altKey&&i.push("alt"),e.ctrlKey&&i.push("ctrl"),e.metaKey&&i.push("meta"),e.shiftKey&&i.push("shift"),"click"===n||"dblclick"===n?i.push(s[e.button]+n):"wheel"===n?i.push(n):r[t]||i.push(y[t]||String.fromCharCode(t).toLowerCase()),i.join("+")},info:function(e){3<=k.ui.fancytree.debugLevel&&d("info",arguments)},keyEventToString:function(e){return this.warn("keyEventToString() is deprecated: use eventToString()"),this.eventToString(e)},overrideMethod:function(e,t,n,i){var r,o=e[t]||k.noop;e[t]=function(){var e=i||this;try{return r=e._super,e._super=o,n.apply(e,arguments)}finally{e._super=r}}},parseHtml:function(s){var a,l,d,c,u,h,f,p,e=s.find(">li"),g=[];return e.each(function(){var e,t,n=k(this),i=n.find(">span",this).first(),r=i.length?null:n.find(">a").first(),o={tooltip:null,data:{}};for(i.length?o.title=i.html():r&&r.length?(o.title=r.html(),o.data.href=r.attr("href"),o.data.target=r.attr("target"),o.tooltip=r.attr("title")):(o.title=n.html(),0<=(u=o.title.search(/<ul/i))&&(o.title=o.title.substring(0,u))),o.title=k.trim(o.title),c=0,h=m.length;c<h;c++)o[m[c]]=void 0;for(a=this.className.split(" "),d=[],c=0,h=a.length;c<h;c++)l=a[c],x[l]?o[l]=!0:d.push(l);if(o.extraClasses=d.join(" "),(f=n.attr("title"))&&(o.tooltip=f),(f=n.attr("id"))&&(o.key=f),n.attr("hideCheckbox")&&(o.checkbox=!1),(e=T(n))&&!k.isEmptyObject(e)){for(t in _)e.hasOwnProperty(t)&&(e[_[t]]=e[t],delete e[t]);for(c=0,h=N.length;c<h;c++)f=N[c],null!=(p=e[f])&&(delete e[f],o[f]=p);k.extend(o.data,e)}(s=n.find(">ul").first()).length?o.children=k.ui.fancytree.parseHtml(s):o.children=o.lazy?void 0:null,g.push(o)}),g},registerExtension:function(e){C(null!=e.name,"extensions must have a `name` property."),C(null!=e.version,"extensions must have a `version` property."),k.ui.fancytree._extensions[e.name]=e},unescapeHtml:function(e){var t=document.createElement("div");return t.innerHTML=e,0===t.childNodes.length?"":t.childNodes[0].nodeValue},warn:function(e){2<=k.ui.fancytree.debugLevel&&d("warn",arguments)}}),k.ui.fancytree}function C(e,t){e||(t=t?": "+t:"",k.error("Fancytree assertion failed"+t))}function d(e,t){var n,i,r=window.console?window.console[e]:null;if(r)try{r.apply(window.console,t)}catch(e){for(i="",n=0;n<t.length;n++)i+=t[n];r(i)}}function h(){var e,t,n,i,r,o=arguments[0]||{},s=1,a=arguments.length;if("object"==typeof o||k.isFunction(o)||(o={}),s===a)throw Error("need at least two args");for(;s<a;s++)if(null!=(e=arguments[s]))for(t in e)if(e.hasOwnProperty(t)){if(n=o[t],o===(i=e[t]))continue;i&&k.isPlainObject(i)?(r=n&&k.isPlainObject(n)?n:{},o[t]=h(r,i)):void 0!==i&&(o[t]=i)}return o}function f(e,i,t,n,r){var o,s,a,l,d;return o=i[e],s=n[e],a=i.ext[r],l=function(){return o.apply(i,arguments)},d=function(e){return o.apply(i,e)},function(){var e=i._local,t=i._super,n=i._superApply;try{return i._local=a,i._super=l,i._superApply=d,s.apply(i,arguments)}finally{i._local=e,i._super=t,i._superApply=n}}}function p(e,t,n,i){for(var r in n)"function"==typeof n[r]?"function"==typeof e[r]?e[r]=f(r,e,0,n,i):"_"===r.charAt(0)?e.ext[i][r]=f(r,e,0,n,i):k.error("Could not override tree."+r+". Use prefix '_' to create tree."+i+"._"+r):"options"!==r&&(e.ext[i][r]=n[r])}function w(e,t){return void 0===e?k.Deferred(function(){this.resolve()}).promise():k.Deferred(function(){this.resolveWith(e,t)}).promise()}function S(e,t){return void 0===e?k.Deferred(function(){this.reject()}).promise():k.Deferred(function(){this.rejectWith(e,t)}).promise()}function E(e,t){return function(){e.resolveWith(t)}}function T(e){var t=k.extend({},e.data()),n=t.json;return delete t.fancytree,delete t.uiFancytree,n&&(delete t.json,t=k.extend(t,n)),t}function L(e){return(""+e).replace(n,function(e){return i[e]})}function H(t){return t=t.toLowerCase(),function(e){return 0<=e.title.toLowerCase().indexOf(t)}}function A(e,t){var n,i,r,o;for(this.parent=e,this.tree=e.tree,this.ul=null,this.li=null,this.statusNodeType=null,this._isLoading=!1,this._error=null,this.data={},n=0,i=N.length;n<i;n++)this[r=N[n]]=t[r];for(r in null==this.unselectableIgnore&&null==this.unselectableStatus||(this.unselectable=!0),t.hideCheckbox&&k.error("'hideCheckbox' node option was removed in v2.23.0: use 'checkbox: false'"),t.data&&k.extend(this.data,t.data),t)a[r]||k.isFunction(t[r])||l[r]||(this.data[r]=t[r]);null==this.key?this.tree.options.defaultKey?(this.key=this.tree.options.defaultKey(this),C(this.key,"defaultKey() must return a unique key")):this.key="_"+g._nextNodeKey++:this.key=""+this.key,t.active&&(C(null===this.tree.activeNode,"only one active node allowed"),this.tree.activeNode=this),t.selected&&(this.tree.lastSelectedNode=this),(o=t.children)?o.length?this._setChildren(o):this.children=this.lazy?[]:null:this.children=null,this.tree._callHook("treeRegisterNode",this.tree,!0,this)}function P(e){this.widget=e,this.$div=e.element,this.options=e.options,this.options&&(void 0!==this.options.lazyload&&k.error("The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."),void 0!==this.options.loaderror&&k.error("The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."),void 0!==this.options.fx&&k.error("The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."),void 0!==this.options.removeNode&&k.error("The 'removeNode' event was replaced by 'modifyChild' since 2.20 (2016-09-10).")),this.ext={},this.types={},this.columns={},this.data=T(this.$div),this._id=""+(this.options.treeId||k.ui.fancytree._nextId++),this._ns=".fancytree-"+this._id,this.activeNode=null,this.focusNode=null,this._hasFocus=null,this._tempCache={},this._lastMousedownNode=null,this._enableUpdate=!0,this.lastSelectedNode=null,this.systemFocusElement=null,this.lastQuicksearchTerm="",this.lastQuicksearchTime=0,this.viewport=null,this.statusClassPropName="span",this.ariaPropName="li",this.nodeContainerAttrName="li",this.$div.find(">ul.fancytree-container").remove();var t,n={tree:this};this.rootNode=new A(n,{title:"root",key:"root_"+this._id,children:null,expanded:!0}),this.rootNode.parent=null,t=k("<ul>",{id:"ft-id-"+this._id,class:"ui-fancytree fancytree-container fancytree-plain"}).appendTo(this.$div),this.$container=t,this.rootNode.ul=t[0],null==this.options.debugLevel&&(this.options.debugLevel=g.debugLevel)}k.ui.fancytree.warn("Fancytree: ignored duplicate include")});
\ No newline at end of file
diff --git a/dist/modules/jquery.fancytree.ariagrid.js b/dist/modules/jquery.fancytree.ariagrid.js
index e6785b0b..7ce81649 100644
--- a/dist/modules/jquery.fancytree.ariagrid.js
+++ b/dist/modules/jquery.fancytree.ariagrid.js
@@ -7,13 +7,13 @@
  *
  * @requires ext-table
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -101,12 +101,17 @@
 
 	/* Find adjacent cell for a given direction. Skip empty cells and consider merged cells */
 	function findNeighbourTd(tree, $target, keyCode) {
-		var $td = $target.closest("td"),
+		var nextNode,
+			node,
+			navMap = { "ctrl+home": "first", "ctrl+end": "last" },
+			$td = $target.closest("td"),
 			$tr = $td.parent(),
 			treeOpts = tree.options,
 			colIdx = getColIdx($tr, $td),
 			$tdNext = null;
 
+		keyCode = navMap[keyCode] || keyCode;
+
 		switch (keyCode) {
 			case "left":
 				$tdNext = treeOpts.rtl ? $td.next() : $td.prev();
@@ -116,30 +121,14 @@
 				break;
 			case "up":
 			case "down":
-				while (true) {
-					$tr = keyCode === "up" ? $tr.prev() : $tr.next();
-					if (!$tr.length) {
-						break;
-					}
-					// Skip hidden rows
-					if ($tr.is(":hidden")) {
-						continue;
-					}
-					// Find adjacent cell in the same column
-					$tdNext = findTdAtColIdx($tr, colIdx);
-					break;
-				}
-				break;
 			case "ctrl+home":
-				$tdNext = findTdAtColIdx($tr.siblings().first(), colIdx);
-				if ($tdNext.is(":hidden")) {
-					$tdNext = findNeighbourTd(tree, $tdNext.parent(), "down");
-				}
-				break;
 			case "ctrl+end":
-				$tdNext = findTdAtColIdx($tr.siblings().last(), colIdx);
-				if ($tdNext.is(":hidden")) {
-					$tdNext = findNeighbourTd(tree, $tdNext.parent(), "up");
+				node = $tr[0].ftnode;
+				nextNode = tree.findRelatedNode(node, keyCode);
+				if (nextNode) {
+					nextNode.makeVisible();
+					nextNode.setActive();
+					$tdNext = findTdAtColIdx($(nextNode.tr), colIdx);
 				}
 				break;
 			case "home":
@@ -168,9 +157,10 @@
 	function activateEmbeddedLink($td) {
 		// $td.find( "a" )[ 0 ].click();  // does not work (always)?
 		// $td.find( "a" ).click();
-		var event = document.createEvent("MouseEvent");
+		var event = document.createEvent("MouseEvent"),
+			a = $td.find("a")[0]; // document.getElementById('nameOfID');
+
 		event = new CustomEvent("click");
-		var a = $td.find("a")[0]; // document.getElementById('nameOfID');
 		a.dispatchEvent(event);
 	}
 
@@ -204,7 +194,7 @@
 		anyNode.debug(
 			"activateCell(" +
 				($prevTd ? $prevTd.text() : "null") +
-				" -> " +
+				") -> " +
 				($td ? $td.text() : "OFF")
 		);
 
@@ -296,7 +286,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "ariagrid",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			// Internal behavior flags
@@ -312,7 +302,11 @@
 				opts = treeOpts.ariagrid;
 
 			// ariagrid requires the table extension to be loaded before itself
-			this._requireExtension("table", true, true);
+			if (tree.ext.grid) {
+				this._requireExtension("grid", true, true);
+			} else {
+				this._requireExtension("table", true, true);
+			}
 			if (!treeOpts.aria) {
 				$.error("ext-ariagrid requires `aria: true`");
 			}
@@ -385,11 +379,23 @@
 				})
 				.on("fancytreefocustree", function(event, data) {
 					// Enforce cell-mode when container gets focus
-					if (opts.cellFocus === "force" && !tree.activeTd) {
+					if (opts.cellFocus === "force" && !tree.$activeTd) {
 						var node = tree.getActiveNode() || tree.getFirstChild();
 						tree.debug("Enforce cell-mode on focusTree event");
 						node.setActive(true, { cell: 0 });
 					}
+				})
+				// .on("fancytreeupdateviewport", function(event, data) {
+				// 	tree.debug(event.type, data);
+				// })
+				.on("fancytreebeforeupdateviewport", function(event, data) {
+					// When scrolling, the TR may be re-used by another node, so the
+					// active cell marker an
+					// tree.debug(event.type, data);
+					if (tree.viewport && tree.$activeTd) {
+						tree.info("Cancel cell-mode due to scroll event.");
+						tree.activateCell(null);
+					}
 				});
 		},
 		nodeClick: function(ctx) {
@@ -397,7 +403,8 @@
 				tree = ctx.tree,
 				node = ctx.node,
 				event = ctx.originalEvent,
-				$td = $(event.target).closest("td");
+				$target = $(event.target),
+				$td = $target.closest("td");
 
 			tree.debug(
 				"nodeClick: node: " +
@@ -415,8 +422,13 @@
 			if (tree.$activeTd) {
 				// If already in cell-mode, activate new cell
 				tree.activateCell($td);
-				if ($(event.target).is(":input")) {
+				if ($target.is(":input")) {
 					return;
+				} else if (
+					$target.is(".fancytree-checkbox") ||
+					$target.is(".fancytree-expander")
+				) {
+					return this._superApply(arguments);
 				}
 				return false;
 			}
@@ -533,7 +545,7 @@
 				$embeddedCheckbox = $activeTd.find(":checkbox:enabled");
 				inputType = "checkbox";
 			}
-			ctx.tree.debug(
+			tree.debug(
 				"nodeKeydown(" +
 					eventString +
 					"), activeTd: '" +
@@ -567,7 +579,9 @@
 						break;
 					} else {
 						// Row mode: switch to cell-mode
-						$td = $(node.tr).find(">td:first");
+						$td = $(node.tr)
+							.find(">td")
+							.first();
 						tree.activateCell($td);
 					}
 					return false; // no default handling
@@ -657,9 +671,9 @@
 						// ENTER in row-mode: Switch from row-mode to cell-mode
 						// TODO: it was also suggested to expand/collapse instead
 						//    https://github.com/w3c/aria-practices/issues/132#issuecomment-407634891
-						$td = $(node.tr).find(
-							">td:nth(" + this.nodeColumnIdx + ")"
-						);
+						$td = $(node.tr)
+							.find(">td")
+							.nth(this.nodeColumnIdx);
 						tree.activateCell($td);
 					}
 					return false; // no default handling
diff --git a/dist/modules/jquery.fancytree.childcounter.js b/dist/modules/jquery.fancytree.childcounter.js
index af511634..273c5187 100644
--- a/dist/modules/jquery.fancytree.childcounter.js
+++ b/dist/modules/jquery.fancytree.childcounter.js
@@ -1,7 +1,7 @@
 // Extending Fancytree
 // ===================
 //
-// See also the [live demo](http://wwwendt.de/tech/fancytree/demo/sample-ext-childcounter.html) of this code.
+// See also the [live demo](https://wwWendt.de/tech/fancytree/demo/sample-ext-childcounter.html) of this code.
 //
 // Every extension should have a comment header containing some information
 // about the author, copyright and licensing. Also a pointer to the latest
@@ -14,13 +14,13 @@
  * Add a child counter bubble to tree nodes.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 // To keep the global namespace clean, we wrap everything in a closure.
@@ -45,10 +45,10 @@
 	"use strict";
 
 	// The [coding guidelines](http://contribute.jquery.org/style-guide/js/)
-	// require jshint compliance.
+	// require jshint /eslint compliance.
 	// But for this sample, we want to allow unused variables for demonstration purpose.
 
-	/*jshint unused:false */
+	/*eslint-disable no-unused-vars */
 
 	// Adding methods
 	// --------------
@@ -119,7 +119,7 @@
 	// Register a Fancytree extension
 	// ------------------------------
 	// A full blown extension, extension is available for all trees and can be
-	// enabled like so (see also the [live demo](http://wwwendt.de/tech/fancytree/demo/sample-ext-childcounter.html)):
+	// enabled like so (see also the [live demo](https://wwWendt.de/tech/fancytree/demo/sample-ext-childcounter.html)):
 	//
 	//    <script src="../src/jquery.fancytree.js"></script>
 	//    <script src="../src/jquery.fancytree.childcounter.js"></script>
@@ -139,7 +139,7 @@
 		// Every extension must be registered by a unique name.
 		name: "childcounter",
 		// Version information should be compliant with [semver](http://semver.org)
-		version: "2.30.2",
+		version: "2.31.0",
 
 		// Extension specific options and their defaults.
 		// This options will be available as `tree.options.childcounter.hideExpanded`
@@ -166,13 +166,13 @@
 		// **Override virtual methods for this extension.**
 		//
 		// Fancytree implements a number of 'hook methods', prefixed by 'node...' or 'tree...'.
-		// with a `ctx` argument (see [EventData](http://www.wwwendt.de/tech/fancytree/doc/jsdoc/global.html#EventData)
+		// with a `ctx` argument (see [EventData](https://wwWendt.de/tech/fancytree/doc/jsdoc/global.html#EventData)
 		// for details) and an extended calling context:<br>
 		// `this`       : the Fancytree instance<br>
 		// `this._local`: the namespace that contains extension attributes and private methods (same as this.ext.EXTNAME)<br>
 		// `this._super`: the virtual function that was overridden (member of previous extension or Fancytree)
 		//
-		// See also the [complete list of available hook functions](http://www.wwwendt.de/tech/fancytree/doc/jsdoc/Fancytree_Hooks.html).
+		// See also the [complete list of available hook functions](https://wwWendt.de/tech/fancytree/doc/jsdoc/Fancytree_Hooks.html).
 
 		/* Init */
 		// `treeInit` is triggered when a tree is initalized. We can set up classes or
diff --git a/dist/modules/jquery.fancytree.clones.js b/dist/modules/jquery.fancytree.clones.js
index 0ebd4c81..802929ff 100644
--- a/dist/modules/jquery.fancytree.clones.js
+++ b/dist/modules/jquery.fancytree.clones.js
@@ -4,13 +4,13 @@
  * Support faster lookup of nodes by key and shared ref-ids.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -66,7 +66,7 @@
 	 * @return {number} 32-bit positive integer hash
 	 */
 	function hashMurmur3(key, asString, seed) {
-		/*jshint bitwise:false */
+		/*eslint-disable no-bitwise */
 		var h1b,
 			k1,
 			remainder = key.length & 3,
@@ -106,11 +106,12 @@
 		k1 = 0;
 
 		switch (remainder) {
-			/*jshint -W086:true */
 			case 3:
 				k1 ^= (key.charCodeAt(i + 2) & 0xff) << 16;
+			// fall through
 			case 2:
 				k1 ^= (key.charCodeAt(i + 1) & 0xff) << 8;
+			// fall through
 			case 1:
 				k1 ^= key.charCodeAt(i) & 0xff;
 
@@ -145,19 +146,26 @@
 			return ("0000000" + (h1 >>> 0).toString(16)).substr(-8);
 		}
 		return h1 >>> 0;
+		/*eslint-enable no-bitwise */
 	}
 
 	/*
- * Return a unique key for node by calculating the hash of the parents refKey-list.
- */
+	 * Return a unique key for node by calculating the hash of the parents refKey-list.
+	 */
 	function calcUniqueKey(node) {
 		var key,
+			h1,
 			path = $.map(node.getParentList(false, true), function(e) {
 				return e.refKey || e.key;
 			});
+
 		path = path.join("/");
-		key = "id_" + hashMurmur3(path, true);
-		// node.debug(path + " -> " + key);
+		// 32-bit has a high probability of collisions, so we pump up to 64-bit
+		// https://security.stackexchange.com/q/209882/207588
+
+		h1 = hashMurmur3(path, true);
+		key = "id_" + h1 + hashMurmur3(h1 + path, true);
+
 		return key;
 	}
 
@@ -360,7 +368,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "clones",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			highlightActiveClones: true, // set 'fancytree-active-clone' on active clones and all peers
@@ -404,12 +412,21 @@
 
 			if (add) {
 				if (keyMap[node.key] != null) {
-					$.error(
-						"clones.treeRegisterNode: node.key already exists: " +
-							node
-					);
+					var other = keyMap[node.key],
+						msg =
+							"clones.treeRegisterNode: duplicate key '" +
+							node.key +
+							"': /" +
+							node.getPath(true) +
+							" => " +
+							other.getPath(true);
+					// Sometimes this exception is not visible in the console,
+					// so we also write it:
+					tree.error(msg);
+					$.error(msg);
 				}
 				keyMap[key] = node;
+
 				if (refKey) {
 					refList = refMap[refKey];
 					if (refList) {
diff --git a/dist/modules/jquery.fancytree.columnview.js b/dist/modules/jquery.fancytree.columnview.js
index d5730dde..e9667f16 100644
--- a/dist/modules/jquery.fancytree.columnview.js
+++ b/dist/modules/jquery.fancytree.columnview.js
@@ -4,13 +4,13 @@
  * Render tree like a Mac Finder's column view.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -39,7 +39,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "columnview",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {},
 		// Overide virtual methods for this extension.
diff --git a/dist/modules/jquery.fancytree.dnd.js b/dist/modules/jquery.fancytree.dnd.js
index f8f54193..992b3e13 100644
--- a/dist/modules/jquery.fancytree.dnd.js
+++ b/dist/modules/jquery.fancytree.dnd.js
@@ -4,13 +4,13 @@
  * Drag-and-drop support (jQuery UI draggable/droppable).
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -46,6 +46,7 @@
 
 	/* Convert number to string and prepend +/-; return empty string for 0.*/
 	function offsetString(n) {
+		// eslint-disable-next-line no-nested-ternary
 		return n === 0 ? "" : n > 0 ? "+" + n : "" + n;
 	}
 
@@ -358,7 +359,7 @@
 
 	$.ui.fancytree.registerExtension({
 		name: "dnd",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			// Make tree nodes accept draggables
@@ -506,21 +507,21 @@
 		},
 
 		/*
-	 * Handles drag'n'drop functionality.
-	 *
-	 * A standard jQuery drag-and-drop process may generate these calls:
-	 *
-	 * start:
-	 *     _onDragEvent("start", sourceNode, null, event, ui, draggable);
-	 * drag:
-	 *     _onDragEvent("leave", prevTargetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("over", targetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("enter", targetNode, sourceNode, event, ui, draggable);
-	 * stop:
-	 *     _onDragEvent("drop", targetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("leave", targetNode, sourceNode, event, ui, draggable);
-	 *     _onDragEvent("stop", sourceNode, null, event, ui, draggable);
-	 */
+		 * Handles drag'n'drop functionality.
+		 *
+		 * A standard jQuery drag-and-drop process may generate these calls:
+		 *
+		 * start:
+		 *     _onDragEvent("start", sourceNode, null, event, ui, draggable);
+		 * drag:
+		 *     _onDragEvent("leave", prevTargetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("over", targetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("enter", targetNode, sourceNode, event, ui, draggable);
+		 * stop:
+		 *     _onDragEvent("drop", targetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("leave", targetNode, sourceNode, event, ui, draggable);
+		 *     _onDragEvent("stop", sourceNode, null, event, ui, draggable);
+		 */
 		_onDragEvent: function(
 			eventName,
 			node,
@@ -549,7 +550,7 @@
 					draggable: draggable,
 				}),
 				res = null,
-				that = this,
+				self = this,
 				$nodeTag = $(node.span);
 
 			if (dnd.smartRevert) {
@@ -598,9 +599,9 @@
 									event.type === "keydown" &&
 									event.which === $.ui.keyCode.ESCAPE
 								) {
-									that.ext.dnd._cancelDrag();
+									self.ext.dnd._cancelDrag();
 								} else if (event.type === "mousedown") {
-									that.ext.dnd._cancelDrag();
+									self.ext.dnd._cancelDrag();
 								}
 							}
 						);
diff --git a/dist/modules/jquery.fancytree.dnd5.js b/dist/modules/jquery.fancytree.dnd5.js
index 98491df5..ccb3f19c 100644
--- a/dist/modules/jquery.fancytree.dnd5.js
+++ b/dist/modules/jquery.fancytree.dnd5.js
@@ -4,13 +4,13 @@
  * Drag-and-drop support (native HTML5).
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 /*
@@ -56,27 +56,45 @@
 		classDropTarget = "fancytree-drop-target",
 		nodeMimeType = "application/x-fancytree-node",
 		$dropMarker = null,
+		$dragImage,
+		$extraHelper,
 		SOURCE_NODE = null,
 		SOURCE_NODE_LIST = null,
 		$sourceList = null,
 		DRAG_ENTER_RESPONSE = null,
+		// SESSION_DATA = null, // plain object passed to events as `data`
+		SUGGESTED_DROP_EFFECT = null,
+		REQUESTED_DROP_EFFECT = null,
+		REQUESTED_EFFECT_ALLOWED = null,
 		LAST_HIT_MODE = null,
 		DRAG_OVER_STAMP = null; // Time when a node entered the 'over' hitmode
 
 	/* */
 	function _clearGlobals() {
+		DRAG_ENTER_RESPONSE = null;
+		DRAG_OVER_STAMP = null;
+		REQUESTED_DROP_EFFECT = null;
+		REQUESTED_EFFECT_ALLOWED = null;
+		SUGGESTED_DROP_EFFECT = null;
 		SOURCE_NODE = null;
 		SOURCE_NODE_LIST = null;
 		if ($sourceList) {
 			$sourceList.removeClass(classDragSource + " " + classDragRemove);
 		}
 		$sourceList = null;
-		DRAG_ENTER_RESPONSE = null;
-		DRAG_OVER_STAMP = null;
+		if ($dropMarker) {
+			$dropMarker.hide();
+		}
+		// Take this badge off of me - I can't use it anymore:
+		if ($extraHelper) {
+			$extraHelper.remove();
+			$extraHelper = null;
+		}
 	}
 
 	/* Convert number to string and prepend +/-; return empty string for 0.*/
 	function offsetString(n) {
+		// eslint-disable-next-line no-nested-ternary
 		return n === 0 ? "" : n > 0 ? "+" + n : "" + n;
 	}
 
@@ -119,6 +137,25 @@
 		return res;
 	}
 
+	/* Convert a dataTransfer.effectAllowed to a canonical form.
+	 * Return false or plain object
+	 * @param {string|boolean} r
+	 * @return {object|false}
+	 */
+	// function normalizeEffectAllowed(r) {
+	// 	if (!r || r === "none") {
+	// 		return false;
+	// 	}
+	// 	var all = r === "all",
+	// 		res = {
+	// 			copy: all || /copy/i.test(r),
+	// 			link: all || /link/i.test(r),
+	// 			move: all || /move/i.test(r),
+	// 		};
+
+	// 	return res;
+	// }
+
 	/* Implement auto scrolling when drag cursor is in top/bottom area of scroll parent. */
 	function autoScroll(tree, event) {
 		var spOfs,
@@ -170,7 +207,193 @@
 		return scrolled;
 	}
 
-	/* Handle dragover event (fired every x ms) and return hitMode. */
+	/* Guess dropEffect from modifier keys.
+	 * Using rules suggested here:
+	 *     https://ux.stackexchange.com/a/83769
+	 * @returns
+	 *     'copy', 'link', 'move', or 'none'
+	 */
+	function evalEffectModifiers(tree, event, effectDefault) {
+		var res = effectDefault;
+
+		if (isMac) {
+			if (event.metaKey && event.altKey) {
+				// Mac: [Control] + [Option]
+				res = "link";
+			} else if (event.ctrlKey) {
+				// Chrome on Mac: [Control]
+				res = "link";
+			} else if (event.metaKey) {
+				// Mac: [Command]
+				res = "move";
+			} else if (event.altKey) {
+				// Mac: [Option]
+				res = "copy";
+			}
+		} else {
+			if (event.ctrlKey) {
+				// Windows: [Ctrl]
+				res = "copy";
+			} else if (event.shiftKey) {
+				// Windows: [Shift]
+				res = "move";
+			} else if (event.altKey) {
+				// Windows: [Alt]
+				res = "link";
+			}
+		}
+		if (res !== SUGGESTED_DROP_EFFECT) {
+			tree.info(
+				"evalEffectModifiers: " +
+					event.type +
+					" - evalEffectModifiers(): " +
+					SUGGESTED_DROP_EFFECT +
+					" -> " +
+					res
+			);
+		}
+		SUGGESTED_DROP_EFFECT = res;
+		// tree.debug("evalEffectModifiers: " + res);
+		return res;
+	}
+	/*
+	 * Check if the previous callback (dragEnter, dragOver, ...) has changed
+	 * the `data` object and apply those settings.
+	 *
+	 * Safari:
+	 *     It seems that `dataTransfer.dropEffect` can only be set on dragStart, and will remain
+	 *     even if the cursor changes when [Alt] or [Ctrl] are pressed (?)
+	 * Using rules suggested here:
+	 *     https://ux.stackexchange.com/a/83769
+	 * @returns
+	 *     'copy', 'link', 'move', or 'none'
+	 */
+	function prepareDropEffectCallback(event, data) {
+		var tree = data.tree,
+			dataTransfer = data.dataTransfer;
+
+		if (event.type === "dragstart") {
+			data.effectAllowed = tree.options.dnd5.effectAllowed;
+			data.dropEffect = tree.options.dnd5.dropEffectDefault;
+		} else {
+			data.effectAllowed = REQUESTED_EFFECT_ALLOWED;
+			data.dropEffect = REQUESTED_DROP_EFFECT;
+		}
+		data.dropEffectSuggested = evalEffectModifiers(
+			tree,
+			event,
+			tree.options.dnd5.dropEffectDefault
+		);
+		data.isMove = data.dropEffect === "move";
+		data.files = dataTransfer.files || [];
+
+		// if (REQUESTED_EFFECT_ALLOWED !== dataTransfer.effectAllowed) {
+		// 	tree.warn(
+		// 		"prepareDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.effectAllowed changed from " +
+		// 			REQUESTED_EFFECT_ALLOWED +
+		// 			" -> " +
+		// 			dataTransfer.effectAllowed
+		// 	);
+		// }
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	tree.warn(
+		// 		"prepareDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.dropEffect changed from requested " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" to " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+	}
+
+	function applyDropEffectCallback(event, data, allowDrop) {
+		var tree = data.tree,
+			dataTransfer = data.dataTransfer;
+
+		if (
+			event.type !== "dragstart" &&
+			REQUESTED_EFFECT_ALLOWED !== data.effectAllowed
+		) {
+			tree.warn(
+				"effectAllowed should only be changed in dragstart event: " +
+					event.type +
+					": data.effectAllowed changed from " +
+					REQUESTED_EFFECT_ALLOWED +
+					" -> " +
+					data.effectAllowed
+			);
+		}
+
+		if (allowDrop === false) {
+			tree.info("applyDropEffectCallback: allowDrop === false");
+			data.effectAllowed = "none";
+			data.dropEffect = "none";
+		}
+		// if (REQUESTED_DROP_EFFECT !== data.dropEffect) {
+		// 	tree.debug(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): data.dropEffect changed from previous " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" to " +
+		// 			data.dropEffect
+		// 	);
+		// }
+
+		data.isMove = data.dropEffect === "move";
+		// data.isMove = data.dropEffectSuggested === "move";
+
+		REQUESTED_EFFECT_ALLOWED = data.effectAllowed;
+		REQUESTED_DROP_EFFECT = data.dropEffect;
+
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	data.tree.info(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): dataTransfer.dropEffect changed from " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			" -> " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+		dataTransfer.effectAllowed = REQUESTED_EFFECT_ALLOWED;
+		dataTransfer.dropEffect = REQUESTED_DROP_EFFECT;
+
+		// tree.debug(
+		// 	"applyDropEffectCallback(" +
+		// 		event.type +
+		// 		"): set " +
+		// 		dataTransfer.dropEffect +
+		// 		"/" +
+		// 		dataTransfer.effectAllowed
+		// );
+		// if (REQUESTED_DROP_EFFECT !== dataTransfer.dropEffect) {
+		// 	data.tree.warn(
+		// 		"applyDropEffectCallback(" +
+		// 			event.type +
+		// 			"): could not set dataTransfer.dropEffect to " +
+		// 			REQUESTED_DROP_EFFECT +
+		// 			": got " +
+		// 			dataTransfer.dropEffect
+		// 	);
+		// }
+		return REQUESTED_DROP_EFFECT;
+	}
+
+	/* Handle dragover event (fired every x ms) on valid drop targets.
+	 *
+	 * - Auto-scroll when cursor is in border regions
+	 * - Apply restrictioan like 'preventVoidMoves'
+	 * - Calculate hit mode
+	 * - Calculate drop effect
+	 * - Trigger dragOver() callback to let user modify hit mode and drop effect
+	 * - Adjust the drop marker accordingly
+	 *
+	 * @returns hitMode
+	 */
 	function handleDragOver(event, data) {
 		// Implement auto-scrolling
 		if (data.options.dnd5.scroll) {
@@ -201,74 +424,69 @@
 			return false;
 		} else if (typeof DRAG_ENTER_RESPONSE === "string") {
 			$.error("assert failed: dragenter returned string");
-			// Use hitMode from onEnter if provided.
-			// hitMode = DRAG_ENTER_RESPONSE;
-		} else {
-			// Calculate hitMode from relative cursor position.
-			nodeOfs = $target.offset();
-			relPosY = (event.pageY - nodeOfs.top) / $target.height();
+		}
+		// Calculate hitMode from relative cursor position.
+		nodeOfs = $target.offset();
+		relPosY = (event.pageY - nodeOfs.top) / $target.height();
 
