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      1 // Copyright (c) 2011 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_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_DELEGATE_H_
      6 #define UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_DELEGATE_H_
      7 
      8 namespace views {
      9 
     10 class MenuItemView;
     11 
     12 // This is internal as there should be no need for usage of this class outside
     13 // of views.
     14 namespace internal {
     15 
     16 // Used by MenuController to notify of interesting events that are intended for
     17 // the class using MenuController. This is implemented by MenuRunnerImpl.
     18 class MenuControllerDelegate {
     19  public:
     20   enum NotifyType {
     21     NOTIFY_DELEGATE,
     22     DONT_NOTIFY_DELEGATE
     23   };
     24 
     25   // Invoked when MenuController closes a menu and the MenuController was
     26   // configured for drop (MenuRunner::FOR_DROP).
     27   virtual void DropMenuClosed(NotifyType type, MenuItemView* menu) = 0;
     28 
     29   // Invoked when the MenuDelegate::GetSiblingMenu() returns non-NULL.
     30   virtual void SiblingMenuCreated(MenuItemView* menu) = 0;
     31 
     32  protected:
     33   virtual ~MenuControllerDelegate() {}
     34 };
     35 
     36 }  // namespace internal
     37 
     38 }  // namespace view
     39 
     40 #endif  // UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_DELEGATE_H_
     41