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// Copyright (c) 2011 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_CROS_POWER_LIBRARY_H_
#define CHROME_BROWSER_CHROMEOS_CROS_POWER_LIBRARY_H_
#pragma once
// TODO(sque): Move to chrome/browser/chromeos/system, crosbug.com/16558
#include "base/callback.h"
namespace chromeos {
// This interface defines interaction with the ChromeOS power library APIs.
// Classes can add themselves as observers. Users can get an instance of this
// library class like this: chromeos::CrosLibrary::Get()->GetPowerLibrary()
class PowerLibrary {
public:
class Observer {
public:
virtual void SystemResumed() = 0;
protected:
virtual ~Observer() {}
};
virtual ~PowerLibrary() {}
virtual void Init() = 0;
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
// Factory function, creates a new instance and returns ownership.
// For normal usage, access the singleton via CrosLibrary::Get().
static PowerLibrary* GetImpl(bool stub);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_CROS_POWER_LIBRARY_H_
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