Source/core/dom/MutationObserver.h - Issue 560003002: Add MutationObserverInit

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Issue 560003002: Add MutationObserverInit (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 6 years, 3 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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39 #include "wtf/RefCounted.h"	39 #include "wtf/RefCounted.h"

40 #include "wtf/RefPtr.h"	40 #include "wtf/RefPtr.h"

41 #include "wtf/Vector.h"	41 #include "wtf/Vector.h"

42	42

43 namespace blink {	43 namespace blink {

44	44

45 class Dictionary;	45 class Dictionary;

46 class ExceptionState;	46 class ExceptionState;

47 class MutationCallback;	47 class MutationCallback;

48 class MutationObserver;	48 class MutationObserver;

	49 class MutationObserverInit;

49 class MutationObserverRegistration;	50 class MutationObserverRegistration;

50 class MutationRecord;	51 class MutationRecord;

51 class Node;	52 class Node;

52	53

53 typedef unsigned char MutationObserverOptions;	54 typedef unsigned char MutationObserverOptions;

54 typedef unsigned char MutationRecordDeliveryOptions;	55 typedef unsigned char MutationRecordDeliveryOptions;

55	56

56 typedef WillBeHeapHashSet<RefPtrWillBeMember<MutationObserver> > MutationObserve rSet;	57 typedef WillBeHeapHashSet<RefPtrWillBeMember<MutationObserver> > MutationObserve rSet;

57 typedef WillBeHeapHashSet<RawPtrWillBeWeakMember<MutationObserverRegistration> > MutationObserverRegistrationSet;	58 typedef WillBeHeapHashSet<RawPtrWillBeWeakMember<MutationObserverRegistration> > MutationObserverRegistrationSet;

58 typedef WillBeHeapVector<RefPtrWillBeMember<MutationObserver> > MutationObserver Vector;	59 typedef WillBeHeapVector<RefPtrWillBeMember<MutationObserver> > MutationObserver Vector;

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78 AttributeOldValue = 1 << 5,	79 AttributeOldValue = 1 << 5,

79 CharacterDataOldValue = 1 << 6,	80 CharacterDataOldValue = 1 << 6,

80 };	81 };

81	82

82 static PassRefPtrWillBeRawPtr<MutationObserver> create(PassOwnPtr<MutationCa llback>);	83 static PassRefPtrWillBeRawPtr<MutationObserver> create(PassOwnPtr<MutationCa llback>);

83 static void resumeSuspendedObservers();	84 static void resumeSuspendedObservers();

84 static void deliverMutations();	85 static void deliverMutations();

85	86

86 ~MutationObserver();	87 ~MutationObserver();

87	88

88 void observe(Node*, const Dictionary&, ExceptionState&);	89 void observe(Node, const MutationObserverInit, ExceptionState&);

89 WillBeHeapVector<RefPtrWillBeMember<MutationRecord> > takeRecords();	90 WillBeHeapVector<RefPtrWillBeMember<MutationRecord> > takeRecords();

90 void disconnect();	91 void disconnect();

91 void observationStarted(MutationObserverRegistration*);	92 void observationStarted(MutationObserverRegistration*);

92 void observationEnded(MutationObserverRegistration*);	93 void observationEnded(MutationObserverRegistration*);

93 void enqueueMutationRecord(PassRefPtrWillBeRawPtr<MutationRecord>);	94 void enqueueMutationRecord(PassRefPtrWillBeRawPtr<MutationRecord>);

94 void setHasTransientRegistration();	95 void setHasTransientRegistration();

95 bool canDeliver();	96 bool canDeliver();

96	97

97 WillBeHeapHashSet<RawPtrWillBeMember<Node> > getObservedNodes() const;	98 WillBeHeapHashSet<RawPtrWillBeMember<Node> > getObservedNodes() const;

98	99

99 void trace(Visitor*);	100 void trace(Visitor*);

100	101

101 private:	102 private:

102 struct ObserverLessThan;	103 struct ObserverLessThan;

103	104

104 explicit MutationObserver(PassOwnPtr<MutationCallback>);	105 explicit MutationObserver(PassOwnPtr<MutationCallback>);

105 void deliver();	106 void deliver();

106	107

107 OwnPtr<MutationCallback> m_callback;	108 OwnPtr<MutationCallback> m_callback;

108 MutationRecordVector m_records;	109 MutationRecordVector m_records;

109 MutationObserverRegistrationSet m_registrations;	110 MutationObserverRegistrationSet m_registrations;

110 unsigned m_priority;	111 unsigned m_priority;

111 };	112 };

112	113

113 } // namespace blink	114 } // namespace blink

114	115

115 #endif // MutationObserver_h	116 #endif // MutationObserver_h

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