components/enhanced_bookmarks/enhanced_bookmark_model_observer.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_
   6 #define COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_
   7
   8 #include <string>
   9
  10 namespace bookmarks {
  11 class BookmarkNode;
  12 }
  13
  14 namespace enhanced_bookmarks {
  15
  16 class EnhancedBookmarkModelObserver {
  17  public:
  18   // Called when the model has finished loading.
  19   virtual void EnhancedBookmarkModelLoaded() = 0;
  20
  21   // Called from EnhancedBookmarkModel::ShutDown.
  22   virtual void EnhancedBookmarkModelShuttingDown() = 0;
  23
  24   // Called when a node is added to the model.
  25   virtual void EnhancedBookmarkAdded(const bookmarks::BookmarkNode* node) = 0;
  26
  27   // Called when a node is removed from the model.
  28   virtual void EnhancedBookmarkRemoved(const bookmarks::BookmarkNode* node) = 0;
  29
  30   // Called when a node has changed.
  31   virtual void EnhancedBookmarkNodeChanged(
  32       const bookmarks::BookmarkNode* node) = 0;
  33
  34   // Called when all user editable nodes are removed from the model.
  35   virtual void EnhancedBookmarkAllUserNodesRemoved() = 0;
  36
  37   // Called when the remote id of a node changes. If |remote_id| is empty, the
  38   // remote id has been cleared. This could happen if multiple nodes with the
  39   // same remote id has been detected.
  40   virtual void EnhancedBookmarkRemoteIdChanged(
  41       const bookmarks::BookmarkNode* node,
  42       const std::string& old_remote_id,
  43       const std::string& remote_id) {}
  44
  45  protected:
  46   virtual ~EnhancedBookmarkModelObserver() {}
  47 };
  48
  49 }  // namespace enhanced_bookmarks
  50
  51 #endif  // COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_