2 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
4 * Copyright (C) 2009 Adam Barth. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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31 #ifndef NavigationScheduler_h
32 #define NavigationScheduler_h
34 #include "platform/Timer.h"
35 #include "platform/heap/Handle.h"
36 #include "platform/weborigin/Referrer.h"
37 #include "wtf/Forward.h"
38 #include "wtf/HashMap.h"
39 #include "wtf/Noncopyable.h"
40 #include "wtf/OwnPtr.h"
41 #include "wtf/PassOwnPtr.h"
42 #include "wtf/PassRefPtr.h"
43 #include "wtf/text/WTFString.h"
50 class ScheduledNavigation;
52 class NavigationDisablerForBeforeUnload {
53 WTF_MAKE_NONCOPYABLE(NavigationDisablerForBeforeUnload);
56 NavigationDisablerForBeforeUnload()
58 s_navigationDisableCount++;
60 ~NavigationDisablerForBeforeUnload()
62 ASSERT(s_navigationDisableCount);
63 s_navigationDisableCount--;
65 static bool isNavigationAllowed() { return !s_navigationDisableCount; }
68 static unsigned s_navigationDisableCount;
71 class NavigationScheduler FINAL {
72 WTF_MAKE_NONCOPYABLE(NavigationScheduler);
73 DISALLOW_ALLOCATION();
75 explicit NavigationScheduler(LocalFrame*);
76 ~NavigationScheduler();
78 bool locationChangePending();
80 void scheduleRedirect(double delay, const String& url);
81 void scheduleLocationChange(Document*, const String& url, const Referrer& referrer, bool lockBackForwardList = true);
82 void schedulePageBlock(Document*, const Referrer&);
83 void scheduleFormSubmission(PassRefPtrWillBeRawPtr<FormSubmission>);
84 void scheduleReload();
85 void scheduleHistoryNavigation(int steps);
93 bool shouldScheduleNavigation() const;
94 bool shouldScheduleNavigation(const String& url) const;
96 void timerFired(Timer<NavigationScheduler>*);
97 void schedule(PassOwnPtr<ScheduledNavigation>);
99 static bool mustLockBackForwardList(LocalFrame* targetFrame);
101 RawPtrWillBeMember<LocalFrame> m_frame;
102 Timer<NavigationScheduler> m_timer;
103 OwnPtr<ScheduledNavigation> m_redirect;
108 #endif // NavigationScheduler_h