ui/app_list/cocoa/apps_search_results_model_bridge.h

   1 // Copyright 2013 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 UI_APP_LIST_COCOA_APPS_SEARCH_RESULTS_MODEL_BRIDGE_H_
   6 #define UI_APP_LIST_COCOA_APPS_SEARCH_RESULTS_MODEL_BRIDGE_H_
   7
   8 #include "base/mac/scoped_nsobject.h"
   9 #include "base/memory/scoped_vector.h"
  10 #include "ui/app_list/app_list_model.h"
  11 #include "ui/base/models/list_model_observer.h"
  12
  13 @class NSMenu;
  14 @class NSTableView;
  15
  16 namespace app_list {
  17
  18 // Bridge observing the ListModel representing search results in the app list,
  19 // and updating the NSTableView where they are displayed.
  20 class AppsSearchResultsModelBridge : public ui::ListModelObserver {
  21  public:
  22   AppsSearchResultsModelBridge(AppListModel::SearchResults* results_model,
  23                                NSTableView* results_table_view);
  24   virtual ~AppsSearchResultsModelBridge();
  25
  26   // Returns the context menu for the item at |index| in the search results
  27   // model. A menu will be generated if it hasn't been previously requested.
  28   NSMenu* MenuForItem(size_t index);
  29
  30  private:
  31   // Lightweight observer to react to icon updates on individual results.
  32   class ItemObserver;
  33
  34   void UpdateItemObservers();
  35   void ReloadDataForItems(size_t start, size_t count) const;
  36
  37   // Overridden from ui::ListModelObserver:
  38   virtual void ListItemsAdded(size_t start, size_t count) OVERRIDE;
  39   virtual void ListItemsRemoved(size_t start, size_t count) OVERRIDE;
  40   virtual void ListItemMoved(size_t index, size_t target_index) OVERRIDE;
  41   virtual void ListItemsChanged(size_t start, size_t count) OVERRIDE;
  42
  43   AppListModel::SearchResults* results_;   // Weak. Owned by AppListModel.
  44   base::scoped_nsobject<NSTableView> table_view_;
  45   ScopedVector<ItemObserver> item_observers_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(AppsSearchResultsModelBridge);
  48 };
  49
  50 }  // namespace app_list
  51
  52 #endif  // UI_APP_LIST_COCOA_APPS_SEARCH_RESULTS_MODEL_BRIDGE_H_