DevTools: [Elements] Do not copy nodes if there is a non-collapsed selection

Source/devtools/front_end/elements/ElementsPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 1199 matching lines @@
     {
         var treeOutline = this._treeOutlineForNode(node);
         return /** @type {?WebInspector.ElementsTreeElement} */ (treeOutline.findTreeElement(node));
     },
 
     /**
      * @param {!Event} event
      */
     handleCopyEvent: function(event)
     {
+        if (!WebInspector.currentFocusElement().enclosingNodeOrSelfWithClass("elements-tree-outline"))

[aandrey, 2014/07/29 13:38:25]

WebInspector.currentFocusElement() can return undefined

+            return;
         var treeOutline = this._treeOutlineForNode(this.selectedDOMNode());
         if (treeOutline)
             treeOutline.handleCopyOrCutKeyboardEvent(false, event);
     },
 
     /**
      * @param {!Event} event
      */
     handleCutEvent: function(event)
     {
@@ skipping 302 matching lines @@
         /**
          * @suppressReceiverCheck
          * @this {Element}
          */
         function parentElement()
         {
             return this.parentElement;
         }
     }
 }