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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_POWER_MONITOR_POWER_MONITOR_H_ | 5 #ifndef BASE_POWER_MONITOR_POWER_MONITOR_H_ |
6 #define BASE_POWER_MONITOR_POWER_MONITOR_H_ | 6 #define BASE_POWER_MONITOR_POWER_MONITOR_H_ |
7 | 7 |
8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
9 #include "base/macros.h" | 9 #include "base/macros.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/observer_list_threadsafe.h" | 11 #include "base/observer_list_threadsafe.h" |
12 #include "base/power_monitor/power_observer.h" | 12 #include "base/power_monitor/power_observer.h" |
13 | 13 |
14 namespace base { | 14 namespace base { |
15 | 15 |
16 class PowerMonitorSource; | 16 class PowerMonitorSource; |
17 | 17 |
18 // A class used to monitor the power state change and notify the observers about | 18 // A class used to monitor the power state change and notify the observers about |
19 // the change event. | 19 // the change event. |
20 class BASE_EXPORT PowerMonitor { | 20 class BASE_EXPORT PowerMonitor { |
21 public: | 21 public: |
22 // Takes ownership of |source|. | 22 // Takes ownership of |source|. |
23 explicit PowerMonitor(scoped_ptr<PowerMonitorSource> source); | 23 explicit PowerMonitor(std::unique_ptr<PowerMonitorSource> source); |
24 ~PowerMonitor(); | 24 ~PowerMonitor(); |
25 | 25 |
26 // Get the process-wide PowerMonitor (if not present, returns NULL). | 26 // Get the process-wide PowerMonitor (if not present, returns NULL). |
27 static PowerMonitor* Get(); | 27 static PowerMonitor* Get(); |
28 | 28 |
29 // Add and remove an observer. | 29 // Add and remove an observer. |
30 // Can be called from any thread. | 30 // Can be called from any thread. |
31 // Must not be called from within a notification callback. | 31 // Must not be called from within a notification callback. |
32 void AddObserver(PowerObserver* observer); | 32 void AddObserver(PowerObserver* observer); |
33 void RemoveObserver(PowerObserver* observer); | 33 void RemoveObserver(PowerObserver* observer); |
34 | 34 |
35 // Is the computer currently on battery power. | 35 // Is the computer currently on battery power. |
36 bool IsOnBatteryPower(); | 36 bool IsOnBatteryPower(); |
37 | 37 |
38 private: | 38 private: |
39 friend class PowerMonitorSource; | 39 friend class PowerMonitorSource; |
40 | 40 |
41 PowerMonitorSource* Source(); | 41 PowerMonitorSource* Source(); |
42 | 42 |
43 void NotifyPowerStateChange(bool battery_in_use); | 43 void NotifyPowerStateChange(bool battery_in_use); |
44 void NotifySuspend(); | 44 void NotifySuspend(); |
45 void NotifyResume(); | 45 void NotifyResume(); |
46 | 46 |
47 scoped_refptr<ObserverListThreadSafe<PowerObserver> > observers_; | 47 scoped_refptr<ObserverListThreadSafe<PowerObserver> > observers_; |
48 scoped_ptr<PowerMonitorSource> source_; | 48 std::unique_ptr<PowerMonitorSource> source_; |
49 | 49 |
50 DISALLOW_COPY_AND_ASSIGN(PowerMonitor); | 50 DISALLOW_COPY_AND_ASSIGN(PowerMonitor); |
51 }; | 51 }; |
52 | 52 |
53 } // namespace base | 53 } // namespace base |
54 | 54 |
55 #endif // BASE_POWER_MONITOR_POWER_MONITOR_H_ | 55 #endif // BASE_POWER_MONITOR_POWER_MONITOR_H_ |
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