1/*
2 * Copyright (C) 2012 Michael Pruett <michael@68k.org>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef DOMRequestState_h
29#define DOMRequestState_h
30
31#include "DOMWrapperWorld.h"
32#include "Document.h"
33#include "ScriptState.h"
34#include "WorkerGlobalScope.h"
35
36namespace WebCore {
37
38class ScriptExecutionContext;
39
40class DOMRequestState {
41public:
42    explicit DOMRequestState(ScriptExecutionContext* scriptExecutionContext)
43        : m_scriptExecutionContext(scriptExecutionContext)
44        , m_exec(0)
45    {
46        if (m_scriptExecutionContext->isDocument()) {
47            Document* document = toDocument(m_scriptExecutionContext);
48            m_exec = execStateFromPage(mainThreadNormalWorld(), document->page());
49        } else {
50            WorkerGlobalScope* workerGlobalScope = static_cast<WorkerGlobalScope*>(m_scriptExecutionContext);
51            m_exec = execStateFromWorkerGlobalScope(workerGlobalScope);
52        }
53    }
54
55    void clear()
56    {
57        m_scriptExecutionContext = 0;
58        m_exec = 0;
59    }
60
61    class Scope {
62    public:
63        explicit Scope(DOMRequestState& state)
64            : m_locker(state.exec())
65        {
66        }
67    private:
68        JSC::JSLockHolder m_locker;
69    };
70
71    JSC::ExecState* exec()
72    {
73        return m_exec;
74    }
75
76private:
77    ScriptExecutionContext* m_scriptExecutionContext;
78    JSC::ExecState* m_exec;
79};
80
81}
82#endif
83