chrome/browser/ui/ash/launcher/launcher_application_menu_item_model.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_UI_ASH_LAUNCHER_LAUNCHER_APPLICATION_MENU_ITEM_MODEL_H_
   6 #define CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_APPLICATION_MENU_ITEM_MODEL_H_
   7
   8 #include "ash/shelf/shelf_menu_model.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/scoped_vector.h"
  11
  12 class ChromeLauncherAppMenuItem;
  13 class LauncherApplicationMenuItemModelTestAPI;
  14
  15 // A list of the elements which makes up a simple menu description.
  16 typedef ScopedVector<ChromeLauncherAppMenuItem> ChromeLauncherAppMenuItems;
  17
  18 // A menu model that builds the contents of a menu for a launcher item
  19 // containing a list of running applications.
  20 class LauncherApplicationMenuItemModel : public ash::ShelfMenuModel,
  21                                          public ui::SimpleMenuModel::Delegate {
  22  public:
  23   explicit LauncherApplicationMenuItemModel(
  24       ChromeLauncherAppMenuItems item_list);
  25   ~LauncherApplicationMenuItemModel() override;
  26
  27   // Overridden from ash::ShelfMenuModel:
  28   bool IsCommandActive(int command_id) const override;
  29
  30   // Overridden from ui::SimpleMenuModel::Delegate:
  31   bool IsCommandIdChecked(int command_id) const override;
  32   bool IsCommandIdEnabled(int command_id) const override;
  33   bool GetAcceleratorForCommandId(int command_id,
  34                                   ui::Accelerator* accelerator) override;
  35   void ExecuteCommand(int command_id, int event_flags) override;
  36
  37  private:
  38   friend class LauncherApplicationMenuItemModelTestAPI;
  39
  40   void Build();
  41
  42   // Returns the number of menu items that are enabled.
  43   int GetNumMenuItemsEnabled() const;
  44
  45   // Records UMA metrics when a menu item is selected.
  46   void RecordMenuItemSelectedMetrics(int command_id,
  47                                      int num_menu_items_enabled);
  48
  49   // The list of menu items as returned from the launcher controller.
  50   ChromeLauncherAppMenuItems launcher_items_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(LauncherApplicationMenuItemModel);
  53 };
  54
  55 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_APPLICATION_MENU_ITEM_MODEL_H_