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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_BRIGHTNESS_OBSERVER_H_
#define CHROME_BROWSER_CHROMEOS_POWER_BRIGHTNESS_OBSERVER_H_
#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "chrome/browser/chromeos/dbus/power_manager_client.h"
namespace chromeos {
// This observer displays a bubble at the bottom of the screen showing the
// current brightness level whenever the user changes it.
class BrightnessObserver : public PowerManagerClient::Observer {
public:
// This class registers/unregisters itself as an observer in ctor/dtor.
BrightnessObserver();
virtual ~BrightnessObserver();
private:
// PowerManagerClient::Observer implementation.
virtual void BrightnessChanged(int level, bool user_initiated) OVERRIDE;
DISALLOW_COPY_AND_ASSIGN(BrightnessObserver);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_POWER_BRIGHTNESS_OBSERVER_H_
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