1/*
2 * Copyright (C) 2010 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef WebUndoStep_h
27#define WebUndoStep_h
28
29#include <WebCore/UndoStep.h>
30#include <wtf/PassRefPtr.h>
31#include <wtf/RefPtr.h>
32
33namespace WebKit {
34
35class WebUndoStep : public RefCounted<WebUndoStep> {
36public:
37    static PassRefPtr<WebUndoStep> create(PassRefPtr<WebCore::UndoStep>);
38    ~WebUndoStep();
39
40    WebCore::UndoStep* step() const { return m_step.get(); }
41    uint64_t stepID() const { return m_stepID; }
42
43private:
44    WebUndoStep(PassRefPtr<WebCore::UndoStep> step, uint64_t stepID)
45        : m_step(step)
46        , m_stepID(stepID)
47    {
48    }
49
50    RefPtr<WebCore::UndoStep> m_step;
51    uint64_t m_stepID;
52};
53
54} // namespace WebKit
55
56#endif // WebEditCommand_h
57