Remove WebUI NTP on Android.

chrome/browser/ui/webui/ntp/android/bookmarks_handler.h

-// Copyright (c) 2012 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_UI_WEBUI_NTP_ANDROID_BOOKMARKS_HANDLER_H_
-#define CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_BOOKMARKS_HANDLER_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/task/cancelable_task_tracker.h"
-#include "base/values.h"
-#include "chrome/browser/android/bookmarks/managed_bookmarks_shim.h"
-#include "chrome/browser/android/bookmarks/partner_bookmarks_shim.h"
-#include "chrome/browser/favicon/favicon_service.h"
-#include "components/bookmarks/core/browser/base_bookmark_model_observer.h"
-#include "content/public/browser/web_ui_message_handler.h"
-
-// The handler for Javascript messages related to the bookmarks.
-//
-// In Javascript if getBookmarks() is called without any parameter, the 'Other
-// Bookmark' folder and bookmark bar's bookmarks and folders are returned.
-// If getBookmarks() is called with a valid bookmark folder id, the given
-// folder's bookmarks and sub folders of it are returned.
-//
-// All bookmarks and subfolder is returned by bookmarks() javascript callback
-// function.
-// The returned field 'folder' indicates whether the data is a folder. The
-// returned field 'root' indicates whether or not the bookmark list that was
-// returned is the root list or not.  Besides these fields, a folder has id
-// and title fields; A bookmark has url and title fields.
-//
-// A sample result looks like:
-// {
-//   title: 'Bookmark Bar',
-//   id: '1',
-//   root: true,
-//   bookmarks: [
-//     {
-//       title: 'Cake',
-//       url: 'http://www.google.com',
-//       folder: false
-//     },
-//     {
-//       title: 'Puppies',
-//       folder: true,
-//       id: '2'
-//     }
-//   ]
-// }
-class BookmarksHandler : public content::WebUIMessageHandler,
-                         public BaseBookmarkModelObserver,
-                         public PartnerBookmarksShim::Observer,
-                         public ManagedBookmarksShim::Observer {
- public:
-  BookmarksHandler();
-  virtual ~BookmarksHandler();
-
-  // WebUIMessageHandler override and implementation.
-  virtual void RegisterMessages() OVERRIDE;
-
-  // Callback for the "getBookmarks" message.
-  void HandleGetBookmarks(const base::ListValue* args);
-  // Callback for the "deleteBookmark" message.
-  void HandleDeleteBookmark(const base::ListValue* args);
-  // Callback for the "editBookmark" message.
-  void HandleEditBookmark(const base::ListValue* args);
-  // Callback for the "createHomeScreenBookmarkShortcut" message.  Used when
-  // creating a shortcut on the home screen that should open the bookmark
-  // specified in |args|.
-  void HandleCreateHomeScreenBookmarkShortcut(const base::ListValue* args);
-
-  // Override the methods of BookmarkModelObserver
-  virtual void BookmarkModelLoaded(BookmarkModel* model,
-                                   bool ids_reassigned) OVERRIDE;
-  virtual void BookmarkModelChanged() OVERRIDE;
-  virtual void ExtensiveBookmarkChangesBeginning(BookmarkModel* model) OVERRIDE;
-  virtual void ExtensiveBookmarkChangesEnded(BookmarkModel* model) OVERRIDE;
-  virtual void BookmarkNodeRemoved(BookmarkModel* model,
-                                   const BookmarkNode* parent,
-                                   int old_index,
-                                   const BookmarkNode* node) OVERRIDE;
-  virtual void BookmarkAllNodesRemoved(BookmarkModel* model) OVERRIDE;
-  virtual void BookmarkNodeAdded(
-      BookmarkModel* model, const BookmarkNode* parent, int index) OVERRIDE;
-  virtual void BookmarkNodeChanged(BookmarkModel* model,
-                                   const BookmarkNode* node) OVERRIDE;
-
-  // Override the methods of PartnerBookmarksShim::Observer
-  virtual void PartnerShimChanged(PartnerBookmarksShim* shim) OVERRIDE;
-  virtual void PartnerShimLoaded(PartnerBookmarksShim* shim) OVERRIDE;
-  virtual void ShimBeingDeleted(PartnerBookmarksShim* shim) OVERRIDE;
-
-  // Override the methods of ManagedBookmarksShim::Observer
-  virtual void OnManagedBookmarksChanged() OVERRIDE;
-
- private:
-  // The bookmark model being observed (if it has been attached).