-			if (DRAG_ENTER_RESPONSE.after && relPosY > 0.75) {
-				hitMode = "after";
+		if (DRAG_ENTER_RESPONSE.after && relPosY > 0.75) {
+			hitMode = "after";
+		} else if (
+			!DRAG_ENTER_RESPONSE.over &&
+			DRAG_ENTER_RESPONSE.after &&
+			relPosY > 0.5
+		) {
+			hitMode = "after";
+		} else if (DRAG_ENTER_RESPONSE.before && relPosY <= 0.25) {
+			hitMode = "before";
+		} else if (
+			!DRAG_ENTER_RESPONSE.over &&
+			DRAG_ENTER_RESPONSE.before &&
+			relPosY <= 0.5
+		) {
+			hitMode = "before";
+		} else if (DRAG_ENTER_RESPONSE.over) {
+			hitMode = "over";
+		}
+		// Prevent no-ops like 'before source node'
+		// TODO: these are no-ops when moving nodes, but not in copy mode
+		if (dndOpts.preventVoidMoves && data.dropEffect === "move") {
+			if (targetNode === sourceNode) {
+				targetNode.debug("Drop over source node prevented.");
+				hitMode = null;
 			} else if (
-				!DRAG_ENTER_RESPONSE.over &&
-				DRAG_ENTER_RESPONSE.after &&
-				relPosY > 0.5
+				hitMode === "before" &&
+				sourceNode &&
+				targetNode === sourceNode.getNextSibling()
 			) {
-				hitMode = "after";
-			} else if (DRAG_ENTER_RESPONSE.before && relPosY <= 0.25) {
-				hitMode = "before";
+				targetNode.debug("Drop after source node prevented.");
+				hitMode = null;
 			} else if (
-				!DRAG_ENTER_RESPONSE.over &&
-				DRAG_ENTER_RESPONSE.before &&
-				relPosY <= 0.5
+				hitMode === "after" &&
+				sourceNode &&
+				targetNode === sourceNode.getPrevSibling()
 			) {
-				hitMode = "before";
-			} else if (DRAG_ENTER_RESPONSE.over) {
-				hitMode = "over";
-			}
-			// Prevent no-ops like 'before source node'
-			// TODO: these are no-ops when moving nodes, but not in copy mode
-			if (dndOpts.preventVoidMoves) {
-				if (targetNode === sourceNode) {
-					targetNode.debug("Drop over source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "before" &&
-					sourceNode &&
-					targetNode === sourceNode.getNextSibling()
-				) {
-					targetNode.debug("Drop after source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "after" &&
-					sourceNode &&
-					targetNode === sourceNode.getPrevSibling()
-				) {
-					targetNode.debug("Drop before source node prevented.");
-					hitMode = null;
-				} else if (
-					hitMode === "over" &&
-					sourceNode &&
-					sourceNode.parent === targetNode &&
-					sourceNode.isLastSibling()
-				) {
-					targetNode.debug(
-						"Drop last child over own parent prevented."
-					);
-					hitMode = null;
-				}
+				targetNode.debug("Drop before source node prevented.");
+				hitMode = null;
+			} else if (
+				hitMode === "over" &&
+				sourceNode &&
+				sourceNode.parent === targetNode &&
+				sourceNode.isLastSibling()
+			) {
+				targetNode.debug("Drop last child over own parent prevented.");
+				hitMode = null;
 			}
 		}
 		// Let callback modify the calculated hitMode
 		data.hitMode = hitMode;
 		if (hitMode && dndOpts.dragOver) {
-			// TODO: http://code.google.com/p/dynatree/source/detail?r=625
+			prepareDropEffectCallback(event, data);
 			dndOpts.dragOver(targetNode, data);
+			var allowDrop = !!hitMode;
+			applyDropEffectCallback(event, data, allowDrop);
 			hitMode = data.hitMode;
 		}
-		// LAST_DROP_EFFECT = data.dataTransfer.dropEffect;
-		// LAST_EFFECT_ALLOWED = data.dataTransfer.effectAllowed;
 		LAST_HIT_MODE = hitMode;
 		//
 		if (hitMode === "after" || hitMode === "before" || hitMode === "over") {
@@ -320,71 +538,492 @@
 		return hitMode;
 	}
 
-	/* Guess dropEffect from modifier keys.
-	 * Safari:
-	 *     It seems that `dataTransfer.dropEffect` can only be set on dragStart, and will remain
-	 *     even if the cursor changes when [Alt] or [Ctrl] are pressed (?)
-	 * Using rules suggested here:
-	 *     https://ux.stackexchange.com/a/83769
-	 * @returns
-	 *     'copy', 'link', 'move', or 'none'
+	/*
+	 * Handle dragstart drag dragend events on the container
 	 */
-	function getDropEffect(event, data) {
-		var dndOpts = data.options.dnd5,
-			res = dndOpts.dropEffectDefault;
-		// dataTransfer = event.dataTransfer || event.originalEvent.dataTransfer,
-
-		// Use callback if any:
-		if (dndOpts.dropEffect) {
-			return dndOpts.dropEffect(event, data);
+	function onDragEvent(event) {
+		var json,
+			tree = this,
+			dndOpts = tree.options.dnd5,
+			node = FT.getNode(event),
+			dataTransfer =
+				event.dataTransfer || event.originalEvent.dataTransfer,
+			data = {
+				tree: tree,
+				node: node,
+				options: tree.options,
+				originalEvent: event.originalEvent,
+				widget: tree.widget,
+				dataTransfer: dataTransfer,
+				useDefaultImage: true,
+				dropEffect: undefined,
+				dropEffectSuggested: undefined,
+				effectAllowed: undefined, // set by dragstart
+				files: undefined, // only for drop events
+				isCancelled: undefined, // set by dragend
+				isMove: undefined,
+			};
+
+		switch (event.type) {
+			case "dragstart":
+				if (!node) {
+					tree.info("Ignored dragstart on a non-node.");
+					return false;
+				}
+				// Store current source node in different formats
+				SOURCE_NODE = node;
+
+				// Also optionally store selected nodes
+				if (dndOpts.multiSource === false) {
+					SOURCE_NODE_LIST = [node];
+				} else if (dndOpts.multiSource === true) {
+					SOURCE_NODE_LIST = tree.getSelectedNodes();
+					if (!node.isSelected()) {
+						SOURCE_NODE_LIST.unshift(node);
+					}
+				} else {
+					SOURCE_NODE_LIST = dndOpts.multiSource(node, data);
+				}
+				// Cache as array of jQuery objects for faster access:
+				$sourceList = $(
+					$.map(SOURCE_NODE_LIST, function(n) {
+						return n.span;
+					})
+				);
+				// Set visual feedback
+				$sourceList.addClass(classDragSource);
+
+				// Set payload
+				// Note:
+				// Transfer data is only accessible on dragstart and drop!
+				// For all other events the formats and kinds in the drag
+				// data store list of items representing dragged data can be
+				// enumerated, but the data itself is unavailable and no new
+				// data can be added.
+				var nodeData = node.toDict();
+				nodeData.treeId = node.tree._id;
+				json = JSON.stringify(nodeData);
+				try {
+					dataTransfer.setData(nodeMimeType, json);
+					dataTransfer.setData("text/html", $(node.span).html());
+					dataTransfer.setData("text/plain", node.title);
+				} catch (ex) {
+					// IE only accepts 'text' type
+					tree.warn(
+						"Could not set data (IE only accepts 'text') - " + ex
+					);
+				}
+				// We always need to set the 'text' type if we want to drag
+				// Because IE 11 only accepts this single type.
+				// If we pass JSON here, IE can can access all node properties,
+				// even when the source lives in another window. (D'n'd inside
+				// the same window will always work.)
+				// The drawback is, that in this case ALL browsers will see
+				// the JSON representation as 'text', so dragging
+				// to a text field will insert the JSON string instead of
+				// the node title.
+				if (dndOpts.setTextTypeJson) {
+					dataTransfer.setData("text", json);
+				} else {
+					dataTransfer.setData("text", node.title);
+				}
+
+				// Set the allowed drag modes (combinations of move, copy, and link)
+				// (effectAllowed can only be set in the dragstart event.)
+				// This can be overridden in the dragStart() callback
+				prepareDropEffectCallback(event, data);
+
+				// Let user cancel or modify above settings
+				// Realize potential changes by previous callback
+				if (dndOpts.dragStart(node, data) === false) {
+					// Cancel dragging
+					// dataTransfer.dropEffect = "none";
+					_clearGlobals();
+					return false;
+				}
+				applyDropEffectCallback(event, data);
+
+				// Unless user set `data.useDefaultImage` to false in dragStart,
+				// generata a default drag image now:
+				$extraHelper = null;
+
+				if (data.useDefaultImage) {
+					// Set the title as drag image (otherwise it would contain the expander)
+					$dragImage = $(node.span).find(".fancytree-title");
+
+					if (SOURCE_NODE_LIST && SOURCE_NODE_LIST.length > 1) {
+						// Add a counter badge to node title if dragging more than one node.
+						// We want this, because the element that is used as drag image
+						// must be *visible* in the DOM, so we cannot create some hidden
+						// custom markup.
+						// See https://kryogenix.org/code/browser/custom-drag-image.html
+						// Also, since IE 11 and Edge don't support setDragImage() alltogether,
+						// it gives som feedback to the user.
+						// The badge will be removed later on drag end.
+						$extraHelper = $(
+							"<span class='fancytree-childcounter'/>"
+						)
+							.text("+" + (SOURCE_NODE_LIST.length - 1))
+							.appendTo($dragImage);
+					}
+					if (dataTransfer.setDragImage) {
+						// IE 11 and Edge do not support this
+						dataTransfer.setDragImage($dragImage[0], -10, -10);
+					}
+				}
+				return true;
+
+			case "drag":
+				// Called every few milliseconds (no matter if the
+				// cursor is over a valid drop target)
+				// data.tree.info("drag", SOURCE_NODE)
+				prepareDropEffectCallback(event, data);
+				dndOpts.dragDrag(node, data);
+				applyDropEffectCallback(event, data);
+
+				$sourceList.toggleClass(classDragRemove, data.isMove);
+				break;
+
+			case "dragend":
+				// Called at the end of a d'n'd process (after drop)
+				// Note caveat: If drop removed the dragged source element,
+				// we may not get this event, since the target does not exist
+				// anymore
+				prepareDropEffectCallback(event, data);
+
+				_clearGlobals();
+
+				data.isCancelled = !LAST_HIT_MODE;
+				dndOpts.dragEnd(node, data, !LAST_HIT_MODE);
+				// applyDropEffectCallback(event, data);
+				break;
 		}
+	}
+	/*
+	 * Handle dragenter dragover dragleave drop events on the container
+	 */
+	function onDropEvent(event) {
+		var json,
+			nodeData,
+			isSourceFtNode,
+			r,
+			res,
+			tree = this,
+			dndOpts = tree.options.dnd5,
+			allowDrop = null,
+			node = FT.getNode(event),
+			dataTransfer =
+				event.dataTransfer || event.originalEvent.dataTransfer,
+			data = {
+				tree: tree,
+				node: node,
+				options: tree.options,
+				originalEvent: event.originalEvent,
+				widget: tree.widget,
+				hitMode: DRAG_ENTER_RESPONSE,
+				dataTransfer: dataTransfer,
+				otherNode: SOURCE_NODE || null,
+				otherNodeList: SOURCE_NODE_LIST || null,
+				otherNodeData: null, // set by drop event
+				useDefaultImage: true,
+				dropEffect: undefined,
+				dropEffectSuggested: undefined,
+				effectAllowed: undefined, // set by dragstart
+				files: null, // list of File objects (may be [])
+				isCancelled: undefined, // set by drop event
+				isMove: undefined,
+			};
 
-		if (isMac) {
-			if (event.metaKey && event.altKey) {
-				// Mac: [Control] + [Option]
-				return "link";
-			} else if (event.metaKey) {
-				// Mac: [Command]
-				return "move";
-			} else if (event.altKey) {
-				// Mac: [Option]
-				return "copy";
-			}
-		} else {
-			if (event.ctrlKey) {
-				// Windows: [Ctrl]
-				return "copy";
-			} else if (event.shiftKey) {
-				// Windows: [Shift]
-				return "move";
-			} else if (event.altKey) {
-				// Windows: [Alt]
-				return "link";
-			}
+		// data.isMove = dropEffect === "move";
+
+		switch (event.type) {
+			case "dragenter":
+				// The dragenter event is fired when a dragged element or
+				// text selection enters a valid drop target.
+
+				DRAG_OVER_STAMP = null;
+				if (!node) {
+					// Sometimes we get dragenter for the container element
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				}
+
+				$(node.span)
+					.addClass(classDropOver)
+					.removeClass(classDropAccept + " " + classDropReject);
+
+				// Data is only readable in the dragstart and drop event,
+				// but we can check for the type:
+				isSourceFtNode =
+					$.inArray(nodeMimeType, dataTransfer.types) >= 0;
+
+				if (dndOpts.preventNonNodes && !isSourceFtNode) {
+					node.debug("Reject dropping a non-node.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventForeignNodes &&
+					(!SOURCE_NODE || SOURCE_NODE.tree !== node.tree)
+				) {
+					node.debug("Reject dropping a foreign node.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventSameParent &&
+					data.otherNode &&
+					data.otherNode.tree === node.tree &&
+					node.parent === data.otherNode.parent
+				) {
+					node.debug("Reject dropping as sibling (same parent).");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				} else if (
+					dndOpts.preventRecursion &&
+					data.otherNode &&
+					data.otherNode.tree === node.tree &&
+					node.isDescendantOf(data.otherNode)
+				) {
+					node.debug("Reject dropping below own ancestor.");
+					DRAG_ENTER_RESPONSE = false;
+					break;
+				}
+				$dropMarker.show();
+
+				// Call dragEnter() to figure out if (and where) dropping is allowed
+				prepareDropEffectCallback(event, data);
+				r = dndOpts.dragEnter(node, data);
+
+				res = normalizeDragEnterResponse(r);
+				DRAG_ENTER_RESPONSE = res;
+
+				allowDrop = res && (res.over || res.before || res.after);
+
+				applyDropEffectCallback(event, data, allowDrop);
+				break;
+
+			case "dragover":
+				if (!node) {
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					break;
+				}
+				// The dragover event is fired when an element or text
+				// selection is being dragged over a valid drop target
+				// (every few hundred milliseconds).
+				// tree.debug(
+				// 	event.type +
+				// 		": dropEffect: " +
+				// 		dataTransfer.dropEffect
+				// );
+				LAST_HIT_MODE = handleDragOver(event, data);
+
+				// The flag controls the preventDefault() below:
+				allowDrop = !!LAST_HIT_MODE;
+
+				if (
+					LAST_HIT_MODE === "over" &&
+					!node.expanded &&
+					node.hasChildren() !== false
+				) {
+					if (!DRAG_OVER_STAMP) {
+						DRAG_OVER_STAMP = Date.now();
+					} else if (
+						dndOpts.autoExpandMS &&
+						Date.now() - DRAG_OVER_STAMP > dndOpts.autoExpandMS &&
+						(!dndOpts.dragExpand ||
+							dndOpts.dragExpand(node, data) !== false)
+					) {
+						node.setExpanded();
+					}
+				} else {
+					DRAG_OVER_STAMP = null;
+				}
+				break;
+
+			case "dragleave":
+				// NOTE: dragleave is fired AFTER the dragenter event of the
+				// FOLLOWING element.
+				if (!node) {
+					tree.debug(
+						"Ignore non-node " +
+							event.type +
+							": " +
+							event.target.tagName +
+							"." +
+							event.target.className
+					);
+					break;
+				}
+				if (!$(node.span).hasClass(classDropOver)) {
+					node.debug("Ignore dragleave (multi).");
+					break;
+				}
+				$(node.span).removeClass(
+					classDropOver +
+						" " +
+						classDropAccept +
+						" " +
+						classDropReject
+				);
+				node.scheduleAction("cancel");
+				dndOpts.dragLeave(node, data);
+				$dropMarker.hide();
+				break;
+
+			case "drop":
+				// Data is only readable in the (dragstart and) drop event:
+
+				if ($.inArray(nodeMimeType, dataTransfer.types) >= 0) {
+					nodeData = dataTransfer.getData(nodeMimeType);
+					tree.info(
+						event.type +
+							": getData('application/x-fancytree-node'): '" +
+							nodeData +
+							"'"
+					);
+				}
+				if (!nodeData) {
+					// 1. Source is not a Fancytree node, or
+					// 2. If the FT mime type was set, but returns '', this
+					//    is probably IE 11 (which only supports 'text')
+					nodeData = dataTransfer.getData("text");
+					tree.info(
+						event.type + ": getData('text'): '" + nodeData + "'"
+					);
+				}
+				if (nodeData) {
+					try {
+						// 'text' type may contain JSON if IE is involved
+						// and setTextTypeJson option was set
+						json = JSON.parse(nodeData);
+						if (json.title !== undefined) {
+							data.otherNodeData = json;
+						}
+					} catch (ex) {
+						// assume 'text' type contains plain text, so `otherNodeData`
+						// should not be set
+					}
+				}
+				tree.debug(
+					event.type +
+						": nodeData: '" +
+						nodeData +
+						"', otherNodeData: ",
+					data.otherNodeData
+				);
+
+				$(node.span).removeClass(
+					classDropOver +
+						" " +
+						classDropAccept +
+						" " +
+						classDropReject
+				);
+
+				// Let user implement the actual drop operation
+				data.hitMode = LAST_HIT_MODE;
+				prepareDropEffectCallback(event, data, !LAST_HIT_MODE);
+				data.isCancelled = !LAST_HIT_MODE;
+
+				var orgSourceElem = SOURCE_NODE && SOURCE_NODE.span,
+					orgSourceTree = SOURCE_NODE && SOURCE_NODE.tree;
+
+				dndOpts.dragDrop(node, data);
+				// applyDropEffectCallback(event, data);
+
+				// Prevent browser's default drop handling, i.e. open as link, ...
+				event.preventDefault();
+
+				if (orgSourceElem && !document.body.contains(orgSourceElem)) {
+					// The drop handler removed the original drag source from
+					// the DOM, so the dragend event will probaly not fire.
+					if (orgSourceTree === tree) {
+						tree.debug(
+							"Drop handler removed source element: generating dragEnd."
+						);
+						dndOpts.dragEnd(SOURCE_NODE, data);
+					} else {
+						tree.warn(
+							"Drop handler removed source element: dragend event may be lost."
+						);
+					}
+				}
+
+				_clearGlobals();
+
+				break;
+		}
+		// Dnd API madness: we must PREVENT default handling to enable dropping
+		if (allowDrop) {
+			event.preventDefault();
+			return false;
 		}
-		// data.tree.debug("getDropEffect: " + res);
-		return res;
 	}
 
+	/** [ext-dnd5] Return a Fancytree instance, from element, index, event, or jQueryObject.
+	 *
+	 * @returns {FancytreeNode[]} List of nodes (empty if no drag operation)
+	 * @example
+	 * $.ui.fancytree.getDragNodeList();
+	 *
+	 * @alias Fancytree_Static#getDragNodeList
+	 * @requires jquery.fancytree.dnd5.js
+	 * @since 2.31
+	 */
+	$.ui.fancytree.getDragNodeList = function() {
+		return SOURCE_NODE_LIST || [];
+	};
+
+	/** [ext-dnd5] Return the FancytreeNode that is currently being dragged.
+	 *
+	 * If multiple nodes are dragged, only the first is returned.
+	 *
+	 * @returns {FancytreeNode | null} dragged nodes or null if no drag operation
+	 * @example
+	 * $.ui.fancytree.getDragNode();
+	 *
+	 * @alias Fancytree_Static#getDragNode
+	 * @requires jquery.fancytree.dnd5.js
+	 * @since 2.31
+	 */
+	$.ui.fancytree.getDragNode = function() {
+		return SOURCE_NODE;
+	};
+
 	/******************************************************************************
 	 *
 	 */
 
 	$.ui.fancytree.registerExtension({
 		name: "dnd5",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autoExpandMS: 1500, // Expand nodes after n milliseconds of hovering
 			dropMarkerInsertOffsetX: -16, // Additional offset for drop-marker with hitMode = "before"/"after"
 			dropMarkerOffsetX: -24, // Absolute position offset for .fancytree-drop-marker relatively to ..fancytree-title (icon/img near a node accepting drop)
-			multiSource: false, // true: Drag multiple (i.e. selected) nodes.
-			dragImage: null, // Callback(node, data) that can be used to call dataTransfer.setDragImage().
-			dropEffect: null, // Callback(node, data) that returns 'copy', 'link', 'move', or 'none'.
-			dropEffectDefault: "move", // Default dropEffect ('copy', 'link', or 'move').
+			multiSource: false, // true: Drag multiple (i.e. selected) nodes. Also a callback() is allowed
+			effectAllowed: "all", // Restrict the possible cursor shapes and modifier operations (can also be set in the dragStart event)
+			// dropEffect: "auto", // 'copy'|'link'|'move'|'auto'(calculate from `effectAllowed`+modifier keys) or callback(node, data) that returns such string.
+			dropEffectDefault: "move", // Default dropEffect ('copy', 'link', or 'move') when no modifier is pressed (overide in dragDrag, dragOver).
 			preventForeignNodes: false, // Prevent dropping nodes from different Fancytrees
 			preventNonNodes: false, // Prevent dropping items other than Fancytree nodes
-			preventRecursiveMoves: true, // Prevent dropping nodes on own descendants
+			preventRecursion: true, // Prevent dropping nodes on own descendants
+			preventSameParent: false, // Prevent dropping nodes under same direct parent
 			preventVoidMoves: true, // Prevent dropping nodes 'before self', etc.
 			scroll: true, // Enable auto-scrolling while dragging
 			scrollSensitivity: 20, // Active top/bottom margin in pixel
@@ -403,14 +1042,11 @@
 		},
 
 		treeInit: function(ctx) {
-			var $dragImage,
-				$extraHelper,
-				$temp,
+			var $temp,
 				tree = ctx.tree,
 				opts = ctx.options,
 				glyph = opts.glyph || null,
-				dndOpts = opts.dnd5,
-				getNode = FT.getNode;
+				dndOpts = opts.dnd5;
 
 			if ($.inArray("dnd", opts.extensions) >= 0) {
 				$.error("Extensions 'dnd' and 'dnd5' are mutually exclusive.");
@@ -420,6 +1056,11 @@
 					"dragStop is not used by ext-dnd5. Use dragEnd instead."
 				);
 			}
+			if (dndOpts.preventRecursiveMoves != null) {
+				$.error(
+					"preventRecursiveMoves was renamed to preventRecursion."
+				);
+			}
 
 			// Implement `opts.createNode` event to add the 'draggable' attribute
 			// #680: this must happen before calling super.treeInit()
@@ -430,7 +1071,11 @@
 				) {
 					// Default processing if any
 					this._super.apply(this, arguments);
-					data.node.span.draggable = true;
+					if (data.node.span) {
+						data.node.span.draggable = true;
+					} else {
+						data.node.warn("Cannot add `draggable`: no span tag");
+					}
 				});
 			}
 			this._superApply(arguments);
@@ -460,449 +1105,24 @@
 						glyph.map._addClass,
 						glyph.map.dropMarker
 					);
-					// $dropMarker.addClass(glyph.map._addClass + " " + glyph.map.dropMarker);
 				}
 			}
 			$dropMarker.toggleClass("fancytree-rtl", !!opts.rtl);
+
 			// Enable drag support if dragStart() is specified:
 			if (dndOpts.dragStart) {
 				// Bind drag event handlers
-				tree.$container.on("dragstart drag dragend", function(event) {
-					var json,
-						node = getNode(event),
-						dataTransfer =
-							event.dataTransfer ||
-							event.originalEvent.dataTransfer,
-						data = {
-							node: node,
-							tree: tree,
-							options: tree.options,
-							originalEvent: event,
-							dataTransfer: dataTransfer,
-							// dropEffect: undefined,  // set by dragend
-							isCancelled: undefined, // set by dragend
-						},
-						dropEffect = getDropEffect(event, data),
-						isMove = dropEffect === "move";
-
-					// console.log(event.type, "dropEffect: " + dropEffect);
-					switch (event.type) {
-						case "dragstart":
-							if (!node) {
-								tree.info("Ignored dragstart on a non-node.");
-								return false;
-							}
-							// Store current source node in different formats
-							SOURCE_NODE = node;
-
-							// Also optionally store selected nodes
-							if (dndOpts.multiSource === false) {
-								SOURCE_NODE_LIST = [node];
-							} else if (dndOpts.multiSource === true) {
-								SOURCE_NODE_LIST = tree.getSelectedNodes();
-								if (!node.isSelected()) {
-									SOURCE_NODE_LIST.unshift(node);
-								}
-							} else {
-								SOURCE_NODE_LIST = dndOpts.multiSource(
-									node,
-									data
-								);
-							}
-							// Cache as array of jQuery objects for faster access:
-							$sourceList = $(
-								$.map(SOURCE_NODE_LIST, function(n) {
-									return n.span;
-								})
-							);
-							// Set visual feedback
-							$sourceList.addClass(classDragSource);
-
-							// Set payload
-							// Note:
-							// Transfer data is only accessible on dragstart and drop!
-							// For all other events the formats and kinds in the drag
-							// data store list of items representing dragged data can be
-							// enumerated, but the data itself is unavailable and no new
-							// data can be added.
-							json = JSON.stringify(node.toDict());
-							try {
-								dataTransfer.setData(nodeMimeType, json);
-								dataTransfer.setData(
-									"text/html",
-									$(node.span).html()
-								);
-								dataTransfer.setData("text/plain", node.title);
-							} catch (ex) {
-								// IE only accepts 'text' type
-								tree.warn(
-									"Could not set data (IE only accepts 'text') - " +
-										ex
-								);
-							}
-							// We always need to set the 'text' type if we want to drag
-							// Because IE 11 only accepts this single type.
-							// If we pass JSON here, IE can can access all node properties,
-							// even when the source lives in another window. (D'n'd inside
-							// the same window will always work.)
-							// The drawback is, that in this case ALL browsers will see
-							// the JSON representation as 'text', so dragging
-							// to a text field will insert the JSON string instead of
-							// the node title.
-							if (dndOpts.setTextTypeJson) {
-								dataTransfer.setData("text", json);
-							} else {
-								dataTransfer.setData("text", node.title);
-							}
-
-							// Set the allowed and current drag mode (move, copy, or link)
-							dataTransfer.effectAllowed = "all"; // "copyMove"
-							// dropEffect = "move";
-
-							$extraHelper = null;
-
-							if (dndOpts.dragImage) {
-								// Let caller set a custom drag image using dataTransfer.setDragImage()
-								// and/or modify visual feedback otherwise.
-								dndOpts.dragImage(node, data);
-							} else {
-								// Set the title as drag image (otherwise it would contain the expander)
-								$dragImage = $(node.span).find(
-									".fancytree-title"
-								);
-
-								if (
-									SOURCE_NODE_LIST &&
-									SOURCE_NODE_LIST.length > 1
-								) {
-									// Add a counter badge to node title if dragging more than one node.
-									// We want this, because the element that is used as drag image
-									// must be *visible* in the DOM, so we cannot create some hidden
-									// custom markup.
-									// See https://kryogenix.org/code/browser/custom-drag-image.html
-									// Also, since IE 11 and Edge don't support setDragImage() alltogether,
-									// it gives som feedback to the user.
-									// The badge will be removed later on drag end.
-									$extraHelper = $(
-										"<span class='fancytree-childcounter'/>"
-									)
-										.text(
-											"+" + (SOURCE_NODE_LIST.length - 1)
-										)
-										.appendTo($dragImage);
-								}
-								if (dataTransfer.setDragImage) {
-									// IE 11 and Edge do not support this
-									dataTransfer.setDragImage(
-										$dragImage[0],
-										-10,
-										-10
-									);
-								}
-							}
-							// Let user modify above settings
-							if (dndOpts.dragStart(node, data) !== false) {
-								return true;
-							}
-							// Clear dragged node to be safe
-							_clearGlobals();
-							return false;
-
-						case "drag":
-							// Called every few miliseconds
-							// data.tree.info("drag", SOURCE_NODE)
-							$sourceList.toggleClass(classDragRemove, isMove);
-							dndOpts.dragDrag(node, data);
-							break;
-
-						case "dragend":
-							_clearGlobals();
-							// data.dropEffect = dropEffect;
-							data.isCancelled = dropEffect === "none";
-							$dropMarker.hide();
-							// Take this badge off of me - I can't use it anymore:
-							if ($extraHelper) {
-								$extraHelper.remove();
-								$extraHelper = null;
-							}
-							dndOpts.dragEnd(node, data);
-							break;
-					}
-				});
+				tree.$container.on(
+					"dragstart drag dragend",
+					onDragEvent.bind(tree)
+				);
 			}
 			// Enable drop support if dragEnter() is specified:
 			if (dndOpts.dragEnter) {
 				// Bind drop event handlers
 				tree.$container.on(
 					"dragenter dragover dragleave drop",
-					function(event) {
-						var json,
-							nodeData,
-							isSourceFtNode,
-							r,
-							res,
-							allowDrop = null,
-							node = getNode(event),
-							dataTransfer =
-								event.dataTransfer ||
-								event.originalEvent.dataTransfer,
-							// dropEffect = getDropEffect(dataTransfer, opts),
-							data = {
-								node: node,
-								tree: tree,
-								options: tree.options,
-								hitMode: DRAG_ENTER_RESPONSE,
-								originalEvent: event,
-								dataTransfer: dataTransfer,
-								otherNode: SOURCE_NODE || null,
-								otherNodeList: SOURCE_NODE_LIST || null,
-								otherNodeData: null, // set by drop event
-								dropEffect: undefined, // set by drop event
-								isCancelled: undefined, // set by drop event
-							};
-
-						switch (event.type) {
-							case "dragenter":
-								// The dragenter event is fired when a dragged element or
-								// text selection enters a valid drop target.
-
-								DRAG_OVER_STAMP = null;
-								if (!node) {
-									// Sometimes we get dragenter for the container element
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								}
-
-								$(node.span)
-									.addClass(classDropOver)
-									.removeClass(
-										classDropAccept + " " + classDropReject
-									);
-
-								// Data is only readable in the dragstart and drop event,
-								// but we can check for the type:
-								isSourceFtNode =
-									$.inArray(
-										nodeMimeType,
-										dataTransfer.types
-									) >= 0;
-
-								if (
-									dndOpts.preventNonNodes &&
-									!isSourceFtNode
-								) {
-									node.debug("Reject dropping a non-node.");
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								} else if (
-									dndOpts.preventForeignNodes &&
-									(!SOURCE_NODE ||
-										SOURCE_NODE.tree !== node.tree)
-								) {
-									node.debug(
-										"Reject dropping a foreign node."
-									);
-									DRAG_ENTER_RESPONSE = false;
-									break;
-								}
-
-								$dropMarker.show();
-
-								// Call dragEnter() to figure out if (and where) dropping is allowed
-								if (
-									dndOpts.preventRecursiveMoves &&
-									node.isDescendantOf(data.otherNode)
-								) {
-									node.debug(
-										"Reject dropping below own ancestor."
-									);
-									res = false;
-								} else {
-									r = dndOpts.dragEnter(node, data);
-									res = normalizeDragEnterResponse(r);
-								}
-								DRAG_ENTER_RESPONSE = res;
-
-								allowDrop =
-									res &&
-									(res.over || res.before || res.after);
-								break;
-
-							case "dragover":
-								if (!node) {
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									break;
-								}
-								// The dragover event is fired when an element or text
-								// selection is being dragged over a valid drop target
-								// (every few hundred milliseconds).
-								// console.log(event.type, "dropEffect: " + dataTransfer.dropEffect)
-								LAST_HIT_MODE = handleDragOver(event, data);
-								allowDrop = !!LAST_HIT_MODE;
-
-								// console.log(event.type, LAST_HIT_MODE, DRAG_OVER_STAMP)
-
-								if (
-									LAST_HIT_MODE === "over" &&
-									!node.expanded &&
-									node.hasChildren() !== false
-								) {
-									if (!DRAG_OVER_STAMP) {
-										DRAG_OVER_STAMP = Date.now();
-									} else if (
-										dndOpts.autoExpandMS &&
-										Date.now() - DRAG_OVER_STAMP >
-											dndOpts.autoExpandMS &&
-										(!dndOpts.dragExpand ||
-											dndOpts.dragExpand(node, data) !==
-												false)
-									) {
-										node.setExpanded();
-									}
-								} else {
-									DRAG_OVER_STAMP = null;
-								}
-								// // NOTE: dragenter is fired BEFORE the dragleave event
-								// // of the previous element!
-								// // https://www.w3.org/Bugs/Public/show_bug.cgi?id=19041
-								// setTimeout(function(){
-								// 	node.info("DELAYED " + event.type, event.target, DRAG_ENTER_RESPONSE);
-								// 	// Auto-expand node (only when 'over' the node, not 'before', or 'after')
-								// 	if( dndOpts.autoExpandMS &&
-								// 		node.hasChildren() !== false && !node.expanded &&
-								// 		(!dndOpts.dragExpand || dndOpts.dragExpand(node, data) !== false)
-								// 		// res.over
-								// 		) {
-								// 		node.scheduleAction("expand", dndOpts.autoExpandMS);
-								// 	}
-								// }, 0);
-
-								break;
-
-							case "dragleave":
-								// NOTE: dragleave is fired AFTER the dragenter event of the
-								// FOLLOWING element.
-								if (!node) {
-									tree.debug(
-										"Ignore non-node " +
-											event.type +
-											": " +
-											event.target.tagName +
-											"." +
-											event.target.className
-									);
-									break;
-								}
-								if (!$(node.span).hasClass(classDropOver)) {
-									node.debug("Ignore dragleave (multi).");
-									break;
-								}
-								$(node.span).removeClass(
-									classDropOver +
-										" " +
-										classDropAccept +
-										" " +
-										classDropReject
-								);
-								node.scheduleAction("cancel");
-								dndOpts.dragLeave(node, data);
-								$dropMarker.hide();
-								break;
-
-							case "drop":
-								// Data is only readable in the (dragstart and) drop event:
-
-								if (
-									$.inArray(
-										nodeMimeType,
-										dataTransfer.types
-									) >= 0
-								) {
-									nodeData = dataTransfer.getData(
-										nodeMimeType
-									);
-									tree.info(
-										event.type +
-											": getData('application/x-fancytree-node'): '" +
-											nodeData +
-											"'"
-									);
-								}
-								if (!nodeData) {
-									// 1. Source is not a Fancytree node, or
-									// 2. If the FT mime type was set, but returns '', this
-									//    is probably IE 11 (which only supports 'text')
-									nodeData = dataTransfer.getData("text");
-									tree.info(
-										event.type +
-											": getData('text'): '" +
-											nodeData +
-											"'"
-									);
-								}
-								if (nodeData) {
-									try {
-										// 'text' type may contain JSON if IE is involved
-										// and setTextTypeJson option was set
-										json = JSON.parse(nodeData);
-										if (json.title !== undefined) {
-											data.otherNodeData = json;
-										}
-									} catch (ex) {
-										// assume 'text' type contains plain text, so `otherNodeData`
-										// should not be set
-									}
-								}
-								tree.debug(
-									event.type +
-										": nodeData: '" +
-										nodeData +
-										"', otherNodeData: ",
-									data.otherNodeData
-								);
-
-								$(node.span).removeClass(
-									classDropOver +
-										" " +
-										classDropAccept +
-										" " +
-										classDropReject
-								);
-								$dropMarker.hide();
-
-								data.hitMode = LAST_HIT_MODE;
-								data.dropEffect = dataTransfer.dropEffect;
-								data.isCancelled = data.dropEffect === "none";
-
-								// Let user implement the actual drop operation
-								dndOpts.dragDrop(node, data);
-
-								// Prevent browser's default drop handling
-								event.preventDefault();
-								_clearGlobals();
-								break;
-						}
-						// Dnd API madness: we must PREVENT default handling to enable dropping
-						if (allowDrop) {
-							event.preventDefault();
-							return false;
-						}
-					}
+					onDropEvent.bind(tree)
 				);
 			}
 		},
diff --git a/dist/modules/jquery.fancytree.edit.js b/dist/modules/jquery.fancytree.edit.js
index dd13474c..9865d09d 100644
--- a/dist/modules/jquery.fancytree.edit.js
+++ b/dist/modules/jquery.fancytree.edit.js
@@ -4,13 +4,13 @@
  * Make node titles editable.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -114,7 +114,7 @@
 			.change(function(event) {
 				$input.addClass("fancytree-edit-dirty");
 			})
-			.keydown(function(event) {
+			.on("keydown", function(event) {
 				switch (event.which) {
 					case $.ui.keyCode.ESCAPE:
 						node.editEnd(false, event);
@@ -302,7 +302,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "edit",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			adjustWidthOfs: 4, // null: don't adjust input size to content
@@ -323,8 +323,21 @@
 		currentNode: null,
 
 		treeInit: function(ctx) {
+			var tree = ctx.tree;
+
 			this._superApply(arguments);
-			this.$container.addClass("fancytree-ext-edit");
+
+			this.$container
+				.addClass("fancytree-ext-edit")
+				.on("fancytreebeforeupdateviewport", function(event, data) {
+					var editNode = tree.isEditing();
+					// When scrolling, the TR may be re-used by another node, so the
+					// active cell marker an
+					if (editNode) {
+						editNode.info("Cancel edit due to scroll event.");
+						editNode.editEnd(false, event);
+					}
+				});
 		},
 		nodeClick: function(ctx) {
 			var eventStr = $.ui.fancytree.eventToString(ctx.originalEvent),
diff --git a/dist/modules/jquery.fancytree.filter.js b/dist/modules/jquery.fancytree.filter.js
index 91bd73e4..6bede572 100644
--- a/dist/modules/jquery.fancytree.filter.js
+++ b/dist/modules/jquery.fancytree.filter.js
@@ -4,13 +4,13 @@
  * Remove or highlight tree nodes, based on a filter.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -36,8 +36,7 @@
 		escapeHtml = $.ui.fancytree.escapeHtml;
 
 	function _escapeRegex(str) {
-		/*jshint regexdash:true */
-		return (str + "").replace(/([.?*+\^\$\[\]\\(){}|-])/g, "\\$1");
+		return (str + "").replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
 	}
 
 	function extractHtmlText(s) {
@@ -59,6 +58,7 @@
 			re,
 			reHighlight,
 			temp,
+			prevEnableUpdate,
 			count = 0,
 			treeOpts = this.options,
 			escapeTitles = treeOpts.escapeTitles,
@@ -126,6 +126,8 @@
 		this.enableFilter = true;
 		this.lastFilterArgs = arguments;
 
