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