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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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25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef MutationObserver_h | 31 #ifndef MutationObserver_h |
32 #define MutationObserver_h | 32 #define MutationObserver_h |
33 | 33 |
34 #include "bindings/v8/ScriptWrappable.h" | 34 #include "bindings/v8/ScriptWrappable.h" |
| 35 #include "platform/heap/Handle.h" |
35 #include "wtf/HashSet.h" | 36 #include "wtf/HashSet.h" |
36 #include "wtf/PassOwnPtr.h" | 37 #include "wtf/PassOwnPtr.h" |
37 #include "wtf/PassRefPtr.h" | 38 #include "wtf/PassRefPtr.h" |
38 #include "wtf/RefCounted.h" | 39 #include "wtf/RefCounted.h" |
39 #include "wtf/RefPtr.h" | 40 #include "wtf/RefPtr.h" |
40 #include "wtf/Vector.h" | 41 #include "wtf/Vector.h" |
41 | 42 |
42 namespace WebCore { | 43 namespace WebCore { |
43 | 44 |
44 class Dictionary; | 45 class Dictionary; |
45 class ExceptionState; | 46 class ExceptionState; |
46 class MutationCallback; | 47 class MutationCallback; |
47 class MutationObserverRegistration; | 48 class MutationObserverRegistration; |
48 class MutationRecord; | 49 class MutationRecord; |
49 class Node; | 50 class Node; |
50 | 51 |
51 typedef unsigned char MutationObserverOptions; | 52 typedef unsigned char MutationObserverOptions; |
52 typedef unsigned char MutationRecordDeliveryOptions; | 53 typedef unsigned char MutationRecordDeliveryOptions; |
53 | 54 |
54 class MutationObserver : public RefCounted<MutationObserver>, public ScriptWrapp
able { | 55 class MutationObserver FINAL : public RefCountedWillBeGarbageCollectedFinalized<
MutationObserver>, public ScriptWrappable { |
55 public: | 56 public: |
56 enum MutationType { | 57 enum MutationType { |
57 ChildList = 1 << 0, | 58 ChildList = 1 << 0, |
58 Attributes = 1 << 1, | 59 Attributes = 1 << 1, |
59 CharacterData = 1 << 2, | 60 CharacterData = 1 << 2, |
60 | 61 |
61 AllMutationTypes = ChildList | Attributes | CharacterData | 62 AllMutationTypes = ChildList | Attributes | CharacterData |
62 }; | 63 }; |
63 | 64 |
64 enum ObservationFlags { | 65 enum ObservationFlags { |
65 Subtree = 1 << 3, | 66 Subtree = 1 << 3, |
66 AttributeFilter = 1 << 4 | 67 AttributeFilter = 1 << 4 |
67 }; | 68 }; |
68 | 69 |
69 enum DeliveryFlags { | 70 enum DeliveryFlags { |
70 AttributeOldValue = 1 << 5, | 71 AttributeOldValue = 1 << 5, |
71 CharacterDataOldValue = 1 << 6, | 72 CharacterDataOldValue = 1 << 6, |
72 }; | 73 }; |
73 | 74 |
74 static PassRefPtr<MutationObserver> create(PassOwnPtr<MutationCallback>); | 75 static PassRefPtrWillBeRawPtr<MutationObserver> create(PassOwnPtr<MutationCa
llback>); |
75 static void resumeSuspendedObservers(); | 76 static void resumeSuspendedObservers(); |
76 static void deliverMutations(); | 77 static void deliverMutations(); |
77 | 78 |
78 ~MutationObserver(); | 79 ~MutationObserver(); |
79 | 80 |
80 void observe(Node*, const Dictionary&, ExceptionState&); | 81 void observe(Node*, const Dictionary&, ExceptionState&); |
81 Vector<RefPtr<MutationRecord> > takeRecords(); | 82 WillBeHeapVector<RefPtrWillBeMember<MutationRecord> > takeRecords(); |
82 void disconnect(); | 83 void disconnect(); |
83 void observationStarted(MutationObserverRegistration*); | 84 void observationStarted(MutationObserverRegistration*); |
84 void observationEnded(MutationObserverRegistration*); | 85 void observationEnded(MutationObserverRegistration*); |
85 void enqueueMutationRecord(PassRefPtr<MutationRecord>); | 86 void enqueueMutationRecord(PassRefPtrWillBeRawPtr<MutationRecord>); |
86 void setHasTransientRegistration(); | 87 void setHasTransientRegistration(); |
87 bool canDeliver(); | 88 bool canDeliver(); |
88 | 89 |
89 HashSet<Node*> getObservedNodes() const; | 90 HashSet<Node*> getObservedNodes() const; |
90 | 91 |
| 92 void trace(Visitor*); |
| 93 |
91 private: | 94 private: |
92 struct ObserverLessThan; | 95 struct ObserverLessThan; |
93 | 96 |
94 explicit MutationObserver(PassOwnPtr<MutationCallback>); | 97 explicit MutationObserver(PassOwnPtr<MutationCallback>); |
95 void deliver(); | 98 void deliver(); |
96 | 99 |
97 OwnPtr<MutationCallback> m_callback; | 100 OwnPtr<MutationCallback> m_callback; |
98 Vector<RefPtr<MutationRecord> > m_records; | 101 WillBeHeapVector<RefPtrWillBeMember<MutationRecord> > m_records; |
99 HashSet<MutationObserverRegistration*> m_registrations; | 102 WillBeHeapHashSet<RawPtrWillBeMember<MutationObserverRegistration> > m_regis
trations; |
100 unsigned m_priority; | 103 unsigned m_priority; |
101 }; | 104 }; |
102 | 105 |
103 } | 106 } |
104 | 107 |
105 #endif // MutationObserver_h | 108 #endif // MutationObserver_h |
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