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      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 ASH_SHELF_SHELF_ALIGNMENT_MENU_H_
      6 #define ASH_SHELF_SHELF_ALIGNMENT_MENU_H_
      7 
      8 #include "ash/ash_export.h"
      9 #include "base/basictypes.h"
     10 #include "ui/base/models/simple_menu_model.h"
     11 
     12 namespace aura {
     13 class RootWindow;
     14 }
     15 
     16 namespace ash {
     17 
     18 // Submenu for choosing the alignment of the launcher.
     19 class ASH_EXPORT ShelfAlignmentMenu : public ui::SimpleMenuModel,
     20                                       public ui::SimpleMenuModel::Delegate {
     21  public:
     22   explicit ShelfAlignmentMenu(aura::Window* root);
     23   virtual ~ShelfAlignmentMenu();
     24 
     25   // ui::SimpleMenuModel::Delegate overrides:
     26   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
     27   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
     28   virtual bool GetAcceleratorForCommandId(
     29       int command_id,
     30       ui::Accelerator* accelerator) OVERRIDE;
     31   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
     32 
     33  private:
     34   enum MenuItem {
     35     // Offset so as not to interfere with other menus.
     36     MENU_ALIGN_LEFT = 500,
     37     MENU_ALIGN_RIGHT,
     38     MENU_ALIGN_BOTTOM,
     39   };
     40 
     41   aura::Window* root_window_;
     42 
     43   DISALLOW_COPY_AND_ASSIGN(ShelfAlignmentMenu);
     44 };
     45 
     46 }  // namespace ash
     47 
     48 #endif  // ASH_SHELF_SHELF_ALIGNMENT_MENU_H_
     49