(#109) Provide zoom type to hide negative coordinate space (#126)

Author: tomlyn

LICENSE

@@ -199,3 +199,38 @@
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
+
+------------------------------------------------------------------------------------
+This product bundles various third-party components under other open source licenses.
+This section summarizes those components and their licenses.
+------------------------------------------------------------------------------------
+
+d3-zoom extension
+
+Copyright 2010-2016 Mike Bostock
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the author nor the names of contributors may be used to
+  endorse or promote products derived from this software without specific prior
+  written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

canvas_modules/common-canvas/src/common-canvas/canvas-controller.js

@@ -79,6 +79,7 @@ export default class CanvasController {
 			enableDisplayFullLabelOnHover: false,
 			enableDropZoneOnExternalDrag: false,
 			enableZoomIntoSubFlows: false,
+			enableZoomType: "Regular",
 			enableSaveZoom: "None",
 			enableSnapToGridType: "None",
 			enableSnapToGridX: null,

canvas_modules/common-canvas/src/common-canvas/constants/canvas-constants.js

@@ -34,8 +34,8 @@ _defineConstant("NOTIFICATION_ICON", "notificationCounterIcon");
 
 _defineConstant("DEFAULT_NOTIFICATION_HEADER", "Notifications");
 
-_defineConstant("MOUSE_INTERACTION", "Mouse");
-_defineConstant("TRACKPAD_INTERACTION", "Trackpad");
+_defineConstant("INTERACTION_MOUSE", "Mouse");
+_defineConstant("INTERACTION_TRACKPAD", "Trackpad");
 
 _defineConstant("LINK_TYPE_CURVE", "Curve");
 _defineConstant("LINK_TYPE_ELBOW", "Elbow");

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/.eslintrc.js

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2017-2020 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+module.exports = {
+	extends: "eslint-config-canvas",
+	rules: {
+		// Allow snake_case, but only for object properties e.g. myObj.param_name
+		"camelcase": [
+			"error",
+			{ "properties": "never" }
+		],
+		"max-len": [2, 180, 4],
+		"id-length": ["error", { "min": 1 }],
+		"indent": "off",
+		"object-curly-spacing": "off",
+		"no-shadow": "off",
+		"no-invalid-this": "off",
+		"consistent-this": "off",
+		"no-nested-ternary": "off",
+		"one-var": "off",
+		"sort-vars": "off",
+		"prefer-rest-params": "off",
+		"no-eq-null": "off",
+		"eqeqeq": "off",
+		"newline-per-chained-call": "off",
+		"one-var-declaration-per-line": "off",
+		"no-param-reassign": "off",
+		"no-implicit-coercion": "off",
+		"brace-style": "off",
+		"curly": "off",
+		"no-unused-expressions": "off",
+		"no-sequences": "off",
+		"no-return-assign": "off",
+		"max-len": "off",
+		"prefer-spread": "off",
+		"no-bitwise": "off",
+		"sort-imports": "off",
+		"no-undef": "off"
+	},
+	env: {
+		jest: true
+	},
+	parserOptions: {
+		"sourceType": "module"
+	}
+};

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/LICENSE

@@ -0,0 +1,27 @@
+Copyright 2010-2016 Mike Bostock
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the author nor the names of contributors may be used to
+  endorse or promote products derived from this software without specific prior
+  written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/src/constant.js

@@ -0,0 +1,5 @@
+export default function(x) {
+  return function() {
+    return x;
+  };
+}

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/src/event.js

@@ -0,0 +1,5 @@
+export default function ZoomEvent(target, type, transform) {
+  this.target = target;
+  this.type = type;
+  this.transform = transform;
+}

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/src/index.js

@@ -0,0 +1,2 @@
+export {default as zoom} from "./zoom.js";
+export {default as zoomTransform, identity as zoomIdentity} from "./transform.js";

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/src/noevent.js

@@ -0,0 +1,10 @@
+import {event} from "d3-selection";
+
+export function nopropagation() {
+  event.stopImmediatePropagation();
+}
+
+export default function() {
+  event.preventDefault();
+  event.stopImmediatePropagation();
+}

canvas_modules/common-canvas/src/common-canvas/d3-zoom-extension/src/transform.js

@@ -0,0 +1,51 @@
+export function Transform(k, x, y) {
+  this.k = k;
+  this.x = x;
+  this.y = y;
+}
+
+Transform.prototype = {
+  constructor: Transform,
+  scale: function(k) {
+    return k === 1 ? this : new Transform(this.k * k, this.x, this.y);
+  },
+  translate: function(x, y) {
+    return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y);
+  },
+  apply: function(point) {
+    return [point[0] * this.k + this.x, point[1] * this.k + this.y];
+  },
+  applyX: function(x) {
+    return x * this.k + this.x;
+  },
+  applyY: function(y) {
+    return y * this.k + this.y;
+  },
+  invert: function(location) {
+    return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k];
+  },
+  invertX: function(x) {
+    return (x - this.x) / this.k;
+  },
+  invertY: function(y) {
+    return (y - this.y) / this.k;
+  },
+  rescaleX: function(x) {
+    return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x));
+  },
+  rescaleY: function(y) {
+    return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y));
+  },
+  toString: function() {
+    return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")";
+  }
+};
+
+export var identity = new Transform(1, 0, 0);
+
+transform.prototype = Transform.prototype;
+
+export default function transform(node) {
+  while (!node.__zoom) if (!(node = node.parentNode)) return identity;
+  return node.__zoom;
+}