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 class BookmarkNode;
  11
  12 namespace enhanced_bookmarks {
  13
  14 class EnhancedBookmarkModelObserver {
  15  public:
  16   // Called when the model has finished loading.
  17   virtual void EnhancedBookmarkModelLoaded() = 0;
  18
  19   // Called from EnhancedBookmarkModel::ShutDown.
  20   virtual void EnhancedBookmarkModelShuttingDown() = 0;
  21
  22   // Called when a node is added to the model.
  23   virtual void EnhancedBookmarkAdded(const BookmarkNode* node) = 0;
  24
  25   // Called when a node is removed from the model.
  26   virtual void EnhancedBookmarkRemoved(const BookmarkNode* node) = 0;
  27
  28   // Called when a node has changed.
  29   virtual void EnhancedBookmarkNodeChanged(const BookmarkNode* node) = 0;
  30
  31   // Called when all user editable nodes are removed from the model.
  32   virtual void EnhancedBookmarkAllUserNodesRemoved() = 0;
  33
  34   // Called when the remote id of a node changes. If |remote_id| is empty, the
  35   // remote id has been cleared. This could happen if multiple nodes with the
  36   // same remote id has been detected.
  37   virtual void EnhancedBookmarkRemoteIdChanged(const BookmarkNode* node,
  38                                                const std::string& old_remote_id,
  39                                                const std::string& remote_id) {};
  40
  41  protected:
  42   virtual ~EnhancedBookmarkModelObserver() {}
  43 };
  44
  45 }  // namespace enhanced_bookmarks
  46 #endif  // COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_