1 // Copyright (c) 2009 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 CHROME_BROWSER_BOOKMARKS_BOOKMARK_MODEL_OBSERVER_H_ 6 #define CHROME_BROWSER_BOOKMARKS_BOOKMARK_MODEL_OBSERVER_H_ 7 #pragma once 8 9 class BookmarkModel; 10 class BookmarkNode; 11 12 // Observer for the BookmarkModel. 13 class BookmarkModelObserver { 14 public: 15 // Invoked when the model has finished loading. 16 virtual void Loaded(BookmarkModel* model) = 0; 17 18 // Invoked from the destructor of the BookmarkModel. 19 virtual void BookmarkModelBeingDeleted(BookmarkModel* model) {} 20 21 // Invoked when a node has moved. 22 virtual void BookmarkNodeMoved(BookmarkModel* model, 23 const BookmarkNode* old_parent, 24 int old_index, 25 const BookmarkNode* new_parent, 26 int new_index) = 0; 27 28 // Invoked when a node has been added. 29 virtual void BookmarkNodeAdded(BookmarkModel* model, 30 const BookmarkNode* parent, 31 int index) = 0; 32 33 // Invoked when a node has been removed, the item may still be starred though. 34 // |parent| the parent of the node that was removed. 35 // |old_index| the index of the removed node in |parent| before it was 36 // removed. 37 // |node| is the node that was removed. 38 virtual void BookmarkNodeRemoved(BookmarkModel* model, 39 const BookmarkNode* parent, 40 int old_index, 41 const BookmarkNode* node) = 0; 42 43 // Invoked when the title, url or favicon of a node has changed. 44 virtual void BookmarkNodeChanged(BookmarkModel* model, 45 const BookmarkNode* node) = 0; 46 47 // Invoked when a favicon has finished loading. 48 virtual void BookmarkNodeFaviconLoaded(BookmarkModel* model, 49 const BookmarkNode* node) = 0; 50 51 // Invoked when the children (just direct children, not descendants) of 52 // |node| have been reordered in some way, such as sorted. 53 virtual void BookmarkNodeChildrenReordered(BookmarkModel* model, 54 const BookmarkNode* node) = 0; 55 56 // Invoked before a batch import begins. This tells UI intensive observers 57 // to wait until the updates finish to update themselves. 58 // These methods should only be used for imports. Observers should still 59 // respond to BookmarkNodeRemoved immediately, to avoid holding onto 60 // stale node pointers. 61 virtual void BookmarkImportBeginning(BookmarkModel* model) {} 62 63 // Invoked after a batch import finishes. This tells observers to update 64 // themselves if they were waiting for the update to finish. 65 virtual void BookmarkImportEnding(BookmarkModel* model) {} 66 67 protected: 68 virtual ~BookmarkModelObserver() {} 69 }; 70 71 #endif // CHROME_BROWSER_BOOKMARKS_BOOKMARK_MODEL_OBSERVER_H_ 72
