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 "HTMLNames.h"
31 #include <wtf/Assertions.h>
32
33 namespace WebCore {
34
SplitElementCommand(PassRefPtr<Element> element,PassRefPtr<Node> atChild)35 SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild)
36 : SimpleEditCommand(element->document())
37 , m_element2(element)
38 , m_atChild(atChild)
39 {
40 ASSERT(m_element2);
41 ASSERT(m_atChild);
42 ASSERT(m_atChild->parentNode() == m_element2);
43 }
44
executeApply()45 void SplitElementCommand::executeApply()
46 {
47 if (m_atChild->parentNode() != m_element2)
48 return;
49
50 Vector<RefPtr<Node> > children;
51 for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling())
52 children.append(node);
53
54 ExceptionCode ec = 0;
55
56 ContainerNode* parent = m_element2->parentNode();
57 if (!parent || !parent->rendererIsEditable())
58 return;
59 parent->insertBefore(m_element1.get(), m_element2.get(), ec);
60 if (ec)
61 return;
62
63 // Delete id attribute from the second element because the same id cannot be used for more than one element
64 m_element2->removeAttribute(HTMLNames::idAttr, ec);
65 ASSERT(!ec);
66
67 size_t size = children.size();
68 for (size_t i = 0; i < size; ++i)
69 m_element1->appendChild(children[i], ec);
70 }
71
doApply()72 void SplitElementCommand::doApply()
73 {
74 m_element1 = m_element2->cloneElementWithoutChildren();
75
76 executeApply();
77 }
78
doUnapply()79 void SplitElementCommand::doUnapply()
80 {
81 if (!m_element1 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable())
82 return;
83
84 Vector<RefPtr<Node> > children;
85 for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
86 children.append(node);
87
88 RefPtr<Node> refChild = m_element2->firstChild();
89
90 ExceptionCode ec = 0;
91
92 size_t size = children.size();
93 for (size_t i = 0; i < size; ++i)
94 m_element2->insertBefore(children[i].get(), refChild.get(), ec);
95
96 // Recover the id attribute of the original element.
97 if (m_element1->hasAttribute(HTMLNames::idAttr))
98 m_element2->setAttribute(HTMLNames::idAttr, m_element1->getAttribute(HTMLNames::idAttr));
99
100 m_element1->remove(ec);
101 }
102
doReapply()103 void SplitElementCommand::doReapply()
104 {
105 if (!m_element1)
106 return;
107
108 executeApply();
109 }
110
111 } // namespace WebCore
112