1/*
2 * Copyright (C) 2008 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
27#ifndef ContextDestructionObserver_h
28#define ContextDestructionObserver_h
29
30#include "PlatformExportMacros.h"
31
32namespace WebCore {
33
34class ScriptExecutionContext;
35
36class ContextDestructionObserver {
37public:
38 WEBCORE_EXPORT explicit ContextDestructionObserver(ScriptExecutionContext*);
39 WEBCORE_EXPORT virtual void contextDestroyed();
40
41 ScriptExecutionContext* scriptExecutionContext() const { return m_scriptExecutionContext; }
42
43protected:
44 WEBCORE_EXPORT virtual ~ContextDestructionObserver();
45 void observeContext(ScriptExecutionContext*);
46
47 ScriptExecutionContext* m_scriptExecutionContext;
48};
49
50} // namespace WebCore
51
52#endif // ContextDestructionObserver_h
53