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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_STATE_OVERRIDE_H_
#define CHROME_BROWSER_CHROMEOS_POWER_POWER_STATE_OVERRIDE_H_
#pragma once
#include "base/memory/weak_ptr.h"
namespace chromeos {
// This class overrides the current power state on the machine, disabling
// all power management features - this includes screen dimming, screen
// blanking, suspend and suspend on lid down.
class PowerStateOverride {
public:
PowerStateOverride();
~PowerStateOverride();
private:
// The heartbeat to keep re-requesting the power state override;
// otherwise the power state will expire.
void Heartbeat(uint32 request_id);
// Actually make a call to power manager; we need this to be able to post a
// delayed task since we cannot call back into power manager from Heartbeat
// since the last request has just been completed at that point.
void CallRequestPowerStateOverrides(uint32 request_id);
base::WeakPtrFactory<PowerStateOverride> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(PowerStateOverride);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_POWER_POWER_STATE_OVERRIDE_H_
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