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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 IntersectionObserverController_h | 5 #ifndef IntersectionObserverController_h |
6 #define IntersectionObserverController_h | 6 #define IntersectionObserverController_h |
7 | 7 |
8 #include "core/dom/Element.h" | 8 #include "core/dom/Element.h" |
9 #include "core/dom/IntersectionObserver.h" | 9 #include "core/dom/IntersectionObserver.h" |
10 #include "platform/Timer.h" | 10 #include "platform/Timer.h" |
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21 public: | 21 public: |
22 static IntersectionObserverController* create(Document*); | 22 static IntersectionObserverController* create(Document*); |
23 ~IntersectionObserverController(); | 23 ~IntersectionObserverController(); |
24 | 24 |
25 void resume() override; | 25 void resume() override; |
26 | 26 |
27 void scheduleIntersectionObserverForDelivery(IntersectionObserver&); | 27 void scheduleIntersectionObserverForDelivery(IntersectionObserver&); |
28 void deliverIntersectionObservations(Timer<IntersectionObserverController>*)
; | 28 void deliverIntersectionObservations(Timer<IntersectionObserverController>*)
; |
29 void computeTrackedIntersectionObservations(); | 29 void computeTrackedIntersectionObservations(); |
30 void addTrackedObserver(IntersectionObserver&); | 30 void addTrackedObserver(IntersectionObserver&); |
31 void removeTrackedObserversForRoot(const Element&); | 31 void removeTrackedObserversForRoot(const Node&); |
32 | 32 |
33 DECLARE_TRACE(); | 33 DECLARE_TRACE(); |
34 | 34 |
35 private: | 35 private: |
36 explicit IntersectionObserverController(Document*); | 36 explicit IntersectionObserverController(Document*); |
37 | 37 |
38 private: | 38 private: |
39 Timer<IntersectionObserverController> m_timer; | 39 Timer<IntersectionObserverController> m_timer; |
40 // IntersectionObservers for which this is the tracking document. | 40 // IntersectionObservers for which this is the tracking document. |
41 HeapHashSet<WeakMember<IntersectionObserver>> m_trackedIntersectionObservers
; | 41 HeapHashSet<WeakMember<IntersectionObserver>> m_trackedIntersectionObservers
; |
42 // IntersectionObservers for which this is the execution context of the call
back. | 42 // IntersectionObservers for which this is the execution context of the call
back. |
43 HeapHashSet<Member<IntersectionObserver>> m_pendingIntersectionObservers; | 43 HeapHashSet<Member<IntersectionObserver>> m_pendingIntersectionObservers; |
44 | 44 |
45 bool m_timerFiredWhileSuspended; | 45 bool m_timerFiredWhileSuspended; |
46 }; | 46 }; |
47 | 47 |
48 } // namespace blink | 48 } // namespace blink |
49 | 49 |
50 #endif // IntersectionObserverController_h | 50 #endif // IntersectionObserverController_h |
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