chrome/browser/android/provider/bookmark_model_observer_task.h

   1 // Copyright (c) 2012 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_ANDROID_PROVIDER_BOOKMARK_MODEL_OBSERVER_TASK_H_
   6 #define CHROME_BROWSER_ANDROID_PROVIDER_BOOKMARK_MODEL_OBSERVER_TASK_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "components/bookmarks/browser/bookmark_model_observer.h"
  11
  12 // Base class for synchronous tasks that involve the bookmark model.
  13 // Ensures the model has been loaded before accessing it.
  14 // Must not be created from the UI thread.
  15 class BookmarkModelTask {
  16  public:
  17   explicit BookmarkModelTask(BookmarkModel* model);
  18   BookmarkModel* model() const;
  19
  20  private:
  21   BookmarkModel* model_;
  22
  23   DISALLOW_COPY_AND_ASSIGN(BookmarkModelTask);
  24 };
  25
  26 // Base class for bookmark model tasks that observe for model updates.
  27 class BookmarkModelObserverTask : public BookmarkModelTask,
  28                                   public BookmarkModelObserver {
  29  public:
  30   explicit BookmarkModelObserverTask(BookmarkModel* bookmark_model);
  31   virtual ~BookmarkModelObserverTask();
  32
  33   // BookmarkModelObserver:
  34   virtual void BookmarkModelLoaded(BookmarkModel* model,
  35                                    bool ids_reassigned) override;
  36   virtual void BookmarkNodeMoved(BookmarkModel* model,
  37                                  const BookmarkNode* old_parent,
  38                                  int old_index,
  39                                  const BookmarkNode* new_parent,
  40                                  int new_index) override;
  41   virtual void BookmarkNodeAdded(BookmarkModel* model,
  42                                  const BookmarkNode* parent,
  43                                  int index) override;
  44   virtual void BookmarkNodeRemoved(BookmarkModel* model,
  45                                    const BookmarkNode* parent,
  46                                    int old_index,
  47                                    const BookmarkNode* node,
  48                                    const std::set<GURL>& removed_urls) override;
  49   virtual void BookmarkAllUserNodesRemoved(
  50       BookmarkModel* model,
  51       const std::set<GURL>& removed_urls) override;
  52   virtual void BookmarkNodeChanged(BookmarkModel* model,
  53                                    const BookmarkNode* node) override;
  54   virtual void BookmarkNodeFaviconChanged(BookmarkModel* model,
  55                                           const BookmarkNode* node) override;
  56   virtual void BookmarkNodeChildrenReordered(BookmarkModel* model,
  57                                              const BookmarkNode* node) override;
  58
  59  private:
  60   DISALLOW_COPY_AND_ASSIGN(BookmarkModelObserverTask);
  61 };
  62
  63 #endif  // CHROME_BROWSER_ANDROID_PROVIDER_BOOKMARK_MODEL_OBSERVER_TASK_H_