+		prevEnableUpdate = this.enableUpdate(false);
+
 		this.$div.addClass("fancytree-ext-filter");
 		if (hideMode) {
 			this.$div.addClass("fancytree-ext-filter-hide");
@@ -208,7 +210,9 @@
 			this.getRootNode().addNode(statusNode).match = true;
 		}
 		// Redraw whole tree
-		this.render();
+		this._callHook("treeStructureChanged", this, "applyFilter");
+		// this.render();
+		this.enableUpdate(prevEnableUpdate);
 		return count;
 	};
 
@@ -234,16 +238,6 @@
 		return this._applyFilterImpl(filter, false, opts);
 	};
 
-	/**
-	 * @deprecated
-	 */
-	$.ui.fancytree._FancytreeClass.prototype.applyFilter = function(filter) {
-		this.warn(
-			"Fancytree.applyFilter() is deprecated since 2.1.0 / 2014-05-29. Use .filterNodes() instead."
-		);
-		return this.filterNodes.apply(this, arguments);
-	};
-
 	/**
 	 * [ext-filter] Dimm or hide whole branches.
 	 *
@@ -270,7 +264,8 @@
 		var $title,
 			statusNode = this.getRootNode()._findDirectChild(KeyNoData),
 			escapeTitles = this.options.escapeTitles,
-			enhanceTitle = this.options.enhanceTitle;
+			enhanceTitle = this.options.enhanceTitle,
+			prevEnableUpdate = this.enableUpdate(false);
 
 		if (statusNode) {
 			statusNode.remove();
@@ -312,7 +307,9 @@
 		this.$div.removeClass(
 			"fancytree-ext-filter fancytree-ext-filter-dimm fancytree-ext-filter-hide"
 		);
-		this.render();
+		this._callHook("treeStructureChanged", this, "clearFilter");
+		// this.render();
+		this.enableUpdate(prevEnableUpdate);
 	};
 
 	/**
@@ -344,7 +341,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "filter",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autoApply: true, // Re-apply last filter if lazy data is loaded
@@ -359,28 +356,29 @@
 			mode: "dimm", // Grayout unmatched nodes (pass "hide" to remove unmatched node instead)
 		},
 		nodeLoadChildren: function(ctx, source) {
+			var tree = ctx.tree;
+
 			return this._superApply(arguments).done(function() {
 				if (
-					ctx.tree.enableFilter &&
-					ctx.tree.lastFilterArgs &&
+					tree.enableFilter &&
+					tree.lastFilterArgs &&
 					ctx.options.filter.autoApply
 				) {
-					ctx.tree._applyFilterImpl.apply(
-						ctx.tree,
-						ctx.tree.lastFilterArgs
-					);
+					tree._applyFilterImpl.apply(tree, tree.lastFilterArgs);
 				}
 			});
 		},
 		nodeSetExpanded: function(ctx, flag, callOpts) {
-			delete ctx.node._filterAutoExpanded;
+			var node = ctx.node;
+
+			delete node._filterAutoExpanded;
 			// Make sure counter badge is displayed again, when node is beeing collapsed
 			if (
 				!flag &&
 				ctx.options.filter.hideExpandedCounter &&
-				ctx.node.$subMatchBadge
+				node.$subMatchBadge
 			) {
-				ctx.node.$subMatchBadge.show();
+				node.$subMatchBadge.show();
 			}
 			return this._superApply(arguments);
 		},
@@ -427,7 +425,7 @@
 				node.$subMatchBadge.hide();
 			}
 			// node.debug("nodeRenderStatus", node.titleWithHighlight, node.title)
-			// #601: also chek for $title.length, because we don't need to render
+			// #601: also check for $title.length, because we don't need to render
 			// if node.span is null (i.e. not rendered)
 			if (node.span && (!node.isEditing || !node.isEditing.call(node))) {
 				if (node.titleWithHighlight) {
diff --git a/dist/modules/jquery.fancytree.fixed.js b/dist/modules/jquery.fancytree.fixed.js
index f5c7d809..5cecefe6 100644
--- a/dist/modules/jquery.fancytree.fixed.js
+++ b/dist/modules/jquery.fancytree.fixed.js
@@ -4,15 +4,17 @@
  * Add fixed colums and headers to ext.table.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
+// Allow to use multiple var statements inside a function
+
 (function(factory) {
 	if (typeof define === "function" && define.amd) {
 		// AMD. Register as an anonymous module.
@@ -268,13 +270,13 @@
 		},
 
 		treeLoad: function(ctx) {
-			var _this = this,
+			var self = this,
 				res = this._superApply(arguments);
 
 			res.done(function() {
-				_this.ext.fixed._adjustLayout.call(_this);
-				if (_this.options.fixed.resizable) {
-					_this.ext.fixed._makeTableResizable();
+				self.ext.fixed._adjustLayout.call(self);
+				if (self.options.fixed.resizable) {
+					self.ext.fixed._makeTableResizable();
 				}
 			});
 			return res;
@@ -320,10 +322,12 @@
 			var node = ctx.node;
 
 			function _removeChild(elem) {
-				var children = elem.children;
+				var i,
+					child,
+					children = elem.children;
 				if (children) {
-					for (var i = 0; i < children.length; i++) {
-						var child = children[i];
+					for (i = 0; i < children.length; i++) {
+						child = children[i];
 						if (child.trRight) {
 							$(child.trRight).remove();
 						}
@@ -390,9 +394,9 @@
 						$brTableBody = $(
 							"div." + fcn.bottomRight + " table tbody"
 						),
-						$prevLeftNode = $blTableBody.find(
-							"tr:eq(" + Math.max(idx + 1, 0) + ")"
-						),
+						$prevLeftNode = $blTableBody
+							.find("tr")
+							.eq(Math.max(idx + 1, 0)),
 						prevRightNode = $prevLeftNode.data(fcn.counterpart);
 
 					$trRight = $trLeft.clone(true);
@@ -449,7 +453,7 @@
 
 		nodeSetExpanded: function(ctx, flag, callOpts) {
 			var res,
-				_this = this,
+				self = this,
 				node = ctx.node,
 				$leftTr = $(node.tr),
 				fcn = this.options.fixed.classNames,
@@ -469,14 +473,14 @@
 						var $trLeft = $(child.tr),
 							$trRight = $trLeft.data(fcn.counterpart);
 
-						_this.ext.fixed._adjustRowHeight($trLeft, $trRight);
+						self.ext.fixed._adjustRowHeight($trLeft, $trRight);
 						if (!child.expanded) {
 							return "skip";
 						}
 					});
 
-					_this.ext.fixed._adjustColWidths();
-					_this.ext.fixed._adjustWrapperLayout();
+					self.ext.fixed._adjustColWidths();
+					self.ext.fixed._adjustWrapperLayout();
 				});
 			} else if (!flag && node.isExpanded()) {
 				node.visit(function(child) {
@@ -489,8 +493,8 @@
 					}
 				});
 
-				_this.ext.fixed._adjustColWidths();
-				_this.ext.fixed._adjustWrapperLayout();
+				self.ext.fixed._adjustColWidths();
+				self.ext.fixed._adjustWrapperLayout();
 				res = this._superApply(arguments);
 			} else {
 				res = this._superApply(arguments);
@@ -559,9 +563,8 @@
 
 				$trTop.find("th").each(function(idx) {
 					var $thTop = $(this),
-						$tdBottom = $trBottom.find("td").eq(idx);
-
-					var thTopWidth = $thTop.width(),
+						$tdBottom = $trBottom.find("td").eq(idx),
+						thTopWidth = $thTop.width(),
 						thTopOuterWidth = $thTop.outerWidth(),
 						tdBottomWidth = $tdBottom.width(),
 						tdBottomOuterWidth = $tdBottom.outerWidth(),
@@ -650,7 +653,7 @@
 		},
 
 		_adjustLayout: function() {
-			var _this = this,
+			var self = this,
 				$wrapper = this.$fixedWrapper,
 				fcn = this.options.fixed.classNames,
 				$topLeftWrapper = $wrapper.find("div." + fcn.topLeft),
@@ -659,20 +662,20 @@
 			// $bottomRightWrapper = $wrapper.find("div." + fcn.bottomRight)
 
 			$topLeftWrapper.find("table tr").each(function(idx) {
-				var $trRight = $topRightWrapper.find("tr:eq(" + idx + ")");
-				_this.ext.fixed._adjustRowHeight($(this), $trRight);
+				var $trRight = $topRightWrapper.find("tr").eq(idx);
+				self.ext.fixed._adjustRowHeight($(this), $trRight);
 			});
 
 			$bottomLeftWrapper
 				.find("table tbody")
 				.find("tr")
 				.each(function(idx) {
-					//			var $trRight = $bottomRightWrapper.find("tbody").find("tr:eq(" + idx + ")");
-					_this.ext.fixed._adjustRowHeight($(this));
+					// var $trRight = $bottomRightWrapper.find("tbody").find("tr").eq(idx);
+					self.ext.fixed._adjustRowHeight($(this));
 				});
 
-			_this.ext.fixed._adjustColWidths.call(this);
-			_this.ext.fixed._adjustWrapperLayout.call(this);
+			self.ext.fixed._adjustColWidths.call(this);
+			self.ext.fixed._adjustWrapperLayout.call(this);
 		},
 
 		//	treeSetFocus: function(ctx, flag) {
diff --git a/dist/modules/jquery.fancytree.glyph.js b/dist/modules/jquery.fancytree.glyph.js
index ef0a46f7..b50349d9 100644
--- a/dist/modules/jquery.fancytree.glyph.js
+++ b/dist/modules/jquery.fancytree.glyph.js
@@ -4,13 +4,13 @@
  * Use glyph-fonts, ligature-fonts, or SVG icons instead of icon sprites.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -170,12 +170,13 @@
 		var map = opts.map,
 			icon = map[type],
 			$span = $(span),
+			$counter = $span.find(".fancytree-childcounter"),
 			setClass = baseClass + " " + (map._addClass || "");
 
 		if (typeof icon === "string") {
 			// #883: remove inner html that may be added by prev. mode
 			span.innerHTML = "";
-			$span.attr("class", setClass + " " + icon);
+			$span.attr("class", setClass + " " + icon).append($counter);
 		} else if (icon) {
 			if (icon.text) {
 				span.textContent = "" + icon.text;
@@ -184,13 +185,15 @@
 			} else {
 				span.innerHTML = "";
 			}
-			$span.attr("class", setClass + " " + (icon.addClass || ""));
+			$span
+				.attr("class", setClass + " " + (icon.addClass || ""))
+				.append($counter);
 		}
 	}
 
 	$.ui.fancytree.registerExtension({
 		name: "glyph",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			preset: null, // 'awesome3', 'awesome4', 'bootstrap3', 'material'
@@ -265,11 +268,12 @@
 						icon
 					);
 				} else {
+					// eslint-disable-next-line no-nested-ternary
 					icon = node.selected
 						? "checkboxSelected"
 						: node.partsel
-							? "checkboxUnknown"
-							: "checkbox";
+						? "checkboxUnknown"
+						: "checkbox";
 					// span.className = "fancytree-checkbox " + map[icon];
 					setIcon(span, "fancytree-checkbox", opts, icon);
 				}
diff --git a/dist/modules/jquery.fancytree.grid.js b/dist/modules/jquery.fancytree.grid.js
new file mode 100644
index 00000000..09302ef1
--- /dev/null
+++ b/dist/modules/jquery.fancytree.grid.js
@@ -0,0 +1,996 @@
+/*!
+ * jquery.fancytree.grid.js
+ *
+ * Render tree as table (aka 'tree grid', 'table tree').
+ * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
+ *
+ * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ *
+ * Released under the MIT license
+ * https://github.com/mar10/fancytree/wiki/LicenseInfo
+ *
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
+ */
+
+(function(factory) {
+	if (typeof define === "function" && define.amd) {
+		// AMD. Register as an anonymous module.
+		define(["jquery", "./jquery.fancytree"], factory);
+	} else if (typeof module === "object" && module.exports) {
+		// Node/CommonJS
+		require("./jquery.fancytree");
+		module.exports = factory(require("jquery"));
+	} else {
+		// Browser globals
+		factory(jQuery);
+	}
+})(function($) {
+	"use strict";
+
+	/******************************************************************************
+	 * Private functions and variables
+	 */
+	var FT = $.ui.fancytree,
+		_assert = FT.assert,
+		SCROLL_MODE = "wheel"; // 'wheel' | 'scroll'
+	// EPS = 1.0;
+
+	/*
+	 * [ext-grid] ...
+	 *
+	 * @alias Fancytree#_addScrollbar
+	 * @requires jquery.fancytree.grid.js
+	 */
+	function _addScrollbar(table) {
+		var sbWidth = 10,
+			$table = $(table),
+			position = $table.position(),
+			// top = $table.find("tbody").position().top,
+
+			$sb = $("<div>", {
+				class: "fancytree-scrollbar",
+				css: {
+					border: "1px solid gray",
+					position: "absolute",
+					top: position.top,
+					left: position.left + $table.width(),
+					width: sbWidth,
+					height: $table.find("tbody").height(),
+				},
+			});
+
+		$table
+			.css({
+				"margin-right": sbWidth,
+			})
+			.after($sb);
+
+		return $sb;
+	}
+
+	/*
+	 * [ext-grid] Invalidate renumber status, i.e. trigger renumber next time.
+	 *
+	 * @alias Fancytree#_renumberReset
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype._renumberReset = function() {
+		// this.debug("_renumberReset()");
+		this.visibleNodeList = null;
+	};
+
+	/*
+	 * [ext-grid] Adjust the start value if the content would be outside otherwise.
+	 *
+	 * @alias Fancytree#_fixStart
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype._fixStart = function(
+		start,
+		apply
+	) {
+		var vp = this.viewport,
+			nodeList = this.visibleNodeList;
+
+		start = start == null ? vp.start : start;
+		// this.debug("_fixStart(" + start + ", " + !!apply + ")");
+		var orgStart = start;
+		// Don't scroll down below bottom node
+		if (nodeList) {
+			start = Math.min(start, this.visibleNodeList.length - vp.count);
+			start = Math.max(start, 0, start);
+			if (start !== orgStart) {
+				this.debug("Adjust start " + orgStart + " => " + start);
+				if (apply) {
+					vp.start = start;
+				}
+			}
+		}
+		return start;
+	};
+
+	/*
+	 * [ext-grid] ...
+	 *
+	 * @alias Fancytree#_shiftViewport
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype._shiftViewport = function(
+		mode,
+		ofs
+	) {
+		this.debug("_shiftViewport", mode, ofs);
+		switch (mode) {
+			case "vscroll":
+				if (ofs) {
+					this.setViewport({
+						start: this.viewport.start + (ofs > 0 ? 1 : -1),
+					});
+				}
+				break;
+
+			default:
+				throw Error("Invalid  mode: " + mode);
+		}
+	};
+
+	/**
+	 * [ext-grid] Return true if viewport cannot be scrolled down any further.
+	 *
+	 * @alias Fancytree#isViewportBottom
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype.isViewportBottom = function() {
+		return (
+			this.viewport.start + this.viewport.count >=
+			this.visibleNodeList.length
+		);
+	};
+
+	/**
+	 * [ext-grid] Define a subset of rows/columns to display and redraw.
+	 *
+	 * @param {object | boolean} options viewport boundaries and status.
+	 *
+	 * @alias Fancytree#setViewport
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype.setViewport = function(opts) {
+		if (typeof opts === "boolean") {
+			this.debug("setViewport( " + opts + ")");
+			return this.setViewport({ enabled: opts });
+		}
+		opts = opts || {};
+		var i,
+			count,
+			start,
+			newRow,
+			redrawReason = "",
+			vp = this.viewport,
+			diffVp = { start: 0, count: 0, enabled: null, force: null },
+			newVp = $.extend({}, vp),
+			trList = this.tbody.children,
+			trCount = trList.length;
+
+		// Sanitize viewport settings and check if we need to redraw
+		this.debug("setViewport(" + opts.start + ", +" + opts.count + ")");
+		if (opts.force) {
+			redrawReason += "force";
+			diffVp.force = true;
+		}
+
+		opts.enabled = opts.enabled !== false; // default to true
+		if (vp.enabled !== opts.enabled) {
+			redrawReason += "enable";
+			newVp.enabled = diffVp.enabled = opts.enabled;
+		}
+
+		start = opts.start == null ? vp.start : Math.max(0, +opts.start);
+		// Adjust start value to assure the current content is inside vp
+		start = this._fixStart(start, false);
+
+		if (vp.start !== +start) {
+			redrawReason += "start";
+			newVp.start = start;
+			diffVp.start = start - vp.start;
+		}
+
+		count = opts.count == null ? vp.count : Math.max(1, +opts.count);
+		if (vp.count !== +count) {
+			redrawReason += "count";
+			newVp.count = count;
+			diffVp.count = count - vp.count;
+		}
+		// if (vp.left !== +opts.left) {
+		// 	diffVp.left = left - vp.left;
+		// 	newVp.left = opts.left;
+		// 	redrawReason += "left";
+		// }
+		// if (vp.right !== +opts.right) {
+		// 	diffVp.right = right - vp.right;
+		// 	newVp.right = opts.right;
+		// 	redrawReason += "right";
+		// }
+
+		if (!redrawReason) {
+			return false;
+		}
+		// Let user cancel or modify the update
+		var info = {
+			next: newVp,
+			diff: diffVp,
+			scrollOnly: redrawReason === "start",
+		};
+		if (
+			this._triggerTreeEvent("beforeUpdateViewport", null, info) === false
+		) {
+			return false;
+		}
+		info.prev = $.extend({}, vp);
+		delete info.next;
+		// vp.enabled = newVp.enabled;
+		vp.start = newVp.start;
+		vp.count = newVp.count;
+
+		// Make sure we have the correct count of TRs
+		var prevPhase = this.isVpUpdating;
+
+		if (trCount > count) {
+			for (i = 0; i < trCount - count; i++) {
+				delete this.tbody.lastChild.ftnode;
+				this.tbody.removeChild(this.tbody.lastChild);
+			}
+		} else if (trCount < count) {
+			for (i = 0; i < count - trCount; i++) {
+				newRow = this.rowFragment.firstChild.cloneNode(true);
+				this.tbody.appendChild(newRow);
+			}
+		}
+		trCount = trList.length;
+
+		// Update visible node cache if needed
+		var force = opts.force;
+		this.redrawViewport(force);
+
+		this._triggerTreeEvent("updateViewport", null, info);
+
+		this.isVpUpdating = prevPhase;
+		return true;
+	};
+
+	/**
+	 * [ext-grid] Calculate the viewport count from current scroll wrapper height.
+	 *
+	 * @alias Fancytree#adjustViewportSize
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype.adjustViewportSize = function() {
+		_assert(
+			this.scrollWrapper,
+			"No parent div.fancytree-grid-container found."
+		);
+		if (this.isVpUpdating) {
+			this.debug("Ignoring adjustViewportSize() during VP update.");
+			return;
+		}
+		// Calculate how many rows fit into current container height
+		var $table = this.$container,
+			wrapper = this.scrollWrapper,
+			trHeight = $table
+				.find(">tbody>tr")
+				.first()
+				.height(),
+			tableHeight = $table.height(),
+			headHeight = tableHeight - this.viewport.count * trHeight,
+			wrapperHeight = wrapper.offsetHeight,
+			free = wrapperHeight - headHeight,
+			newCount = Math.floor(free / trHeight);
+
+		// console.info(
+		// 	"set container height",
+		// 	$(this)
+		// 		.parent(".fancytree-grid-container")
+		// 		.height()
+		// );
+
+		this.setViewport({ count: newCount });
+		// if (SCROLL_MODE === "scroll") {
+		// 	// Add bottom margin to the table, to make sure the wrapper becomes
+		// 	// scrollable
+		// 	var mb = wrapperHeight - $table.height() - 2.0 * EPS;
+		// 	this.debug("margin-bottom=" + mb);
+		// 	$table.css("margin-bottom", mb);
+		// }
+	};
+
+	/*
+	 * [ext-grid] Calculate the scroll container dimension from the current tree table.
+	 *
+	 * @alias Fancytree#initViewportWrapper
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype._initViewportWrapper = function() {
+		var // wrapper = this.scrollWrapper,
+			// $wrapper = $(wrapper),
+			tree = this;
+
+		// if (SCROLL_MODE === "scroll") {
+		// 	$wrapper.on("scroll", function(e) {
+		// 		var viewport = tree.viewport,
+		// 			curTop = wrapper.scrollTop,
+		// 			homeTop = viewport.start === 0 ? 0 : EPS,
+		// 			dy = viewport.start === 0 ? 1 : curTop - EPS; //homeTop;
+
+		// 		tree.debug(
+		// 			"Got 'scroll' event: scrollTop=" +
+		// 				curTop +
+		// 				", homeTop=" +
+		// 				homeTop +
+		// 				", start=" +
+		// 				viewport.start +
+		// 				", dy=" +
+		// 				dy
+		// 		);
+		// 		if (tree.isVpUpdating) {
+		// 			tree.debug("Ignoring scroll during VP update.");
+		// 			return;
+		// 		} else if (curTop === homeTop) {
+		// 			tree.debug("Ignoring scroll to neutral " + homeTop + ".");
+		// 			return;
+		// 		}
+		// 		tree._shiftViewport("vscroll", dy);
+		// 		homeTop = viewport.start === 0 ? 0 : EPS;
+		// 		setTimeout(function() {
+		// 			tree.debug(
+		// 				"scrollTop(" +
+		// 					wrapper.scrollTop +
+		// 					" -> " +
+		// 					homeTop +
+		// 					")..."
+		// 			);
+		// 			wrapper.scrollTop = homeTop;
+		// 		}, 0);
+		// 	});
+		// }
+		if (SCROLL_MODE === "wheel") {
+			this.$container.on("wheel", function(e) {
+				var orgEvent = e.originalEvent,
+					viewport = tree.viewport,
+					dy = orgEvent.deltaY; // * orgEvent.wheelDeltaY;
+
+				if (!dy || e.altKey || e.ctrlKey || e.metaKey || e.shiftKey) {
+					return true;
+				}
+				if (dy < 0 && viewport.start === 0) {
+					return true;
+				}
+				if (dy > 0 && tree.isViewportBottom()) {
+					return true;
+				}
+				tree.debug(
+					"Got 'wheel' event: dy=" +
+						dy +
+						", mode=" +
+						orgEvent.deltaMode
+				);
+				tree._shiftViewport("vscroll", dy);
+				return false;
+			});
+		}
+	};
+
+	/*
+	 * [ext-grid] Renumber and collect all visible rows.
+	 *
+	 * @param {bool} [force=false]
+	 * @param {FancytreeNode | int} [startIdx=0]
+	 * @alias Fancytree#_renumberVisibleNodes
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype._renumberVisibleNodes = function(
+		force,
+		startIdx
+	) {
+		if (
+			(!this.options.viewport.enabled || this.visibleNodeList != null) &&
+			force !== true
+		) {
+			// this.debug("_renumberVisibleNodes() ignored.");
+			return false;
+		}
+		window.console.time("_renumberVisibleNodes()");
+		var i = 0,
+			visibleNodeList = (this.visibleNodeList = []);
+
+		// Reset previous data
+		this.visit(function(node) {
+			node._rowIdx = null;
+			// node.span = null;
+			// if (node.tr) {
+			// 	delete node.tr.ftnode;
+			// 	node.tr = null;
+			// }
+		});
+		// Iterate over all *visible* nodes
+		this.visitRows(function(node) {
+			node._rowIdx = i++;
+			visibleNodeList.push(node);
+		});
+		window.console.timeEnd("_renumberVisibleNodes()");
+	};
+
+	/**
+	 * [ext-grid] Render all visible nodes into the viweport.
+	 *
+	 * @param {bool} [force=false]
+	 * @alias Fancytree#redrawViewport
+	 * @requires jquery.fancytree.grid.js
+	 */
+	$.ui.fancytree._FancytreeClass.prototype.redrawViewport = function(force) {
+		if (this._enableUpdate === false) {
+			// tree.debug("no render", tree._enableUpdate);
+			return;
+		}
+		window.console.time("redrawViewport()");
+		this._renumberVisibleNodes(force);
+		// Adjust vp.start value to assure the current content is inside:
+		this._fixStart(null, true);
+
+		var i = 0,
+			vp = this.viewport,
+			visibleNodeList = this.visibleNodeList,
+			start = vp.start,
+			bottom = start + vp.count,
+			tr,
+			_renderCount = 0,
+			trIdx = 0,
+			trList = this.tbody.children,
+			prevPhase = this.isVpUpdating;
+
+		// Reset previous data
+		this.visit(function(node) {
+			// node.debug("redrawViewport(): _rowIdx=" + node._rowIdx);
+			node.span = null;
+			if (node.tr) {
+				delete node.tr.ftnode;
+				node.tr = null;
+			}
+		});
+
+		// Redraw the whole tree, erasing all node markup before and after
+		// the viewport
+
+		for (i = start; i < bottom; i++) {
+			var node = visibleNodeList[i];
+
+			tr = trList[trIdx];
+
+			if (!node) {
+				// TODO: make trailing empty rows configurable (custom template or remove TRs)
+				var newRow = this.rowFragment.firstChild.cloneNode(true);
+				this.tbody.replaceChild(newRow, tr);
+				trIdx++;
+				continue;
+			}
+			if (tr !== node.tr) {
+				node.tr = tr;
+				node.render();
+				_renderCount++;
+
+				// TODO:
+				// Implement scrolling by re-using existing markup
+				// e.g. shifting TRs or TR child elements instead of
+				// re-creating all the time
+			}
+			trIdx++;
+		}
+		this.isVpUpdating = prevPhase;
+		window.console.timeEnd("redrawViewport()");
+	};
+
+	$.ui.fancytree.registerExtension({
+		name: "grid",
+		version: "2.31.0",
+		// Default options for this extension.
+		options: {
+			checkboxColumnIdx: null, // render the checkboxes into the this column index (default: nodeColumnIdx)
+			indentation: 16, // indent every node level by 16px
+			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
+			nodeColumnIdx: 0, // render node expander, icon, and title to this column (default: #0)
+		},
+		// Overide virtual methods for this extension.
+		// `this`       : is this extension object
+		// `this._super`: the virtual function that was overriden (member of prev. extension or Fancytree)
+		treeInit: function(ctx) {
+			var i,
+				columnCount,
+				n,
+				$row,
+				$tbody,
+				tree = ctx.tree,
+				opts = ctx.options,
+				tableOpts = opts.table,
+				$table = tree.widget.element,
+				$scrollWrapper = $table.parent(".fancytree-grid-container");
+
+			if ($.inArray("table", opts.extensions) >= 0) {
+				$.error("ext-grid and ext-table are mutually exclusive.");
+			}
+			if (opts.renderStatusColumns === true) {
+				opts.renderStatusColumns = opts.renderColumns;
+			}
+			// Note: we also re-use CSS rules from ext-table
+			$table.addClass(
+				"fancytree-container fancytree-ext-grid fancytree-ext-table"
+			);
+			$tbody = $table.find(">tbody");
+			if (!$tbody.length) {
+				// TODO: not sure if we can rely on browsers to insert missing <tbody> before <tr>s:
+				if ($table.find(">tr").length) {
+					$.error(
+						"Expected table > tbody > tr. If you see this, please open an issue."
+					);
+				}
+				$tbody = $("<tbody>").appendTo($table);
+			}
+
+			tree.tbody = $tbody[0];
+
+			// Prepare row templates:
+			// Determine column count from table header if any
+			columnCount = $("thead >tr", $table)
+				.last()
+				.find(">th").length;
+			// Read TR templates from tbody if any
+			$row = $tbody.children("tr").first();
+			if ($row.length) {
+				n = $row.children("td").length;
+				if (columnCount && n !== columnCount) {
+					tree.warn(
+						"Column count mismatch between thead (" +
+							columnCount +
+							") and tbody (" +
+							n +
+							"): using tbody."
+					);
+					columnCount = n;
+				}
+				$row = $row.clone();
+			} else {
+				// Only thead is defined: create default row markup
+				_assert(
+					columnCount >= 1,
+					"Need either <thead> or <tbody> with <td> elements to determine column count."
+				);
+				$row = $("<tr />");
+				for (i = 0; i < columnCount; i++) {
+					$row.append("<td />");
+				}
+			}
+			$row.find(">td")
+				.eq(tableOpts.nodeColumnIdx)
+				.html("<span class='fancytree-node' />");
+			if (opts.aria) {
+				$row.attr("role", "row");
+				$row.find("td").attr("role", "gridcell");
+			}
+			tree.rowFragment = document.createDocumentFragment();
+			tree.rowFragment.appendChild($row.get(0));
+
+			$tbody.empty();
+
+			// Make sure that status classes are set on the node's <tr> elements
+			tree.statusClassPropName = "tr";
+			tree.ariaPropName = "tr";
+			this.nodeContainerAttrName = "tr";
+
+			// #489: make sure $container is set to <table>, even if ext-dnd is listed before ext-grid
+			tree.$container = $table;
+			if ($scrollWrapper.length) {
+				tree.scrollWrapper = $scrollWrapper[0];
+				this._initViewportWrapper();
+			} else {
+				tree.scrollWrapper = null;
+			}
+
+			// Scrolling is implemented completely differently here
+			$.ui.fancytree.overrideMethod(
+				$.ui.fancytree._FancytreeNodeClass.prototype,
+				"scrollIntoView",
+				function(effects, options) {
+					var node = this,
+						tree = node.tree,
+						topNode = options && options.topNode,
+						vp = tree.viewport,
+						start = vp.start;
+
+					if (!tree.viewport) {
+						return node._super.apply(this, arguments);
+					}
+					if (node._rowIdx < vp.start) {
+						start = node._rowIdx;
+					} else if (node._rowIdx >= vp.start + vp.count) {
+						start = node._rowIdx - vp.count + 1;
+					}
+					if (topNode && topNode._rowIdx < start) {
+						start = topNode._rowIdx;
+					}
+					tree.setViewport({ start: start });
+					// Return a resolved promise
+					return $.Deferred(function() {
+						this.resolveWith(node);
+					}).promise();
+				}
+			);
+
+			tree.visibleNodeList = null; // Set by _renumberVisibleNodes()
+			tree.viewport = {
+				enabled: true,
+				start: 0,
+				count: 10,
+				left: 0,
+				right: 0,
+			};
+			this.setViewport(
+				$.extend(
+					{
+						// enabled: true,
+						autoSize: true,
+						start: 0,
+						count: 10,
+						left: 0,
+						right: 0,
+						keepEmptyRows: true,
+					},
+					opts.viewport
+				)
+			);
+			// tree.$scrollbar = _addScrollbar($table);
+
+			this._superApply(arguments);
+
+			// standard Fancytree created a root UL
+			$(tree.rootNode.ul).remove();
+			tree.rootNode.ul = null;
+
+			// Add container to the TAB chain
+			// #577: Allow to set tabindex to "0", "-1" and ""
+			this.$container.attr("tabindex", opts.tabindex);
+			// this.$container.attr("tabindex", opts.tabbable ? "0" : "-1");
+			if (opts.aria) {
+				tree.$container
+					.attr("role", "treegrid")
+					.attr("aria-readonly", true);
+			}
+		},
+		nodeKeydown: function(ctx) {
+			var nextNode = null,
+				nextIdx = null,
+				tree = ctx.tree,
+				node = ctx.node,
+				nodeList = tree.visibleNodeList,
+				// treeOpts = ctx.options,
+				viewport = tree.viewport,
+				event = ctx.originalEvent,
+				eventString = FT.eventToString(event);
+
+			tree.debug("nodeKeydown(" + eventString + ")");
+
+			switch (eventString) {
+				case "home":
+				case "meta+up":
+					nextIdx = 0;
+					break;
+				case "end":
+				case "meta+down":
+					nextIdx = nodeList.length - 1;
+					break;
+				case "pageup":
+					nextIdx = node._rowIdx - viewport.count;
+					break;
+				case "pagedown":
+					nextIdx = node._rowIdx + viewport.count;
+					break;
+			}
+			if (nextIdx != null) {
+				nextIdx = Math.min(Math.max(0, nextIdx), nodeList.length - 1);
+				nextNode = nodeList[nextIdx];
+				nextNode.makeVisible();
+				nextNode.setActive();
+				return false;
+			}
+			return this._superApply(arguments);
+		},
+		nodeRemoveChildMarkup: function(ctx) {
+			var node = ctx.node;
+
+			node.visit(function(n) {
+				if (n.tr) {
+					delete n.tr.ftnode;
+					n.tr = null;
+					n.span = null;
+				}
+			});
+		},
+		nodeRemoveMarkup: function(ctx) {
+			var node = ctx.node;
+
+			if (node.tr) {
+				delete node.tr.ftnode;
+				node.tr = null;
+				node.span = null;
+			}
+			this.nodeRemoveChildMarkup(ctx);
+		},
+		/* Override standard render. */
+		nodeRender: function(ctx, force, deep, collapsed, _recursive) {
+			var children,
+				i,
+				l,
+				outsideViewport,
+				subCtx,
+				tree = ctx.tree,
+				node = ctx.node;
+
+			if (tree._enableUpdate === false) {
+				node.debug("nodeRender(): _enableUpdate: false");
+				return;
+			}
+			var opts = ctx.options,
+				viewport = tree.viewport.enabled ? tree.viewport : null,
+				start = viewport && viewport.start > 0 ? +viewport.start : 0,
+				bottom = viewport ? start + viewport.count - 1 : 0,
+				isRootNode = !node.parent;
+
+			_assert(viewport);
+
+			// node.debug("nodeRender(): " + node + ", isRoot=" + isRootNode, "tr=" + node.tr, "hcp=" + ctx.hasCollapsedParents, "parent.tr=" + (node.parent && node.parent.tr));
+			if (!_recursive) {
+				// node.debug("nodeRender(): start top node");
+				if (isRootNode && viewport) {
+					node.debug("nodeRender(): redrawViewport() instead");
+					return ctx.tree.redrawViewport();
+				}
+				ctx.hasCollapsedParents = node.parent && !node.parent.expanded;
+				// Make sure visible row indices are up-to-date
+				if (viewport) {
+					tree._renumberVisibleNodes();
+				}
+			}
+
+			if (!isRootNode) {
+				outsideViewport =
+					viewport &&
+					(node._rowIdx < start ||
+						node._rowIdx >= start + viewport.count);
+
+				// node.debug(
+				// 	"nodeRender(): idx=" +
+				// 		node._rowIdx +
+				// 		", outside=" +
+				// 		outsideViewport +
+				// 		", TR count=" +
+				// 		tree.tbody.rows.length
+				// );
+				if (outsideViewport) {
+					// node.debug("nodeRender(): outsideViewport: ignored");
+					return;
+				}
+				if (!node.tr) {
+					if (node._rowIdx == null) {
+						// node.warn("nodeRender(): ignoring hidden");
+						return;
+					}
+					node.warn("nodeRender(): creating new TR!");
+					node.tr = tree.tbody.rows[node._rowIdx - start];
+				}
+				// _assert(
+				// 	node.tr,
+				// 	"nodeRender() called for node.tr == null: " + node
+				// );
+				node.tr.ftnode = node;
+
+				if (node.key && opts.generateIds) {
+					node.tr.id = opts.idPrefix + node.key;
+				}
+				node.span = $("span.fancytree-node", node.tr).get(0);
+
+				// Set icon, link, and title (normally this is only required on initial render)
+				// var ctx = this._makeHookContext(node);
+				this.nodeRenderTitle(ctx); // triggers renderColumns()
+
+				// Allow tweaking, binding, after node was created for the first time
+				if (opts.createNode) {
+					opts.createNode.call(this, { type: "createNode" }, ctx);
+				}
+			}
+			// Allow tweaking after node state was rendered
+			if (opts.renderNode) {
+				opts.renderNode.call(tree, { type: "renderNode" }, ctx);
+			}
+			// Visit child nodes
+			// Add child markup
+			children = node.children;
+			_assert(!deep, "deep is not supported");
+
+			if (children && (isRootNode || deep || node.expanded)) {
+				for (i = 0, l = children.length; i < l; i++) {
+					var child = children[i];
+
+					if (viewport && child._rowIdx > bottom) {
+						children[i].debug("BREAK render children loop");
+						return false;
+					}
+					subCtx = $.extend({}, ctx, { node: child });
+					subCtx.hasCollapsedParents =
+						subCtx.hasCollapsedParents || !node.expanded;
+					this.nodeRender(subCtx, force, deep, collapsed, true);
+				}
+			}
+		},
+		nodeRenderTitle: function(ctx, title) {
+			var $cb,
+				res,
+				tree = ctx.tree,
+				node = ctx.node,
+				opts = ctx.options,
+				isStatusNode = node.isStatusNode();
+
+			res = this._super(ctx, title);
+
+			if (node.isRootNode()) {
+				return res;
+			}
+			// Move checkbox to custom column
+			if (
+				opts.checkbox &&
+				!isStatusNode &&
+				opts.table.checkboxColumnIdx != null
+			) {
+				$cb = $("span.fancytree-checkbox", node.span); //.detach();
+				$(node.tr)
+					.find("td")
+					.eq(+opts.table.checkboxColumnIdx)
+					.html($cb);
+			}
+			// Update element classes according to node state
+			this.nodeRenderStatus(ctx);
+
+			if (isStatusNode) {
+				if (opts.renderStatusColumns) {
+					// Let user code write column content
+					opts.renderStatusColumns.call(
+						tree,
+						{ type: "renderStatusColumns" },
+						ctx
+					);
+				} else if (opts.grid.mergeStatusColumns && node.isTopLevel()) {
+					node.warn("mergeStatusColumns is not yet implemented.");
+					// This approach would not work, since the roe may be re-used:
+					// $(node.tr)
+					// 	.find(">td")
+					// 	.eq(0)
+					// 	.prop("colspan", tree.columnCount)
+					// 	.text(node.title)
+					// 	.addClass("fancytree-status-merged")
+					// 	.nextAll()
+					// 	.remove();
+				} // else: default rendering for status node: leave other cells empty
+			} else if (opts.renderColumns) {
+				opts.renderColumns.call(tree, { type: "renderColumns" }, ctx);
+			}
+			return res;
+		},
+		nodeRenderStatus: function(ctx) {
+			var indent,
+				node = ctx.node,
+				opts = ctx.options;
+
+			this._super(ctx);
+
+			$(node.tr).removeClass("fancytree-node");
+			// indent
+			indent = (node.getLevel() - 1) * opts.table.indentation;
+			if (opts.rtl) {
+				$(node.span).css({ paddingRight: indent + "px" });
+			} else {
+				$(node.span).css({ paddingLeft: indent + "px" });
+			}
+		},
+		/* Expand node, return Deferred.promise. */
+		nodeSetExpanded: function(ctx, flag, callOpts) {
+			var node = ctx.node,
+				tree = ctx.tree;
+
+			// flag defaults to true
+			flag = flag !== false;
+
+			if ((node.expanded && flag) || (!node.expanded && !flag)) {
+				// Expanded state isn't changed - just call base implementation
+				return this._superApply(arguments);
+			}
+
+			var dfd = new $.Deferred(),
+				subOpts = $.extend({}, callOpts, {
+					noEvents: true,
+					noAnimation: true,
+				});
+
+			callOpts = callOpts || {};
+
+			function _afterExpand(ok) {
+				tree.redrawViewport(true);
+
+				if (ok) {
+					if (
+						flag &&
+						ctx.options.autoScroll &&
+						!callOpts.noAnimation &&
+						node.hasChildren()
+					) {
+						// Scroll down to last child, but keep current node visible
+						node.getLastChild()
+							.scrollIntoView(true, { topNode: node })
+							.always(function() {
+								if (!callOpts.noEvents) {
+									tree._triggerNodeEvent(
+										flag ? "expand" : "collapse",
+										ctx
+									);
+								}
+								dfd.resolveWith(node);
+							});
+					} else {
+						if (!callOpts.noEvents) {
+							tree._triggerNodeEvent(
+								flag ? "expand" : "collapse",
+								ctx
+							);
+						}
+						dfd.resolveWith(node);
+					}
+				} else {
+					if (!callOpts.noEvents) {
+						tree._triggerNodeEvent(
+							flag ? "expand" : "collapse",
+							ctx
+						);
+					}
+					dfd.rejectWith(node);
+				}
+			}
+			// Call base-expand with disabled events and animation
+			this._super(ctx, flag, subOpts)
+				.done(function() {
+					_afterExpand(true);
+				})
+				.fail(function() {
+					_afterExpand(false);
+				});
+			return dfd.promise();
+		},
+		treeClear: function(ctx) {
+			// this.nodeRemoveChildMarkup(this._makeHookContext(this.rootNode));
+			// this._renumberReset(); // Invalidate visible row cache
+			return this._superApply(arguments);
+		},
+		treeDestroy: function(ctx) {
+			this.$container.find("tbody").empty();
+			if (this.$source) {
+				this.$source.removeClass("fancytree-helper-hidden");
+			}
+			this._renumberReset(); // Invalidate visible row cache
+			return this._superApply(arguments);
+		},
+		treeStructureChanged: function(ctx, type) {
+			// debugger;
+			if (type !== "addNode" || ctx.tree.visibleNodeList) {
+				// this.debug("treeStructureChanged(" + type + ")");
+				this._renumberReset(); // Invalidate visible row cache
+			}
+		},
+	});
+	// Value returned by `require('jquery.fancytree..')`
+	return $.ui.fancytree;
+}); // End of closure
diff --git a/dist/modules/jquery.fancytree.gridnav.js b/dist/modules/jquery.fancytree.gridnav.js
index bfa1c62b..f845c6ea 100644
--- a/dist/modules/jquery.fancytree.gridnav.js
+++ b/dist/modules/jquery.fancytree.gridnav.js
@@ -4,13 +4,13 @@
  * Support keyboard navigation for trees with embedded input controls.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -127,7 +127,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "gridnav",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			autofocusInput: false, // Focus first embedded input if node gets activated
@@ -179,7 +179,10 @@
 					// Set focus to input sub input (if node was clicked, but not
 					// when TAB was pressed )
 					$outer = $(node.tr || node.span);
-					$outer.find(":input:enabled:first").focus();
+					$outer
+						.find(":input:enabled")
+						.first()
+						.focus();
 				}
 			}
 		},
diff --git a/dist/modules/jquery.fancytree.js b/dist/modules/jquery.fancytree.js
index 75c09aa6..867612b8 100644
--- a/dist/modules/jquery.fancytree.js
+++ b/dist/modules/jquery.fancytree.js
@@ -3,12 +3,12 @@
  * Tree view control with support for lazy loading and much more.
  * https://github.com/mar10/fancytree/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 /** Core Fancytree module.
@@ -44,8 +44,8 @@
 		attr,
 		FT = null, // initialized below
 		TEST_IMG = new RegExp(/\.|\//), // strings are considered image urls if they contain '.' or '/'
-		REX_HTML = /[&<>"'\/]/g, // Escape those characters
-		REX_TOOLTIP = /[<>"'\/]/g, // Don't escape `&` in tooltips
+		REX_HTML = /[&<>"'/]/g, // Escape those characters
+		REX_TOOLTIP = /[<>"'/]/g, // Don't escape `&` in tooltips
 		RECURSIVE_REQUEST_ERROR = "$recursive_request",
 		ENTITY_MAP = {
 			"&": "&amp;",
@@ -265,28 +265,30 @@
 			target = {};
 		}
 		if (i === length) {
-			throw "need at least two args";
+			throw Error("need at least two args");
 		}
 		for (; i < length; i++) {
 			// Only deal with non-null/undefined values
 			if ((options = arguments[i]) != null) {
 				// Extend the base object
 				for (name in options) {
-					src = target[name];
-					copy = options[name];
-					// Prevent never-ending loop
-					if (target === copy) {
-						continue;
-					}
-					// Recurse if we're merging plain objects
-					// (NOTE: unlike $.extend, we don't merge arrays, but relace them)
-					if (copy && $.isPlainObject(copy)) {
-						clone = src && $.isPlainObject(src) ? src : {};
-						// Never move original objects, clone them
-						target[name] = _simpleDeepMerge(clone, copy);
-						// Don't bring in undefined values
-					} else if (copy !== undefined) {
-						target[name] = copy;
+					if (options.hasOwnProperty(name)) {
+						src = target[name];
+						copy = options[name];
+						// Prevent never-ending loop
+						if (target === copy) {
+							continue;
+						}
+						// Recurse if we're merging plain objects
+						// (NOTE: unlike $.extend, we don't merge arrays, but replace them)
+						if (copy && $.isPlainObject(copy)) {
+							clone = src && $.isPlainObject(src) ? src : {};
+							// Never move original objects, clone them
+							target[name] = _simpleDeepMerge(clone, copy);
+							// Don't bring in undefined values
+						} else if (copy !== undefined) {
+							target[name] = copy;
+						}
 					}
 				}
 			}
@@ -389,11 +391,10 @@
 			return $.Deferred(function() {
 				this.resolve();
 			}).promise();
-		} else {
-			return $.Deferred(function() {
-				this.resolveWith(context, argArray);
-			}).promise();
 		}
+		return $.Deferred(function() {
+			this.resolveWith(context, argArray);
+		}).promise();
 	}
 
