third_party/WebKit/Source/core/dom/IntersectionObserver.h - Issue 2051253002: Start autoplay muted videos with autoplay attribute when they are visible.

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Issue 2051253002: Start autoplay muted videos with autoplay attribute when they are visible. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 6 months ago

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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 IntersectionObserver_h	5 #ifndef IntersectionObserver_h

6 #define IntersectionObserver_h	6 #define IntersectionObserver_h

7	7

8 #include "bindings/core/v8/ScriptWrappable.h"	8 #include "bindings/core/v8/ScriptWrappable.h"

9 #include "core/dom/IntersectionObservation.h"	9 #include "core/dom/IntersectionObservation.h"

10 #include "core/dom/IntersectionObserverEntry.h"	10 #include "core/dom/IntersectionObserverEntry.h"

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49 void enqueueIntersectionObserverEntry(IntersectionObserverEntry&);	49 void enqueueIntersectionObserverEntry(IntersectionObserverEntry&);

50 void applyRootMargin(LayoutRect&) const;	50 void applyRootMargin(LayoutRect&) const;

51 unsigned firstThresholdGreaterThan(float ratio) const;	51 unsigned firstThresholdGreaterThan(float ratio) const;

52 void deliver();	52 void deliver();

53 void removeObservation(IntersectionObservation&);	53 void removeObservation(IntersectionObservation&);

54 bool hasEntries() const { return m_entries.size(); }	54 bool hasEntries() const { return m_entries.size(); }

55 const HeapLinkedHashSet<WeakMember<IntersectionObservation>>& observations() const { return m_observations; }	55 const HeapLinkedHashSet<WeakMember<IntersectionObservation>>& observations() const { return m_observations; }

56	56

57 DECLARE_TRACE();	57 DECLARE_TRACE();

58	58

59 private:	59 // private:

60 explicit IntersectionObserver(IntersectionObserverCallback&, Node&, const Ve ctor<Length>& rootMargin, const Vector<float>& thresholds);	60 explicit IntersectionObserver(IntersectionObserverCallback&, Node&, const Ve ctor<Length>& rootMargin, const Vector<float>& thresholds);

61 void clearWeakMembers(Visitor*);	61 void observe(Element*);

	62 void unobserve(Element*);

	63 private:

	64 void clearWeakMembers(Visitor*);

62	65

63 Member<IntersectionObserverCallback> m_callback;	66 Member<IntersectionObserverCallback> m_callback;

64 WeakMember<Node> m_root;	67 WeakMember<Node> m_root;

65 HeapLinkedHashSet<WeakMember<IntersectionObservation>> m_observations;	68 HeapLinkedHashSet<WeakMember<IntersectionObservation>> m_observations;

66 HeapVector<Member<IntersectionObserverEntry>> m_entries;	69 HeapVector<Member<IntersectionObserverEntry>> m_entries;

67 Vector<float> m_thresholds;	70 Vector<float> m_thresholds;

68 Length m_topMargin;	71 Length m_topMargin;

69 Length m_rightMargin;	72 Length m_rightMargin;

70 Length m_bottomMargin;	73 Length m_bottomMargin;

71 Length m_leftMargin;	74 Length m_leftMargin;

72 };	75 };

73	76

74 } // namespace blink	77 } // namespace blink

75	78

76 #endif // IntersectionObserver_h	79 #endif // IntersectionObserver_h

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