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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/Element.h" | 9 #include "core/dom/Element.h" |
10 #include "core/dom/IntersectionObservation.h" | 10 #include "core/dom/IntersectionObservation.h" |
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34 HeapVector<Member<IntersectionObserverEntry>> takeRecords(); | 34 HeapVector<Member<IntersectionObserverEntry>> takeRecords(); |
35 | 35 |
36 Node* root() const { return m_root.get(); } | 36 Node* root() const { return m_root.get(); } |
37 LayoutObject* rootLayoutObject() const; | 37 LayoutObject* rootLayoutObject() const; |
38 bool hasPercentMargin() const; | 38 bool hasPercentMargin() const; |
39 const Length& topMargin() const { return m_topMargin; } | 39 const Length& topMargin() const { return m_topMargin; } |
40 const Length& rightMargin() const { return m_rightMargin; } | 40 const Length& rightMargin() const { return m_rightMargin; } |
41 const Length& bottomMargin() const { return m_bottomMargin; } | 41 const Length& bottomMargin() const { return m_bottomMargin; } |
42 const Length& leftMargin() const { return m_leftMargin; } | 42 const Length& leftMargin() const { return m_leftMargin; } |
43 bool isDescendantOfRoot(const Element*) const; | 43 bool isDescendantOfRoot(const Element*) const; |
44 void computeIntersectionObservations(double timestamp); | 44 void computeIntersectionObservations(); |
45 void enqueueIntersectionObserverEntry(IntersectionObserverEntry&); | 45 void enqueueIntersectionObserverEntry(IntersectionObserverEntry&); |
46 void applyRootMargin(LayoutRect&) const; | 46 void applyRootMargin(LayoutRect&) const; |
47 unsigned firstThresholdGreaterThan(float ratio) const; | 47 unsigned firstThresholdGreaterThan(float ratio) const; |
48 void deliver(); | 48 void deliver(); |
49 void setActive(bool); | 49 void setActive(bool); |
50 void disconnect(); | 50 void disconnect(); |
51 void removeObservation(IntersectionObservation&); | 51 void removeObservation(IntersectionObservation&); |
52 bool hasEntries() const { return m_entries.size(); } | 52 bool hasEntries() const { return m_entries.size(); } |
53 | 53 |
54 DECLARE_TRACE(); | 54 DECLARE_TRACE(); |
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66 Vector<float> m_thresholds; | 66 Vector<float> m_thresholds; |
67 Length m_topMargin; | 67 Length m_topMargin; |
68 Length m_rightMargin; | 68 Length m_rightMargin; |
69 Length m_bottomMargin; | 69 Length m_bottomMargin; |
70 Length m_leftMargin; | 70 Length m_leftMargin; |
71 }; | 71 }; |
72 | 72 |
73 } // namespace blink | 73 } // namespace blink |
74 | 74 |
75 #endif // IntersectionObserver_h | 75 #endif // IntersectionObserver_h |
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