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#pragma once
27
28#include "DOMWindow.h"
29#include <wtf/RefCounted.h>
30#include <wtf/RefPtr.h>
31#include <wtf/WeakPtr.h>
32
33namespace WebCore {
34
35class DOMWrapperWorld;
36class Frame;
37
38class DOMWindowExtension final : public RefCounted<DOMWindowExtension>, public DOMWindow::Observer {
39public:
40 static Ref<DOMWindowExtension> create(DOMWindow* window, DOMWrapperWorld& world)
41 {
42 return adoptRef(*new DOMWindowExtension(window, world));
43 }
44
45 WEBCORE_EXPORT ~DOMWindowExtension();
46
47 void suspendForPageCache() final;
48 void resumeFromPageCache() final;
49 void willDestroyGlobalObjectInCachedFrame() final;
50 void willDestroyGlobalObjectInFrame() final;
51 void willDetachGlobalObjectFromFrame() final;
52
53 WEBCORE_EXPORT Frame* frame() const;
54 DOMWrapperWorld& world() const { return m_world; }
55
56private:
57 WEBCORE_EXPORT DOMWindowExtension(DOMWindow*, DOMWrapperWorld&);
58
59 WeakPtr<DOMWindow> m_window;
60 Ref<DOMWrapperWorld> m_world;
61 RefPtr<Frame> m_disconnectedFrame;
62 bool m_wasDetached;
63};
64
65} // namespace WebCore
66