1 /*
2  * Copyright (c) 2008, Google Inc. All rights reserved.
3  * Copyright (C) 2008 Apple 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 are
7  * met:
8  *
9  *     * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *     * Redistributions in binary form must reproduce the above
12  * copyright notice, this list of conditions and the following disclaimer
13  * in the documentation and/or other materials provided with the
14  * distribution.
15  *     * Neither the name of Google Inc. nor the names of its
16  * contributors may be used to endorse or promote products derived from
17  * this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef ScriptCachedFrameData_h
33 #define ScriptCachedFrameData_h
34 
35 #include <heap/Strong.h>
36 #include <wtf/HashMap.h>
37 
38 namespace WebCore {
39     class Frame;
40     class JSDOMWindow;
41     class DOMWindow;
42     class DOMWrapperWorld;
43 
44     class ScriptCachedFrameData {
45         WTF_MAKE_NONCOPYABLE(ScriptCachedFrameData); WTF_MAKE_FAST_ALLOCATED;
46         typedef HashMap< RefPtr<DOMWrapperWorld>, JSC::Strong<JSDOMWindow> > JSDOMWindowSet;
47 
48     public:
49         ScriptCachedFrameData(Frame*);
50         ~ScriptCachedFrameData();
51 
52         void restore(Frame*);
53         void clear();
54         DOMWindow* domWindow() const;
55 
56     private:
57         JSDOMWindowSet m_windows;
58         DOMWindow* m_domWindow;
59     };
60 
61 } // namespace WebCore
62 
63 #endif // ScriptCachedFrameData_h
64