Fix stylesheet lookup to get correct sheet.

blockly_compressed.js

@@ -1231,7 +1231,7 @@ Blockly.Toolbox.TreeNode=function(a,b,c,d){goog.ui.tree.TreeNode.call(this,b,c,d
 Blockly.Toolbox.TreeNode.prototype.onMouseDown=function(a){this.hasChildren()&&this.isUserCollapsible_?(this.toggle(),this.select()):this.isSelected()?this.getTree().setSelectedItem(null):this.select();this.updateRow()};Blockly.Toolbox.TreeNode.prototype.onDoubleClick_=function(a){};Blockly.Toolbox.TreeSeparator=function(){Blockly.Toolbox.TreeNode.call(this,null,"",Blockly.Toolbox.TreeSeparator.CONFIG_)};goog.inherits(Blockly.Toolbox.TreeSeparator,Blockly.Toolbox.TreeNode);
 Blockly.Toolbox.TreeSeparator.CONFIG_={cssTreeRow:"blocklyTreeSeparator"};
 // Copyright 2013 Google Inc.  Apache License 2.0
-Blockly.Css={};Blockly.Css.Cursor={OPEN:"handopen",CLOSED:"handclosed",DELETE:"handdelete"};Blockly.Css.currentCursor_="";Blockly.Css.styleSheet_=null;Blockly.Css.mediaPath_="";Blockly.Css.inject=function(){var a=Blockly.Css.CONTENT.join("\n");Blockly.Css.mediaPath_=Blockly.pathToMedia.replace(/[\\\/]$/,"");a=a.replace(/<<<PATH>>>/g,Blockly.Css.mediaPath_);goog.cssom.addCssText(a);a=goog.cssom.getAllCssStyleSheets();Blockly.Css.styleSheet_=a[a.length-1];Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)};
+Blockly.Css={};Blockly.Css.Cursor={OPEN:"handopen",CLOSED:"handclosed",DELETE:"handdelete"};Blockly.Css.currentCursor_="";Blockly.Css.styleSheet_=null;Blockly.Css.mediaPath_="";Blockly.Css.inject=function(){var a=Blockly.Css.CONTENT.join("\n");Blockly.Css.mediaPath_=Blockly.pathToMedia.replace(/[\\\/]$/,"");a=a.replace(/<<<PATH>>>/g,Blockly.Css.mediaPath_);Blockly.Css.styleSheet_=goog.cssom.addCssText(a).sheet;Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN)};
 Blockly.Css.setCursor=function(a){if(!Blockly.readOnly&&Blockly.Css.currentCursor_!=a){Blockly.Css.currentCursor_=a;var b="url("+Blockly.Css.mediaPath_+"/"+a+".cur) "+(a==Blockly.Css.Cursor.OPEN?"8 5":"7 3")+", auto";goog.cssom.replaceCssRule("",".blocklyDraggable {\n  cursor: "+b+";\n}\n",Blockly.Css.styleSheet_,0);for(var c=document.getElementsByClassName("blocklyToolboxDiv"),d=0,e;e=c[d];d++)e.style.cursor=a==Blockly.Css.Cursor.OPEN?"":b;Blockly.svg&&(Blockly.svg.style.cursor=a==Blockly.Css.Cursor.OPEN?
 "":b)}};
 Blockly.Css.CONTENT=[".blocklyDraggable {","}",".blocklySvg {","  background-color: #fff;","  border: 1px solid #ddd;","  overflow: hidden;","}",".blocklyWidgetDiv {","  position: absolute;","  display: none;","  z-index: 999;","}",".blocklyResizeSE {","  fill: #aaa;","  cursor: se-resize;","}",".blocklyResizeSW {","  fill: #aaa;","  cursor: sw-resize;","}",".blocklyResizeLine {","  stroke-width: 1;","  stroke: #888;","}",".blocklyHighlightedConnectionPath {","  stroke-width: 4px;","  stroke: #fc3;","  fill: none;",

core/css.js

@@ -71,9 +71,7 @@ Blockly.Css.inject = function() {
   // Strip off any trailing slash (either Unix or Windows).
   Blockly.Css.mediaPath_ = Blockly.pathToMedia.replace(/[\\\/]$/, '');
   text = text.replace(/<<<PATH>>>/g, Blockly.Css.mediaPath_);
-  goog.cssom.addCssText(text);
-  var sheets = goog.cssom.getAllCssStyleSheets();
-  Blockly.Css.styleSheet_ = sheets[sheets.length - 1];
+  Blockly.Css.styleSheet_ = goog.cssom.addCssText(text).sheet;
   Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);
 };