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      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 DOMWindowLifecycleNotifier_h
     27 #define DOMWindowLifecycleNotifier_h
     28 
     29 #include "core/frame/DOMWindowLifecycleObserver.h"
     30 #include "platform/LifecycleNotifier.h"
     31 #include "wtf/PassOwnPtr.h"
     32 #include "wtf/TemporaryChange.h"
     33 #include "wtf/text/WTFString.h"
     34 
     35 namespace blink {
     36 
     37 class LocalDOMWindow;
     38 
     39 class DOMWindowLifecycleNotifier FINAL : public LifecycleNotifier<LocalDOMWindow> {
     40 public:
     41     static PassOwnPtr<DOMWindowLifecycleNotifier> create(LocalDOMWindow*);
     42 
     43     void notifyAddEventListener(LocalDOMWindow*, const AtomicString& eventType);
     44     void notifyRemoveEventListener(LocalDOMWindow*, const AtomicString& eventType);
     45     void notifyRemoveAllEventListeners(LocalDOMWindow*);
     46 
     47     virtual void addObserver(Observer*) OVERRIDE;
     48     virtual void removeObserver(Observer*) OVERRIDE;
     49 
     50 private:
     51     explicit DOMWindowLifecycleNotifier(LocalDOMWindow*);
     52 
     53     typedef HashSet<DOMWindowLifecycleObserver*> DOMWindowObserverSet;
     54     DOMWindowObserverSet m_windowObservers;
     55 };
     56 
     57 } // namespace blink
     58 
     59 #endif // DOMWindowLifecycleNotifier_h
     60