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// Copyright 2016 The Chromium Authors
// 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_PRE_TARGET_HANDLER_AURA_H_
#define UI_VIEWS_CONTROLS_MENU_MENU_PRE_TARGET_HANDLER_AURA_H_
#include "base/memory/raw_ptr.h"
#include "ui/aura/window_observer.h"
#include "ui/events/event_handler.h"
#include "ui/views/controls/menu/menu_pre_target_handler.h"
#include "ui/views/views_export.h"
#include "ui/wm/public/activation_change_observer.h"
namespace aura {
class Window;
} // namespace aura
namespace views {
class MenuController;
class Widget;
// MenuPreTargetHandlerAura is used to observe activation changes, cancel
// events, and root window destruction, to shutdown the menu.
//
// Additionally handles key events to provide accelerator support to menus.
class VIEWS_EXPORT MenuPreTargetHandlerAura
: public wm::ActivationChangeObserver,
public aura::WindowObserver,
public ui::EventHandler,
public MenuPreTargetHandler {
public:
MenuPreTargetHandlerAura(MenuController* controller, Widget* owner);
MenuPreTargetHandlerAura(const MenuPreTargetHandlerAura&) = delete;
MenuPreTargetHandlerAura& operator=(const MenuPreTargetHandlerAura&) = delete;
~MenuPreTargetHandlerAura() override;
// aura::client:ActivationChangeObserver:
void OnWindowActivated(wm::ActivationChangeObserver::ActivationReason reason,
aura::Window* gained_active,
aura::Window* lost_active) override;
// aura::WindowObserver:
void OnWindowDestroying(aura::Window* window) override;
// ui::EventHandler:
void OnCancelMode(ui::CancelModeEvent* event) override;
void OnKeyEvent(ui::KeyEvent* event) override;
// Return true, if the key event is supposed to perform some task.
bool ShouldCancelMenuForEvent(const ui::KeyEvent& event);
private:
void Cleanup();
raw_ptr<MenuController> controller_;
raw_ptr<aura::Window> root_;
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_MENU_MENU_PRE_TARGET_HANDLER_AURA_H_
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