 	function _getRejectedPromise(context, argArray) {
@@ -401,11 +402,10 @@
 			return $.Deferred(function() {
 				this.reject();
 			}).promise();
-		} else {
-			return $.Deferred(function() {
-				this.rejectWith(context, argArray);
-			}).promise();
 		}
+		return $.Deferred(function() {
+			this.rejectWith(context, argArray);
+		}).promise();
 	}
 
 	function _makeResolveFunc(deferred, context) {
@@ -611,6 +611,11 @@
 			for (var i = 0, l = children.length; i < l; i++) {
 				this.children.push(new FancytreeNode(this, children[i]));
 			}
+			this.tree._callHook(
+				"treeStructureChanged",
+				this.tree,
+				"setChildren"
+			);
 		},
 		/**
 		 * Append (or insert) a list of child nodes.
@@ -788,12 +793,14 @@
 				IGNORE_MAP = { children: true, expanded: true, parent: true }; // TODO: should be global
 
 			for (name in patch) {
-				v = patch[name];
-				if (!IGNORE_MAP[name] && !$.isFunction(v)) {
-					if (NODE_ATTR_MAP[name]) {
-						this[name] = v;
-					} else {
-						this.data[name] = v;
+				if (patch.hasOwnProperty(name)) {
+					v = patch[name];
+					if (!IGNORE_MAP[name] && !$.isFunction(v)) {
+						if (NODE_ATTR_MAP[name]) {
+							this[name] = v;
+						} else {
+							this.data[name] = v;
+						}
 					}
 				}
 			}
@@ -889,7 +896,7 @@
 		 * @param {*} msg string or object or array of such
 		 */
 		error: function(msg) {
-			if (this.options.debugLevel >= 1) {
+			if (this.tree.options.debugLevel >= 1) {
 				Array.prototype.unshift.call(arguments, this.toString());
 				consoleApply("error", arguments);
 			}
@@ -928,6 +935,16 @@
 			});
 			return res;
 		},
+		/** Find a node relative to self.
+		 *
+		 * @param {number|string} where The keyCode that would normally trigger this move,
+		 *		or a keyword ('down', 'first', 'last', 'left', 'parent', 'right', 'up').
+		 * @returns {FancytreeNode}
+		 * @since v2.31
+		 */
+		findRelatedNode: function(where, includeHidden) {
+			return this.tree.findRelatedNode(this, where, includeHidden);
+		},
 		/* Apply selection state (internal use only) */
 		_changeSelectStatusAttrs: function(state) {
 			var changed = false,
@@ -986,6 +1003,10 @@
 
 			this.visit(function(node) {
 				node._changeSelectStatusAttrs(flag);
+				if (node.radiogroup) {
+					// #931: don't (de)select this branch
+					return "skip";
+				}
 			});
 			this.fixSelection3FromEndNodes(callOpts);
 		},
@@ -1041,11 +1062,12 @@
 							}
 						}
 					}
+					// eslint-disable-next-line no-nested-ternary
 					state = allSelected
 						? true
 						: someSelected
-							? undefined
-							: false;
+						? undefined
+						: false;
 				} else {
 					// This is an end-node: simply report the status
 					unselState = FT.evalOption(
@@ -1057,6 +1079,15 @@
 					);
 					state = unselState == null ? !!node.selected : !!unselState;
 				}
+				// #939: Keep a `partsel` flag that was explicitly set on a lazy node
+				if (
+					node.partsel &&
+					!node.selected &&
+					node.lazy &&
+					node.children == null
+				) {
+					state = undefined;
+				}
 				node._changeSelectStatusAttrs(state);
 				return state;
 			}
@@ -1105,6 +1136,7 @@
 						}
 					}
 				}
+				// eslint-disable-next-line no-nested-ternary
 				state = allSelected ? true : someSelected ? undefined : false;
 				node._changeSelectStatusAttrs(state);
 			});
@@ -1197,19 +1229,18 @@
 			});
 			return res.join(separator);
 		},
-		/** Return the parent keys separated by options.keyPathSeparator, e.g. "id_1/id_17/id_32".
+		/** Return the parent keys separated by options.keyPathSeparator, e.g. "/id_1/id_17/id_32".
+		 *
+		 * (Unlike `node.getPath()`, this method prepends a "/" and inverts the first argument.)
+		 *
+		 * @see FancytreeNode#getPath
 		 * @param {boolean} [excludeSelf=false]
 		 * @returns {string}
 		 */
 		getKeyPath: function(excludeSelf) {
-			var path = [],
-				sep = this.tree.options.keyPathSeparator;
-			this.visitParents(function(n) {
-				if (n.parent) {
-					path.unshift(n.key);
-				}
-			}, !excludeSelf);
-			return sep + path.join(sep);
+			var sep = this.tree.options.keyPathSeparator;
+
+			return sep + this.getPath(!excludeSelf, "key", sep);
 		},
 		/** Return the last child of this node or null.
 		 * @returns {FancytreeNode | null}
@@ -1273,6 +1304,30 @@
 			}
 			return l;
 		},
+		/** Return a string representing the hierachical node path, e.g. "a/b/c".
+		 * @param {boolean} [includeSelf=true]
+		 * @param {string | function} [part="title"] node property name or callback
+		 * @param {string} [separator="/"]
+		 * @returns {string}
+		 * @since v2.31
+		 */
+		getPath: function(includeSelf, part, separator) {
+			includeSelf = includeSelf !== false;
+			part = part || "title";
+			separator = separator || "/";
+
+			var val,
+				path = [],
+				isFunc = $.isFunction(part);
+
+			this.visitParents(function(n) {
+				if (n.parent) {
+					val = isFunc ? part(n) : n[part];
+					path.unshift(val);
+				}
+			}, includeSelf);
+			return path.join(separator);
+		},
 		/** Return the predecessor node (under the same parent) or null.
 		 * @returns {FancytreeNode | null}
 		 */
@@ -1499,13 +1554,39 @@
 		isVisible: function() {
 			var i,
 				l,
+				n,
+				hasFilter = this.tree.enableFilter,
 				parents = this.getParentList(false, false);
 
+			// TODO: check $(n.span).is(":visible")
+			// i.e. return false for nodes (but not parents) that are hidden
+			// by a filter
+			if (hasFilter && !this.match && !this.subMatchCount) {
+				this.debug(
+					"isVisible: HIDDEN (" +
+						hasFilter +
+						", " +
+						this.match +
+						", " +
+						this.match +
+						")"
+				);
+				return false;
+			}
+
 			for (i = 0, l = parents.length; i < l; i++) {
-				if (!parents[i].expanded) {
+				n = parents[i];
+
+				if (!n.expanded) {
+					this.debug("isVisible: HIDDEN (parent collapsed)");
 					return false;
 				}
+				// if (hasFilter && !n.match && !n.subMatchCount) {
+				// 	this.debug("isVisible: HIDDEN (" + hasFilter + ", " + this.match + ", " + this.match + ")");
+				// 	return false;
+				// }
 			}
+			this.debug("isVisible: VISIBLE");
 			return true;
 		},
 		/** Deprecated.
@@ -1525,7 +1606,7 @@
 		load: function(forceReload) {
 			var res,
 				source,
-				that = this,
+				self = this,
 				wasExpanded = this.isExpanded();
 
 			_assert(this.isLazy(), "load() requires a lazy node");
@@ -1551,11 +1632,11 @@
 			if (wasExpanded) {
 				this.expanded = true;
 				res.always(function() {
-					that.render();
+					self.render();
 				});
 			} else {
 				res.always(function() {
-					that.renderStatus(); // fix expander icon to 'loaded'
+					self.renderStatus(); // fix expander icon to 'loaded'
 				});
 			}
 			return res;
@@ -1568,7 +1649,7 @@
 		 */
 		makeVisible: function(opts) {
 			var i,
-				that = this,
+				self = this,
 				deferreds = [],
 				dfd = new $.Deferred(),
 				parents = this.getParentList(false, false),
@@ -1578,15 +1659,15 @@
 
 			// Expand bottom-up, so only the top node is animated
 			for (i = len - 1; i >= 0; i--) {
-				// that.debug("pushexpand" + parents[i]);
+				// self.debug("pushexpand" + parents[i]);
 				deferreds.push(parents[i].setExpanded(true, opts));
 			}
 			$.when.apply($, deferreds).done(function() {
 				// All expands have finished
-				// that.debug("expand DONE", scroll);
+				// self.debug("expand DONE", scroll);
 				if (scroll) {
-					that.scrollIntoView(effects).done(function() {
-						// that.debug("scroll DONE");
+					self.scrollIntoView(effects).done(function() {
+						// self.debug("scroll DONE");
 						dfd.resolve();
 					});
 				} else {
@@ -1618,6 +1699,7 @@
 				}
 			}
 			var pos,
+				tree = this.tree,
 				prevParent = this.parent,
 				targetParent =
 					mode === "child" ? targetNode : targetNode.parent;
@@ -1699,10 +1781,10 @@
 				targetParent.triggerModifyChild("add", this);
 			}
 			// Handle cross-tree moves
-			if (this.tree !== targetNode.tree) {
+			if (tree !== targetNode.tree) {
 				// Fix node.tree for all source nodes
 				//			_assert(false, "Cross-tree move is not yet implemented.");
-				this.warn("Cross-tree moveTo is experimantal!");
+				this.warn("Cross-tree moveTo is experimental!");
 				this.visit(function(n) {
 					// TODO: fix selection state and activation, ...
 					n.tree = targetNode.tree;
@@ -1713,6 +1795,7 @@
 			// if( !targetParent.expanded ){
 			//   prevParent.ul.removeChild(this.li);
 			// }
+			tree._callHook("treeStructureChanged", tree, "moveTo");
 
 			// Update HTML markup
 			if (!prevParent.isDescendantOf(targetParent)) {
@@ -1768,117 +1851,38 @@
 		 * @returns {$.Promise}
 		 */
 		navigate: function(where, activate) {
-			var i,
-				parents,
-				res,
-				handled = true,
-				KC = $.ui.keyCode,
-				sib = null;
-
-			// Navigate to node
-			function _goto(n) {
-				if (n) {
-					// setFocus/setActive will scroll later (if autoScroll is specified)
-					try {
-						n.makeVisible({ scrollIntoView: false });
-					} catch (e) {} // #272
-					// Node may still be hidden by a filter
-					if (!$(n.span).is(":visible")) {
-						n.debug("Navigate: skipping hidden node");
-						n.navigate(where, activate);
-						return;
-					}
-					return activate === false ? n.setFocus() : n.setActive();
-				}
-			}
+			var node,
+				KC = $.ui.keyCode;
 
+			// Handle optional expand/collapse action for LEFT/RIGHT
 			switch (where) {
-				case KC.BACKSPACE:
-					if (this.parent && this.parent.parent) {
-						res = _goto(this.parent);
-					}
-					break;
-				case KC.HOME:
-					this.tree.visit(function(n) {
-						// goto first visible node
-						if ($(n.span).is(":visible")) {
-							res = _goto(n);
-							return false;
-						}
-					});
-					break;
-				case KC.END:
-					this.tree.visit(function(n) {
-						// goto last visible node
-						if ($(n.span).is(":visible")) {
-							res = n;
-						}
-					});
-					if (res) {
-						res = _goto(res);
-					}
-					break;
+				case "left":
 				case KC.LEFT:
 					if (this.expanded) {
-						this.setExpanded(false);
-						res = _goto(this);
-					} else if (this.parent && this.parent.parent) {
-						res = _goto(this.parent);
+						return this.setExpanded(false);
 					}
 					break;
+				case "right":
 				case KC.RIGHT:
 					if (!this.expanded && (this.children || this.lazy)) {
-						this.setExpanded();
-						res = _goto(this);
-					} else if (this.children && this.children.length) {
-						res = _goto(this.children[0]);
+						return this.setExpanded();
 					}
 					break;
-				case KC.UP:
-					sib = this.getPrevSibling();
-					// #359: skip hidden sibling nodes, preventing a _goto() recursion
-					while (sib && !$(sib.span).is(":visible")) {
-						sib = sib.getPrevSibling();
-					}
-					while (
-						sib &&
-						sib.expanded &&
-						sib.children &&
-						sib.children.length
-					) {
-						sib = sib.children[sib.children.length - 1];
-					}
-					if (!sib && this.parent && this.parent.parent) {
-						sib = this.parent;
-					}
-					res = _goto(sib);
-					break;
-				case KC.DOWN:
-					if (
-						this.expanded &&
-						this.children &&
-						this.children.length
-					) {
-						sib = this.children[0];
-					} else {
-						parents = this.getParentList(false, true);
-						for (i = parents.length - 1; i >= 0; i--) {
-							sib = parents[i].getNextSibling();
-							// #359: skip hidden sibling nodes, preventing a _goto() recursion
-							while (sib && !$(sib.span).is(":visible")) {
-								sib = sib.getNextSibling();
-							}
-							if (sib) {
-								break;
-							}
-						}
-					}
-					res = _goto(sib);
-					break;
-				default:
-					handled = false;
 			}
-			return res || _getResolvedPromise();
+			// Otherwise activate or focus the related node
+			node = this.findRelatedNode(where);
+			if (node) {
+				// setFocus/setActive will scroll later (if autoScroll is specified)
+				try {
+					node.makeVisible({ scrollIntoView: false });
+				} catch (e) {} // #272
+				if (activate === false) {
+					return node.setFocus();
+				}
+				return node.setActive();
+			}
+			this.warn("Could not find related node '" + where + "'.");
+			return _getResolvedPromise();
 		},
 		/**
 		 * Remove this node (not allowed for system root).
@@ -1954,7 +1958,7 @@
 			var res,
 				parent = this.parent,
 				pos = $.inArray(this, parent.children),
-				that = this;
+				self = this;
 
 			_assert(
 				this.isPagingNode(),
@@ -1964,7 +1968,7 @@
 			res = this.tree._callHook("nodeLoadChildren", this, source);
 			res.done(function(data) {
 				// New nodes are currently children of `this`.
-				var children = that.children;
+				var children = self.children;
 				// Prepend newly loaded child nodes to `this`
 				// Move new children after self
 				for (i = 0; i < children.length; i++) {
@@ -1976,14 +1980,14 @@
 				);
 
 				// Remove self
-				that.children = null;
-				that.remove();
+				self.children = null;
+				self.remove();
 				// Redraw new nodes
 				parent.render();
 				// TODO: set node.partload = false if this was tha last paging node?
 				// parent.addPagingNode(false);
 			}).fail(function() {
-				that.setExpanded();
+				self.setExpanded();
 			});
 			return res;
 			// $.error("Not implemented: replaceWith()");
@@ -2041,7 +2045,9 @@
 		 */
 		scrollIntoView: function(effects, options) {
 			if (options !== undefined && _isNode(options)) {
-				throw "scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead.";
+				throw Error(
+					"scrollIntoView() with 'topNode' option is deprecated since 2014-05-08. Use 'options.topNode' instead."
+				);
 			}
 			// The scroll parent is typically the plain tree's <UL> container.
 			// For ext-table, we choose the nearest parent that has `position: relative`
@@ -2080,7 +2086,7 @@
 				$scrollParent[0] === document ||
 				$scrollParent[0] === document.body
 			) {
-				// `document` may returned by $().scrollParent(), if nothing is found,
+				// `document` may be returned by $().scrollParent(), if nothing is found,
 				// but would not work: (see #894)
 				this.debug(
 					"scrollIntoView(): normalizing scrollParent to 'window':",
@@ -2088,13 +2094,13 @@
 				);
 				$scrollParent = $(window);
 			}
-
+			// eslint-disable-next-line one-var
 			var topNodeY,
 				nodeY,
 				horzScrollbarHeight,
 				containerOffsetTop,
 				dfd = new $.Deferred(),
-				that = this,
+				self = this,
 				nodeHeight = $(this.span).height(),
 				topOfs = opts.scrollOfs.top || 0,
 				bottomOfs = opts.scrollOfs.bottom || 0,
@@ -2107,7 +2113,7 @@
 
 			// this.debug("scrollIntoView(), scrollTop=" + scrollTop, opts.scrollOfs);
 			//		_assert($(this.span).is(":visible"), "scrollIntoView node is invisible"); // otherwise we cannot calc offsets
-			if (!$(this.span).is(":visible")) {
+			if (!this.isVisible()) {
 				// We cannot calc offsets for hidden elements
 				this.warn("scrollIntoView(): node is invisible.");
 				return _getResolvedPromise();
@@ -2124,11 +2130,9 @@
 					"scrollParent should be a simple element or `window`, not document or body."
 				);
 
-				(containerOffsetTop = $scrollParent.offset().top),
-					(nodeY =
-						$(this.span).offset().top -
-						containerOffsetTop +
-						scrollTop); // relative to scroll parent
+				containerOffsetTop = $scrollParent.offset().top;
+				nodeY =
+					$(this.span).offset().top - containerOffsetTop + scrollTop; // relative to scroll parent
 				topNodeY = topNode
 					? $(topNode.span).offset().top -
 					  containerOffsetTop +
@@ -2156,7 +2160,7 @@
 				// outside the upper border
 				if (topNode) {
 					_assert(
-						topNode.isRootNode() || $(topNode.span).is(":visible"),
+						topNode.isRootNode() || topNode.isVisible(),
 						"topNode must be visible"
 					);
 					if (topNodeY < newScrollTop) {
@@ -2166,11 +2170,13 @@
 				}
 			}
 
-			if (newScrollTop !== null) {
+			if (newScrollTop === null) {
+				dfd.resolveWith(this);
+			} else {
 				// this.debug("    scrollIntoView(), SET newScrollTop=" + newScrollTop);
 				if (opts.effects) {
 					opts.effects.complete = function() {
-						dfd.resolveWith(that);
+						dfd.resolveWith(self);
 					};
 					$animateTarget.stop(true).animate(
 						{
@@ -2182,8 +2188,6 @@
 					$animateTarget[0].scrollTop = newScrollTop;
 					dfd.resolveWith(this);
 				}
-			} else {
-				dfd.resolveWith(this);
 			}
 			return dfd.promise();
 		},
@@ -2261,6 +2265,8 @@
 				function(a, b) {
 					var x = a.title.toLowerCase(),
 						y = b.title.toLowerCase();
+
+					// eslint-disable-next-line no-nested-ternary
 					return x === y ? 0 : x > y ? 1 : -1;
 				};
 			cl.sort(cmp);
@@ -2586,7 +2592,7 @@
 	 * @property {string} statusClassPropName Property name of FancytreeNode that contains the element which will receive the status classes.
 	 *     Typically "span", but "tr" for table extension.
 	 * @property {object} types Map for shared type specific meta data, used with node.type attribute. @since 2.27
-	 * @property {object} viewport Start and height of `ext-grid` dimension. @since 2.31
+	 * @property {object} viewport See ext-vieport. @since v2.31
 	 * @property {object} widget Base widget instance.
 	 */
 	function Fancytree(widget) {
@@ -2594,24 +2600,18 @@
 		this.$div = widget.element;
 		this.options = widget.options;
 		if (this.options) {
-			if (
-				$.isFunction(this.options.lazyload) &&
-				!$.isFunction(this.options.lazyLoad)
-			) {
-				this.options.lazyLoad = function() {
-					FT.warn(
-						"The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."
-					);
-					return widget.options.lazyload.apply(this, arguments);
-				};
+			if (this.options.lazyload !== undefined) {
+				$.error(
+					"The 'lazyload' event is deprecated since 2014-02-25. Use 'lazyLoad' (with uppercase L) instead."
+				);
 			}
-			if ($.isFunction(this.options.loaderror)) {
+			if (this.options.loaderror !== undefined) {
 				$.error(
 					"The 'loaderror' event was renamed since 2014-07-03. Use 'loadError' (with uppercase E) instead."
 				);
 			}
 			if (this.options.fx !== undefined) {
-				FT.warn(
+				$.error(
 					"The 'fx' option was replaced by 'toggleEffect' since 2014-11-30."
 				);
 			}
@@ -2627,7 +2627,7 @@
 		// allow to init tree.data.foo from <div data-foo=''>
 		this.data = _getElementDataAsDict(this.$div);
 		// TODO: use widget.uuid instead?
-		this._id = $.ui.fancytree._nextId++;
+		this._id = "" + (this.options.treeId || $.ui.fancytree._nextId++);
 		// TODO: use widget.eventNamespace instead?
 		this._ns = ".fancytree-" + this._id; // append for namespaced events
 		this.activeNode = null;
@@ -2640,6 +2640,7 @@
 		this.systemFocusElement = null;
 		this.lastQuicksearchTerm = "";
 		this.lastQuicksearchTime = 0;
+		this.viewport = null; // ext-grid
 
 		this.statusClassPropName = "span";
 		this.ariaPropName = "li";
@@ -2661,6 +2662,7 @@
 
