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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 PlatformEventController_h | 5 #ifndef PlatformEventController_h |
| 6 #define PlatformEventController_h | 6 #define PlatformEventController_h |
| 7 | 7 |
| 8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
| 9 #include "core/page/PageVisibilityObserver.h" | 9 #include "core/page/PageVisibilityObserver.h" |
| 10 #include "platform/Timer.h" | 10 #include "platform/Timer.h" |
| (...skipping 13 matching lines...) Expand all Loading... |
| 24 // This is called when new data becomes available. | 24 // This is called when new data becomes available. |
| 25 virtual void didUpdateData() = 0; | 25 virtual void didUpdateData() = 0; |
| 26 | 26 |
| 27 protected: | 27 protected: |
| 28 explicit PlatformEventController(Page*); | 28 explicit PlatformEventController(Page*); |
| 29 virtual ~PlatformEventController(); | 29 virtual ~PlatformEventController(); |
| 30 | 30 |
| 31 virtual void registerWithDispatcher() = 0; | 31 virtual void registerWithDispatcher() = 0; |
| 32 virtual void unregisterWithDispatcher() = 0; | 32 virtual void unregisterWithDispatcher() = 0; |
| 33 | 33 |
| 34 // When true initiates a one-shot didUpdateData() when startUpdating() is call
ed. | 34 // When true initiates a one-shot didUpdateData() when startUpdating() is |
| 35 // called. |
| 35 virtual bool hasLastData() = 0; | 36 virtual bool hasLastData() = 0; |
| 36 | 37 |
| 37 bool m_hasEventListener; | 38 bool m_hasEventListener; |
| 38 | 39 |
| 39 private: | 40 private: |
| 40 // Inherited from PageVisibilityObserver. | 41 // Inherited from PageVisibilityObserver. |
| 41 void pageVisibilityChanged() override; | 42 void pageVisibilityChanged() override; |
| 42 | 43 |
| 43 void oneShotCallback(TimerBase*); | 44 void oneShotCallback(TimerBase*); |
| 44 | 45 |
| 45 bool m_isActive; | 46 bool m_isActive; |
| 46 Timer<PlatformEventController> m_timer; | 47 Timer<PlatformEventController> m_timer; |
| 47 }; | 48 }; |
| 48 | 49 |
| 49 } // namespace blink | 50 } // namespace blink |
| 50 | 51 |
| 51 #endif // PlatformEventController_h | 52 #endif // PlatformEventController_h |
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