iOS8+ fix

Author: louisameline

package.json

@@ -41,5 +41,5 @@
 	"scripts": {
 		"test": "echo \"Error: no test specified\" && exit 1"
 	},
-	"version": "4.0.4"
+	"version": "4.0.5"
 }

src/js/tooltipster.js

@@ -1814,7 +1814,6 @@ $.Tooltipster.prototype = {
 								});
 							});
 
-							
 							if (	self.__options.triggerClose.mouseleave
 								||	(self.__options.triggerClose.touchleave && env.hasTouchCapability)
 							) {
@@ -3148,12 +3147,14 @@ Ruler.prototype = {
 
 		this.__forceRedraw();
 
-		var tooltipBrc = this.__$tooltip[0].getBoundingClientRect(),
+		var tooltipBcr = this.__$tooltip[0].getBoundingClientRect(),
 			result = { size: {
-				// brc.width/height are not defined in IE8- but in this
-				// case, brc.right/bottom will have the same value
-				height: tooltipBrc.bottom,
-				width: tooltipBrc.right
+				// bcr.width/height are not defined in IE8- but in this
+				// case, bcr.right/bottom will have the same value
+				// except in iOS 8+ where tooltipBcr.bottom is wrong after scrolling
+				// for reasons yet to be determined
+				height: tooltipBcr.height || tooltipBcr.bottom,
+				width: tooltipBcr.right
 			}};
 
 		if (this.constraints) {
@@ -3170,20 +3171,20 @@ Ruler.prototype = {
 
 			var $content = this.__$tooltip.find('.tooltipster-content'),
 				height = this.__$tooltip.outerHeight(),
-				contentBrc = $content[0].getBoundingClientRect(),
+				contentBcr = $content[0].getBoundingClientRect(),
 				fits = {
 					height: height <= this.constraints.height,
 					width: (
 						// this condition accounts for min-width property that
 						// may apply
-						tooltipBrc.width <= this.constraints.width
+						tooltipBcr.width <= this.constraints.width
 							// the -1 is here because scrollWidth actually returns
-							// a rounded value, and may be greater than brc.width if
+							// a rounded value, and may be greater than bcr.width if
 							// it was rounded up. This may cause an issue for contents
 							// which actually really overflow  by 1px or so, but that
 							// should be rare. Not sure how to solve this efficiently.
 							// See http://blogs.msdn.com/b/ie/archive/2012/02/17/sub-pixel-rendering-and-the-css-object-model.aspx
-						&&	contentBrc.width >= $content[0].scrollWidth - 1
+						&&	contentBcr.width >= $content[0].scrollWidth - 1
 					)
 				};