apps_search_results_model_bridge.h revision 7dbb3d5cf0c15f500944d211057644d6a2f37371 
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
16namespace app_list {
17
18// Bridge observing the ListModel representing search results in the app list,
19// and updating the NSTableView where they are displayed.
20class 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_
53