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 PageLifecycleNotifier_h
27 #define PageLifecycleNotifier_h
28
29 #include "core/page/PageLifecycleObserver.h"
30 #include "platform/LifecycleNotifier.h"
31 #include "wtf/PassOwnPtr.h"
32 #include "wtf/TemporaryChange.h"
33
34 namespace blink {
35
36 class Page;
37 class LocalFrame;
38
39 class PageLifecycleNotifier FINAL : public LifecycleNotifier<Page> {
40 public:
41 static PassOwnPtr<PageLifecycleNotifier> create(Page*);
42
43 void notifyPageVisibilityChanged();
44 void notifyDidCommitLoad(LocalFrame*);
45
46 virtual void addObserver(Observer*) OVERRIDE;
47 virtual void removeObserver(Observer*) OVERRIDE;
48
49 private:
50 explicit PageLifecycleNotifier(Page*);
51
52 typedef HashSet<PageLifecycleObserver*> PageObserverSet;
53 PageObserverSet m_pageObservers;
54 };
55
create(Page * context)56 inline PassOwnPtr<PageLifecycleNotifier> PageLifecycleNotifier::create(Page* context)
57 {
58 return adoptPtr(new PageLifecycleNotifier(context));
59 }
60
notifyPageVisibilityChanged()61 inline void PageLifecycleNotifier::notifyPageVisibilityChanged()
62 {
63 TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverPageObservers);
64 for (PageObserverSet::iterator it = m_pageObservers.begin(); it != m_pageObservers.end(); ++it)
65 (*it)->pageVisibilityChanged();
66 }
67
notifyDidCommitLoad(LocalFrame * frame)68 inline void PageLifecycleNotifier::notifyDidCommitLoad(LocalFrame* frame)
69 {
70 TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverPageObservers);
71 for (PageObserverSet::iterator it = m_pageObservers.begin(); it != m_pageObservers.end(); ++it)
72 (*it)->didCommitLoad(frame);
73 }
74
75 } // namespace blink
76
77 #endif // PageLifecycleNotifier_h
78