Fix onchange handler handler.

blockly_compressed.js

@@ -1017,7 +1017,7 @@ Blockly.ContextMenu.hide=function(){Blockly.WidgetDiv.hideIfOwner(Blockly.Contex
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.BlockSvg=function(){this.svgGroup_=Blockly.createSvgElement("g",{},null);this.svgPathDark_=Blockly.createSvgElement("path",{"class":"blocklyPathDark",transform:"translate(1, 1)"},this.svgGroup_);this.svgPath_=Blockly.createSvgElement("path",{"class":"blocklyPath"},this.svgGroup_);this.svgPathLight_=Blockly.createSvgElement("path",{"class":"blocklyPathLight"},this.svgGroup_);this.svgPath_.tooltip=this;Blockly.Tooltip.bindMouseEvents(this.svgPath_);this.updateMovable()};
 goog.inherits(Blockly.BlockSvg,Blockly.Block);Blockly.BlockSvg.prototype.height=0;Blockly.BlockSvg.prototype.width=0;Blockly.BlockSvg.INLINE=-1;
-Blockly.BlockSvg.prototype.initSvg=function(){goog.asserts.assert(this.workspace.rendered,"Workspace is headless.");this.updateColour();for(var a=0,b;b=this.inputList[a];a++)b.init();this.mutator&&this.mutator.createIcon();Blockly.readOnly||Blockly.bindEvent_(this.getSvgRoot(),"mousedown",this,this.onMouseDown_);this.workspace.getCanvas().appendChild(this.getSvgRoot());goog.isFunction(this.onchange)&&Blockly.bindEvent_(workspace.getCanvas(),"blocklyWorkspaceChange",this,this.onchange)};
+Blockly.BlockSvg.prototype.initSvg=function(){goog.asserts.assert(this.workspace.rendered,"Workspace is headless.");this.updateColour();for(var a=0,b;b=this.inputList[a];a++)b.init();this.mutator&&this.mutator.createIcon();Blockly.readOnly||Blockly.bindEvent_(this.getSvgRoot(),"mousedown",this,this.onMouseDown_);this.workspace.getCanvas().appendChild(this.getSvgRoot());goog.isFunction(this.onchange)&&Blockly.bindEvent_(this.workspace.getCanvas(),"blocklyWorkspaceChange",this,this.onchange)};
 Blockly.BlockSvg.prototype.select=function(){Blockly.selected&&Blockly.selected.unselect();Blockly.selected=this;this.addSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")};Blockly.BlockSvg.prototype.unselect=function(){Blockly.selected=null;this.removeSelect();Blockly.fireUiEvent(this.workspace.getCanvas(),"blocklySelectChange")};Blockly.BlockSvg.prototype.mutator=null;Blockly.BlockSvg.prototype.comment=null;Blockly.BlockSvg.prototype.warning=null;
 Blockly.BlockSvg.prototype.getIcons=function(){var a=[];this.mutator&&a.push(this.mutator);this.comment&&a.push(this.comment);this.warning&&a.push(this.warning);return a};Blockly.BlockSvg.onMouseUpWrapper_=null;Blockly.BlockSvg.onMouseMoveWrapper_=null;
 Blockly.BlockSvg.terminateDrag_=function(){Blockly.BlockSvg.onMouseUpWrapper_&&(Blockly.unbindEvent_(Blockly.BlockSvg.onMouseUpWrapper_),Blockly.BlockSvg.onMouseUpWrapper_=null);Blockly.BlockSvg.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.BlockSvg.onMouseMoveWrapper_),Blockly.BlockSvg.onMouseMoveWrapper_=null);var a=Blockly.selected;if(2==Blockly.dragMode_&&a){var b=a.getRelativeToSurfaceXY();a.moveConnections_(b.x-a.startDragX,b.y-a.startDragY);delete a.draggedBubbles_;a.setDragging_(!1);

core/block_svg.js

@@ -89,8 +89,8 @@ Blockly.BlockSvg.prototype.initSvg = function() {
 
   // Bind an onchange function, if it exists.
   if (goog.isFunction(this.onchange)) {
-    Blockly.bindEvent_(workspace.getCanvas(), 'blocklyWorkspaceChange', this,
-        this.onchange);
+    Blockly.bindEvent_(this.workspace.getCanvas(), 'blocklyWorkspaceChange',
+        this, this.onchange);
   }
 };