1/* 2 * Copyright (C) 2012 Apple 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 DOMWindowExtension_h 27#define DOMWindowExtension_h 28 29#include "DOMWindowProperty.h" 30#include <wtf/PassRefPtr.h> 31#include <wtf/RefCounted.h> 32#include <wtf/RefPtr.h> 33 34namespace WebCore { 35 36class DOMWindowExtension; 37class DOMWrapperWorld; 38class Frame; 39 40class DOMWindowExtension : public RefCounted<DOMWindowExtension>, public DOMWindowProperty { 41public: 42 static PassRefPtr<DOMWindowExtension> create(Frame* frame, DOMWrapperWorld& world) 43 { 44 return adoptRef(new DOMWindowExtension(frame, world)); 45 } 46 47 virtual void disconnectFrameForPageCache() override; 48 virtual void reconnectFrameFromPageCache(Frame*) override; 49 virtual void willDestroyGlobalObjectInCachedFrame() override; 50 virtual void willDestroyGlobalObjectInFrame() override; 51 virtual void willDetachGlobalObjectFromFrame() override; 52 53 DOMWrapperWorld& world() const { return *m_world; } 54 55private: 56 DOMWindowExtension(Frame*, DOMWrapperWorld&); 57 58 RefPtr<DOMWrapperWorld> m_world; 59 RefPtr<Frame> m_disconnectedFrame; 60 bool m_wasDetached; 61}; 62 63} 64 65#endif // DOMWindowExtension_h 66