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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All Rights Reserved. | 2 * Copyright (C) 2012 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 | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef IdTargetObserverRegistry_h | 26 #ifndef IdTargetObserverRegistry_h |
27 #define IdTargetObserverRegistry_h | 27 #define IdTargetObserverRegistry_h |
28 | 28 |
29 #include "wtf/Forward.h" | 29 #include "wtf/Forward.h" |
30 #include "wtf/HashMap.h" | 30 #include "wtf/HashMap.h" |
31 #include "wtf/HashSet.h" | 31 #include "wtf/HashSet.h" |
32 #include "wtf/PassOwnPtr.h" | 32 #include "wtf/PassOwnPtr.h" |
33 #include "wtf/text/AtomicString.h" | 33 #include "wtf/text/StringHash.h" |
34 | 34 |
35 namespace WebCore { | 35 namespace WebCore { |
36 | 36 |
37 class IdTargetObserver; | 37 class IdTargetObserver; |
38 | 38 |
39 class IdTargetObserverRegistry { | 39 class IdTargetObserverRegistry { |
40 WTF_MAKE_FAST_ALLOCATED; | 40 WTF_MAKE_FAST_ALLOCATED; |
41 friend class IdTargetObserver; | 41 friend class IdTargetObserver; |
42 public: | 42 public: |
43 static PassOwnPtr<IdTargetObserverRegistry> create(); | 43 static PassOwnPtr<IdTargetObserverRegistry> create(); |
44 void notifyObservers(const AtomicString& id); | 44 void notifyObservers(const AtomicString& id); |
45 | 45 |
46 private: | 46 private: |
47 IdTargetObserverRegistry() : m_notifyingObserversInSet(0) { } | 47 IdTargetObserverRegistry() : m_notifyingObserversInSet(0) { } |
48 void addObserver(const AtomicString& id, IdTargetObserver*); | 48 void addObserver(const AtomicString& id, IdTargetObserver*); |
49 void removeObserver(const AtomicString& id, IdTargetObserver*); | 49 void removeObserver(const AtomicString& id, IdTargetObserver*); |
50 void notifyObserversInternal(const AtomicString& id); | 50 void notifyObserversInternal(const AtomicString& id); |
51 | 51 |
52 typedef HashSet<IdTargetObserver*> ObserverSet; | 52 typedef HashSet<IdTargetObserver*> ObserverSet; |
53 typedef HashMap<AtomicStringImpl*, OwnPtr<ObserverSet> > IdToObserverSetMap; | 53 typedef HashMap<StringImpl*, OwnPtr<ObserverSet> > IdToObserverSetMap; |
54 IdToObserverSetMap m_registry; | 54 IdToObserverSetMap m_registry; |
55 ObserverSet* m_notifyingObserversInSet; | 55 ObserverSet* m_notifyingObserversInSet; |
56 }; | 56 }; |
57 | 57 |
58 inline void IdTargetObserverRegistry::notifyObservers(const AtomicString& id) | 58 inline void IdTargetObserverRegistry::notifyObservers(const AtomicString& id) |
59 { | 59 { |
60 ASSERT(!m_notifyingObserversInSet); | 60 ASSERT(!m_notifyingObserversInSet); |
61 if (id.isEmpty() || m_registry.isEmpty()) | 61 if (id.isEmpty() || m_registry.isEmpty()) |
62 return; | 62 return; |
63 IdTargetObserverRegistry::notifyObserversInternal(id); | 63 IdTargetObserverRegistry::notifyObserversInternal(id); |
64 } | 64 } |
65 | 65 |
66 } // namespace WebCore | 66 } // namespace WebCore |
67 | 67 |
68 #endif // IdTargetObserverRegistry_h | 68 #endif // IdTargetObserverRegistry_h |
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