ENYO-3019: Remove IE8 Support

Remove log

Remove platform ref

Author: jeremy.thomas

src/AlphaJumper/AlphaJumper.js

@@ -98,9 +98,7 @@ module.exports = kind(
 		this.tracking = true;
 		if (this.hasNode()) {
 			var b = this.node.getBoundingClientRect();
-			// IE8 does not return width
-			var w = (b.width === undefined) ? (b.right - b.left) : b.width;
-			this.x = b.left + w/2;
+			this.x = b.left + b.width/2;
 		}
 		dispatcher.capture(this);
 		this.track(event);

src/Arranger/Arranger.js

@@ -397,14 +397,7 @@ Arranger.positionControl = function (control, bounds, unit) {
 * @public
 */
 Arranger.opacifyControl = function (inControl, inOpacity) {
-	var o = inOpacity;
 	// FIXME: very high/low settings of opacity can cause a control to
 	// blink so cap this here.
-	o = o > 0.99 ? 1 : (o < 0.01 ? 0 : o);
-	// note: we only care about ie8
-	if (platform.ie < 9) {
-		inControl.applyStyle('filter', 'progid:DXImageTransform.Microsoft.Alpha(Opacity=' + (o * 100) + ')');
-	} else {
-		inControl.applyStyle('opacity', o);
-	}
+	inControl.applyStyle('opacity', inOpacity > 0.99 ? 1 : (inOpacity < 0.01 ? 0 : inOpacity));
 };

src/PanZoomView.js

@@ -6,7 +6,6 @@
 var
 	kind = require('enyo/kind'),
 	dom = require('enyo/dom'),
-	platform = require('enyo/platform'),
 	utils = require('enyo/utils'),
 	Animator = require('enyo/Animator'),
 	Scroller = require('enyo/Scroller');
@@ -214,7 +213,7 @@ module.exports = kind(
 	*/
 	components: [
 		{name: 'animator', kind: Animator, onStep: 'zoomAnimationStep', onEnd: 'zoomAnimationEnd'},
-		{name: 'viewport', style: 'overflow:hidden;min-height:100%;min-width:100%;', classes: 'enyo-fit', ongesturechange: 'gestureTransform', ongestureend: 'saveState', ontap: 'singleTap', ondblclick: 'doubleClick', onmousewheel: 'mousewheel', ondown: 'handleDown', components: [
+		{name: 'viewport', style: 'overflow:hidden;min-height:100%;min-width:100%;', classes: 'enyo-fit', ongesturechange: 'gestureTransform', ongestureend: 'saveState', ontap: 'singleTap', onmousewheel: 'mousewheel', ondown: 'handleDown', components: [
 			{name: 'content'}
 		]}
 	],
@@ -468,17 +467,8 @@ module.exports = kind(
 				params = utils.mixin({translate: this.bounds.left + 'px, ' + this.bounds.top + 'px'}, params);
 			}
 			dom.transform(this.$.content, params);
-		} else if (platform.ie) {
-			// IE8 does not support transforms, but filter should work
-			// http://www.useragentman.com/IETransformsTranslator/
-			var matrix = '"progid:DXImageTransform.Microsoft.Matrix(M11='+scale+', M12=0, M21=0, M22='+scale+', SizingMethod=\'auto expand\')"';
-			this.$.content.applyStyle('-ms-filter', matrix);
-			this.$.content.setBounds({width: this.bounds.width*scale + 'px', height: this.bounds.height*scale + 'px',
-					left:this.bounds.left + 'px', top:this.bounds.top + 'px'});
-			this.$.content.applyStyle('width', scale*this.bounds.width);
-			this.$.content.applyStyle('height', scale*this.bounds.height);
 		} else {
-			// ...no transforms and not IE... there's nothin' I can do.
+			// ...no transforms means there's nothin' I can do.
 		}
 
 		//adjust scroller to new position that keeps ratio with the new content size
@@ -547,26 +537,6 @@ module.exports = kind(
 		this.ratioX = this.ratioY = null;
 	},
 
-	/**
-	* Normalizes the event and forwards it to
-	* [singleTap()]{@link module:layout/PanZoomView~PanZoomView#singleTap}.
-	*
-	* IE 8 Only
-	*
-	* @private
-	*/
-	doubleClick: function (sender, event) {
-		//IE 8 fix; dblclick fires rather than multiple successive click events
-		if (platform.ie==8) {
-			this.tapped = true;
-			//normalize event
-			event.pageX = event.clientX + event.target.scrollLeft;
-			event.pageY = event.clientY + event.target.scrollTop;
-			this.singleTap(sender, event);
-			event.preventDefault();
-		}
-	},
-
 	/**
 	* Simulates double-tap by watching for two taps within 300ms of each other.
 	*

src/Slideable.js

@@ -336,8 +336,6 @@ module.exports = kind(
 		var s = dom.getComputedStyle(node);
 		if (s) {
 			return s.getPropertyValue(boundary);
-		} else if (node && node.currentStyle) {
-			return node.currentStyle[boundary];
 		}
 		return '0';
 	},