1/*
2 * Copyright (C) 2005, 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 COMPUTER, 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 COMPUTER, 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#include "config.h"
27#include "SplitElementCommand.h"
28
29#include "Element.h"
30#include <wtf/Assertions.h>
31
32namespace WebCore {
33
34SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild)
35    : SimpleEditCommand(element->document())
36    , m_element2(element)
37    , m_atChild(atChild)
38{
39    ASSERT(m_element2);
40    ASSERT(m_atChild);
41    ASSERT(m_atChild->parentNode() == m_element2);
42}
43
44void SplitElementCommand::executeApply()
45{
46    if (m_atChild->parentNode() != m_element2)
47        return;
48
49    Vector<RefPtr<Node> > children;
50    for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling())
51        children.append(node);
52
53    ExceptionCode ec = 0;
54
55    Node* parent = m_element2->parentNode();
56    if (!parent || !parent->isContentEditable())
57        return;
58    parent->insertBefore(m_element1.get(), m_element2.get(), ec);
59    if (ec)
60        return;
61
62    size_t size = children.size();
63    for (size_t i = 0; i < size; ++i)
64        m_element1->appendChild(children[i], ec);
65}
66
67void SplitElementCommand::doApply()
68{
69    m_element1 = m_element2->cloneElementWithoutChildren();
70
71    executeApply();
72}
73
74void SplitElementCommand::doUnapply()
75{
76    if (!m_element1 || !m_element1->isContentEditable() || !m_element2->isContentEditable())
77        return;
78
79    Vector<RefPtr<Node> > children;
80    for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
81        children.append(node);
82
83    RefPtr<Node> refChild = m_element2->firstChild();
84
85    ExceptionCode ec = 0;
86
87    size_t size = children.size();
88    for (size_t i = 0; i < size; ++i)
89        m_element2->insertBefore(children[i].get(), refChild.get(), ec);
90
91    m_element1->remove(ec);
92}
93
94void SplitElementCommand::doReapply()
95{
96    if (!m_element1)
97        return;
98
99    executeApply();
100}
101
102} // namespace WebCore
103