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// Copyright 2014 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 UI_VIEWS_CONTROLS_MENU_MENU_MESSAGE_LOOP_H_
#define UI_VIEWS_CONTROLS_MENU_MENU_MESSAGE_LOOP_H_
#include "ui/gfx/native_widget_types.h"
namespace gfx {
class Point;
}
namespace ui {
class LocatedEvent;
}
namespace views {
class MenuController;
class Widget;
// Interface used by MenuController to run a nested message loop while
// showing a menu, allowing for platform specific implementations.
class MenuMessageLoop {
public:
virtual ~MenuMessageLoop() {}
// Create a platform specific instance.
static MenuMessageLoop* Create();
// Runs the platform specific bits of the message loop. If |nested_menu| is
// true we're being asked to run a menu from within a menu (eg a context
// menu).
virtual void Run(MenuController*, Widget* owner, bool nested_menu) = 0;
// Quit an earlier call to Run().
virtual void QuitNow() = 0;
// Repost |event| to |window|.
// |screen_loc| is the event's location in screen coordinates.
virtual void RepostEventToWindow(const ui::LocatedEvent& event,
gfx::NativeWindow window,
const gfx::Point& screen_loc) = 0;
// Clear any references to the owner widget that was passed into the previous
// call to Run().
virtual void ClearOwner() = 0;
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_MENU_MENU_MESSAGE_LOOP_H_
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