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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 CHROME_BROWSER_CHROMEOS_POWER_POWER_BUTTON_OBSERVER_H_
#define CHROME_BROWSER_CHROMEOS_POWER_POWER_BUTTON_OBSERVER_H_
#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "chromeos/dbus/power_manager_client.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
namespace chromeos {
// Listens for power button, login, and screen lock events and passes them to
// the Aura shell's PowerButtonController class.
class PowerButtonObserver : public content::NotificationObserver,
public PowerManagerClient::Observer {
public:
// This class registers/unregisters itself as an observer in ctor/dtor.
PowerButtonObserver();
virtual ~PowerButtonObserver();
private:
// content::NotificationObserver implementation:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// PowerManagerClient::Observer implementation.
virtual void PowerButtonStateChanged(
bool down, const base::TimeTicks& timestamp) OVERRIDE;
virtual void LockButtonStateChanged(
bool down, const base::TimeTicks& timestamp) OVERRIDE;
virtual void LockScreen() OVERRIDE;
content::NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(PowerButtonObserver);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_POWER_POWER_BUTTON_OBSERVER_H_
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