Initial version of an experimental Extensions Context Menu API....

chrome/browser/tab_contents/render_view_context_menu.h

Index: chrome/browser/tab_contents/render_view_context_menu.h
===================================================================
--- chrome/browser/tab_contents/render_view_context_menu.h	(revision 42220)
+++ chrome/browser/tab_contents/render_view_context_menu.h	(working copy)
@@ -1,15 +1,20 @@
-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_H_
 
+#include <map>
+#include <string>
+#include <vector>
+
 #include "base/string16.h"
 #include "chrome/common/page_transition_types.h"
 #include "webkit/glue/context_menu.h"
 #include "webkit/glue/window_open_disposition.h"
 
+class ExtensionMenuItem;
 class Profile;
 class TabContents;
 
@@ -89,7 +94,29 @@
   void AppendCopyItem();
   void AppendEditableItems();
   void AppendSearchProvider();
+  void AppendAllExtensionItems();
 
+  // When extensions have more than 1 top-level item or a single parent item
+  // with children, we will start a sub menu. In the case of 1 parent with
+  // children, we will remove the parent from |items| and insert the children
+  // into it. The |index| parameter is incremented if we start a submenu. This
+  // returns true if a submenu was started. If we had multiple top-level items
+  // that needed to be pushed into a submenu, we'll use |extension_name| as the
+  // title.
+  bool MaybeStartExtensionSubMenu(const string16& selection_text,
+                                  const std::string& extension_name,
+                                  std::vector<const ExtensionMenuItem*>* items,
+                                  int* index);
+
+  // Fills in |items| with matching items for extension with |extension_id|.
+  void GetItemsForExtension(const std::string& extension_id,
+                            std::vector<const ExtensionMenuItem*>* items);
+
+  // This is a helper function to append items for one particular extension.
+  // The |index| parameter is used for assigning id's, and is incremented for
+  // each item actually added.
+  void AppendExtensionItems(const std::string& extension_id, int* index);
+
   // Opens the specified URL string in a new tab.  If |in_current_window| is
   // false, a new window is created to hold the new tab.
   void OpenURL(const GURL& url,
@@ -110,10 +137,21 @@
 
   bool IsDevCommandEnabled(int id) const;
 
+  // Returns a (possibly truncated) version of the current selection text
+  // suitable or putting in the title of a menu item.
+  string16 PrintableSelectionText();
+
+  // Attempts to get an ExtensionMenuItem given the id of a context menu item.
+  ExtensionMenuItem* GetExtensionMenuItem(int id) const;
+
   // The destination URL to use if the user tries to search for or navigate to
   // a text selection.
   GURL selection_navigation_url_;
 
+  // Maps the id from a context menu item to the ExtensionMenuItem's internal
+  // id.
+  std::map<int, int> extension_item_map_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewContextMenu);
 };