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// Copyright 2014 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 DEVICE_BATTERY_BATTERY_STATUS_MANAGER_H_
#define DEVICE_BATTERY_BATTERY_STATUS_MANAGER_H_
#include "base/memory/scoped_ptr.h"
#include "device/battery/battery_status_service.h"
namespace device {
// Platform specific manager class for fetching battery status data.
class BatteryStatusManager {
public:
// Creates a BatteryStatusManager object. |callback| should be called when the
// battery status changes.
static scoped_ptr<BatteryStatusManager> Create(
const BatteryStatusService::BatteryUpdateCallback& callback);
virtual ~BatteryStatusManager() {}
// Start listening for battery status changes. New updates are signalled
// by invoking the callback provided at construction time.
// Note that this is called in the IO thread.
virtual bool StartListeningBatteryChange() = 0;
// Stop listening for battery status changes.
// Note that this is called in the IO thread.
virtual void StopListeningBatteryChange() = 0;
};
} // namespace device
#endif // DEVICE_BATTERY_BATTERY_STATUS_MANAGER_H_
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