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// Copyright (c) 2012 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_ACCELERATORS_ACCELERATOR_DISPATCHER_H_
#define ASH_ACCELERATORS_ACCELERATOR_DISPATCHER_H_
#include "ash/ash_export.h"
#include "base/message_loop/message_loop.h"
#include "ui/aura/window.h"
#include "ui/aura/window_observer.h"
namespace ash {
// Dispatcher for handling accelerators from menu.
//
// Wraps a nested dispatcher to which control is passed if no accelerator key
// has been pressed.
// TODO(pkotwicz): Port AcceleratorDispatcher to mac.
// TODO(pkotwicz): Add support for a |nested_dispatcher| which sends
// events to a system IME.
class ASH_EXPORT AcceleratorDispatcher : public base::MessageLoop::Dispatcher,
public aura::WindowObserver {
public:
AcceleratorDispatcher(base::MessageLoop::Dispatcher* nested_dispatcher,
aura::Window* associated_window);
virtual ~AcceleratorDispatcher();
// MessageLoop::Dispatcher overrides:
virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
// aura::WindowObserver overrides:
virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
private:
base::MessageLoop::Dispatcher* nested_dispatcher_;
// Window associated with |nested_dispatcher_| which is used to determine
// whether the |nested_dispatcher_| is allowed to receive events.
aura::Window* associated_window_;
DISALLOW_COPY_AND_ASSIGN(AcceleratorDispatcher);
};
} // namespace ash
#endif // ASH_ACCELERATORS_ACCELERATOR_DISPATCHER_H_
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