third_party/WebKit/Source/core/dom/IntersectionObservation.h - Issue 2475643004: Monitor the intersection of video and viewport.

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Side by Side Diff: third_party/WebKit/Source/core/dom/IntersectionObservation.h

Issue 2475643004: Monitor the intersection of video and viewport. (Closed)

Patch Set: Add ElementViewportRatioObserver. Created 4 years, 1 month ago

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« third_party/WebKit/Source/core/dom/ElementVisibilityObserver.h ('K') | « third_party/WebKit/Source/core/dom/ElementVisibilityObserver.cpp ('k') | third_party/WebKit/Source/core/dom/IntersectionObservation.cpp » ('j') | third_party/WebKit/Source/core/dom/IntersectionObservation.cpp » ('J')
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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 IntersectionObservation_h	5 #ifndef IntersectionObservation_h

6 #define IntersectionObservation_h	6 #define IntersectionObservation_h

7	7

8 #include "core/dom/DOMHighResTimeStamp.h"	8 #include "core/dom/DOMHighResTimeStamp.h"

9 #include "platform/geometry/LayoutRect.h"	9 #include "platform/geometry/LayoutRect.h"

10 #include "platform/heap/Handle.h"	10 #include "platform/heap/Handle.h"

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51 void mapRootRectToRootFrameCoordinates(LayoutRect&) const;	51 void mapRootRectToRootFrameCoordinates(LayoutRect&) const;

52 void mapRootRectToTargetFrameCoordinates(LayoutRect&) const;	52 void mapRootRectToTargetFrameCoordinates(LayoutRect&) const;

53 bool computeGeometry(IntersectionGeometry&) const;	53 bool computeGeometry(IntersectionGeometry&) const;

54	54

55 Member<IntersectionObserver> m_observer;	55 Member<IntersectionObserver> m_observer;

56	56

57 WeakMember<Element> m_target;	57 WeakMember<Element> m_target;

58	58

59 unsigned m_shouldReportRootBounds : 1;	59 unsigned m_shouldReportRootBounds : 1;

60 unsigned m_lastThresholdIndex : 30;	60 unsigned m_lastThresholdIndex : 30;

	61 float m_lastVisibleRatio = std::numeric_limits<float>::min();

61 };	62 };

62	63

63 } // namespace blink	64 } // namespace blink

64	65

65 #endif // IntersectionObservation_h	66 #endif // IntersectionObservation_h

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