-  BookmarkModel* bookmark_model_;
-
-  // Information about the Partner bookmarks (must check for IsLoaded())
-  PartnerBookmarksShim* partner_bookmarks_shim_;
-
-  // Contains the bookmarks managed via enterprise policy.
-  scoped_ptr<ManagedBookmarksShim> managed_bookmarks_shim_;
-
-  // Whether the bookmark data has been requested by the UI yet.
-  bool bookmark_data_requested_;
-
-  // Indicates that extensive changes to the BookmarkModel is on-going.
-  bool extensive_changes_;
-
-  // Used for loading bookmark node.
-  base::CancelableTaskTracker cancelable_task_tracker_;
-
-  // Returns true iff bookmark model and partner bookmarks shim are loaded.
-  bool AreModelsLoaded() const;
-
-  // Notify the UI that a change occurred to the bookmark model.
-  void NotifyModelChanged(const base::DictionaryValue& status);
-
-  // Generates the string encoded ID to be used by the NTP.
-  std::string GetBookmarkIdForNtp(const BookmarkNode* node);
-
-  // Sets the necessary parent information in the response object to be sent
-  // to the UI renderer.
-  void SetParentInBookmarksResult(const BookmarkNode* parent,
-                                  base::DictionaryValue* result);
-
-  // Convert the given bookmark |node| into a dictionary format to be returned
-  // to JavaScript.
-  void PopulateBookmark(const BookmarkNode* node, base::ListValue* result);
-
-  // Given a bookmark folder node, |folder|, populate the |result| with the
-  // structured JavaScript-formatted data regarding the folder.
-  void PopulateBookmarksInFolder(const BookmarkNode* folder,
-                                 base::DictionaryValue* result);
-
-  // Sends all bookmarks and sub folders in the given folder back to the NTP.
-  void QueryBookmarkFolder(const BookmarkNode* node);
-
-  // Sends bookmark bar's bookmarks and sub folders and other folders back to
-  // NTP.
-  void QueryInitialBookmarks();
-
-  // Sends the result back to Javascript
-  void SendResult(const base::DictionaryValue& result);
-
-  // Called once the favicon is loaded during creation of the bookmark shortcuts
-  // and is available for use.
-  void OnShortcutFaviconDataAvailable(
-      const BookmarkNode* node,
-      const favicon_base::FaviconBitmapResult& bitmap_result);
-
-  // Looks at an optional bookmark ID in |args| and returns the corresponding
-  // node if found, otherwise returns NULL.
-  const BookmarkNode* GetNodeByID(const base::ListValue* args) const;
-
-  // Returns the parent of |node|, or NULL if it's the root node.
-  const BookmarkNode* GetParentOf(const BookmarkNode* node) const;
-
-  // Returns the title of |node|, possibly remapped (if a partner bookmark).
-  base::string16 GetTitle(const BookmarkNode* node) const;
-
-  // Returns true if the node is reachable.
-  bool IsReachable(const BookmarkNode* node) const;
-
-  // Returns true if |node| can be modified by the user.
-  bool IsEditable(const BookmarkNode* node) const;
-
-  // Returns true if |node| is the real root node (not the root node of the
-  // partner bookmarks shim nor the managed bookmark shim root).
-  bool IsRoot(const BookmarkNode* node) const;
-
-  DISALLOW_COPY_AND_ASSIGN(BookmarksHandler);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_BOOKMARKS_HANDLER_H_