 		// Create root markup
 		$ul = $("<ul>", {
+			id: "ft-id-" + this._id,
 			class: "ui-fancytree fancytree-container fancytree-plain",
 		}).appendTo(this.$div);
 		this.$container = $ul;
@@ -2782,7 +2784,10 @@
 				isMissing = required && this.ext[name] == null,
 				badOrder = !isMissing && before != null && before !== isBefore;
 
-			_assert(thisName && thisName !== name, "invalid or same name");
+			_assert(
+				thisName && thisName !== name,
+				"invalid or same name '" + thisName + "' (require yourself?)"
+			);
 
 			if (isMissing || badOrder) {
 				if (!message) {
@@ -2926,14 +2931,14 @@
 		 * @since 2.19
 		 */
 		enableUpdate: function(flag) {
-			flag = flag !== false; // Confusing use of '!'
-			/*jshint -W018 */ if (!!this._enableUpdate === !!flag) {
+			flag = flag !== false;
+			if (!!this._enableUpdate === !!flag) {
 				return flag;
 			}
-			/*jshint +W018 */
 			this._enableUpdate = flag;
 			if (flag) {
 				this.debug("enableUpdate(true): redraw "); //, this._dirtyRoots);
+				this._callHook("treeStructureChanged", this, "enableUpdate");
 				this.render();
 			} else {
 				// 	this._dirtyRoots = null;
@@ -2941,6 +2946,16 @@
 			}
 			return !flag; // return previous value
 		},
+		/** Write error to browser console if debugLevel >= 1 (prepending tree info)
+		 *
+		 * @param {*} msg string or object or array of such
+		 */
+		error: function(msg) {
+			if (this.options.debugLevel >= 1) {
+				Array.prototype.unshift.call(arguments, this.toString());
+				consoleApply("error", arguments);
+			}
+		},
 		/** Expand (or collapse) all parent nodes.
 		 *
 		 * This convenience method uses `tree.visit()` and `tree.setExpanded()`
@@ -2951,6 +2966,8 @@
 		 * @since 2.30
 		 */
 		expandAll: function(flag, opts) {
+			var prev = this.enableUpdate(false);
+
 			flag = flag !== false;
 			this.visit(function(node) {
 				if (
@@ -2960,6 +2977,7 @@
 					node.setExpanded(flag, opts);
 				}
 			});
+			this.enableUpdate(prev);
 		},
 		/**Find all nodes that matches condition.
 		 *
@@ -2990,78 +3008,119 @@
 		 * @param {FancytreeNode} [startNode] defaults to first node
 		 * @returns {FancytreeNode} matching node or null
 		 */
-		findNextNode: function(match, startNode, visibleOnly) {
+		findNextNode: function(match, startNode) {
+			//, visibleOnly) {
+			var res = null,
+				firstNode = this.getFirstChild();
+
 			match =
 				typeof match === "string"
 					? _makeNodeTitleStartMatcher(match)
 					: match;
-			startNode = startNode || this.getFirstChild();
-
-			var stopNode = null,
-				parentChildren = startNode.parent.children,
-				matchingNode = null,
-				walkVisible = function(parent, idx, fn) {
-					var i,
-						grandParent,
-						parentChildren = parent.children,
-						siblingCount = parentChildren.length,
-						node = parentChildren[idx];
-					// visit node itself
-					if (node && fn(node) === false) {
-						return false;
+			startNode = startNode || firstNode;
+
+			function _checkNode(n) {
+				// console.log("_check " + n)
+				if (match(n)) {
+					res = n;
+				}
+				if (res || n === startNode) {
+					return false;
+				}
+			}
+			this.visitRows(_checkNode, {
+				start: startNode,
+				includeSelf: false,
+			});
+			// Wrap around search
+			if (!res && startNode !== firstNode) {
+				this.visitRows(_checkNode, {
+					start: firstNode,
+					includeSelf: true,
+				});
+			}
+			return res;
+		},
+		/** Find a node relative to another node.
+		 *
+		 * @param {FancytreeNode} node
+		 * @param {number|string} where The keyCode that would normally trigger this move,
+		 *		or a keyword ('down', 'first', 'last', 'left', 'parent', 'right', 'up').
+		 * @param {boolean} [includeHidden=false] Not yet implemented
+		 * @returns {FancytreeNode|null}
+		 * @since v2.31
+		 */
+		findRelatedNode: function(node, where, includeHidden) {
+			var res = null,
+				KC = $.ui.keyCode;
+
+			switch (where) {
+				case "parent":
+				case KC.BACKSPACE:
+					if (node.parent && node.parent.parent) {
+						res = node.parent;
 					}
-					// visit descendants
-					if (node && node.children && node.expanded) {
-						if (walkVisible(node, 0, fn) === false) {
+					break;
+				case "first":
+				case KC.HOME:
+					// First visible node
+					this.visit(function(n) {
+						if (n.isVisible()) {
+							res = n;
 							return false;
 						}
-					}
-					// visit subsequent siblings
-					for (i = idx + 1; i < siblingCount; i++) {
-						if (walkVisible(parent, i, fn) === false) {
-							return false;
+					});
+					break;
+				case "last":
+				case KC.END:
+					this.visit(function(n) {
+						// last visible node
+						if (n.isVisible()) {
+							res = n;
 						}
+					});
+					break;
+				case "left":
+				case KC.LEFT:
+					if (node.expanded) {
+						node.setExpanded(false);
+					} else if (node.parent && node.parent.parent) {
+						res = node.parent;
 					}
-					// visit parent's subsequent siblings
-					grandParent = parent.parent;
-					if (grandParent) {
-						return walkVisible(
-							grandParent,
-							grandParent.children.indexOf(parent) + 1,
-							fn
-						);
-					} else {
-						// wrap-around: restart with first node
-						return walkVisible(parent, 0, fn);
-					}
-				};
-
-			walkVisible(
-				startNode.parent,
-				parentChildren.indexOf(startNode),
-				function(node) {
-					// Stop iteration if we see the start node a second time
-					if (node === stopNode) {
-						return false;
-					}
-					stopNode = stopNode || node;
-					// Ignore nodes hidden by a filter
-					if (!$(node.span).is(":visible")) {
-						node.debug("quicksearch: skipping hidden node");
-						return;
+					break;
+				case "right":
+				case KC.RIGHT:
+					if (!node.expanded && (node.children || node.lazy)) {
+						node.setExpanded();
+						res = node;
+					} else if (node.children && node.children.length) {
+						res = node.children[0];
 					}
-					// Test if we found a match, but search for a second match if this
-					// was the currently active node
-					if (match(node)) {
-						// node.debug("quicksearch match " + node.title, startNode);
-						matchingNode = node;
-						if (matchingNode !== startNode) {
+					break;
+				case "up":
+				case KC.UP:
+					this.visitRows(
+						function(n) {
+							res = n;
 							return false;
-						}
-					}
-				}
-			);
-			return matchingNode;
+						},
+						{ start: node, reverse: true, includeSelf: false }
+					);
+					break;
+				case "down":
+				case KC.DOWN:
+					this.visitRows(
+						function(n) {
+							res = n;
+							return false;
+						},
+						{ start: node, includeSelf: false }
+					);
+					break;
+				default:
+					this.tree.warn("Unknown relation '" + where + "'.");
+			}
+			return res;
 		},
 		// TODO: fromDict
 		/**
@@ -3351,6 +3410,8 @@
 				i,
 				key,
 				node,
+				nodeKey,
+				remain,
 				remainMap,
 				tmpParent,
 				segList,
@@ -3447,25 +3508,27 @@
 			}
 			// remainMap contains parent nodes, each with a list of relative sub-paths.
 			// We start loading all of them now, and pass the the list to each loader.
-			for (var nodeKey in remainMap) {
-				var remain = remainMap[nodeKey];
-				// console.log("for(): remain=", remain, "remainMap=", remainMap);
-				// key = remain.segList.shift();
-				// node = __findChild(remain.parent, key);
-				// if (node == null) {  // #576
-				// 	// Issue #576, refactored for v2.27:
-				// 	// The root cause was, that sometimes the wrong parent was used here
-				// 	// to find the next segment.
-				// 	// Falling back to getNodeByKey() was a hack that no longer works if a custom
-				// 	// matcher is used, because we cannot assume that a single segment-key is unique
-				// 	// throughout the tree.
-				// 	self.error("loadKeyPath: error loading child by key '" + key + "' (parent: " + target.parent + ")", target);
-				// 	// 	node = self.getNodeByKey(key);
-				// 	continue;
-				// }
-				subDfd = new $.Deferred();
-				deferredList.push(subDfd);
-				__lazyload(subDfd, remain.parent, remain.pathSegList);
+			for (nodeKey in remainMap) {
+				if (remainMap.hasOwnProperty(nodeKey)) {
+					remain = remainMap[nodeKey];
+					// console.log("for(): remain=", remain, "remainMap=", remainMap);
+					// key = remain.segList.shift();
+					// node = __findChild(remain.parent, key);
+					// if (node == null) {  // #576
+					// 	// Issue #576, refactored for v2.27:
+					// 	// The root cause was, that sometimes the wrong parent was used here
+					// 	// to find the next segment.
+					// 	// Falling back to getNodeByKey() was a hack that no longer works if a custom
+					// 	// matcher is used, because we cannot assume that a single segment-key is unique
+					// 	// throughout the tree.
+					// 	self.error("loadKeyPath: error loading child by key '" + key + "' (parent: " + target.parent + ")", target);
+					// 	// 	node = self.getNodeByKey(key);
+					// 	continue;
+					// }
+					subDfd = new $.Deferred();
+					deferredList.push(subDfd);
+					__lazyload(subDfd, remain.parent, remain.pathSegList);
+				}
 			}
 			// Return a promise that is resolved, when ALL paths were loaded
 			return $.when.apply($, deferredList).promise();
@@ -3591,14 +3654,19 @@
 		 * @param {object} [options]
 		 *     Defaults:
 		 *     {start: First top node, reverse: false, includeSelf: true, includeHidden: false}
-		 * @returns {boolean}
+		 * @returns {boolean} false if iteration was cancelled
 		 * @since 2.28
 		 */
 		visitRows: function(fn, opts) {
+			if (!this.rootNode.children) {
+				return false;
+			}
 			if (opts && opts.reverse) {
 				delete opts.reverse;
 				return this._visitRowsUp(fn, opts);
 			}
+			opts = opts || {};
+
 			var i,
 				nextIdx,
 				parent,
@@ -3607,6 +3675,7 @@
 				siblingOfs = 0,
 				skipFirstNode = opts.includeSelf === false,
 				includeHidden = !!opts.includeHidden,
+				checkFilter = !includeHidden && this.enableFilter,
 				node = opts.start || this.rootNode.children[0];
 
 			parent = node.parent;
@@ -3617,6 +3686,9 @@
 
 				for (i = nextIdx; i < siblings.length; i++) {
 					node = siblings[i];
+					if (checkFilter && !node.match && !node.subMatchCount) {
+						continue;
+					}
 					if (!skipFirstNode && fn(node) === false) {
 						return false;
 					}
@@ -3631,6 +3703,9 @@
 						// scoped variable may lead to confusing semantics:
 						/*jshint -W083 */
 						res = node.visit(function(n) {
+							if (checkFilter && !n.match && !n.subMatchCount) {
+								return "skip";
+							}
 							if (fn(n) === false) {
 								return false;
 							}
@@ -3667,6 +3742,9 @@
 				if (children[0] === node) {
 					// If this is already the first sibling, goto parent
 					node = parent;
+					if (!node.parent) {
+						break; // first node of the tree
+					}
 					children = parent.children;
 				} else {
 					// Otherwise, goto prev. sibling
@@ -3674,6 +3752,8 @@
 					node = children[idx - 1];
 					// If the prev. sibling has children, follow down to last descendant
 					while (
+						// See: https://github.com/eslint/eslint/issues/11302
+						// eslint-disable-next-line no-unmodified-loop-condition
 						(includeHidden || node.expanded) &&
 						node.children &&
 						node.children.length
@@ -3684,7 +3764,7 @@
 					}
 				}
 				// Skip invisible
-				if (!includeHidden && !$(node.span).is(":visible")) {
+				if (!includeHidden && !node.isVisible()) {
 					continue;
 				}
 				if (fn(node) === false) {
@@ -3836,7 +3916,7 @@
 				// TODO: return promise?
 				var matchNode,
 					stamp,
-					res,
+					_res,
 					focusNode,
 					event = ctx.originalEvent,
 					node = ctx.node,
@@ -3927,7 +4007,7 @@
 					case "right":
 					case "up":
 					case "down":
-						res = node.navigate(event.which, activate);
+						_res = node.navigate(event.which, activate);
 						break;
 					default:
 						handled = false;
@@ -3958,6 +4038,7 @@
 				var ajax,
 					delay,
 					dfd,
+					res,
 					tree = ctx.tree,
 					node = ctx.node,
 					requestId = Date.now();
@@ -4109,10 +4190,7 @@
 					});
 				}
 				// #383: accept and convert ECMAScript 6 Promise
-				if (
-					$.isFunction(source.then) &&
-					$.isFunction(source["catch"])
-				) {
+				if ($.isFunction(source.then) && $.isFunction(source.catch)) {
 					dfd = source;
 					source = new $.Deferred();
 					dfd.then(
@@ -4187,7 +4265,7 @@
 				} else {
 					if (ctx.options.postProcess) {
 						// #792: Call postProcess for non-deferred source
-						var res = tree._triggerNodeEvent(
+						res = tree._triggerNodeEvent(
 							"postProcess",
 							ctx,
 							ctx.originalEvent,
@@ -4341,7 +4419,7 @@
 			 * @param {EventData} ctx
 			 */
 			nodeRemoveChildren: function(ctx) {
-				var subCtx,
+				var //subCtx,
 					tree = ctx.tree,
 					node = ctx.node,
 					children = node.children;
@@ -4361,7 +4439,7 @@
 				this.nodeRemoveChildMarkup(ctx);
 				// Unlink children to support GC
 				// TODO: also delete this.children (not possible using visit())
-				subCtx = $.extend({}, ctx);
+				// subCtx = $.extend({}, ctx);
 				node.triggerModifyChild("remove", null);
 				node.visit(function(n) {
 					n.parent = null;
@@ -4484,8 +4562,11 @@
 					}
 					// Create <li><span /> </li>
 					// node.debug("render...");
-					if (!node.li) {
-						//	            node.debug("render... really");
+					if (node.li) {
+						// this.nodeRenderTitle(ctx);
+						this.nodeRenderStatus(ctx);
+					} else {
+						// node.debug("render... really");
 						firstTime = true;
 						node.li = document.createElement("li");
 						node.li.ftnode = node;
@@ -4511,9 +4592,6 @@
 								ctx
 							);
 						}
-					} else {
-						// this.nodeRenderTitle(ctx);
-						this.nodeRenderStatus(ctx);
 					}
 					// Allow tweaking after node state was rendered
 					if (opts.renderNode) {
@@ -4570,14 +4648,14 @@
 						for (i = 0, l = children.length - 1; i < l; i++) {
 							childNode1 = children[i];
 							childNode2 = childLI.ftnode;
-							if (childNode1 !== childNode2) {
+							if (childNode1 === childNode2) {
+								childLI = childLI.nextSibling;
+							} else {
 								// node.debug("_fixOrder: mismatch at index " + i + ": " + childNode1 + " != " + childNode2);
 								node.ul.insertBefore(
 									childNode1.li,
 									childNode2.li
 								);
-							} else {
-								childLI = childLI.nextSibling;
 							}
 						}
 					}
@@ -4862,10 +4940,10 @@
 					cnList.push(cn.expanded);
 				}
 				if (aria) {
-					if (hasChildren !== false) {
-						$ariaElem.attr("aria-expanded", Boolean(node.expanded));
-					} else {
+					if (hasChildren === false) {
 						$ariaElem.removeAttr("aria-expanded");
+					} else {
+						$ariaElem.attr("aria-expanded", Boolean(node.expanded));
 					}
 				}
 				if (node.folder) {
@@ -5135,6 +5213,11 @@
 						effect = opts.toggleEffect;
 
 					node.expanded = flag;
+					tree._callHook(
+						"treeStructureChanged",
+						ctx,
+						flag ? "expand" : "collapse"
+					);
 					// Create required markup, but make sure the top UL is hidden, so we
 					// can animate later
 					tree._callHook("nodeRender", ctx, false, false, true);
@@ -5159,7 +5242,20 @@
 							// See #716, #717
 							$(node.li).addClass(cn.animating); // #717
 
-							if (!$.isFunction($(node.ul)[effect.effect])) {
+							if ($.isFunction($(node.ul)[effect.effect])) {
+								tree.debug(
+									"use jquery." + effect.effect + " method"
+								);
+								$(node.ul)[effect.effect]({
+									duration: effect.duration,
+									always: function() {
+										// node.debug("fancytree-animating end: " + node.li.className);
+										$(this).removeClass(cn.animating); // #716
+										$(node.li).removeClass(cn.animating); // #717
+										callback();
+									},
+								});
+							} else {
 								// The UI toggle() effect works with the ext-wide extension,
 								// while jQuery.animate() has problems when the title span
 								// has positon: absolute.
@@ -5188,22 +5284,7 @@
 										callback();
 									}
 								);
-							} else {
-								tree.debug(
-									"use jquery." + effect.effect + " method"
-								);
-
-								$(node.ul)[effect.effect]({
-									duration: effect.duration,
-									always: function() {
-										// node.debug("fancytree-animating end: " + node.li.className);
-										$(this).removeClass(cn.animating); // #716
-										$(node.li).removeClass(cn.animating); // #717
-										callback();
-									},
-								});
 							}
-
 							return;
 						}
 					}
@@ -5300,18 +5381,6 @@
 								.find(".fancytree-title")
 								.focus();
 						}
-					} else {
-						// We cannot set KB focus to a node, so use the tree container
-						// #563, #570: IE scrolls on every call to .focus(), if the container
-						// is partially outside the viewport. So do it only, when absolutely
-						// neccessary:
-						if (
-							$(document.activeElement).closest(
-								".fancytree-container"
-							).length === 0
-						) {
-							$(tree.$container).focus();
-						}
 					}
 					if (opts.aria) {
 						// Set active descendant to node's span ID (create one, if needed)
@@ -5325,6 +5394,20 @@
 					}
 					// $(node.span).find(".fancytree-title").focus();
 					this._triggerNodeEvent("focus", ctx);
+
+					// determine if we have focus on or inside tree container
+					var hasFancytreeFocus =
+						document.activeElement === tree.$container.get(0) ||
+						$(document.activeElement, tree.$container).length >= 1;
+
+					if (!hasFancytreeFocus) {
+						// We cannot set KB focus to a node, so use the tree container
+						// #563, #570: IE scrolls on every call to .focus(), if the container
+						// is partially outside the viewport. So do it only, when absolutely
+						// necessary.
+						$(tree.$container).focus();
+					}
+
 					// if( opts.autoActivate ){
 					// 	tree.nodeSetActive(ctx, true);
 					// }
@@ -5368,7 +5451,7 @@
 				node._lastSelectIntent = flag; // Confusing use of '!'
 
 				// Nothing to do?
-				/*jshint -W018 */ if (!!node.selected === flag) {
+				if (!!node.selected === flag) {
 					if (opts.selectMode === 3 && node.partsel && !flag) {
 						// If propagation prevented selecting this node last time, we still
 						// want to allow to apply setSelected(false) now
@@ -5376,7 +5459,6 @@
 						return flag;
 					}
 				}
-				/*jshint +W018 */
 
 				if (
 					!noEvents &&
@@ -5445,6 +5527,11 @@
 						} else {
 							node.children.shift();
 						}
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"clearStatusNode"
+						);
 					}
 				}
 				function _setStatusNode(data, type) {
@@ -5458,6 +5545,11 @@
 						tree._callHook("nodeRenderTitle", firstChild);
 					} else {
 						node._setChildren([data]);
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"setStatusNode"
+						);
 						node.children[0].statusNodeType = type;
 						tree.render();
 					}
@@ -5561,6 +5653,7 @@
 				tree.$div.find(">ul.fancytree-container").empty();
 				// TODO: call destructors and remove reference loops
 				tree.rootNode.children = null;
+				tree._callHook("treeStructureChanged", ctx, "clear");
 			},
 			/** Widget was created (called only once, even it re-initialized).
 			 * @param {EventData} ctx
@@ -5571,8 +5664,9 @@
 			 */
 			treeDestroy: function(ctx) {
 				this.$div.find(">ul.fancytree-container").remove();
-				this.$source &&
+				if (this.$source) {
 					this.$source.removeClass("fancytree-helper-hidden");
+				}
 			},
 			/** Widget was (re-)initialized.
 			 * @param {EventData} ctx
@@ -5596,6 +5690,9 @@
 					}
 				});
 
+				if (opts.checkboxAutoHide) {
+					tree.$container.addClass("fancytree-checkbox-auto-hide");
+				}
 				if (opts.rtl) {
 					tree.$container
 						.attr("DIR", "RTL")
@@ -5636,7 +5733,7 @@
 					type = $container.data("type") || "html";
 					switch (type) {
 						case "html":
-							$ul = $container.find(">ul:first");
+							$ul = $container.find(">ul").first();
 							$ul.addClass(
 								"ui-fancytree-source fancytree-helper-hidden"
 							);
@@ -5685,9 +5782,17 @@
 					$.error("Not implemented");
 				}
 
+				// TODO: might be useful? Let's wait for a use case...
+				// tree._triggerTreeEvent("beforeInitLoad", null);
+
 				// Trigger fancytreeinit after nodes have been loaded
 				dfd = this.nodeLoadChildren(rootCtx, source)
 					.done(function() {
+						tree._callHook(
+							"treeStructureChanged",
+							ctx,
+							"loadChildren"
+						);
 						tree.render();
 						if (ctx.options.selectMode === 3) {
 							tree.rootNode.fixSelection3FromEndNodes();
@@ -5708,7 +5813,13 @@
 			 * @param {boolean} add
 			 * @param {FancytreeNode} node
 			 */
-			treeRegisterNode: function(ctx, add, node) {},
+			treeRegisterNode: function(ctx, add, node) {
+				ctx.tree._callHook(
+					"treeStructureChanged",
+					ctx,
+					add ? "addNode" : "removeNode"
+				);
+			},
 			/** Widget got focus.
 			 * @param {EventData} ctx
 			 * @param {boolean} [flag=true]
@@ -5735,7 +5846,9 @@
 						// #712: Use last mousedowned node ('click' event fires after focusin)
 						targetNode =
 							this._lastMousedownNode || this.getFirstChild();
-						targetNode && targetNode.setFocus();
+						if (targetNode) {
+							targetNode.setFocus();
+						}
 					}
 				}
 			},
@@ -5766,6 +5879,12 @@
 						callCreate = true;
 						callRender = true;
 						break;
+					case "checkboxAutoHide":
+						tree.$container.toggleClass(
+							"fancytree-checkbox-auto-hide",
+							!!value
+						);
+						break;
 					case "escapeTitles":
 					case "tooltip":
 						callRender = true;
@@ -5817,6 +5936,10 @@
 					tree.render(true, false); // force, not-deep
 				}
 			},
+			/** A Node was added, removed, moved, or it's visibility changed.
+			 * @param {EventData} ctx
+			 */
+			treeStructureChanged: function(ctx, type) {},
 		}
 	);
 
@@ -5857,7 +5980,7 @@
 				autoScroll: false,
 				checkbox: false,
 				clickFolderMode: 4,
-				debugLevel: null, // 0..4 (null: use global setting $.ui.fancytree.debugInfo)
+				debugLevel: null, // 0..4 (null: use global setting $.ui.fancytree.debugLevel)
 				disabled: false, // TODO: required anymore?
 				enableAspx: true,
 				escapeTitles: false,
@@ -5889,6 +6012,7 @@
 				tabindex: "0",
 				titlesTabbable: false,
 				tooltip: false,
+				treeId: null,
 				_classNames: {
 					node: "fancytree-node",
 					folder: "fancytree-folder",
@@ -5922,7 +6046,7 @@
 				this.$source =
 					this.source || this.element.data("type") === "json"
 						? this.element
-						: this.element.find(">ul:first");
+						: this.element.find(">ul").first();
 				// Subclass Fancytree instance with all enabled extensions
 				var extension,
 					extName,
@@ -5973,15 +6097,15 @@
 				//
 				if (opts.icons !== undefined) {
 					// 2015-11-16
-					if (opts.icon !== true) {
-						$.error(
-							"'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"
-						);
-					} else {
+					if (opts.icon === true) {
 						this.tree.warn(
 							"'icons' tree option is deprecated since v2.14.0: use 'icon' instead"
 						);
 						opts.icon = opts.icons;
+					} else {
+						$.error(
+							"'icons' tree option is deprecated since v2.14.0: use 'icon' only instead"
+						);
 					}
 				}
 				if (opts.iconClass !== undefined) {
@@ -6052,7 +6176,7 @@
 			},
 			/* Add mouse and kyboard handlers to the container */
 			_bind: function() {
-				var that = this,
+				var self = this,
 					opts = this.options,
 					tree = this.tree,
 					ns = tree._ns;
@@ -6163,7 +6287,7 @@
 					})
 					.on("mousedown" + ns, function(event) {
 						var et = FT.getEventTarget(event);
-						// that.tree.debug("event(" + event.type + "): node: ", et.node);
+						// self.tree.debug("event(" + event.type + "): node: ", et.node);
 						// #712: Store the clicked node, so we can use it when we get a focusin event
 						//       ('click' event fires after focusin)
 						// tree.debug("event(" + event.type + "): node: ", et.node);
@@ -6182,15 +6306,15 @@
 						var ctx,
 							et = FT.getEventTarget(event),
 							node = et.node,
-							tree = that.tree,
+							tree = self.tree,
 							prevPhase = tree.phase;
 
-						// that.tree.debug("event(" + event.type + "): node: ", node);
+						// self.tree.debug("event(" + event.type + "): node: ", node);
 						if (!node) {
 							return true; // Allow bubbling of other events
 						}
 						ctx = tree._makeHookContext(node, event);
-						// that.tree.debug("event(" + event.type + "): node: ", node);
+						// self.tree.debug("event(" + event.type + "): node: ", node);
 						try {
 							tree.phase = "userEvent";
 							switch (event.type) {
@@ -6273,7 +6397,7 @@
 		/** @lends Fancytree_Static# */
 		{
 			/** @type {string} */
-			version: "2.30.2", // Set to semver by 'grunt release'
+			version: "2.31.0", // Set to semver by 'grunt release'
 			/** @type {string} */
 			buildType: "production", // Set to 'production' by 'grunt build'
 			/** @type {int} */
@@ -6334,9 +6458,11 @@
 				return function() {
 					var args = arguments;
 					ctx = ctx || this;
+					// eslint-disable-next-line no-unused-expressions
 					invokeAsap && !timer && fn.apply(ctx, args);
 					clearTimeout(timer);
 					timer = setTimeout(function() {
+						// eslint-disable-next-line no-unused-expressions
 						invokeAsap || fn.apply(ctx, args);
 						timer = null;
 					}, timeout);
@@ -6346,16 +6472,17 @@
 			 * @param {string} msg
 			 */
 			debug: function(msg) {
-				/*jshint expr:true */
-				$.ui.fancytree.debugLevel >= 4 &&
+				if ($.ui.fancytree.debugLevel >= 4) {
 					consoleApply("log", arguments);
+				}
 			},
 			/** Write error message to console if debugLevel >= 1.
 			 * @param {string} msg
 			 */
 			error: function(msg) {
-				$.ui.fancytree.debugLevel >= 1 &&
+				if ($.ui.fancytree.debugLevel >= 1) {
 					consoleApply("error", arguments);
+				}
 			},
 			/** Convert &lt;, &gt;, &amp;, &quot;, &#39;, &#x2F; to the equivalent entities.
 			 *
@@ -6493,14 +6620,17 @@
 			 * @param {Element | jQueryObject | Event | integer | string} [el]
 			 * @returns {Fancytree} matching tree or null
 			 * @example
-			 * $.ui.fancytree.getTree();   // Get first Fancytree instance on page
+			 * $.ui.fancytree.getTree();  // Get first Fancytree instance on page
 			 * $.ui.fancytree.getTree(1);  // Get second Fancytree instance on page
-			 * $.ui.fancytree.getTree("#tree"); // Get tree for this matching element
+			 * $.ui.fancytree.getTree(event);  // Get tree for this mouse- or keyboard event
+			 * $.ui.fancytree.getTree("foo");  // Get tree for this `opts.treeId`
+			 * $.ui.fancytree.getTree("#tree");  // Get tree for this matching element
 			 *
 			 * @since 2.13
 			 */
 			getTree: function(el) {
-				var widget;
+				var widget,
+					orgEl = el;
 
 				if (el instanceof Fancytree) {
 					return el; // el already was a Fancytree
@@ -6511,7 +6641,11 @@
 				if (typeof el === "number") {
 					el = $(".fancytree-container").eq(el); // el was an integer: return nth instance
 				} else if (typeof el === "string") {
-					el = $(el).eq(0); // el was a selector: use first match
+					// `el` may be a treeId or a selector:
+					el = $("#ft-id-" + orgEl).eq(0);
+					if (!el.length) {
+						el = $(orgEl).eq(0); // el was a selector: use first match
+					}
 				} else if (el instanceof $) {
 					el = el.eq(0); // el was a jQuery object: use the first DOM element
 				} else if (el.originalEvent !== undefined) {
@@ -6572,7 +6706,7 @@
 						res = nodeOpt;
 					}
 				} else {
-					res = nodeOpt != null ? nodeOpt : treeOpt;
+					res = nodeOpt == null ? treeOpt : nodeOpt;
 				}
 				if (res == null) {
 					res = defaultValue; // no option set at all: return default
@@ -6653,13 +6787,13 @@
 
 				if (et === "click" || et === "dblclick") {
 					s.push(MOUSE_BUTTONS[event.button] + et);
-				} else {
-					if (!IGNORE_KEYCODES[which]) {
-						s.push(
-							SPECIAL_KEYCODES[which] ||
-								String.fromCharCode(which).toLowerCase()
-						);
-					}
+				} else if (et === "wheel") {
+					s.push(et);
+				} else if (!IGNORE_KEYCODES[which]) {
+					s.push(
+						SPECIAL_KEYCODES[which] ||
+							String.fromCharCode(which).toLowerCase()
+					);
 				}
 				return s.join("+");
 			},
@@ -6667,9 +6801,9 @@
 			 * @param {string} msg
 			 */
 			info: function(msg) {
-				/*jshint expr:true */
-				$.ui.fancytree.debugLevel >= 3 &&
+				if ($.ui.fancytree.debugLevel >= 3) {
 					consoleApply("info", arguments);
+				}
 			},
 			/* @deprecated: use eventToString(event) instead.
 			 */
@@ -6718,8 +6852,6 @@
 			 * @returns {NodeData[]}
 			 */
 			parseHtml: function($ul) {
-				// TODO: understand this:
-				/*jshint validthis:true */
 				var classes,
 					className,
 					extraClasses,
@@ -6735,8 +6867,8 @@
 					var allData,
 						lowerCaseAttr,
 						$li = $(this),
-						$liSpan = $li.find(">span:first", this),
-						$liA = $liSpan.length ? null : $li.find(">a:first"),
+						$liSpan = $li.find(">span", this).first(),
+						$liA = $liSpan.length ? null : $li.find(">a").first(),
 						d = { tooltip: null, data: {} };
 
 					if ($liSpan.length) {
@@ -6796,8 +6928,7 @@
 							if (allData.hasOwnProperty(lowerCaseAttr)) {
 								allData[
 									NODE_ATTR_LOWERCASE_MAP[lowerCaseAttr]
-								] =
-									allData[lowerCaseAttr];
+								] = allData[lowerCaseAttr];
 								delete allData[lowerCaseAttr];
 							}
 						}
@@ -6814,7 +6945,7 @@
 						$.extend(d.data, allData);
 					}
 					// Recursive reading of child nodes, if LI tag contains an UL tag
-					$ul = $li.find(">ul:first");
+					$ul = $li.find(">ul").first();
 					if ($ul.length) {
 						d.children = $.ui.fancytree.parseHtml($ul);
 					} else {
@@ -6856,8 +6987,9 @@
 			 * @param {string} msg
 			 */
 			warn: function(msg) {
-				$.ui.fancytree.debugLevel >= 2 &&
+				if ($.ui.fancytree.debugLevel >= 2) {
 					consoleApply("warn", arguments);
+				}
 			},
 		}
 	);
diff --git a/dist/modules/jquery.fancytree.logger.js b/dist/modules/jquery.fancytree.logger.js
index 060462c1..9d68237c 100644
--- a/dist/modules/jquery.fancytree.logger.js
+++ b/dist/modules/jquery.fancytree.logger.js
@@ -4,13 +4,13 @@
  * Miscellaneous debug extensions.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -35,22 +35,22 @@
 		FT = $.ui.fancytree,
 		PREFIX = "ft-logger: ",
 		logLine = window.console.log,
-		HOOK_NAMES = "nodeClick nodeCollapseSiblings".split(" "),
-		TREE_EVENT_NAMES = "beforeRestore blurTree create init focusTree restore".split(
+		// HOOK_NAMES = "nodeClick nodeCollapseSiblings".split(" "),
+		TREE_EVENT_NAMES = "beforeRestore beforeUpdateViewport blurTree create init focusTree restore updateViewport".split(
 			" "
 		),
-		NODE_EVENT_NAMES = "activate beforeActivate beforeExpand beforeSelect blur click collapse createNode dblclick deactivate expand enhanceTitle focus keydown keypress lazyLoad loadChildren loadError modifyChild postProcess renderNode renderTitle select".split(
+		NODE_EVENT_NAMES = "activate activateCell beforeActivate beforeExpand beforeSelect blur click collapse createNode dblclick deactivate defaultGridAction expand enhanceTitle focus keydown keypress lazyLoad loadChildren loadError modifyChild postProcess renderNode renderTitle select".split(
 			" "
 		),
 		EVENT_NAMES = TREE_EVENT_NAMES.concat(NODE_EVENT_NAMES),
-		HOOK_NAME_MAP = {},
+		// HOOK_NAME_MAP = {},
 		EVENT_NAME_MAP = {};
 
