DevTools: [Elements] Implement "Copy CSS Path" context menu item for elements

Source/devtools/front_end/ElementsTreeOutline.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 1315 matching lines @@
         var attribute = event.target.enclosingNodeOrSelfWithClass("webkit-html-attribute");
         var newAttribute = event.target.enclosingNodeOrSelfWithClass("add-attribute");
         if (attribute && !newAttribute)
             contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Edit attribute" : "Edit Attribute"), this._startEditingAttribute.bind(this, attribute, event.target));
         contextMenu.appendSeparator();
         if (this.treeOutline._setPseudoClassCallback) {
             var pseudoSubMenu = contextMenu.appendSubMenuItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Force element state" : "Force Element State"));
             this._populateForcedPseudoStateItems(pseudoSubMenu);
             contextMenu.appendSeparator();
         }
-
         this._populateNodeContextMenu(contextMenu);
         this.treeOutline._populateContextMenu(contextMenu, this._node);
         this._populateScrollIntoView(contextMenu);
     },
 
     /**
      * @param {WebInspector.ContextMenu} contextMenu
      */
     _populateScrollIntoView: function(contextMenu)
     {
@@ skipping 17 matching lines @@
         contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Edit text" : "Edit Text"), this._startEditingTextNode.bind(this, textNode));
         this._populateNodeContextMenu(contextMenu);
     },
 
     _populateNodeContextMenu: function(contextMenu)
     {
         // Add free-form node-related actions.
         var openTagElement = this.treeOutline.getCachedTreeElement(this.representedObject) || this;
         contextMenu.appendItem(WebInspector.UIString("Edit as HTML"), openTagElement._editAsHTML.bind(openTagElement));
         contextMenu.appendItem(WebInspector.UIString("Copy as HTML"), this._copyHTML.bind(this));
+
+        // Place it here so that all "Copy"-ing items stick together.
+        if (this.representedObject.nodeType() === Node.ELEMENT_NODE)
+            contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Copy CSS path" : "Copy CSS Path"), this._copyCSSPath.bind(this));
         contextMenu.appendItem(WebInspector.UIString("Copy XPath"), this._copyXPath.bind(this));
         contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Delete node" : "Delete Node"), this.remove.bind(this));
         contextMenu.appendItem(WebInspector.UIString(WebInspector.useLowerCaseMenuTitles() ? "Inspect DOM properties" : "Inspect DOM Properties"), this._inspectDOMProperties.bind(this));
     },
 
     _startEditing: function()
     {
         if (this.treeOutline.selectedDOMNode() !== this._node)
             return;
 
@@ skipping 793 matching lines @@
         }
 
         node.getOuterHTML(this._startEditingAsHTML.bind(this, commitChange));
     },
 
     _copyHTML: function()
     {
         this._node.copyNode();
     },
 
+    _copyCSSPath: function()
+    {
+        this._node.copyCSSPath(true);
+    },
+
     _copyXPath: function()
     {
         this._node.copyXPath(true);
     },
 
     _inspectDOMProperties: function()
     {
         WebInspector.RemoteObject.resolveNode(this._node, "console", callback);
 
         /**
@@ skipping 253 matching lines @@
  * @constructor
  * @param {boolean} isUpdated
  * @param {WebInspector.DOMNode=} parent
  */
 WebInspector.ElementsTreeUpdater.UpdateEntry = function(isUpdated, parent)
 {
     this.isUpdated = isUpdated;
     if (parent)
         this.parent = parent;
 }