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
33namespace blink {
34
35class Document;
36
37class DocumentLifecycleNotifier : public LifecycleNotifier<Document> {
38public:
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
49private:
50    explicit DocumentLifecycleNotifier(Document*);
51
52    typedef HashSet<DocumentLifecycleObserver*> DocumentObserverSet;
53    DocumentObserverSet m_documentObservers;
54};
55
56inline PassOwnPtr<DocumentLifecycleNotifier> DocumentLifecycleNotifier::create(Document* document)
57{
58    return adoptPtr(new DocumentLifecycleNotifier(document));
59}
60
61inline 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)
69inline 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 blink
78
79#endif // DocumentLifecycleNotifier_h
80