 	/*
-*/
-	for (i = 0; i < HOOK_NAMES.length; i++) {
-		HOOK_NAME_MAP[HOOK_NAMES[i]] = true;
-	}
+	 */
+	// for (i = 0; i < HOOK_NAMES.length; i++) {
+	// 	HOOK_NAME_MAP[HOOK_NAMES[i]] = true;
+	// }
 	for (i = 0; i < EVENT_NAMES.length; i++) {
 		EVENT_NAME_MAP[EVENT_NAMES[i]] = true;
 	}
@@ -63,7 +63,7 @@
 				/(opera|chrome|safari|firefox|msie)\/?\s*(\.?\d+(\.\d+)*)/i
 			);
 
-		if (m && (tem = ua.match(/version\/([\.\d]+)/i)) !== null) {
+		if (m && (tem = ua.match(/version\/([.\d]+)/i)) !== null) {
 			m[2] = tem[1];
 		}
 		m = m ? [m[1], m[2]] : [n, navigator.appVersion, "-?"];
@@ -72,7 +72,6 @@
 
 	function logEvent(event, data) {
 		var res,
-			/* jshint validthis: true */
 			self = this,
 			// logName = PREFIX + "event." + event.type,
 			opts = data.options.logger,
@@ -104,7 +103,7 @@
 		return res;
 	}
 
-	function logHook(name, self, args, extra) {
+	function logHook(name, this_, args, extra) {
 		var res,
 			ctx = args[0],
 			opts = ctx.options.logger,
@@ -115,7 +114,7 @@
 			!opts.traceHooks ||
 			(opts.traceHooks !== true && $.inArray(name, opts.traceHooks) < 0)
 		) {
-			return self._superApply.call(self, args);
+			return this_._superApply.call(this_, args);
 		}
 		if (
 			opts.timings === true ||
@@ -124,7 +123,7 @@
 			// if( name === "nodeRender" ) { logName += obj; }  // allow timing for recursive calls
 			// logName += " (" + obj + ")";
 			window.console.time(logName);
-			res = self._superApply.call(self, args);
+			res = this_._superApply.call(this_, args);
 			window.console.timeEnd(logName);
 		} else {
 			if (extra) {
@@ -134,7 +133,7 @@
 				// obj.info(logName, ctx);
 				logLine(logName, ctx);
 			}
-			res = self._superApply.call(self, args);
+			res = this_._superApply.call(this_, args);
 		}
 		return res;
 	}
@@ -144,7 +143,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "logger",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			logTarget: null, // optional redirect logging to this <div> tag
@@ -164,7 +163,9 @@
 				this.options.extensions[this.options.extensions.length - 1] !==
 				"logger"
 			) {
-				throw "Fancytree 'logger' extension must be listed as last entry.";
+				throw Error(
+					"Fancytree 'logger' extension must be listed as last entry."
+				);
 			}
 			tree.warn(
 				"Fancytree logger extension is enabled (this may be slow).",
@@ -287,9 +288,18 @@
 		treeLoad: function(ctx, source) {
 			return logHook("treeLoad", this, arguments);
 		},
-		treeSetFocus: function(ctx, flag) {
+		treeRegisterNode: function(ctx, add, node) {
+			return logHook("treeRegisterNode", this, arguments);
+		},
+		treeSetFocus: function(ctx, flag, callOpts) {
 			return logHook("treeSetFocus", this, arguments);
 		},
+		treeSetOption: function(ctx, key, value) {
+			return logHook("treeSetOption", this, arguments);
+		},
+		treeStructureChanged: function(ctx, type) {
+			return logHook("treeStructureChanged", this, arguments);
+		},
 	});
 
 	// Value returned by `require('jquery.fancytree..')`
diff --git a/dist/modules/jquery.fancytree.menu.js b/dist/modules/jquery.fancytree.menu.js
index e3dbe55d..e32b2b6a 100644
--- a/dist/modules/jquery.fancytree.menu.js
+++ b/dist/modules/jquery.fancytree.menu.js
@@ -6,13 +6,13 @@
  *
  * @see http://api.jqueryui.com/menu/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -32,7 +32,7 @@
 
 	$.ui.fancytree.registerExtension({
 		name: "menu",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			enable: true,
@@ -66,21 +66,19 @@
 
 			//        tree.$container[0].oncontextmenu = function() {return false;};
 			// Replace the standard browser context menu with out own
-			tree.$container.delegate(
-				"span.fancytree-node",
-				"contextmenu",
-				function(event) {
-					var node = $.ui.fancytree.getNode(event),
-						ctx = {
-							node: node,
-							tree: node.tree,
-							originalEvent: event,
-							options: tree.options,
-						};
-					tree.ext.menu._openMenu(ctx);
-					return false;
-				}
-			);
+			tree.$container.on("contextmenu", "span.fancytree-node", function(
+				event
+			) {
+				var node = $.ui.fancytree.getNode(event),
+					ctx = {
+						node: node,
+						tree: node.tree,
+						originalEvent: event,
+						options: tree.options,
+					};
+				tree.ext.menu._openMenu(ctx);
+				return false;
+			});
 
 			// Use jquery.ui.menu
 			$(opts.menu.selector)
diff --git a/dist/modules/jquery.fancytree.multi.js b/dist/modules/jquery.fancytree.multi.js
index fc008637..2beb5f92 100644
--- a/dist/modules/jquery.fancytree.multi.js
+++ b/dist/modules/jquery.fancytree.multi.js
@@ -4,13 +4,13 @@
  * Allow multiple selection of nodes  by mouse or keyboard.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -39,7 +39,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "multi",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			allowNoSelect: false, //
diff --git a/dist/modules/jquery.fancytree.persist.js b/dist/modules/jquery.fancytree.persist.js
index 92d69cd6..0194376e 100644
--- a/dist/modules/jquery.fancytree.persist.js
+++ b/dist/modules/jquery.fancytree.persist.js
@@ -6,13 +6,13 @@
  *
  * @depends: js-cookie or jquery-cookie
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -88,8 +88,8 @@
 	}
 
 	/* Recursively load lazy nodes
- * @param {string} mode 'load', 'expand', false
- */
+	 * @param {string} mode 'load', 'expand', false
+	 */
 	function _loadLazyNodes(tree, local, keyList, mode, dfd) {
 		var i,
 			key,
@@ -212,7 +212,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "persist",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			cookieDelimiter: "~",
diff --git a/dist/modules/jquery.fancytree.table.js b/dist/modules/jquery.fancytree.table.js
index 516f9ddd..bbb498b9 100644
--- a/dist/modules/jquery.fancytree.table.js
+++ b/dist/modules/jquery.fancytree.table.js
@@ -4,13 +4,13 @@
  * Render tree as table (aka 'tree grid', 'table tree').
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -91,24 +91,14 @@
 		return prev;
 	}
 
-	/* Render callback for 'wide' mode. */
-	// function _renderStatusNodeWide(event, data) {
-	// 	var node = data.node,
-	// 		nodeColumnIdx = data.options.table.nodeColumnIdx,
-	// 		$tdList = $(node.tr).find(">td");
-
-	// 	$tdList.eq(nodeColumnIdx).attr("colspan", data.tree.columnCount);
-	// 	$tdList.not(":eq(" + nodeColumnIdx + ")").remove();
-	// }
-
 	$.ui.fancytree.registerExtension({
 		name: "table",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			checkboxColumnIdx: null, // render the checkboxes into the this column index (default: nodeColumnIdx)
-			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
 			indentation: 16, // indent every node level by 16px
+			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
 			nodeColumnIdx: 0, // render node expander, icon, and title to this column (default: #0)
 		},
 		// Overide virtual methods for this extension.
@@ -125,15 +115,15 @@
 				$table = tree.widget.element;
 
 			if (tableOpts.customStatus != null) {
-				if (opts.renderStatusColumns != null) {
-					$.error(
-						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
-					);
-				} else {
+				if (opts.renderStatusColumns == null) {
 					tree.warn(
 						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."
 					);
 					opts.renderStatusColumns = tableOpts.customStatus;
+				} else {
+					$.error(
+						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
+					);
 				}
 			}
 			if (opts.renderStatusColumns) {
@@ -160,9 +150,11 @@
 
 			// Prepare row templates:
 			// Determine column count from table header if any
-			tree.columnCount = $("thead >tr:last >th", $table).length;
+			tree.columnCount = $("thead >tr", $table)
+				.last()
+				.find(">th", $table).length;
 			// Read TR templates from tbody if any
-			$row = $tbody.children("tr:first");
+			$row = $tbody.children("tr").first();
 			if ($row.length) {
 				n = $row.children("td").length;
 				if (tree.columnCount && n !== tree.columnCount) {
@@ -198,7 +190,7 @@
 			tree.rowFragment.appendChild($row.get(0));
 
 			// // If tbody contains a second row, use this as status node template
-			// $row = $tbody.children("tr:eq(1)");
+			// $row = $tbody.children("tr").eq(1);
 			// if( $row.length === 0 ) {
 			// 	tree.statusRowFragment = tree.rowFragment;
 			// } else {
@@ -279,7 +271,15 @@
 				if (node.tr && force) {
 					this.nodeRemoveMarkup(ctx);
 				}
-				if (!node.tr) {
+				if (node.tr) {
+					if (force) {
+						// Set icon, link, and title (normally this is only required on initial render)
+						this.nodeRenderTitle(ctx); // triggers renderColumns()
+					} else {
+						// Update element classes according to node state
+						this.nodeRenderStatus(ctx);
+					}
+				} else {
 					if (ctx.hasCollapsedParents && !deep) {
 						// #166: we assume that the parent will be (recursively) rendered
 						// later anyway.
@@ -303,15 +303,15 @@
 						newRow.style.display = "none";
 						//					newRow.style.color = "red";
 					}
-					if (!prevNode.tr) {
+					if (prevNode.tr) {
+						insertSiblingAfter(prevNode.tr, newRow);
+					} else {
 						_assert(
 							!prevNode.parent,
 							"prev. row must have a tr, or be system root"
 						);
 						// tree.tbody.appendChild(newRow);
 						insertFirstChild(tree.tbody, newRow); // #675
-					} else {
-						insertSiblingAfter(prevNode.tr, newRow);
 					}
 					node.tr = newRow;
 					if (node.key && opts.generateIds) {
@@ -329,14 +329,6 @@
 					if (opts.createNode) {
 						opts.createNode.call(tree, { type: "createNode" }, ctx);
 					}
-				} else {
-					if (force) {
-						// Set icon, link, and title (normally this is only required on initial render)
-						this.nodeRenderTitle(ctx); // triggers renderColumns()
-					} else {
-						// Update element classes according to node state
-						this.nodeRenderStatus(ctx);
-					}
 				}
 			}
 			// Allow tweaking after node state was rendered
@@ -417,13 +409,13 @@
 				if (opts.renderStatusColumns) {
 					// Let user code write column content
 					opts.renderStatusColumns.call(
-						ctx.tree,
+						tree,
 						{ type: "renderStatusColumns" },
 						ctx
 					);
 				} else if (opts.table.mergeStatusColumns && node.isTopLevel()) {
-					var $tdList = $(node.tr).find(">td");
-					$tdList
+					$(node.tr)
+						.find(">td")
 						.eq(0)
 						.prop("colspan", tree.columnCount)
 						.text(node.title)
@@ -432,11 +424,7 @@
 						.remove();
 				} // else: default rendering for status node: leave other cells empty
 			} else if (opts.renderColumns) {
-				opts.renderColumns.call(
-					ctx.tree,
-					{ type: "renderColumns" },
-					ctx
-				);
+				opts.renderColumns.call(tree, { type: "renderColumns" }, ctx);
 			}
 			return res;
 		},
@@ -541,7 +529,9 @@
 		},
 		treeDestroy: function(ctx) {
 			this.$container.find("tbody").empty();
-			this.$source && this.$source.removeClass("fancytree-helper-hidden");
+			if (this.$source) {
+				this.$source.removeClass("fancytree-helper-hidden");
+			}
 			return this._superApply(arguments);
 		},
 		/*,
diff --git a/dist/modules/jquery.fancytree.themeroller.js b/dist/modules/jquery.fancytree.themeroller.js
index 429e584b..62c98f90 100644
--- a/dist/modules/jquery.fancytree.themeroller.js
+++ b/dist/modules/jquery.fancytree.themeroller.js
@@ -6,13 +6,13 @@
  *
  * @see http://jqueryui.com/themeroller/
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -35,7 +35,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "themeroller",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			activeClass: "ui-state-active", // Class added to active node
@@ -61,9 +61,7 @@
 				$el.addClass("ui-widget ui-widget-content ui-corner-all");
 			}
 
-			$el.delegate(".fancytree-node", "mouseenter mouseleave", function(
-				event
-			) {
+			$el.on("mouseenter mouseleave", ".fancytree-node", function(event) {
 				var node = $.ui.fancytree.getNode(event.target),
 					flag = event.type === "mouseenter";
 
diff --git a/dist/modules/jquery.fancytree.wide.js b/dist/modules/jquery.fancytree.wide.js
index 587df0c9..b3ccf872 100644
--- a/dist/modules/jquery.fancytree.wide.js
+++ b/dist/modules/jquery.fancytree.wide.js
@@ -3,13 +3,13 @@
  * Support for 100% wide selection bars.
  * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  *
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
  */
 
 (function(factory) {
@@ -139,7 +139,7 @@
 	 */
 	$.ui.fancytree.registerExtension({
 		name: "wide",
-		version: "2.30.2",
+		version: "2.31.0",
 		// Default options for this extension.
 		options: {
 			iconWidth: null, // Adjust this if @fancy-icon-width != "16px"
diff --git a/dist/skin-awesome/ui.fancytree.css b/dist/skin-awesome/ui.fancytree.css
index 681a1335..6687f04d 100644
--- a/dist/skin-awesome/ui.fancytree.css
+++ b/dist/skin-awesome/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -178,7 +178,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -192,6 +192,19 @@ span.fancytree-checkbox {
   opacity: 0.4;
   filter: alpha(opacity=40);
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -383,7 +396,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-awesome/ui.fancytree.min.css b/dist/skin-awesome/ui.fancytree.min.css
index acd193e1..3c629bf1 100644
--- a/dist/skin-awesome/ui.fancytree.min.css
+++ b/dist/skin-awesome/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}img.fancytree-icon,span.fancytree-checkbox,span.fancytree-icon{margin-left:3px}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-awesome/vline.gif);background-position:0 0}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading,ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:10pt;height:10pt;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:0 0}span.fancytree-custom-icon{width:10pt;height:10pt;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:10pt;height:10pt;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:10pt}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:10pt;padding:0 3px;margin:0 0 0 3px;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:20pt;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:40pt}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-awesome/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:.3em 0 0 1em;margin:0}span.fancytree-title{border:1px solid transparent;border-radius:0}span.fancytree-focused span.fancytree-title{outline:#000 dotted 1px}span.fancytree-active span.fancytree-title{background-color:#D4D4D4}.fancytree-treefocus span.fancytree-active span.fancytree-title{color:#fff;background-color:#3875D7}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99DEFD}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-columnview tbody tr td{border:1px solid gray}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 10pt;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-awesome/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:10pt;height:10pt;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:10pt;height:10pt;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:10pt;height:10pt;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{margin-top:0}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:none}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:10pt}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:10pt;padding:0 3px 0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:20pt;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:40pt}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-awesome/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:.3em 0 0 1em;margin:0}span.fancytree-title{border:1px solid transparent;border-radius:0}span.fancytree-focused span.fancytree-title{outline:1px dotted #000}span.fancytree-active span.fancytree-title{background-color:#d4d4d4}.fancytree-treefocus span.fancytree-active span.fancytree-title{color:#fff;background-color:#3875d7}table.fancytree-ext-table{border-collapse:collapse}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99defd}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-columnview tbody tr td{border:1px solid gray}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
diff --git a/dist/skin-bootstrap-n/ui.fancytree.css b/dist/skin-bootstrap-n/ui.fancytree.css
index 1713688e..ee3d120c 100644
--- a/dist/skin-bootstrap-n/ui.fancytree.css
+++ b/dist/skin-bootstrap-n/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -178,7 +178,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -192,6 +192,19 @@ span.fancytree-checkbox {
   opacity: 0.4;
   filter: alpha(opacity=40);
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -383,7 +396,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-bootstrap-n/ui.fancytree.min.css b/dist/skin-bootstrap-n/ui.fancytree.min.css
index c7194b44..4ff4ec07 100644
--- a/dist/skin-bootstrap-n/ui.fancytree.min.css
+++ b/dist/skin-bootstrap-n/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}img.fancytree-icon,span.fancytree-checkbox,span.fancytree-icon{margin-left:.5em}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-bootstrap-n/vline.gif);background-position:0 0}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading,ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:1em;height:1em;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:0 0}span.fancytree-custom-icon{width:1em;height:1em;display:inline-block;margin-left:.5em;background-position:0 0}img.fancytree-icon{width:1em;height:1em;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:1em}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:1em;padding:0 3px;margin:0 0 0 .5em;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:2em;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:4em}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-bootstrap-n/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#CBE8F6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:0 0 0 1.5em;margin:0}.fancytree-container:focus{outline:0}.fancytree-container span.fancytree-statusnode-error span.fancytree-expander{color:red}span.fancytree-node{border:1px solid transparent;border-radius:3px;padding-left:8px}span.fancytree-title{border-radius:3px}span.fancytree-node.fancytree-selected{background-color:#80c780;border-color:#80c780}span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#80c780}span.fancytree-node.fancytree-active{background-color:#6aa3d5}.fancytree-container.fancytree-treefocus span.fancytree-node:hover{background-color:#e9f2f9}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-focused{border-color:#428bca}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-selected,.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#5cb85c}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active{background-color:#428bca;border-color:#428bca}table.fancytree-ext-table tbody tr td{border:1px solid #eee}table.fancytree-ext-table tbody tr.fancytree-selected,table.fancytree-ext-table tbody tr.fancytree-selected span.fancytree-node,table.fancytree-ext-table tbody tr.fancytree-selected span.fancytree-title{background-color:#80c780}table.fancytree-ext-table tbody tr.fancytree-active,table.fancytree-ext-table tbody tr.fancytree-active span.fancytree-node{background-color:#6aa3d5}table.fancytree-ext-table.fancytree-treefocus tbody tr:hover{background-color:#e9f2f9}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-focused span.fancytree-title{outline:#428bca dotted 1px}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected,table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected span.fancytree-node,table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected span.fancytree-title{background-color:#5cb85c}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active,table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active span.fancytree-node{background-color:#428bca}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-bootstrap-n/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:1em;height:1em;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:1em;height:1em;display:inline-block;margin-left:.5em;background-position:0 0}img.fancytree-icon{width:1em;height:1em;margin-left:.5em;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{margin-top:0}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:.5em}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:.5em}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:none}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:1em}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:1em;padding:0 3px 0 3px;margin:0 0 0 .5em;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:2em;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:4em}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-bootstrap-n/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:0 0 0 1.5em;margin:0}.fancytree-container:focus{outline:0}.fancytree-container span.fancytree-statusnode-error span.fancytree-expander{color:red}span.fancytree-node{border:1px solid transparent;border-radius:3px;padding-left:8px}span.fancytree-title{border-radius:3px}span.fancytree-node.fancytree-selected{background-color:#80c780;border-color:#80c780}span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#80c780}span.fancytree-node.fancytree-active{background-color:#6aa3d5}.fancytree-container.fancytree-treefocus span.fancytree-node:hover{background-color:#e9f2f9}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-focused{border-color:#428bca}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-selected{background-color:#5cb85c}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#5cb85c}.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active{background-color:#428bca;border-color:#428bca}table.fancytree-ext-table tbody tr td{border:1px solid #eee}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#80c780}table.fancytree-ext-table tbody tr.fancytree-selected span.fancytree-node{background-color:#80c780}table.fancytree-ext-table tbody tr.fancytree-selected span.fancytree-title{background-color:#80c780}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#6aa3d5}table.fancytree-ext-table tbody tr.fancytree-active span.fancytree-node{background-color:#6aa3d5}table.fancytree-ext-table.fancytree-treefocus tbody tr:hover{background-color:#e9f2f9}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-focused span.fancytree-title{outline:1px dotted #428bca}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected{background-color:#5cb85c}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected span.fancytree-node{background-color:#5cb85c}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected span.fancytree-title{background-color:#5cb85c}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active{background-color:#428bca}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active span.fancytree-node{background-color:#428bca}
\ No newline at end of file
diff --git a/dist/skin-bootstrap/ui.fancytree.css b/dist/skin-bootstrap/ui.fancytree.css
index 2ebe7d05..3d2d1f43 100644
--- a/dist/skin-bootstrap/ui.fancytree.css
+++ b/dist/skin-bootstrap/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -178,7 +178,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -192,6 +192,19 @@ span.fancytree-checkbox {
   opacity: 0.4;
   filter: alpha(opacity=40);
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -383,7 +396,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-bootstrap/ui.fancytree.min.css b/dist/skin-bootstrap/ui.fancytree.min.css
index db7bfdf7..77c6cc39 100644
--- a/dist/skin-bootstrap/ui.fancytree.min.css
+++ b/dist/skin-bootstrap/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */table.fancytree-ext-table,ul.fancytree-container{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif}.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:#333}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-size:14px;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}img.fancytree-icon,span.fancytree-checkbox,span.fancytree-icon{margin-left:.5em}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-bootstrap/vline.gif);background-position:0 0}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading,ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:1em;height:1em;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:2px}span.fancytree-custom-icon{width:1em;height:1em;display:inline-block;margin-left:.5em;background-position:0 0}img.fancytree-icon{width:1em;height:1em;margin-top:2px;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{margin-top:0}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}span.fancytree-node{display:inherit;width:100%;margin-top:0;min-height:1em}span.fancytree-title{color:#333;cursor:pointer;display:inline-block;vertical-align:top;min-height:1em;padding:0 3px;margin:0 0 0 .5em;border:1px solid transparent;-webkit-border-radius:3px;-moz-border-radius:3px;-ms-border-radius:3px;-o-border-radius:3px;border-radius:3px}span.fancytree-node.fancytree-error span.fancytree-title{color:#d9534f}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:2em;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:4em}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-bootstrap/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-size:14px;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:#333}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:#d9534f}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#CBE8F6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:#333;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:#333;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:0 0 0 1.5em;margin:0}.fancytree-container:focus{outline:0}.fancytree-container .fancytree-active span.fancytree-title input,.fancytree-container.fancytree-colorize-selected .fancytree-selected span.fancytree-title input{color:#000}.fancytree-container span.fancytree-statusnode-error span.fancytree-expander,div.fancytree-drag-helper.fancytree-drop-reject,div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-title{color:#d9534f}span.fancytree-node.fancytree-drag-source{background-color:#5bc0de!important}span.fancytree-node.fancytree-drop-target.fancytree-drop-reject span.fancytree.title{background-color:#d9534f!important}span.fancytree-expander{color:#999}.fancytree-expanded span.fancytree-expander{color:#333}span.fancytree-node span.fancytree-expander:hover{color:#0ff}.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-selected,.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#80c780;border-color:#80c780;color:#fff}.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-selected:hover span.fancytree-title{background-color:#6ec06e}.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-active.fancytree-selected span.fancytree-title{color:#80c780}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-title:hover{background-color:#f5f5f5}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#5cb85c}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-node.fancytree-selected:hover span.fancytree-title{background-color:#4cae4c}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-node.fancytree-active.fancytree-selected span.fancytree-title{color:#5cb85c}.fancytree-plain.fancytree-container.fancytree-ext-wide span.fancytree-node.fancytree-active,table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-selected>td,table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-selected>td span.fancytree-title,table.fancytree-ext-table.fancytree-container>tbody>tr.fancytree-active>td,table.fancytree-ext-table.fancytree-container>tbody>tr.fancytree-active>td span.fancytree-title{color:#fff}.fancytree-plain.fancytree-container span.fancytree-node{margin-top:2px;margin-bottom:2px}.fancytree-plain.fancytree-container span.fancytree-title{border:1px solid transparent;border-radius:3px;outline-radius:3px}.fancytree-plain.fancytree-container span.fancytree-title:hover{background-color:#f5f5f5}.fancytree-plain.fancytree-container span.fancytree-node.fancytree-active span.fancytree-title{background-color:#5094ce;color:#fff}.fancytree-plain.fancytree-container span.fancytree-node.fancytree-active:hover span.fancytree-title{background-color:#3c87c8}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-focused span.fancytree-title{border-color:#337ab7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active span.fancytree-title{background-color:#337ab7;border-color:#337ab7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active:hover span.fancytree-title{background-color:#2e6da4}table.fancytree-ext-table>tbody>tr>td span.fancytree-title{border:none}table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-selected>td{background-color:#80c780}table.fancytree-ext-table.fancytree-colorize-selected.fancytree-treefocus>tbody>tr.fancytree-selected>td{background-color:#5cb85c}table.fancytree-ext-table.fancytree-colorize-selected.table-hover>tbody>tr.fancytree-selected:hover>td{background-color:#6ec06e}table.fancytree-ext-table.fancytree-colorize-selected.fancytree-treefocus.table-hover>tbody>tr.fancytree-selected:hover>td{background-color:#4cae4c}table.fancytree-ext-table.fancytree-colorize-selected.fancytree-treefocus.table-hover>tbody>tr.fancytree-selected.fancytree-active:hover>td,table.fancytree-ext-table.fancytree-colorize-selected.table-hover>tbody>tr.fancytree-selected.fancytree-active:hover>td{background-color:#2e6da4}table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-active.fancytree-selected{outline-offset:-2px;outline:#80c780 solid 2px}table.fancytree-ext-table.fancytree-container>tbody>tr.fancytree-active>td{background-color:#5094ce}table.fancytree-ext-table.fancytree-treefocus.fancytree-container>tbody>tr.fancytree-focused span.fancytree-title{outline:#000 dotted 1px}table.fancytree-ext-table.fancytree-treefocus.fancytree-container>tbody>tr.fancytree-active>td{background-color:#337ab7}table.fancytree-ext-table.fancytree-treefocus.fancytree-container.table-hover>tbody>tr.fancytree-active:hover>td{background-color:#2e6da4}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:#333}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-bootstrap/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:1em;height:1em;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:2px}span.fancytree-custom-icon{width:1em;height:1em;display:inline-block;margin-left:.5em;background-position:0 0}img.fancytree-icon{width:1em;height:1em;margin-left:.5em;margin-top:2px;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{margin-top:0}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:.5em}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:.5em}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:none}span.fancytree-node{display:inherit;width:100%;margin-top:0;min-height:1em}span.fancytree-title{color:#333;cursor:pointer;display:inline-block;vertical-align:top;min-height:1em;padding:0 3px 0 3px;margin:0 0 0 .5em;border:1px solid transparent;-webkit-border-radius:3px;-moz-border-radius:3px;-ms-border-radius:3px;-o-border-radius:3px;border-radius:3px}span.fancytree-node.fancytree-error span.fancytree-title{color:#d9534f}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:2em;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:4em}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-bootstrap/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:#333}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:#d9534f}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:#333;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:#333;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:0 0 0 1.5em;margin:0}.fancytree-container:focus{outline:0}.fancytree-container .fancytree-active span.fancytree-title input,.fancytree-container.fancytree-colorize-selected .fancytree-selected span.fancytree-title input{color:#000}.fancytree-container span.fancytree-statusnode-error span.fancytree-expander{color:#d9534f}div.fancytree-drag-helper.fancytree-drop-reject,div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-title{color:#d9534f}span.fancytree-node.fancytree-drag-source{background-color:#5bc0de!important}span.fancytree-node.fancytree-drop-target.fancytree-drop-reject span.fancytree.title{background-color:#d9534f!important}span.fancytree-expander{color:#999}.fancytree-expanded span.fancytree-expander{color:#333}span.fancytree-node span.fancytree-expander:hover{color:#0ff}.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-selected,.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#80c780;border-color:#80c780;color:#fff}.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-selected:hover span.fancytree-title{background-color:#6ec06e}.fancytree-plain.fancytree-colorize-selected span.fancytree-node.fancytree-active.fancytree-selected span.fancytree-title{color:#80c780}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-title:hover{background-color:#f5f5f5}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-node.fancytree-selected span.fancytree-title{background-color:#5cb85c}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-node.fancytree-selected:hover span.fancytree-title{background-color:#4cae4c}.fancytree-plain.fancytree-colorize-selected.fancytree-treefocus span.fancytree-node.fancytree-active.fancytree-selected span.fancytree-title{color:#5cb85c}.fancytree-plain.fancytree-container span.fancytree-node{margin-top:2px;margin-bottom:2px}.fancytree-plain.fancytree-container span.fancytree-title{border:1px solid transparent;border-radius:3px;outline-radius:3px}.fancytree-plain.fancytree-container span.fancytree-title:hover{background-color:#f5f5f5}.fancytree-plain.fancytree-container span.fancytree-node.fancytree-active span.fancytree-title{background-color:#5094ce;color:#fff}.fancytree-plain.fancytree-container span.fancytree-node.fancytree-active:hover span.fancytree-title{background-color:#3c87c8}.fancytree-plain.fancytree-container.fancytree-ext-wide span.fancytree-node.fancytree-active{color:#fff}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-focused span.fancytree-title{border-color:#337ab7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active span.fancytree-title{background-color:#337ab7;border-color:#337ab7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active:hover span.fancytree-title{background-color:#2e6da4}table.fancytree-ext-table>tbody>tr>td span.fancytree-title{border:none}table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-selected>td{background-color:#80c780}table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-selected>td,table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-selected>td span.fancytree-title{color:#fff}table.fancytree-ext-table.fancytree-colorize-selected.fancytree-treefocus>tbody>tr.fancytree-selected>td{background-color:#5cb85c}table.fancytree-ext-table.fancytree-colorize-selected.table-hover>tbody>tr.fancytree-selected:hover>td{background-color:#6ec06e}table.fancytree-ext-table.fancytree-colorize-selected.fancytree-treefocus.table-hover>tbody>tr.fancytree-selected:hover>td{background-color:#4cae4c}table.fancytree-ext-table.fancytree-colorize-selected.fancytree-treefocus.table-hover>tbody>tr.fancytree-selected.fancytree-active:hover>td,table.fancytree-ext-table.fancytree-colorize-selected.table-hover>tbody>tr.fancytree-selected.fancytree-active:hover>td{background-color:#2e6da4}table.fancytree-ext-table.fancytree-colorize-selected>tbody>tr.fancytree-active.fancytree-selected{outline-width:2px;outline-offset:-2px;outline-style:solid;outline-color:#80c780}table.fancytree-ext-table.fancytree-container>tbody>tr.fancytree-active>td{background-color:#5094ce}table.fancytree-ext-table.fancytree-container>tbody>tr.fancytree-active>td,table.fancytree-ext-table.fancytree-container>tbody>tr.fancytree-active>td span.fancytree-title{color:#fff}table.fancytree-ext-table.fancytree-treefocus.fancytree-container>tbody>tr.fancytree-focused span.fancytree-title{outline:1px dotted #000}table.fancytree-ext-table.fancytree-treefocus.fancytree-container>tbody>tr.fancytree-active>td{background-color:#337ab7}table.fancytree-ext-table.fancytree-treefocus.fancytree-container.table-hover>tbody>tr.fancytree-active:hover>td{background-color:#2e6da4}
\ No newline at end of file
diff --git a/dist/skin-common.less b/dist/skin-common.less
index d3277f60..0e4e9538 100644
--- a/dist/skin-common.less
+++ b/dist/skin-common.less
@@ -3,26 +3,26 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 
 // Variables (defaults, may be overwritten by the including .less files)
-@fancy-use-sprites: true;      // false: suppress all background images (i.e. icons)
+@fancy-use-sprites: true; // false: suppress all background images (i.e. icons)
 // @fancy-hide-connectors: true;  // false: show vertical connector lines
 
