1 /* 2 * Copyright (C) 2013 Google Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef DocumentLifecycleNotifier_h 27 #define DocumentLifecycleNotifier_h 28 29 #include "core/dom/DocumentLifecycleObserver.h" 30 #include "wtf/PassOwnPtr.h" 31 #include "wtf/TemporaryChange.h" 32 33 namespace WebCore { 34 35 class Document; 36 37 class DocumentLifecycleNotifier : public LifecycleNotifier<Document> { 38 public: 39 static PassOwnPtr<DocumentLifecycleNotifier> create(Document*); 40 41 void notifyDocumentWasDetached(); 42 #if !ENABLE(OILPAN) 43 void notifyDocumentWasDisposed(); 44 #endif 45 46 virtual void addObserver(Observer*) OVERRIDE FINAL; 47 virtual void removeObserver(Observer*) OVERRIDE FINAL; 48 49 private: 50 explicit DocumentLifecycleNotifier(Document*); 51 52 typedef HashSet<DocumentLifecycleObserver*> DocumentObserverSet; 53 DocumentObserverSet m_documentObservers; 54 }; 55 56 inline PassOwnPtr<DocumentLifecycleNotifier> DocumentLifecycleNotifier::create(Document* document) 57 { 58 return adoptPtr(new DocumentLifecycleNotifier(document)); 59 } 60 61 inline void DocumentLifecycleNotifier::notifyDocumentWasDetached() 62 { 63 TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverDocumentObservers); 64 for (DocumentObserverSet::iterator i = m_documentObservers.begin(); i != m_documentObservers.end(); ++i) 65 (*i)->documentWasDetached(); 66 } 67 68 #if !ENABLE(OILPAN) 69 inline void DocumentLifecycleNotifier::notifyDocumentWasDisposed() 70 { 71 TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverDocumentObservers); 72 for (DocumentObserverSet::iterator i = m_documentObservers.begin(); i != m_documentObservers.end(); ++i) 73 (*i)->documentWasDisposed(); 74 } 75 #endif 76 77 } // namespace WebCore 78 79 #endif // DocumentLifecycleNotifier_h 80