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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 DEVICE_BATTERY_BATTERY_STATUS_SERVICE_H_ | 5 #ifndef DEVICE_BATTERY_BATTERY_STATUS_SERVICE_H_ |
6 #define DEVICE_BATTERY_BATTERY_STATUS_SERVICE_H_ | 6 #define DEVICE_BATTERY_BATTERY_STATUS_SERVICE_H_ |
7 | 7 |
| 8 #include <memory> |
| 9 |
8 #include "base/callback_list.h" | 10 #include "base/callback_list.h" |
9 #include "base/macros.h" | 11 #include "base/macros.h" |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "base/memory/singleton.h" | 12 #include "base/memory/singleton.h" |
12 #include "device/battery/battery_export.h" | 13 #include "device/battery/battery_export.h" |
13 #include "device/battery/battery_status.mojom.h" | 14 #include "device/battery/battery_status.mojom.h" |
14 | 15 |
15 namespace base { | 16 namespace base { |
16 class SingleThreadTaskRunner; | 17 class SingleThreadTaskRunner; |
17 } | 18 } |
18 | 19 |
19 namespace device { | 20 namespace device { |
20 class BatteryStatusManager; | 21 class BatteryStatusManager; |
21 | 22 |
22 class DEVICE_BATTERY_EXPORT BatteryStatusService { | 23 class DEVICE_BATTERY_EXPORT BatteryStatusService { |
23 public: | 24 public: |
24 typedef base::Callback<void(const BatteryStatus&)> BatteryUpdateCallback; | 25 typedef base::Callback<void(const BatteryStatus&)> BatteryUpdateCallback; |
25 typedef base::CallbackList<void(const BatteryStatus&)> | 26 typedef base::CallbackList<void(const BatteryStatus&)> |
26 BatteryUpdateCallbackList; | 27 BatteryUpdateCallbackList; |
27 typedef BatteryUpdateCallbackList::Subscription BatteryUpdateSubscription; | 28 typedef BatteryUpdateCallbackList::Subscription BatteryUpdateSubscription; |
28 | 29 |
29 // Returns the BatteryStatusService singleton. | 30 // Returns the BatteryStatusService singleton. |
30 static BatteryStatusService* GetInstance(); | 31 static BatteryStatusService* GetInstance(); |
31 | 32 |
32 // Adds a callback to receive battery status updates. Must be called on the | 33 // Adds a callback to receive battery status updates. Must be called on the |
33 // main thread. The callback itself will be called on the main thread as well. | 34 // main thread. The callback itself will be called on the main thread as well. |
34 // NOTE: The callback may be run before AddCallback returns! | 35 // NOTE: The callback may be run before AddCallback returns! |
35 scoped_ptr<BatteryUpdateSubscription> AddCallback( | 36 std::unique_ptr<BatteryUpdateSubscription> AddCallback( |
36 const BatteryUpdateCallback& callback); | 37 const BatteryUpdateCallback& callback); |
37 | 38 |
38 // Gracefully clean-up. | 39 // Gracefully clean-up. |
39 void Shutdown(); | 40 void Shutdown(); |
40 | 41 |
41 // Injects a custom battery status manager for testing purposes. | 42 // Injects a custom battery status manager for testing purposes. |
42 void SetBatteryManagerForTesting( | 43 void SetBatteryManagerForTesting( |
43 scoped_ptr<BatteryStatusManager> test_battery_manager); | 44 std::unique_ptr<BatteryStatusManager> test_battery_manager); |
44 | 45 |
45 // Returns callback to invoke when battery is changed. Used for testing. | 46 // Returns callback to invoke when battery is changed. Used for testing. |
46 const BatteryUpdateCallback& GetUpdateCallbackForTesting() const; | 47 const BatteryUpdateCallback& GetUpdateCallbackForTesting() const; |
47 | 48 |
48 private: | 49 private: |
49 friend struct base::DefaultSingletonTraits<BatteryStatusService>; | 50 friend struct base::DefaultSingletonTraits<BatteryStatusService>; |
50 friend class BatteryStatusServiceTest; | 51 friend class BatteryStatusServiceTest; |
51 | 52 |
52 BatteryStatusService(); | 53 BatteryStatusService(); |
53 virtual ~BatteryStatusService(); | 54 virtual ~BatteryStatusService(); |
54 | 55 |
55 // Updates current battery status and sends new status to interested | 56 // Updates current battery status and sends new status to interested |
56 // render processes. Can be called on any thread via a callback. | 57 // render processes. Can be called on any thread via a callback. |
57 void NotifyConsumers(const BatteryStatus& status); | 58 void NotifyConsumers(const BatteryStatus& status); |
58 void NotifyConsumersOnMainThread(const BatteryStatus& status); | 59 void NotifyConsumersOnMainThread(const BatteryStatus& status); |
59 void ConsumersChanged(); | 60 void ConsumersChanged(); |
60 | 61 |
61 scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_; | 62 scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_; |
62 scoped_ptr<BatteryStatusManager> battery_fetcher_; | 63 std::unique_ptr<BatteryStatusManager> battery_fetcher_; |
63 BatteryUpdateCallbackList callback_list_; | 64 BatteryUpdateCallbackList callback_list_; |
64 BatteryUpdateCallback update_callback_; | 65 BatteryUpdateCallback update_callback_; |
65 BatteryStatus status_; | 66 BatteryStatus status_; |
66 bool status_updated_; | 67 bool status_updated_; |
67 bool is_shutdown_; | 68 bool is_shutdown_; |
68 | 69 |
69 DISALLOW_COPY_AND_ASSIGN(BatteryStatusService); | 70 DISALLOW_COPY_AND_ASSIGN(BatteryStatusService); |
70 }; | 71 }; |
71 | 72 |
72 } // namespace device | 73 } // namespace device |
73 | 74 |
74 #endif // DEVICE_BATTERY_BATTERY_STATUS_SERVICE_H_ | 75 #endif // DEVICE_BATTERY_BATTERY_STATUS_SERVICE_H_ |
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