32 lines
849 B
C
32 lines
849 B
C
|
// Copyright 2013 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 BASE_POWER_MONITOR_POWER_OBSERVER_H_
|
||
|
|
#define BASE_POWER_MONITOR_POWER_OBSERVER_H_
|
||
|
|
|
||
|
|
#include "base/base_export.h"
|
||
|
|
#include "base/compiler_specific.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
class BASE_EXPORT PowerObserver {
|
||
|
|
public:
|
||
|
|
// Notification of a change in power status of the computer, such
|
||
|
|
// as from switching between battery and A/C power.
|
||
|
|
virtual void OnPowerStateChange(bool on_battery_power) {}
|
||
|
|
|
||
|
|
// Notification that the system is suspending.
|
||
|
|
virtual void OnSuspend() {}
|
||
|
|
|
||
|
|
// Notification that the system is resuming.
|
||
|
|
virtual void OnResume() {}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
virtual ~PowerObserver() = default;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace base
|
||
|
|
|
||
|
|
#endif // BASE_POWER_MONITOR_POWER_OBSERVER_H_
|