| // 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 CHROME_BROWSER_BATTERY_STATUS_BATTERY_STATUS_MANAGER_H_ |
| #define CHROME_BROWSER_BATTERY_STATUS_BATTERY_STATUS_MANAGER_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "build/build_config.h" |
| #include "content/browser/battery_status/battery_status_service.h" |
| |
| namespace content { |
| |
| // Platform specific manager class for fetching battery status data. |
| class CONTENT_EXPORT 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 content |
| |
| #endif // CHROME_BROWSER_BATTERY_STATUS_BATTERY_STATUS_MANAGER_H_ |