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| 1 /* | |
| 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. | |
| 3 * Copyright (C) 2013 Google Inc. All Rights Reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 * | |
| 26 */ | |
| 27 #ifndef ContextLifecycleNotifier_h | |
| 28 #define ContextLifecycleNotifier_h | |
| 29 | |
| 30 #include "core/dom/ActiveDOMObject.h" | |
| 31 #include "wtf/HashSet.h" | |
| 32 #include "wtf/PassOwnPtr.h" | |
| 33 | |
| 34 namespace WTF { | |
| 35 class MemoryObjectInfo; | |
| 36 } | |
| 37 | |
| 38 namespace WebCore { | |
| 39 | |
| 40 class ActiveDOMObject; | |
| 41 class ContextDestructionObserver; | |
| 42 class ScriptExecutionContext; | |
| 43 | |
| 44 class ContextLifecycleNotifier { | |
| 45 public: | |
| 46 static PassOwnPtr<ContextLifecycleNotifier> create(ScriptExecutionContext*); | |
| 47 | |
| 48 virtual ~ContextLifecycleNotifier(); | |
| 49 | |
| 50 typedef HashSet<ContextDestructionObserver*> ContextObserverSet; | |
| 51 typedef HashSet<ActiveDOMObject*> ActiveDOMObjectSet; | |
| 52 | |
| 53 const ActiveDOMObjectSet& activeDOMObjects() const { return m_activeDOMObjec
ts; } | |
| 54 | |
| 55 virtual void addObserver(ContextDestructionObserver*, ContextDestructionObse
rver::Type as); | |
| 56 virtual void removeObserver(ContextDestructionObserver*, ContextDestructionO
bserver::Type as); | |
| 57 | |
| 58 void notifyResumingActiveDOMObjects(); | |
| 59 void notifySuspendingActiveDOMObjects(ActiveDOMObject::ReasonForSuspension); | |
| 60 void notifyStoppingActiveDOMObjects(); | |
| 61 | |
| 62 bool contains(ActiveDOMObject* object) const { return m_activeDOMObjects.con
tains(object); } | |
| 63 bool canSuspendActiveDOMObjects(); | |
| 64 bool hasPendingActivity() const; | |
| 65 | |
| 66 void reportMemoryUsage(WTF::MemoryObjectInfo*) const; | |
| 67 | |
| 68 protected: | |
| 69 explicit ContextLifecycleNotifier(ScriptExecutionContext*); | |
| 70 | |
| 71 bool m_iterating; | |
| 72 | |
| 73 private: | |
| 74 ScriptExecutionContext* m_context; | |
| 75 ContextObserverSet m_destructionObservers; | |
| 76 ActiveDOMObjectSet m_activeDOMObjects; | |
| 77 bool m_inDestructor; | |
| 78 }; | |
| 79 | |
| 80 inline PassOwnPtr<ContextLifecycleNotifier> ContextLifecycleNotifier::create(Scr
iptExecutionContext* context) | |
| 81 { | |
| 82 return adoptPtr(new ContextLifecycleNotifier(context)); | |
| 83 } | |
| 84 | |
| 85 } // namespace WebCore | |
| 86 | |
| 87 #endif // ContextLifecycleNotifier_h | |
| 88 | |
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Chromium Code Reviews
Issue 16988003:
Revert "Extract ContextLifecycleNotifier from ScriptExecutionContext." (Closed)
Base URL: svn://svn.chromium.org/blink/trunk