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32 lines
850 B
32 lines
850 B
4 months ago
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// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_POWER_MONITOR_POWER_OBSERVER_H_
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#define BASE_POWER_MONITOR_POWER_OBSERVER_H_
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#include "base/base_export.h"
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#include "base/compiler_specific.h"
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namespace base {
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class BASE_EXPORT PowerObserver {
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public:
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// Notification of a change in power status of the computer, such
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// as from switching between battery and A/C power.
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virtual void OnPowerStateChange(bool on_battery_power) {};
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// Notification that the system is suspending.
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virtual void OnSuspend() {}
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// Notification that the system is resuming.
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virtual void OnResume() {}
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protected:
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virtual ~PowerObserver() = default;
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};
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} // namespace base
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#endif // BASE_POWER_MONITOR_POWER_OBSERVER_H_
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