1/*
2 * Copyright (C) 2005, 2006, 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#ifndef MergeIdenticalElementsCommand_h
27#define MergeIdenticalElementsCommand_h
28
29#include "EditCommand.h"
30
31namespace WebCore {
32
33class MergeIdenticalElementsCommand : public SimpleEditCommand {
34public:
35    static PassRefPtr<MergeIdenticalElementsCommand> create(PassRefPtr<Element> element1, PassRefPtr<Element> element2)
36    {
37        return adoptRef(new MergeIdenticalElementsCommand(element1, element2));
38    }
39
40private:
41    MergeIdenticalElementsCommand(PassRefPtr<Element>, PassRefPtr<Element>);
42
43    virtual void doApply() override;
44    virtual void doUnapply() override;
45
46#ifndef NDEBUG
47    virtual void getNodesInCommand(HashSet<Node*>&) override;
48#endif
49
50    RefPtr<Element> m_element1;
51    RefPtr<Element> m_element2;
52    RefPtr<Node> m_atChild;
53};
54
55} // namespace WebCore
56
57#endif // MergeIdenticalElementsCommand_h
58