JSDataGridDataSource.h revision cad810f21b803229eb11403f9209855525a25d57 
1/*
2 * Copyright (C) 2009 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 JSDataGridDataSource_h
27#define JSDataGridDataSource_h
28
29#if ENABLE(DATAGRID)
30
31#include "DataGridDataSource.h"
32#include <runtime/JSValue.h>
33#include <runtime/Protect.h>
34#include <wtf/PassRefPtr.h>
35#include <wtf/RefPtr.h>
36
37namespace WebCore {
38
39class Frame;
40class HTMLDataGridElement;
41
42class JSDataGridDataSource : public DataGridDataSource {
43public:
44    static PassRefPtr<JSDataGridDataSource> create(JSC::JSValue dataSource, Frame* frame)
45    {
46        return adoptRef(new JSDataGridDataSource(dataSource, frame));
47    }
48
49    virtual ~JSDataGridDataSource();
50
51    virtual bool isJSDataGridDataSource() const { return true; }
52    JSC::JSValue jsDataSource() const { return m_dataSource.get(); }
53
54private:
55    JSDataGridDataSource(JSC::JSValue, Frame*);
56
57    JSC::ProtectedJSValue m_dataSource;
58    RefPtr<Frame> m_frame;
59};
60
61inline JSDataGridDataSource* asJSDataGridDataSource(DataGridDataSource* dataSource)
62{
63    ASSERT(dataSource->isJSDataGridDataSource());
64    return static_cast<JSDataGridDataSource*>(dataSource);
65}
66
67inline const JSDataGridDataSource* asJSDataGridDataSource(const DataGridDataSource* dataSource)
68{
69    ASSERT(dataSource->isJSDataGridDataSource());
70    return static_cast<const JSDataGridDataSource*>(dataSource);
71}
72
73} // namespace WebCore
74
75#endif // ENABLE(DATAGRID)
76#endif // JSDataGridDataSource_h
77