 @fancy-level-indent: 16px;
-@fancy-line-height: 16px;      // height of a nodes selection bar including borders
-@fancy-node-v-spacing: 1px;    // gap between two node borders
+@fancy-line-height: 16px; // height of a nodes selection bar including borders
+@fancy-node-v-spacing: 1px; // gap between two node borders
 @fancy-icon-width: 16px;
 @fancy-icon-height: 16px;
-@fancy-icon-spacing: 3px;      // margin between icon/icon or icon/title
-@fancy-icon-ofs-top: 0px;      // extra vertical offset for expander, checkbox and icon
-@fancy-title-ofs-top: 0px;     // extra vertical offset for title
+@fancy-icon-spacing: 3px; // margin between icon/icon or icon/title
+@fancy-icon-ofs-top: 0px; // extra vertical offset for expander, checkbox and icon
+@fancy-title-ofs-top: 0px; // extra vertical offset for title
 @fancy-node-border-width: 1px;
 @fancy-node-border-radius: 0px;
 @fancy-node-outline-width: 1px;
@@ -54,10 +54,10 @@
 //------------------------------------------------------------------------------
 // Mixins
 //------------------------------------------------------------------------------
-.setBgPos(@x, @y, @cond:true) when (@cond){
+.setBgPos(@x, @y, @cond:true) when (@cond) {
 	background-position: (@x * -@fancy-icon-width) (@y * -@fancy-icon-height);
 }
-.clearBgImage(@cond:true) when (@cond){
+.clearBgImage(@cond:true) when (@cond) {
 	background-image: none;
 }
 .setBgImageUrl(@url) when (@fancy-use-sprites) and not (@fancy-inline-sprites) {
@@ -66,31 +66,57 @@
 .setBgImageUrl(@url) when (@fancy-use-sprites) and (@fancy-inline-sprites) {
 	background-image: data-uri("@{fancy-image-prefix}@{url}");
 }
-.useSprite(@x, @y) when (@fancy-use-sprites){
+.useSprite(@x, @y) when (@fancy-use-sprites) {
 	.setBgPos(@x, @y);
 }
 .rounded-corners(@radius) {
-  -webkit-border-radius: @radius;
-  -moz-border-radius: @radius;
-  -ms-border-radius: @radius;
-  -o-border-radius: @radius;
-  border-radius: @radius;
+	-webkit-border-radius: @radius;
+	-moz-border-radius: @radius;
+	-ms-border-radius: @radius;
+	-o-border-radius: @radius;
+	border-radius: @radius;
 }
-.spanStyleMixin(@color, @bgcolor, @bordercolor){
+.spanStyleMixin(@color, @bgcolor, @bordercolor) {
 	border-color: @bordercolor;
 	background: @bgcolor;
 	color: @color;
 }
-.spanStyleMixin(@color, @bgcolor, @bordercolor, @startColor, @stopColor){
+.spanStyleMixin(@color, @bgcolor, @bordercolor, @startColor, @stopColor) {
 	.spanStyleMixin(@color, @bgcolor, @bordercolor);
 	// @c-start: argb(@startColor);
 	// @c-end: argb(@stopColor);
-	background: -moz-linear-gradient(top, @startColor 0%, @stopColor 100%); // FF3.6+
-	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,@startColor), color-stop(100%,@stopColor)); // Chrome,Safari4+
-	background: -webkit-linear-gradient(top, @startColor 0%,@stopColor 100%); // Chrome10+,Safari5.1+
-	background: -o-linear-gradient(top, @startColor 0%,@stopColor 100%); // Opera 11.10+
-	background: -ms-linear-gradient(top, @startColor 0%,@stopColor 100%); // IE10+
-	background: linear-gradient(to bottom, @startColor 0%,@stopColor 100%); // W3C
+	background: -moz-linear-gradient(
+		top,
+		@startColor 0%,
+		@stopColor 100%
+	); // FF3.6+
+	background: -webkit-gradient(
+		linear,
+		left top,
+		left bottom,
+		color-stop(0%, @startColor),
+		color-stop(100%, @stopColor)
+	); // Chrome,Safari4+
+	background: -webkit-linear-gradient(
+		top,
+		@startColor 0%,
+		@stopColor 100%
+	); // Chrome10+,Safari5.1+
+	background: -o-linear-gradient(
+		top,
+		@startColor 0%,
+		@stopColor 100%
+	); // Opera 11.10+
+	background: -ms-linear-gradient(
+		top,
+		@startColor 0%,
+		@stopColor 100%
+	); // IE10+
+	background: linear-gradient(
+		to bottom,
+		@startColor 0%,
+		@stopColor 100%
+	); // W3C
 	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='@{startColor}', endColorstr='@{stopColor}',GradientType=0 ); // IE6-9
 }
 
@@ -102,7 +128,8 @@
 .fancytree-helper-hidden {
 	display: none;
 }
-.fancytree-helper-indeterminate-cb {  // tri-state checkbox
+.fancytree-helper-indeterminate-cb {
+	// tri-state checkbox
 	color: #777;
 }
 .fancytree-helper-disabled {
@@ -111,31 +138,30 @@
 
 /* Helper to allow spinning loader icon with glyph-, ligature-, and SVG-icons. */
 .fancytree-helper-spin {
-    -webkit-animation: spin 1000ms infinite linear;
-    animation: spin 1000ms infinite linear;
+	-webkit-animation: spin 1000ms infinite linear;
+	animation: spin 1000ms infinite linear;
 }
 @-webkit-keyframes spin {
-    0% {
-        -webkit-transform: rotate(0deg);
-        transform: rotate(0deg);
-    }
-    100% {
-        -webkit-transform: rotate(359deg);
-        transform: rotate(359deg);
-    }
+	0% {
+		-webkit-transform: rotate(0deg);
+		transform: rotate(0deg);
+	}
+	100% {
+		-webkit-transform: rotate(359deg);
+		transform: rotate(359deg);
+	}
 }
 @keyframes spin {
-    0% {
-        -webkit-transform: rotate(0deg);
-        transform: rotate(0deg);
-    }
-    100% {
-        -webkit-transform: rotate(359deg);
-        transform: rotate(359deg);
-    }
+	0% {
+		-webkit-transform: rotate(0deg);
+		transform: rotate(0deg);
+	}
+	100% {
+		-webkit-transform: rotate(359deg);
+		transform: rotate(359deg);
+	}
 }
 
-
 /*------------------------------------------------------------------------------
  * Container and UL / LI
  *----------------------------------------------------------------------------*/
@@ -149,14 +175,15 @@ ul.fancytree-container {
 	background-color: white;
 	border: 1px dotted gray;
 	// overflow: auto;  // ext-dnd5: otherwise this is always the scroll parent
-//	height: 100%; // DT issue 263, 470
+	//	height: 100%; // DT issue 263, 470
 	min-height: 0%; // #192
 	position: relative; // #235
 	ul {
 		padding: 0 0 0 @fancy-level-indent;
 		margin: 0;
 	}
-	ul>li:before { // #538
+	ul > li:before {
+		// #538
 		content: none;
 	}
 	li {
@@ -170,10 +197,10 @@ ul.fancytree-container {
 		background-color: transparent;
 		.setBgPos(0, 0);
 		background-repeat: repeat-y;
-		background-image: none;  // no v-lines
+		background-image: none; // no v-lines
 
 		margin: 0;
-//		padding: 1px 0 0 0; // issue #246
+		//		padding: 1px 0 0 0; // issue #246
 	}
 	// Suppress lines for last child node
 	li.fancytree-lastsib {
@@ -184,7 +211,7 @@ ul.fancytree-container {
 // Style, when control is disabled
 .ui-fancytree-disabled ul.fancytree-container {
 	opacity: 0.5;
-//	filter: alpha(opacity=50); // Yields a css warning
+	//	filter: alpha(opacity=50); // Yields a css warning
 	background-color: silver;
 }
 
@@ -222,8 +249,8 @@ span.fancytree-drag-helper-img,
 #fancytree-drop-marker {
 	width: @fancy-icon-width;
 	height: @fancy-icon-height;
-//	display: -moz-inline-box; // @ FF 1+2 removed for issue 221
-//	-moz-box-align: start; /* issue 221 */
+	//	display: -moz-inline-box; // @ FF 1+2 removed for issue 221
+	//	-moz-box-align: start; /* issue 221 */
 	display: inline-block; // Required to make a span sizeable
 	vertical-align: top;
 	background-repeat: no-repeat;
@@ -256,7 +283,6 @@ img.fancytree-icon {
 	border-style: none;
 }
 
-
 /*------------------------------------------------------------------------------
  * Expander icon
  *
@@ -303,25 +329,29 @@ span.fancytree-expander {
 
 // --- Collapsed
 
-.fancytree-exp-c span.fancytree-expander { // Collapsed, not delayed, not last sibling
+.fancytree-exp-c span.fancytree-expander {
+	// Collapsed, not delayed, not last sibling
 	.useSprite(0, 5);
 }
 .fancytree-exp-c span.fancytree-expander:hover {
 	.useSprite(1, 5);
 }
-.fancytree-exp-cl span.fancytree-expander { // Collapsed, not delayed, last sibling
+.fancytree-exp-cl span.fancytree-expander {
+	// Collapsed, not delayed, last sibling
 	.useSprite(0, 6);
 }
 .fancytree-exp-cl span.fancytree-expander:hover {
 	.useSprite(1, 6);
 }
-.fancytree-exp-cd span.fancytree-expander { // Collapsed, delayed, not last sibling
+.fancytree-exp-cd span.fancytree-expander {
+	// Collapsed, delayed, not last sibling
 	.useSprite(4, 5);
 }
 .fancytree-exp-cd span.fancytree-expander:hover {
 	.useSprite(5, 5);
 }
-.fancytree-exp-cdl span.fancytree-expander { // Collapsed, delayed, last sibling
+.fancytree-exp-cdl span.fancytree-expander {
+	// Collapsed, delayed, last sibling
 	.useSprite(4, 6);
 }
 .fancytree-exp-cdl span.fancytree-expander:hover {
@@ -331,7 +361,8 @@ span.fancytree-expander {
 // --- Expanded
 
 .fancytree-exp-e span.fancytree-expander,   // Expanded, not delayed, not last sibling
-.fancytree-exp-ed span.fancytree-expander { // Expanded, delayed, not last sibling
+.fancytree-exp-ed span.fancytree-expander {
+	// Expanded, delayed, not last sibling
 	.useSprite(2, 5);
 }
 .fancytree-exp-e span.fancytree-expander:hover,
@@ -339,7 +370,8 @@ span.fancytree-expander {
 	.useSprite(3, 5);
 }
 .fancytree-exp-el span.fancytree-expander,   // Expanded, not delayed, last sibling
-.fancytree-exp-edl span.fancytree-expander { // Expanded, delayed, last sibling
+.fancytree-exp-edl span.fancytree-expander {
+	// Expanded, delayed, last sibling
 	.useSprite(2, 6);
 }
 .fancytree-exp-el span.fancytree-expander:hover,
@@ -356,7 +388,7 @@ span.fancytree-expander {
 	&:hover span.fancytree-expander,
 	&.fancytree-treefocus span.fancytree-expander,
 	.fancytree-treefocus span.fancytree-expander,
-	[class*='fancytree-statusnode-'] span.fancytree-expander {
+	[class*="fancytree-statusnode-"] span.fancytree-expander {
 		transition: opacity 0.6s;
 		opacity: 1;
 	}
@@ -369,22 +401,40 @@ span.fancytree-expander {
 span.fancytree-checkbox {
 	margin-left: @fancy-icon-spacing;
 	.useSprite(0, 2);
-	&:hover { .useSprite(1, 2); }
-	&.fancytree-radio { .useSprite(0, 3); }
-	&.fancytree-radio:hover { .useSprite(1, 3); }
+	&:hover {
+		.useSprite(1, 2);
+	}
+	&.fancytree-radio {
+		.useSprite(0, 3);
+	}
+	&.fancytree-radio:hover {
+		.useSprite(1, 3);
+	}
 }
 .fancytree-partsel span.fancytree-checkbox {
 	.useSprite(4, 2);
-	&:hover { .useSprite(5, 2); }
-	&.fancytree-radio { .useSprite(4, 3); }
-	&.fancytree-radio:hover { .useSprite(5, 3); }
+	&:hover {
+		.useSprite(5, 2);
+	}
+	&.fancytree-radio {
+		.useSprite(4, 3);
+	}
+	&.fancytree-radio:hover {
+		.useSprite(5, 3);
+	}
 }
 // selected after partsel, so it takes precedence:
 .fancytree-selected span.fancytree-checkbox {
 	.useSprite(2, 2);
-	&:hover { .useSprite(3, 2); }
-	&.fancytree-radio { .useSprite(2, 3); }
-	&.fancytree-radio:hover { .useSprite(3, 3); }
+	&:hover {
+		.useSprite(3, 2);
+	}
+	&.fancytree-radio {
+		.useSprite(2, 3);
+	}
+	&.fancytree-radio:hover {
+		.useSprite(3, 3);
+	}
 }
 // Unselectable is dimmed, without hover effects
 .fancytree-unselectable {
@@ -403,6 +453,25 @@ span.fancytree-checkbox {
 	}
 }
 
+// Auto-hide checkboxes unless selected or hovered
+.fancytree-container.fancytree-checkbox-auto-hide {
+	span.fancytree-checkbox {
+		visibility: hidden;
+	}
+  .fancytree-node:hover span.fancytree-checkbox,
+	tr:hover td span.fancytree-checkbox,
+	.fancytree-node.fancytree-selected span.fancytree-checkbox,
+	tr.fancytree-selected td span.fancytree-checkbox {
+		visibility: unset;
+	}
+  &.fancytree-treefocus {
+    .fancytree-node.fancytree-active span.fancytree-checkbox,
+    tr.fancytree-active td span.fancytree-checkbox {
+      visibility: unset;
+    }
+  }
+}
+
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -413,25 +482,29 @@ span.fancytree-checkbox {
  * 2nd character (optional): 'f': folder
  *----------------------------------------------------------------------------*/
 
-span.fancytree-icon { // Default icon
+span.fancytree-icon {
+	// Default icon
 	margin-left: @fancy-icon-spacing;
 	.useSprite(0, 0);
 }
 
 /* Documents */
-.fancytree-ico-c span.fancytree-icon  { // Collapsed folder (empty)
+.fancytree-ico-c span.fancytree-icon {
+	// Collapsed folder (empty)
 	// .useSprite(0, 0);
 }
 .fancytree-ico-c span.fancytree-icon:hover {
 	.useSprite(1, 0);
 }
-.fancytree-has-children.fancytree-ico-c span.fancytree-icon  { // Collapsed folder (not empty)
+.fancytree-has-children.fancytree-ico-c span.fancytree-icon {
+	// Collapsed folder (not empty)
 	.useSprite(2, 0);
 }
 .fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover {
 	.useSprite(3, 0);
 }
-.fancytree-ico-e span.fancytree-icon  { // Expanded folder
+.fancytree-ico-e span.fancytree-icon {
+	// Expanded folder
 	.useSprite(4, 0);
 }
 .fancytree-ico-e span.fancytree-icon:hover {
@@ -439,19 +512,22 @@ span.fancytree-icon { // Default icon
 }
 
 /* Folders */
-.fancytree-ico-cf span.fancytree-icon  { // Collapsed folder (empty)
+.fancytree-ico-cf span.fancytree-icon {
+	// Collapsed folder (empty)
 	.useSprite(0, 1);
 }
 .fancytree-ico-cf span.fancytree-icon:hover {
 	.useSprite(1, 1);
 }
-.fancytree-has-children.fancytree-ico-cf span.fancytree-icon  { // Collapsed folder (not empty)
+.fancytree-has-children.fancytree-ico-cf span.fancytree-icon {
+	// Collapsed folder (not empty)
 	.useSprite(2, 1);
 }
 .fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover {
 	.useSprite(3, 1);
 }
-.fancytree-ico-ef span.fancytree-icon  { // Expanded folder
+.fancytree-ico-ef span.fancytree-icon {
+	// Expanded folder
 	.useSprite(4, 1);
 }
 .fancytree-ico-ef span.fancytree-icon:hover {
@@ -475,7 +551,6 @@ span.fancytree-icon.fancytree-icon-loading {
 	.useSprite(0, 7);
 }
 
-
 /*------------------------------------------------------------------------------
  * Node titles and highlighting
  *----------------------------------------------------------------------------*/
@@ -498,12 +573,12 @@ span.fancytree-title {
 	// margin: 0px;
 	// margin-top: @fancy-line-ofs-top;
 	// margin-left: @fancy-icon-spacing;
-    border: @fancy-node-border-width solid transparent;  // avoid jumping, when a border is added on hover
-    .rounded-corners(@fancy-node-border-radius);
-//  outline: 0; // @ Firefox, prevent dotted border after click
-// Set transparent border to prevent jumping when active node gets a border
-//	   (we can do this, because this theme doesn't use vertical lines)
-//	border: 1px solid white; // Note: 'transparent' would not work in IE6
+	border: @fancy-node-border-width solid transparent; // avoid jumping, when a border is added on hover
+	.rounded-corners(@fancy-node-border-radius);
+	//  outline: 0; // @ Firefox, prevent dotted border after click
+	// Set transparent border to prevent jumping when active node gets a border
+	//	   (we can do this, because this theme doesn't use vertical lines)
+	//	border: 1px solid white; // Note: 'transparent' would not work in IE6
 }
 span.fancytree-node.fancytree-error span.fancytree-title {
 	color: @fancy-font-error-color;
@@ -512,23 +587,23 @@ span.fancytree-node.fancytree-error span.fancytree-title {
 /*------------------------------------------------------------------------------
  * Drag'n'drop support
  *----------------------------------------------------------------------------*/
- /* ext-dnd5: */
- span.fancytree-childcounter {
-	 color: #fff;
-	 background: #337ab7;  // bootstrap blue
-	 border: 1px solid gray;
-	 border-radius: 10px;
-	 padding: 2px;
-	 text-align: center;
- }
-
- /* ext-dnd: */
+/* ext-dnd5: */
+span.fancytree-childcounter {
+	color: #fff;
+	background: #337ab7; // bootstrap blue
+	border: 1px solid gray;
+	border-radius: 10px;
+	padding: 2px;
+	text-align: center;
+}
+
+/* ext-dnd: */
 div.fancytree-drag-helper {
 	span.fancytree-childcounter,
 	span.fancytree-dnd-modifier {
 		display: inline-block;
 		color: #fff;
-		background: #337ab7;  // bootstrap blue
+		background: #337ab7; // bootstrap blue
 		border: 1px solid gray;
 		min-width: 10px;
 		// min-height: 16px;
@@ -547,7 +622,7 @@ div.fancytree-drag-helper {
 		right: -6px;
 	}
 	span.fancytree-dnd-modifier {
-		background: #5cb85c;  // bootstrap green
+		background: #5cb85c; // bootstrap green
 		border: none;
 		// min-height: 16px;
 		// font-size: 12px;
@@ -565,7 +640,6 @@ div.fancytree-drag-helper {
 	}
 }
 
-
 /*** Drop marker icon *********************************************************/
 #fancytree-drop-marker {
 	width: 2 * @fancy-icon-width; // was 24px, but 32 should be correct
@@ -589,7 +663,7 @@ div.fancytree-drag-helper {
 
 span.fancytree-drag-source {
 	&.fancytree-drag-remove {
-//		text-decoration: line-through;
+		//		text-decoration: line-through;
 		opacity: 0.15;
 	}
 }
@@ -605,7 +679,6 @@ span.fancytree-drop-reject {
 	// outline: 1px dotted #d9534f; // boostrap warning
 }
 
-
 /*------------------------------------------------------------------------------
  * 'rtl' option
  *----------------------------------------------------------------------------*/
@@ -657,14 +730,14 @@ table.fancytree-ext-table {
 	font-size: @fancy-font-size;
 	border-collapse: collapse;
 	span.fancytree-node {
-		display: inline-block;  // #117
-		box-sizing: border-box;  // #562
+		display: inline-block; // #117
+		box-sizing: border-box; // #562
 	}
 	td.fancytree-status-merged {
 		text-align: center;
 		// font-weight: bold;
 		font-style: italic;
-//		line-height: 100px;
+		//		line-height: 100px;
 		color: @fancy-font-color-dimm;
 	}
 	tr.fancytree-statusnode-error td.fancytree-status-merged {
@@ -684,36 +757,35 @@ table.fancytree-ext-table {
 	}
 }
 
-
 /*------------------------------------------------------------------------------
  * 'columnview' extension
  *----------------------------------------------------------------------------*/
 
 table.fancytree-ext-columnview {
-// 	border-collapse: collapse;
-// 	width: 100%;
+	// 	border-collapse: collapse;
+	// 	width: 100%;
 	tbody tr td {
 		position: relative;
 		border: 1px solid gray;
 		vertical-align: top;
 		overflow: auto;
-		>ul {
+		> ul {
 			padding: 0;
 			li {
 				list-style-image: none;
 				list-style-position: outside;
 				list-style-type: none;
-				-moz-background-clip:border;
+				-moz-background-clip: border;
 				-moz-background-inline-policy: continuous;
 				-moz-background-origin: padding;
 				background-attachment: scroll;
 				background-color: transparent;
 				.setBgPos(0, 0);
 				background-repeat: repeat-y;
-				background-image: none;  /* no v-lines */
+				background-image: none; /* no v-lines */
 
 				margin: 0;
-//				padding: 1px 0 0 0;  // issue #246
+				//				padding: 1px 0 0 0;  // issue #246
 			}
 		}
 	}
@@ -724,8 +796,8 @@ table.fancytree-ext-columnview {
 	span.fancytree-node.fancytree-expanded {
 		background-color: #e0e0e0;
 	}
-  span.fancytree-node.fancytree-active {
-		background-color: #CBE8F6;
+	span.fancytree-node.fancytree-active {
+		background-color: #cbe8f6;
 		// background-color: royalblue;
 	}
 	.fancytree-has-children span.fancytree-cv-right {
@@ -799,7 +871,7 @@ table.fancytree-ext-columnview {
 	}
 	span.fancytree-childcounter {
 		color: #fff;
-		background: #777;  // #337ab7;  // bootstrap blue
+		background: #777; // #337ab7;  // bootstrap blue
 		border: 1px solid gray;
 		position: absolute;
 		top: -6px;
@@ -827,7 +899,7 @@ ul.fancytree-ext-wide {
 	-moz-box-sizing: border-box;
 	box-sizing: border-box;
 
-	span.fancytree-node >span {
+	span.fancytree-node > span {
 		position: relative;
 		z-index: 2;
 	}
@@ -850,37 +922,37 @@ ul.fancytree-ext-wide {
  *----------------------------------------------------------------------------*/
 
