[ash] Add TYPE_DIALOG and its item's LauncherContextMenu

ash/shelf/shelf_item_context_menu.h

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ASH_SHELF_SHELF_ITEM_CONTEXT_MENU_H_
+#define ASH_SHELF_SHELF_ITEM_CONTEXT_MENU_H_
+
+#include "ash/shelf/shelf_alignment_menu.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+
+namespace aura {
+class Window;
+}
+
+namespace ash {
+
+class Shell;
+
+namespace internal {
+
+class ShelfWindowWatcherItemDelegate;
+
+// Context menu shown for an item created by ShelfWindowWatcher.
+class ShelfItemContextMenu : public ui::SimpleMenuModel,
+                             public ui::SimpleMenuModel::Delegate {
+ public:
+  ShelfItemContextMenu(ShelfWindowWatcherItemDelegate* item_delegate,
+                       aura::Window* root_window);
+
+  virtual ~ShelfItemContextMenu();
+
+  void Init();
+
+  // ui::SimpleMenuModel::Delegate overrides:
+  virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
+  virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
+  virtual bool GetAcceleratorForCommandId(
+      int command_id,
+      ui::Accelerator* accelerator) OVERRIDE;
+  virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
+
+ private:
+  enum MenuItem {
+    MENU_CLOSE,
+    MENU_AUTO_HIDE,
+    MENU_ALIGNMENT_MENU,
+#if defined(OS_CHROMEOS)
+    MENU_CHANGE_WALLPAPER,
+#endif
+  };
+
+  // Returns true if there is a full screen window.
+  bool IsFullScreenMode() const;
+
+  // Toggles ShelfAutoHideBehavior.
+  void ToggleShelfAutoHideBehavior() const;
+
+  // Owned by ShelfItemDelegateManager.
+  ShelfWindowWatcherItemDelegate* item_delegate_;
+
+  // Not owned.
+  aura::Window* root_window_;
+  ash::Shell* shell_;

[sky, 2013/12/16 21:09:44]

Why not use Shell::GetInstance() instead of caching this?

+
+  ash::ShelfAlignmentMenu shelf_alignment_menu_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShelfItemContextMenu);
+};
+
+}  // namespace internal
+}  // namespace ash
+
+#endif  // ASH_SHELF_SHELF_ITEM_CONTEXT_MENU_H_