third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.cpp - Issue 1548523002: Use Document, rather than document element, for implicit root.

Side by Side Diff: third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.cpp

Issue 1548523002: Use Document, rather than document element, for implicit root. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@intersection-observer

Patch Set: Nits, comments, rebaseline Created 4 years, 11 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

View unified diff | Download patch

« no previous file with comments | « third_party/WebKit/Source/core/dom/ElementIntersectionObserverData.h ('k') | third_party/WebKit/Source/core/dom/ElementRareData.h » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')

OLD	NEW
	(Empty)
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

3 // found in the LICENSE file.

4

5 #include "core/dom/ElementIntersectionObserverData.h"

6

7 #include "core/dom/Document.h"

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

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

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

11 #include "core/dom/IntersectionObserverController.h"

12

13 namespace blink {

14

15 ElementIntersectionObserverData::ElementIntersectionObserverData() { }

16

17 ElementIntersectionObserverData::~ElementIntersectionObserverData() { }

18

19 bool ElementIntersectionObserverData::hasIntersectionObserver() const

20 {

21 return !m_intersectionObservers.isEmpty();

22 }

23

24 bool ElementIntersectionObserverData::hasIntersectionObservation() const

25 {

26 return !m_intersectionObservations.isEmpty();

27 }

28

29 IntersectionObservation* ElementIntersectionObserverData::getObservationFor(Inte rsectionObserver& observer)

30 {

31 auto i = m_intersectionObservations.find(&observer);

32 if (i == m_intersectionObservations.end())

33 return nullptr;

34 return i->value;

35 }

36

37 void ElementIntersectionObserverData::addObservation(IntersectionObservation& ob servation)

38 {

39 m_intersectionObservations.add(&observation.observer(), &observation);

40 }

41

42 void ElementIntersectionObserverData::removeObservation(IntersectionObserver& ob server)

43 {

44 m_intersectionObservations.remove(&observer);

45 }

46

47 void ElementIntersectionObserverData::activateValidIntersectionObservers(Element & element)

48 {

49 IntersectionObserverController& controller = element.document().ensureInters ectionObserverController();

50 for (auto& observer : m_intersectionObservers) {

51 controller.addTrackedObserver(*observer);

52 observer->setActive(true);

53 }

54 for (auto& observation : m_intersectionObservations)

55 observation.value->setActive(observation.key->isDescendantOfRoot(&elemen t));

56 }

57

58 void ElementIntersectionObserverData::deactivateAllIntersectionObservers(Element & element)

59 {

60 element.document().ensureIntersectionObserverController().removeTrackedObser versForRoot(element);

61 for (auto& observer : m_intersectionObservers)

62 observer->setActive(false);

63 for (auto& observation : m_intersectionObservations)

64 observation.value->setActive(false);

65 }

66

67 #if !ENABLE(OILPAN)

68 void ElementIntersectionObserverData::dispose()

69 {

70 HeapVector<Member<IntersectionObserver>> observersToDisconnect;

71 copyToVector(m_intersectionObservers, observersToDisconnect);

72 for (auto& observer : observersToDisconnect)

73 observer->disconnect();

74 ASSERT(m_intersectionObservers.isEmpty());

75 }

76 #endif

77

78 WeakPtrWillBeRawPtr<Element> ElementIntersectionObserverData::createWeakPtr(Elem ent* element)

79 {

80 #if ENABLE(OILPAN)

81 return element;

82 #else

83 if (!m_weakPointerFactory)

84 m_weakPointerFactory = adoptPtrWillBeNoop(new WeakPtrFactory<Element>(el ement));

85 return m_weakPointerFactory->createWeakPtr();

86 #endif

87 }

88

89 DEFINE_TRACE(ElementIntersectionObserverData)

90 {

91 visitor->trace(m_intersectionObservers);

92 visitor->trace(m_intersectionObservations);

93 }

94

95 } // namespace blink

OLD	NEW