 .fancytree-ext-fixed-wrapper {
-    .fancytree-ext-fixed-hidden {
-        display: none;
-    }
-    div.fancytree-ext-fixed-scroll-border-bottom {
-        border-bottom: 3px solid rgba(0, 0, 0, 0.75);
-    }
-    div.fancytree-ext-fixed-scroll-border-right {
-        border-right: 3px solid rgba(0, 0, 0, 0.75);
-    }
-    div.fancytree-ext-fixed-wrapper-tl {
-        position: absolute;
-        overflow: hidden;
-        z-index: 3;
-        top: 0px;
-        left: 0px;
-    }
-    div.fancytree-ext-fixed-wrapper-tr {
-        position: absolute;
-        overflow: hidden;
-        z-index: 2;
-        top: 0px;
-    }
-    div.fancytree-ext-fixed-wrapper-bl {
-        position: absolute;
-        overflow: hidden;
-        z-index: 2;
-        left: 0px;
-    }
-    div.fancytree-ext-fixed-wrapper-br {
-        position: absolute;
-        overflow: scroll;
-        z-index: 1;
-    }
+	.fancytree-ext-fixed-hidden {
+		display: none;
+	}
+	div.fancytree-ext-fixed-scroll-border-bottom {
+		border-bottom: 3px solid rgba(0, 0, 0, 0.75);
+	}
+	div.fancytree-ext-fixed-scroll-border-right {
+		border-right: 3px solid rgba(0, 0, 0, 0.75);
+	}
+	div.fancytree-ext-fixed-wrapper-tl {
+		position: absolute;
+		overflow: hidden;
+		z-index: 3;
+		top: 0px;
+		left: 0px;
+	}
+	div.fancytree-ext-fixed-wrapper-tr {
+		position: absolute;
+		overflow: hidden;
+		z-index: 2;
+		top: 0px;
+	}
+	div.fancytree-ext-fixed-wrapper-bl {
+		position: absolute;
+		overflow: hidden;
+		z-index: 2;
+		left: 0px;
+	}
+	div.fancytree-ext-fixed-wrapper-br {
+		position: absolute;
+		overflow: scroll;
+		z-index: 1;
+	}
 }
diff --git a/dist/skin-lion/ui.fancytree.css b/dist/skin-lion/ui.fancytree.css
index eeac6713..b18c0224 100644
--- a/dist/skin-lion/ui.fancytree.css
+++ b/dist/skin-lion/ui.fancytree.css
@@ -15,12 +15,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -234,7 +234,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -291,6 +291,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -548,7 +561,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-lion/ui.fancytree.min.css b/dist/skin-lion/ui.fancytree.min.css
index 9a487809..75a293d7 100644
--- a/dist/skin-lion/ui.fancytree.min.css
+++ b/dist/skin-lion/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-lion/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-lion/icons.gif);background-position:0 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\ No newline at end of file
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-48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-lion/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:16px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:16px;padding:0 3px 0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-lion/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-lion/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-lion/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-lion/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}span.fancytree-title{border:1px solid transparent;border-radius:0}span.fancytree-focused span.fancytree-title{outline:1px dotted #000}span.fancytree-active span.fancytree-title,span.fancytree-selected span.fancytree-title{background-color:#d4d4d4}span.fancytree-selected span.fancytree-title{font-style:italic}.fancytree-treefocus span.fancytree-active span.fancytree-title,.fancytree-treefocus span.fancytree-selected span.fancytree-title{color:#fff;background-color:#3875d7}table.fancytree-ext-table{border-collapse:collapse}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99defd}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#99defd}table.fancytree-ext-columnview tbody tr td{border:1px solid gray}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
diff --git a/dist/skin-material/ui.fancytree.css b/dist/skin-material/ui.fancytree.css
index 208f62d6..4eab04f0 100644
--- a/dist/skin-material/ui.fancytree.css
+++ b/dist/skin-material/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -178,7 +178,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -192,6 +192,19 @@ span.fancytree-checkbox {
   opacity: 0.4;
   filter: alpha(opacity=40);
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -383,7 +396,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-material/ui.fancytree.min.css b/dist/skin-material/ui.fancytree.min.css
index b6bc6ba7..c600c56f 100644
--- a/dist/skin-material/ui.fancytree.min.css
+++ b/dist/skin-material/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}table.fancytree-ext-table,ul.fancytree-container{font-family:"Roboto Regular",tahoma,arial,helvetica}.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-size:24px;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}img.fancytree-icon,span.fancytree-checkbox,span.fancytree-icon{margin-left:3px}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-material/vline.gif);background-position:0 0}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading,ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:24px;height:24px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:0 0}span.fancytree-custom-icon{width:24px;height:24px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:24px;height:24px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:24px}span.fancytree-title{color:#212121;cursor:pointer;display:inline-block;vertical-align:top;min-height:24px;padding:0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:48px;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:96px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-material/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-size:24px;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:.3em 0 0 1em;margin:0;font-size:24px;color:#212121}.fancytree-plain span.fancytree-selected span.fancytree-title{background-color:#f5f5f5}.fancytree-plain span.fancytree-active span.fancytree-title,.fancytree-plain span.fancytree-selected span.fancytree-title:hover{background-color:#eee}.fancytree-container span.fancytree-checkbox{color:#ff4081}table.fancytree-ext-table tbody tr.fancytree-focused,table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#f5f5f5}table.fancytree-ext-table tbody tr.fancytree-active,table.fancytree-ext-table tbody tr:hover{background-color:#eee}table.fancytree-ext-columnview tbody tr td{border:1px solid gray}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:"Roboto Regular",tahoma,arial,helvetica;font-size:24px;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 24px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-material/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:24px;height:24px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:24px;height:24px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:24px;height:24px;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{margin-top:0}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:none}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:24px}span.fancytree-title{color:#212121;cursor:pointer;display:inline-block;vertical-align:top;min-height:24px;padding:0 3px 0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}#fancytree-drop-marker{width:48px;position:absolute;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:96px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-material/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}table.fancytree-ext-table{font-family:"Roboto Regular",tahoma,arial,helvetica;font-size:24px;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container ul{padding:.3em 0 0 1em;margin:0;font-size:24px;color:#212121}.fancytree-plain span.fancytree-selected span.fancytree-title{background-color:#f5f5f5}.fancytree-plain span.fancytree-active span.fancytree-title,.fancytree-plain span.fancytree-selected span.fancytree-title:hover{background-color:#eee}.fancytree-container span.fancytree-checkbox{color:#ff4081}table.fancytree-ext-table{border-collapse:collapse}table.fancytree-ext-table tbody tr.fancytree-focused,table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#f5f5f5}table.fancytree-ext-table tbody tr.fancytree-active,table.fancytree-ext-table tbody tr:hover{background-color:#eee}table.fancytree-ext-columnview tbody tr td{border:1px solid gray}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
diff --git a/dist/skin-themeroller/ui.fancytree.css b/dist/skin-themeroller/ui.fancytree.css
index da316b42..e0fd8dfe 100644
--- a/dist/skin-themeroller/ui.fancytree.css
+++ b/dist/skin-themeroller/ui.fancytree.css
@@ -11,12 +11,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -230,7 +230,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -287,6 +287,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -544,7 +557,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-themeroller/ui.fancytree.min.css b/dist/skin-themeroller/ui.fancytree.min.css
index 5f738fb8..bfd4d309 100644
--- a/dist/skin-themeroller/ui.fancytree.min.css
+++ b/dist/skin-themeroller/ui.fancytree.min.css
@@ -5,4 +5,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-themeroller/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-themeroller/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:2px}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:2px;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-themeroller/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px 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-128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-themeroller/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-themeroller/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-themeroller/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-themeroller/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}.fancytree-plain span.fancytree-node{border:1px solid transparent}table.fancytree-ext-table tbody tr td{border:1px solid transparent}
\ No newline at end of file
diff --git a/dist/skin-vista/ui.fancytree.css b/dist/skin-vista/ui.fancytree.css
index 4b611b6b..174c2a6c 100644
--- a/dist/skin-vista/ui.fancytree.css
+++ b/dist/skin-vista/ui.fancytree.css
@@ -25,12 +25,12 @@ List view:
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -244,7 +244,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -301,6 +301,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -558,7 +571,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-vista/ui.fancytree.min.css b/dist/skin-vista/ui.fancytree.min.css
index 07d64e9d..7fa093ac 100644
--- a/dist/skin-vista/ui.fancytree.min.css
+++ b/dist/skin-vista/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-vista/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-vista/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-vista/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-vista/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:16px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:16px;padding:0 3px;margin:0 0 0 3px;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-vista/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-vista/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-vista/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-vista/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}span.fancytree-title{border:1px solid transparent}span.fancytree-title:hover{background-color:#F2F7FD;border-color:#B8D6FB}span.fancytree-focused span.fancytree-title{background-color:#EFEBDE;outline:gray dotted 1px}span.fancytree-selected span.fancytree-title{font-style:italic}span.fancytree-active span.fancytree-title{border:1px solid #99DEFD;background-color:#D8F0FA}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99DEFD}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#99FDDE}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-vista/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-image:url(../skin-vista/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-vista/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-vista/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:16px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:16px;padding:0 3px 0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-vista/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-vista/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-vista/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-vista/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}span.fancytree-title{border:1px solid transparent}span.fancytree-title:hover{background-color:#f2f7fd;border-color:#b8d6fb}span.fancytree-focused span.fancytree-title{background-color:#efebde;outline:1px dotted gray}span.fancytree-selected span.fancytree-title{font-style:italic}span.fancytree-active span.fancytree-title{border:1px solid #99defd;background-color:#d8f0fa}table.fancytree-ext-table{border-collapse:collapse}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99defd}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#99fdde}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#ccc}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#4169e1}
\ No newline at end of file
diff --git a/dist/skin-win7/ui.fancytree.css b/dist/skin-win7/ui.fancytree.css
index 8ad3558c..8a3f5175 100644
--- a/dist/skin-win7/ui.fancytree.css
+++ b/dist/skin-win7/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -228,7 +228,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -285,6 +285,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -542,7 +555,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-win7/ui.fancytree.min.css b/dist/skin-win7/ui.fancytree.min.css
index c0d86641..af5403de 100644
--- a/dist/skin-win7/ui.fancytree.min.css
+++ b/dist/skin-win7/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-win7/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-win7/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:2px}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:2px;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win7/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-win7/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:20px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:20px;padding:0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:3px;-moz-border-radius:3px;-ms-border-radius:3px;-o-border-radius:3px;border-radius:3px}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-win7/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win7/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-win7/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-win7/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#CBE8F6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}span.fancytree-active .fancytree-title,span.fancytree-selected .fancytree-title{border-color:#d9d9d9;color:inherit;background:-moz-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#fafafb),color-stop(100%,#e5e5e5));background:-webkit-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:-o-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:-ms-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:linear-gradient(to bottom,#fafafb 0,#e5e5e5 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fafafb', endColorstr='#e5e5e5', GradientType=0)}span.fancytree-selected .fancytree-title{font-style:italic}.fancytree-treefocus span.fancytree-active .fancytree-title,.fancytree-treefocus span.fancytree-selected .fancytree-title{border-color:#99defd;color:inherit;background:-moz-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f6fbfd),color-stop(100%,#d5effc));background:-webkit-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-o-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-ms-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:linear-gradient(to bottom,#f6fbfd 0,#d5effc 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f6fbfd', endColorstr='#d5effc', GradientType=0)}.fancytree-treefocus span.fancytree-focused span.fancytree-title{border:1px solid #719acb}span.fancytree-title:hover{border-color:#d8f0fa;color:inherit;background:-moz-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f8fcfe),color-stop(100%,#eff9fe));background:-webkit-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-o-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-ms-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:linear-gradient(to bottom,#f8fcfe 0,#eff9fe 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f8fcfe', endColorstr='#eff9fe', GradientType=0)}span.fancytree-active .fancytree-title:hover,span.fancytree-selected .fancytree-title:hover{border-color:#719acb;color:inherit;background:-moz-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f2f9fd),color-stop(100%,#c4e8fa));background:-webkit-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-o-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-ms-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:linear-gradient(to bottom,#f2f9fd 0,#c4e8fa 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f2f9fd', endColorstr='#c4e8fa', GradientType=0)}table.fancytree-ext-table tbody tr td{border:1px solid #ededed}table.fancytree-ext-table tbody tr:hover{border-color:inherit;color:inherit;background:-moz-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f8fcfe),color-stop(100%,#eff9fe));background:-webkit-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-o-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-ms-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:linear-gradient(to bottom,#f8fcfe 0,#eff9fe 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f8fcfe', endColorstr='#eff9fe', GradientType=0);outline:#d8f0fa solid 1px}table.fancytree-ext-table tbody tr.fancytree-focused{outline:#090402 dotted 1px}table.fancytree-ext-table tbody span.fancytree-focused span.fancytree-title{outline:dotted solid}table.fancytree-ext-table tbody span.fancytree-title:hover{border:1px solid transparent;background:0 0;filter:none}table.fancytree-ext-table tbody tr.fancytree-active:hover,table.fancytree-ext-table tbody tr.fancytree-selected:hover{border-color:inherit;color:inherit;background:-moz-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f2f9fd),color-stop(100%,#c4e8fa));background:-webkit-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-o-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-ms-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:linear-gradient(to bottom,#f2f9fd 0,#c4e8fa 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f2f9fd', endColorstr='#c4e8fa', GradientType=0);outline:#B6E6FB solid 1px}table.fancytree-ext-table tbody tr.fancytree-active,table.fancytree-ext-table tbody tr.fancytree-selected{border-color:inherit;color:inherit;background:-moz-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f6fbfd),color-stop(100%,#d5effc));background:-webkit-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-o-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-ms-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:linear-gradient(to bottom,#f6fbfd 0,#d5effc 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f6fbfd', endColorstr='#d5effc', GradientType=0);outline:#99DEFD solid 1px}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-win7/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-image:url(../skin-win7/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:2px}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:2px;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win7/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-win7/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:20px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:20px;padding:0 3px 0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:3px;-moz-border-radius:3px;-ms-border-radius:3px;-o-border-radius:3px;border-radius:3px}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-win7/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win7/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-win7/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-win7/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}span.fancytree-active .fancytree-title,span.fancytree-selected .fancytree-title{border-color:#d9d9d9;background:#e5e5e5;color:inherit;background:-moz-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#fafafb),color-stop(100%,#e5e5e5));background:-webkit-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:-o-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:-ms-linear-gradient(top,#fafafb 0,#e5e5e5 100%);background:linear-gradient(to bottom,#fafafb 0,#e5e5e5 100%)}span.fancytree-selected .fancytree-title{font-style:italic}.fancytree-treefocus span.fancytree-active .fancytree-title,.fancytree-treefocus span.fancytree-selected .fancytree-title{border-color:#99defd;background:#f6fbfd;color:inherit;background:-moz-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f6fbfd),color-stop(100%,#d5effc));background:-webkit-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-o-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-ms-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:linear-gradient(to bottom,#f6fbfd 0,#d5effc 100%)}.fancytree-treefocus span.fancytree-focused span.fancytree-title{border:1px solid #719acb}span.fancytree-title:hover{border-color:#d8f0fa;background:#f8fcfe;color:inherit;background:-moz-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f8fcfe),color-stop(100%,#eff9fe));background:-webkit-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-o-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-ms-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:linear-gradient(to bottom,#f8fcfe 0,#eff9fe 100%)}span.fancytree-active .fancytree-title:hover,span.fancytree-selected .fancytree-title:hover{border-color:#719acb;background:#f2f9fd;color:inherit;background:-moz-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f2f9fd),color-stop(100%,#c4e8fa));background:-webkit-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-o-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-ms-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:linear-gradient(to bottom,#f2f9fd 0,#c4e8fa 100%)}table.fancytree-ext-table tbody tr td{border:1px solid #ededed}table.fancytree-ext-table tbody tr:hover{border-color:inherit;background:#f8fcfe;color:inherit;background:-moz-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f8fcfe),color-stop(100%,#eff9fe));background:-webkit-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-o-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:-ms-linear-gradient(top,#f8fcfe 0,#eff9fe 100%);background:linear-gradient(to bottom,#f8fcfe 0,#eff9fe 100%);outline:1px solid #d8f0fa}table.fancytree-ext-table tbody tr.fancytree-focused{outline:1px dotted #090402}table.fancytree-ext-table tbody span.fancytree-focused span.fancytree-title{outline:solid dotted #000}table.fancytree-ext-table tbody span.fancytree-title:hover{border:1px solid transparent;background:inherit;background:0 0;background:0 0;filter:none}table.fancytree-ext-table tbody tr.fancytree-active:hover,table.fancytree-ext-table tbody tr.fancytree-selected:hover{border-color:inherit;background:#f2f9fd;color:inherit;background:-moz-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f2f9fd),color-stop(100%,#c4e8fa));background:-webkit-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-o-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:-ms-linear-gradient(top,#f2f9fd 0,#c4e8fa 100%);background:linear-gradient(to bottom,#f2f9fd 0,#c4e8fa 100%);outline:1px solid #b6e6fb}table.fancytree-ext-table tbody tr.fancytree-active,table.fancytree-ext-table tbody tr.fancytree-selected{border-color:inherit;background:#f6fbfd;color:inherit;background:-moz-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#f6fbfd),color-stop(100%,#d5effc));background:-webkit-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-o-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:-ms-linear-gradient(top,#f6fbfd 0,#d5effc 100%);background:linear-gradient(to bottom,#f6fbfd 0,#d5effc 100%);outline:1px solid #99defd}
\ No newline at end of file
diff --git a/dist/skin-win8-n/ui.fancytree.css b/dist/skin-win8-n/ui.fancytree.css
index dfe96aa6..681ee825 100644
--- a/dist/skin-win8-n/ui.fancytree.css
+++ b/dist/skin-win8-n/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -228,7 +228,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -285,6 +285,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -542,7 +555,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-win8-n/ui.fancytree.min.css b/dist/skin-win8-n/ui.fancytree.min.css
index d937634f..2aa30c39 100644
--- a/dist/skin-win8-n/ui.fancytree.min.css
+++ b/dist/skin-win8-n/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 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0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win8-n/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px 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\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container 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.6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-win8-n/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:16px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:16px;padding:0 3px 0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-win8-n/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win8-n/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-win8-n/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-win8-n/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}.fancytree-plain span.fancytree-node{border:1px solid transparent}.fancytree-plain span.fancytree-node:hover{background-color:#e5f3fb;border-color:#70c0e7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-focused{border-color:#39f}.fancytree-plain span.fancytree-node.fancytree-active,.fancytree-plain span.fancytree-node.fancytree-selected{background-color:#f7f7f7;border-color:#dedede}.fancytree-plain span.fancytree-node.fancytree-active:hover,.fancytree-plain span.fancytree-node.fancytree-selected:hover,.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-active,.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-node.fancytree-selected{background-color:#cbe8f6;border-color:#26a0da}.fancytree-plain .fancytree-node.fancytree-selected{font-style:italic}table.fancytree-ext-table tbody tr td{border:1px solid #ededed}table.fancytree-ext-table tbody span.fancytree-node,table.fancytree-ext-table tbody span.fancytree-node:hover{border:none;background:0 0}table.fancytree-ext-table tbody tr:hover{background-color:#e5f3fb;outline:1px solid #70c0e7}table.fancytree-ext-table tbody tr.fancytree-focused span.fancytree-title{outline:1px dotted #000}table.fancytree-ext-table tbody tr.fancytree-active:hover,table.fancytree-ext-table tbody tr.fancytree-selected:hover{background-color:#cbe8f6;outline:1px solid #26a0da}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#f7f7f7;outline:1px solid #dedede}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#f7f7f7}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active{background-color:#cbe8f6;outline:1px solid #26a0da}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected{background-color:#cbe8f6}
\ No newline at end of file
diff --git a/dist/skin-win8-xxl/ui.fancytree.css b/dist/skin-win8-xxl/ui.fancytree.css
index 4b802ab1..19d840ff 100644
--- a/dist/skin-win8-xxl/ui.fancytree.css
+++ b/dist/skin-win8-xxl/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -228,7 +228,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -285,6 +285,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -64px -64px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -542,7 +555,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-win8-xxl/ui.fancytree.min.css b/dist/skin-win8-xxl/ui.fancytree.min.css
index 5e304b86..a862659e 100644
--- a/dist/skin-win8-xxl/ui.fancytree.min.css
+++ b/dist/skin-win8-xxl/ui.fancytree.min.css
@@ -3,9 +3,9 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;white-space:nowrap;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 32px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-win8-xxl/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:32px;height:32px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-win8-xxl/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:32px;height:32px;display:inline-block;margin-left:6px;background-position:0 0}img.fancytree-icon{width:32px;height:32px;margin-left:6px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win8-xxl/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -128px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-32px -128px}.fancytree-exp-c span.fancytree-expander{background-position:0 -160px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-32px -160px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -192px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-32px -192px}.fancytree-exp-cd span.fancytree-expander{background-position:-128px -160px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-160px -160px}.fancytree-exp-cdl span.fancytree-expander{background-position:-128px -192px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-160px -192px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-64px -160px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-96px -160px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-64px -192px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-96px -192px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:6px;background-position:0 -64px}span.fancytree-checkbox:hover{background-position:-32px -64px}span.fancytree-checkbox.fancytree-radio{background-position:0 -96px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-32px -96px}.fancytree-partsel span.fancytree-checkbox{background-position:-128px -64px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-160px -64px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-128px -96px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-160px -96px}.fancytree-selected span.fancytree-checkbox{background-position:-64px -64px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-96px -64px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-64px -96px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-96px -96px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -64px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-128px -64px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-64px -64px}span.fancytree-icon{margin-left:6px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-64px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-96px 0}.fancytree-ico-e span.fancytree-icon{background-position:-128px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-160px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -32px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-32px -32px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-64px -32px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-96px -32px}.fancytree-ico-ef span.fancytree-icon{background-position:-128px -32px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-160px -32px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading 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td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -160px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-32px -160px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}/*!
  * Fancytree "Win8" skin.
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-plain span.fancytree-title{border:1px solid transparent}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-focused span.fancytree-title{border-color:#39f}.fancytree-plain span.fancytree-active span.fancytree-title,.fancytree-plain span.fancytree-selected span.fancytree-title{background-color:#f7f7f7;border-color:#dedede}.fancytree-plain span.fancytree-node span.fancytree-selected span.fancytree-title{font-style:italic}.fancytree-plain span.fancytree-node:hover span.fancytree-title{background-color:#eff9fe;border-color:#70c0e7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-active span.fancytree-title,.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-selected span.fancytree-title{background-color:#cbe8f6;border-color:#26a0da}table.fancytree-ext-table tbody tr td{border:1px solid #EDEDED}table.fancytree-ext-table tbody span.fancytree-node,table.fancytree-ext-table tbody span.fancytree-node:hover{border:none;background:0 0}table.fancytree-ext-table tbody tr:hover{background-color:#E5F3FB;outline:#70C0E7 solid 1px}table.fancytree-ext-table tbody tr.fancytree-focused span.fancytree-title{outline:#000 dotted 1px}table.fancytree-ext-table tbody tr.fancytree-active:hover,table.fancytree-ext-table tbody tr.fancytree-selected:hover{background-color:#CBE8F6;outline:#26A0DA solid 1px}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#F7F7F7;outline:#DEDEDE solid 1px}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#F7F7F7}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active{background-color:#CBE8F6;outline:#26A0DA solid 1px}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected{background-color:#CBE8F6}ul.fancytree-container{font-size:20pt;padding:6px}
\ No newline at end of file
+ */.fancytree-plain span.fancytree-title{border:1px solid transparent}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-focused span.fancytree-title{border-color:#39f}.fancytree-plain span.fancytree-active span.fancytree-title,.fancytree-plain span.fancytree-selected span.fancytree-title{background-color:#f7f7f7;border-color:#dedede}.fancytree-plain span.fancytree-node span.fancytree-selected span.fancytree-title{font-style:italic}.fancytree-plain span.fancytree-node:hover span.fancytree-title{background-color:#eff9fe;border-color:#70c0e7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-active span.fancytree-title,.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-selected span.fancytree-title{background-color:#cbe8f6;border-color:#26a0da}table.fancytree-ext-table tbody tr td{border:1px solid #ededed}table.fancytree-ext-table tbody span.fancytree-node,table.fancytree-ext-table tbody span.fancytree-node:hover{border:none;background:0 0}table.fancytree-ext-table tbody tr:hover{background-color:#e5f3fb;outline:1px solid #70c0e7}table.fancytree-ext-table tbody tr.fancytree-focused span.fancytree-title{outline:1px dotted #000}table.fancytree-ext-table tbody tr.fancytree-active:hover,table.fancytree-ext-table tbody tr.fancytree-selected:hover{background-color:#cbe8f6;outline:1px solid #26a0da}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#f7f7f7;outline:1px solid #dedede}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#f7f7f7}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active{background-color:#cbe8f6;outline:1px solid #26a0da}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected{background-color:#cbe8f6}ul.fancytree-container{font-size:20pt;padding:6px}
\ No newline at end of file
diff --git a/dist/skin-win8/ui.fancytree.css b/dist/skin-win8/ui.fancytree.css
index 87f86620..6a24a939 100644
--- a/dist/skin-win8/ui.fancytree.css
+++ b/dist/skin-win8/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -228,7 +228,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -285,6 +285,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -542,7 +555,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-win8/ui.fancytree.min.css b/dist/skin-win8/ui.fancytree.min.css
index e7f31316..5f21f94c 100644
--- a/dist/skin-win8/ui.fancytree.min.css
+++ b/dist/skin-win8/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-win8/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-win8/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:2px}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:2px;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win8/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-win8/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:0;min-height:20px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:20px;padding:0 3px;margin:0 0 0 3px;border:1px solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-win8/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-win8/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 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div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}.fancytree-plain span.fancytree-title{border:1px solid transparent}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-focused span.fancytree-title{border-color:#39f}.fancytree-plain span.fancytree-active span.fancytree-title,.fancytree-plain span.fancytree-selected span.fancytree-title{background-color:#f7f7f7;border-color:#dedede}.fancytree-plain span.fancytree-node span.fancytree-selected span.fancytree-title{font-style:italic}.fancytree-plain span.fancytree-node:hover span.fancytree-title{background-color:#eff9fe;border-color:#70c0e7}.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-active span.fancytree-title,.fancytree-plain.fancytree-container.fancytree-treefocus span.fancytree-selected span.fancytree-title{background-color:#cbe8f6;border-color:#26a0da}table.fancytree-ext-table tbody tr td{border:1px solid #ededed}table.fancytree-ext-table tbody span.fancytree-node,table.fancytree-ext-table tbody span.fancytree-node:hover{border:none;background:0 0}table.fancytree-ext-table tbody tr:hover{background-color:#e5f3fb;outline:1px solid #70c0e7}table.fancytree-ext-table tbody tr.fancytree-focused span.fancytree-title{outline:1px dotted #000}table.fancytree-ext-table tbody tr.fancytree-active:hover,table.fancytree-ext-table tbody tr.fancytree-selected:hover{background-color:#cbe8f6;outline:1px solid #26a0da}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#f7f7f7;outline:1px solid #dedede}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#f7f7f7}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-active{background-color:#cbe8f6;outline:1px solid #26a0da}table.fancytree-ext-table.fancytree-treefocus tbody tr.fancytree-selected{background-color:#cbe8f6}
\ No newline at end of file
diff --git a/dist/skin-xp/ui.fancytree.css b/dist/skin-xp/ui.fancytree.css
index ce76cbfc..eb467a8c 100644
--- a/dist/skin-xp/ui.fancytree.css
+++ b/dist/skin-xp/ui.fancytree.css
@@ -9,12 +9,12 @@
  *
  * This section is automatically generated from the `skin-common.less` template.
  *
- * Copyright (c) 2008-2019, Martin Wendt (http://wwWendt.de)
+ * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
  * Released under the MIT license
  * https://github.com/mar10/fancytree/wiki/LicenseInfo
  *
- * @version 2.30.2
- * @date 2019-01-13T08:17:01Z
+ * @version 2.31.0
+ * @date 2019-05-31T11:32:38Z
 ******************************************************************************/
 /*------------------------------------------------------------------------------
  * Helpers
@@ -228,7 +228,7 @@ span.fancytree-expander {
 .fancytree-fade-expander:hover span.fancytree-expander,
 .fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,
 .fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,
-.fancytree-fade-expander [class*='fancytree-statusnode-'] span.fancytree-expander {
+.fancytree-fade-expander [class*="fancytree-statusnode-"] span.fancytree-expander {
   transition: opacity 0.6s;
   opacity: 1;
 }
@@ -285,6 +285,19 @@ span.fancytree-checkbox.fancytree-radio:hover {
 .fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover {
   background-position: -32px -32px;
 }
+.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox {
+  visibility: hidden;
+}
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox {
+  visibility: unset;
+}
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,
+.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox {
+  visibility: unset;
+}
 /*------------------------------------------------------------------------------
  * Node type icon
  * Note: IE6 doesn't correctly evaluate multiples class names,
@@ -542,7 +555,7 @@ table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded {
   background-color: #e0e0e0;
 }
 table.fancytree-ext-columnview span.fancytree-node.fancytree-active {
-  background-color: #CBE8F6;
+  background-color: #cbe8f6;
 }
 table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right {
   position: absolute;
diff --git a/dist/skin-xp/ui.fancytree.min.css b/dist/skin-xp/ui.fancytree.min.css
index ed348e68..8ada9a62 100644
--- a/dist/skin-xp/ui.fancytree.min.css
+++ b/dist/skin-xp/ui.fancytree.min.css
@@ -3,4 +3,4 @@
  *
  * DON'T EDIT THE CSS FILE DIRECTLY, since it is automatically generated from
  * the LESS templates.
- */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-repeat:repeat-y;margin:0;list-style:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-xp/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-image:url(../skin-xp/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-xp/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4;filter:alpha(opacity=40)}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-xp/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:16px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:16px;padding:0 3px;margin:0 0 0 3px;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-xp/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-xp/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-xp/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-xp/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0;list-style:none}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide,.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#CBE8F6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide,ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide{min-width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container li{background-image:url(../skin-xp/vline.gif);background-position:0 0}ul.fancytree-container.fancytree-rtl li{background-position:right 0;background-image:url(../vline-rtl.gif)}ul.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander{background-image:url(../icons-rtl.gif);background-position:0 -64px}ul.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:url(../icons-rtl.gif);background-position:-16px -64px}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-xp/icons.gif)}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-exp-nl span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}span.fancytree-title{border:0 solid transparent}span.fancytree-title:hover{background-color:#F2F7FD;border-color:#B8D6FB}span.fancytree-focused span.fancytree-title{outline:#000 dotted 1px;background-color:#EFEBDE}.fancytree-folder span.fancytree-title{font-weight:700}.fancytree-selected span.fancytree-title{color:green;font-style:italic}.fancytree-active span.fancytree-title{background-color:#3169C6!important;color:#fff!important}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99DEFD}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#99FDDE}
\ No newline at end of file
+ */.fancytree-helper-hidden{display:none}.fancytree-helper-indeterminate-cb{color:#777}.fancytree-helper-disabled{color:silver}.fancytree-helper-spin{-webkit-animation:spin 1s infinite linear;animation:spin 1s infinite linear}@-webkit-keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}@keyframes spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(359deg);transform:rotate(359deg)}}ul.fancytree-container{font-family:tahoma,arial,helvetica;font-size:10pt;white-space:nowrap;padding:3px;margin:0;background-color:#fff;border:1px dotted gray;min-height:0;position:relative}ul.fancytree-container ul{padding:0 0 0 16px;margin:0}ul.fancytree-container ul>li:before{content:none}ul.fancytree-container li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}ul.fancytree-container li.fancytree-lastsib{background-image:none}.ui-fancytree-disabled ul.fancytree-container{opacity:.5;background-color:silver}ul.fancytree-connectors.fancytree-container li{background-image:url(../skin-xp/vline.gif);background-position:0 0}ul.fancytree-container li.fancytree-lastsib,ul.fancytree-no-connector>li{background-image:none}li.fancytree-animating{position:relative}#fancytree-drop-marker,span.fancytree-checkbox,span.fancytree-drag-helper-img,span.fancytree-empty,span.fancytree-expander,span.fancytree-icon,span.fancytree-vline{width:16px;height:16px;display:inline-block;vertical-align:top;background-repeat:no-repeat;background-position:left;background-image:url(../skin-xp/icons.gif);background-position:0 0}span.fancytree-checkbox,span.fancytree-custom-icon,span.fancytree-expander,span.fancytree-icon{margin-top:0}span.fancytree-custom-icon{width:16px;height:16px;display:inline-block;margin-left:3px;background-position:0 0}img.fancytree-icon{width:16px;height:16px;margin-left:3px;margin-top:0;vertical-align:top;border-style:none}span.fancytree-expander{cursor:pointer}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:none;cursor:default}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-xp/icons.gif);margin-top:0}.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-connectors .fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-connectors .fancytree-exp-nl span.fancytree-expander,.fancytree-connectors .fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}.fancytree-exp-c span.fancytree-expander{background-position:0 -80px}.fancytree-exp-c span.fancytree-expander:hover{background-position:-16px -80px}.fancytree-exp-cl span.fancytree-expander{background-position:0 -96px}.fancytree-exp-cl span.fancytree-expander:hover{background-position:-16px -96px}.fancytree-exp-cd span.fancytree-expander{background-position:-64px -80px}.fancytree-exp-cd span.fancytree-expander:hover{background-position:-80px -80px}.fancytree-exp-cdl span.fancytree-expander{background-position:-64px -96px}.fancytree-exp-cdl span.fancytree-expander:hover{background-position:-80px -96px}.fancytree-exp-e span.fancytree-expander,.fancytree-exp-ed span.fancytree-expander{background-position:-32px -80px}.fancytree-exp-e span.fancytree-expander:hover,.fancytree-exp-ed span.fancytree-expander:hover{background-position:-48px -80px}.fancytree-exp-edl span.fancytree-expander,.fancytree-exp-el span.fancytree-expander{background-position:-32px -96px}.fancytree-exp-edl span.fancytree-expander:hover,.fancytree-exp-el span.fancytree-expander:hover{background-position:-48px -96px}.fancytree-fade-expander span.fancytree-expander{transition:opacity 1.5s;opacity:0}.fancytree-fade-expander .fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander [class*=fancytree-statusnode-] span.fancytree-expander,.fancytree-fade-expander.fancytree-treefocus span.fancytree-expander,.fancytree-fade-expander:hover span.fancytree-expander{transition:opacity .6s;opacity:1}span.fancytree-checkbox{margin-left:3px;background-position:0 -32px}span.fancytree-checkbox:hover{background-position:-16px -32px}span.fancytree-checkbox.fancytree-radio{background-position:0 -48px}span.fancytree-checkbox.fancytree-radio:hover{background-position:-16px -48px}.fancytree-partsel span.fancytree-checkbox{background-position:-64px -32px}.fancytree-partsel span.fancytree-checkbox:hover{background-position:-80px -32px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio{background-position:-64px -48px}.fancytree-partsel span.fancytree-checkbox.fancytree-radio:hover{background-position:-80px -48px}.fancytree-selected span.fancytree-checkbox{background-position:-32px -32px}.fancytree-selected span.fancytree-checkbox:hover{background-position:-48px -32px}.fancytree-selected span.fancytree-checkbox.fancytree-radio{background-position:-32px -48px}.fancytree-selected span.fancytree-checkbox.fancytree-radio:hover{background-position:-48px -48px}.fancytree-unselectable span.fancytree-checkbox{opacity:.4}.fancytree-unselectable span.fancytree-checkbox:hover{background-position:0 -32px}.fancytree-unselectable.fancytree-partsel span.fancytree-checkbox:hover{background-position:-64px -32px}.fancytree-unselectable.fancytree-selected span.fancytree-checkbox:hover{background-position:-32px -32px}.fancytree-container.fancytree-checkbox-auto-hide span.fancytree-checkbox{visibility:hidden}.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node.fancytree-selected span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide .fancytree-node:hover span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr.fancytree-selected td span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide tr:hover td span.fancytree-checkbox{visibility:unset}.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus .fancytree-node.fancytree-active span.fancytree-checkbox,.fancytree-container.fancytree-checkbox-auto-hide.fancytree-treefocus tr.fancytree-active td span.fancytree-checkbox{visibility:unset}span.fancytree-icon{margin-left:3px;background-position:0 0}.fancytree-ico-c span.fancytree-icon:hover{background-position:-16px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon{background-position:-32px 0}.fancytree-has-children.fancytree-ico-c span.fancytree-icon:hover{background-position:-48px 0}.fancytree-ico-e span.fancytree-icon{background-position:-64px 0}.fancytree-ico-e span.fancytree-icon:hover{background-position:-80px 0}.fancytree-ico-cf span.fancytree-icon{background-position:0 -16px}.fancytree-ico-cf span.fancytree-icon:hover{background-position:-16px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon{background-position:-32px -16px}.fancytree-has-children.fancytree-ico-cf span.fancytree-icon:hover{background-position:-48px -16px}.fancytree-ico-ef span.fancytree-icon{background-position:-64px -16px}.fancytree-ico-ef span.fancytree-icon:hover{background-position:-80px -16px}.fancytree-loading span.fancytree-expander,.fancytree-loading span.fancytree-expander:hover,.fancytree-statusnode-loading span.fancytree-icon,.fancytree-statusnode-loading span.fancytree-icon:hover,span.fancytree-icon.fancytree-icon-loading{background-image:url(../skin-xp/loading.gif);background-position:0 0}.fancytree-statusnode-error span.fancytree-icon,.fancytree-statusnode-error span.fancytree-icon:hover{background-position:0 -112px}span.fancytree-node{display:inherit;width:100%;margin-top:1px;min-height:16px}span.fancytree-title{color:#000;cursor:pointer;display:inline-block;vertical-align:top;min-height:16px;padding:0 3px 0 3px;margin:0 0 0 3px;border:0 solid transparent;-webkit-border-radius:0;-moz-border-radius:0;-ms-border-radius:0;-o-border-radius:0;border-radius:0}span.fancytree-node.fancytree-error span.fancytree-title{color:red}span.fancytree-childcounter{color:#fff;background:#337ab7;border:1px solid gray;border-radius:10px;padding:2px;text-align:center}div.fancytree-drag-helper span.fancytree-childcounter,div.fancytree-drag-helper span.fancytree-dnd-modifier{display:inline-block;color:#fff;background:#337ab7;border:1px solid gray;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}div.fancytree-drag-helper span.fancytree-childcounter{position:absolute;top:-6px;right:-6px}div.fancytree-drag-helper span.fancytree-dnd-modifier{background:#5cb85c;border:none;font-weight:bolder}div.fancytree-drag-helper.fancytree-drop-accept span.fancytree-drag-helper-img{background-position:-32px -112px}div.fancytree-drag-helper.fancytree-drop-reject span.fancytree-drag-helper-img{background-position:-16px -112px}#fancytree-drop-marker{width:32px;position:absolute;background-position:0 -128px;margin:0}#fancytree-drop-marker.fancytree-drop-after,#fancytree-drop-marker.fancytree-drop-before{width:64px;background-position:0 -144px}#fancytree-drop-marker.fancytree-drop-copy{background-position:-64px -128px}#fancytree-drop-marker.fancytree-drop-move{background-position:-32px -128px}span.fancytree-drag-source.fancytree-drag-remove{opacity:.15}.fancytree-container.fancytree-rtl span.fancytree-connector,.fancytree-container.fancytree-rtl span.fancytree-drag-helper-img,.fancytree-container.fancytree-rtl span.fancytree-expander,.fancytree-container.fancytree-rtl span.fancytree-icon{background-image:url(../skin-xp/icons-rtl.gif)}.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:none}.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-n span.fancytree-expander,.fancytree-container.fancytree-rtl.fancytree-connectors .fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-xp/icons-rtl.gif)}ul.fancytree-container.fancytree-rtl ul{padding:0 16px 0 0}ul.fancytree-container.fancytree-rtl.fancytree-connectors li{background-position:right 0;background-image:url(../skin-xp/vline-rtl.gif)}ul.fancytree-container.fancytree-rtl li.fancytree-lastsib,ul.fancytree-container.fancytree-rtl.fancytree-no-connector>li{background-image:none}#fancytree-drop-marker.fancytree-rtl{background-image:url(../skin-xp/icons-rtl.gif)}table.fancytree-ext-table{font-family:tahoma,arial,helvetica;font-size:10pt;border-collapse:collapse}table.fancytree-ext-table span.fancytree-node{display:inline-block;box-sizing:border-box}table.fancytree-ext-table td.fancytree-status-merged{text-align:center;font-style:italic;color:silver}table.fancytree-ext-table tr.fancytree-statusnode-error td.fancytree-status-merged{color:red}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr.fancytree-active>td{background-color:#eee}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode>tbody>tr>td.fancytree-active-cell{background-color:#cbe8f6}table.fancytree-ext-table.fancytree-ext-ariagrid.fancytree-cell-mode.fancytree-cell-nav-mode>tbody>tr>td.fancytree-active-cell{background-color:#3875d7}table.fancytree-ext-columnview tbody tr td{position:relative;border:1px solid gray;vertical-align:top;overflow:auto}table.fancytree-ext-columnview tbody tr td>ul{padding:0}table.fancytree-ext-columnview tbody tr td>ul li{list-style-image:none;list-style-position:outside;list-style-type:none;-moz-background-clip:border;-moz-background-inline-policy:continuous;-moz-background-origin:padding;background-attachment:scroll;background-color:transparent;background-position:0 0;background-repeat:repeat-y;background-image:none;margin:0}table.fancytree-ext-columnview span.fancytree-node{position:relative;display:inline-block}table.fancytree-ext-columnview span.fancytree-node.fancytree-expanded{background-color:#e0e0e0}table.fancytree-ext-columnview span.fancytree-node.fancytree-active{background-color:#cbe8f6}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right{position:absolute;right:3px;background-position:0 -80px}table.fancytree-ext-columnview .fancytree-has-children span.fancytree-cv-right:hover{background-position:-16px -80px}.fancytree-ext-filter-dimm span.fancytree-node span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-submatch span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-dimm span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-dimm tr.fancytree-match span.fancytree-title{color:#000;font-weight:700}.fancytree-ext-filter-hide span.fancytree-node.fancytree-hide,.fancytree-ext-filter-hide tr.fancytree-hide{display:none}.fancytree-ext-filter-hide span.fancytree-node.fancytree-submatch span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-submatch span.fancytree-title{color:silver;font-weight:lighter}.fancytree-ext-filter-hide span.fancytree-node.fancytree-match span.fancytree-title,.fancytree-ext-filter-hide tr.fancytree-match span.fancytree-title{color:#000;font-weight:400}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-match span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-match span.fancytree-expander{visibility:hidden}.fancytree-ext-filter-hide-expanders span.fancytree-node.fancytree-submatch span.fancytree-expander,.fancytree-ext-filter-hide-expanders tr.fancytree-submatch span.fancytree-expander{visibility:visible}.fancytree-ext-childcounter span.fancytree-custom-icon,.fancytree-ext-childcounter span.fancytree-icon,.fancytree-ext-filter span.fancytree-custom-icon,.fancytree-ext-filter span.fancytree-icon{position:relative}.fancytree-ext-childcounter span.fancytree-childcounter,.fancytree-ext-filter span.fancytree-childcounter{color:#fff;background:#777;border:1px solid gray;position:absolute;top:-6px;right:-6px;min-width:10px;height:10px;line-height:1;vertical-align:baseline;border-radius:10px;padding:2px;text-align:center;font-size:9px}ul.fancytree-ext-wide{position:relative;min-width:100%;z-index:2;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}ul.fancytree-ext-wide span.fancytree-node>span{position:relative;z-index:2}ul.fancytree-ext-wide span.fancytree-node span.fancytree-title{position:absolute;z-index:1;left:0;min-width:100%;margin-left:0;margin-right:0;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.fancytree-ext-fixed-wrapper .fancytree-ext-fixed-hidden{display:none}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-bottom{border-bottom:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-scroll-border-right{border-right:3px solid rgba(0,0,0,.75)}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tl{position:absolute;overflow:hidden;z-index:3;top:0;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-tr{position:absolute;overflow:hidden;z-index:2;top:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-bl{position:absolute;overflow:hidden;z-index:2;left:0}.fancytree-ext-fixed-wrapper div.fancytree-ext-fixed-wrapper-br{position:absolute;overflow:scroll;z-index:1}ul.fancytree-container li{background-image:url(../skin-xp/vline.gif);background-position:0 0}ul.fancytree-container.fancytree-rtl li{background-position:right 0;background-image:url(../vline-rtl.gif)}ul.fancytree-container.fancytree-rtl .fancytree-exp-n span.fancytree-expander{background-image:url(../icons-rtl.gif);background-position:0 -64px}ul.fancytree-container.fancytree-rtl .fancytree-exp-nl span.fancytree-expander{background-image:url(../icons-rtl.gif);background-position:-16px -64px}ul.fancytree-container li.fancytree-lastsib{background-image:none}ul.fancytree-no-connector>li{background-image:none}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander{background-image:url(../skin-xp/icons.gif)}.fancytree-exp-n span.fancytree-expander,.fancytree-exp-n span.fancytree-expander:hover{background-position:0 -64px}.fancytree-exp-nl span.fancytree-expander,.fancytree-exp-nl span.fancytree-expander:hover{background-position:-16px -64px}span.fancytree-title{border:0 solid transparent}span.fancytree-title:hover{background-color:#f2f7fd;border-color:#b8d6fb}span.fancytree-focused span.fancytree-title{outline:1px dotted #000;background-color:#efebde}.fancytree-folder span.fancytree-title{font-weight:700}.fancytree-selected span.fancytree-title{color:green;font-style:italic}.fancytree-active span.fancytree-title{background-color:#3169c6!important;color:#fff!important}table.fancytree-ext-table{border-collapse:collapse}table.fancytree-ext-table tbody tr.fancytree-focused{background-color:#99defd}table.fancytree-ext-table tbody tr.fancytree-active{background-color:#4169e1}table.fancytree-ext-table tbody tr.fancytree-selected{background-color:#99fdde}
\ No newline at end of file
diff --git a/package.json b/package.json
index 0ab10435..4732fa0b 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "jquery.fancytree",
   "title": "jQuery Fancytree Plugin",
   "description": "JavaScript tree view / tree grid plugin with support for keyboard, inline editing, filtering, checkboxes, drag'n'drop, and lazy loading",
-  "version": "2.30.3-0",
+  "version": "2.31.0",
   "homepage": "https://github.com/mar10/fancytree",
   "author": {
     "name": "Martin Wendt",
@@ -72,4 +72,4 @@
   "scripts": {
     "test": "grunt ci --verbose"
   }
-}
+}
\ No newline at end of file