ui/views/controls/menu/menu_controller_delegate.h

   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_