Source/core/dom/MutationObserverRegistration.h - Issue 265793017: Oilpan: move node/element rare data objects to the heap.

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Issue 265793017: Oilpan: move node/element rare data objects to the heap. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Implement a weak-like Node reference from a MO registration object Created 6 years, 7 months ago

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1 /*	1 /*

2 * Copyright (C) 2011 Google Inc. All rights reserved.	2 * Copyright (C) 2011 Google Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are	5 * modification, are permitted provided that the following conditions are

6 * met:	6 * met:

7 *	7 *

8 * * Redistributions of source code must retain the above copyright	8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.	9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above	10 * * Redistributions in binary form must reproduce the above

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36 #include "wtf/HashSet.h"	36 #include "wtf/HashSet.h"

37 #include "wtf/text/AtomicString.h"	37 #include "wtf/text/AtomicString.h"

38 #include "wtf/text/AtomicStringHash.h"	38 #include "wtf/text/AtomicStringHash.h"

39	39

40 namespace WebCore {	40 namespace WebCore {

41	41

42 class QualifiedName;	42 class QualifiedName;

43	43

44 class MutationObserverRegistration FINAL : public NoBaseWillBeGarbageCollectedFi nalized<MutationObserverRegistration> {	44 class MutationObserverRegistration FINAL : public NoBaseWillBeGarbageCollectedFi nalized<MutationObserverRegistration> {

45 public:	45 public:

46 static PassOwnPtrWillBeRawPtr<MutationObserverRegistration> create(MutationO bserver&, Node&, MutationObserverOptions, const HashSet<AtomicString>& attribute Filter);	46 static PassOwnPtrWillBeRawPtr<MutationObserverRegistration> create(MutationO bserver&, Node*, MutationObserverOptions, const HashSet<AtomicString>& attribute Filter);

47 ~MutationObserverRegistration();	47 ~MutationObserverRegistration();

48	48

49 void resetObservation(MutationObserverOptions, const HashSet<AtomicString>& attributeFilter);	49 void resetObservation(MutationObserverOptions, const HashSet<AtomicString>& attributeFilter);

50 void observedSubtreeNodeWillDetach(Node&);	50 void observedSubtreeNodeWillDetach(Node&);

51 void clearTransientRegistrations();	51 void clearTransientRegistrations();

52 bool hasTransientRegistrations() const { return m_transientRegistrationNodes && !m_transientRegistrationNodes->isEmpty(); }	52 bool hasTransientRegistrations() const { return m_transientRegistrationNodes && !m_transientRegistrationNodes->isEmpty(); }

53 void unregister();	53 void unregister();

54	54

55 bool shouldReceiveMutationFrom(Node&, MutationObserver::MutationType, const QualifiedName* attributeName) const;	55 bool shouldReceiveMutationFrom(Node&, MutationObserver::MutationType, const QualifiedName* attributeName) const;

56 bool isSubtree() const { return m_options & MutationObserver::Subtree; }	56 bool isSubtree() const { return m_options & MutationObserver::Subtree; }

57	57

58 MutationObserver& observer() const { return *m_observer; }	58 MutationObserver& observer() const { return *m_observer; }

59 MutationRecordDeliveryOptions deliveryOptions() const { return m_options & ( MutationObserver::AttributeOldValue \| MutationObserver::CharacterDataOldValue); }	59 MutationRecordDeliveryOptions deliveryOptions() const { return m_options & ( MutationObserver::AttributeOldValue \| MutationObserver::CharacterDataOldValue); }

60 MutationObserverOptions mutationTypes() const { return m_options & MutationO bserver::AllMutationTypes; }	60 MutationObserverOptions mutationTypes() const { return m_options & MutationO bserver::AllMutationTypes; }

61	61

62 void addRegistrationNodesToSet(HashSet<Node*>&) const;	62 void addRegistrationNodesToSet(HashSet<Node*>&) const;

63	63

64 void trace(Visitor*);	64 void trace(Visitor*);

	65 #if ENABLE(OILPAN)

	66 void clearWeakMembers(Visitor*);

	67 #endif

65	68

66 void dispose();	69 void dispose();

67	70

68 private:	71 private:

69 MutationObserverRegistration(MutationObserver&, Node&, MutationObserverOptio ns, const HashSet<AtomicString>& attributeFilter);	72 MutationObserverRegistration(MutationObserver&, Node*, MutationObserverOptio ns, const HashSet<AtomicString>& attributeFilter);

70	73

71 RefPtrWillBeMember<MutationObserver> m_observer;	74 RefPtrWillBeMember<MutationObserver> m_observer;

72 Node& m_registrationNode;	75 RawPtrWillBeMember<Node> m_registrationNode;

	76 #if ENABLE(OILPAN)

	77 bool m_keepAlive;

	78 #else

73 RefPtr<Node> m_registrationNodeKeepAlive;	79 RefPtr<Node> m_registrationNodeKeepAlive;

	80 #endif

74 typedef HashSet<RefPtr<Node> > NodeHashSet;	81 typedef HashSet<RefPtr<Node> > NodeHashSet;

75 OwnPtr<NodeHashSet> m_transientRegistrationNodes;	82 OwnPtr<NodeHashSet> m_transientRegistrationNodes;

76	83

77 MutationObserverOptions m_options;	84 MutationObserverOptions m_options;

78 HashSet<AtomicString> m_attributeFilter;	85 HashSet<AtomicString> m_attributeFilter;

79 };	86 };

80	87

81 } // namespace WebCore	88 } // namespace WebCore

82	89

83 #endif // MutationObserverRegistration_h	90 #endif // MutationObserverRegistration_h

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