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 "chrome/browser/bookmarks/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 Loaded(BookmarkModel* model, bool ids_reassigned) OVERRIDE;
  35   virtual void BookmarkNodeMoved(BookmarkModel* model,
  36                                  const BookmarkNode* old_parent,
  37                                  int old_index,
  38                                  const BookmarkNode* new_parent,
  39                                  int new_index) OVERRIDE;
  40   virtual void BookmarkNodeAdded(BookmarkModel* model,
  41                                  const BookmarkNode* parent,
  42                                  int index) OVERRIDE;
  43   virtual void BookmarkNodeRemoved(BookmarkModel* model,
  44                                    const BookmarkNode* parent,
  45                                    int old_index,
  46                                    const BookmarkNode* node) OVERRIDE;
  47   virtual void BookmarkAllNodesRemoved(BookmarkModel* model) OVERRIDE;
  48   virtual void BookmarkNodeChanged(BookmarkModel* model,
  49                                    const BookmarkNode* node) OVERRIDE;
  50   virtual void BookmarkNodeFaviconChanged(BookmarkModel* model,
  51                                           const BookmarkNode* node) OVERRIDE;
  52   virtual void BookmarkNodeChildrenReordered(BookmarkModel* model,
  53                                              const BookmarkNode* node) OVERRIDE;
  54
  55  private:
  56   DISALLOW_COPY_AND_ASSIGN(BookmarkModelObserverTask);
  57 };
  58
  59 #endif  // CHROME_BROWSER_ANDROID_PROVIDER_BOOKMARK_MODEL_OBSERVER_TASK_H_