ReplaceNodeWithSpanCommand.cpp revision 5f1ab04193ad0130ca8204aadaceae083aca9881 
1/*
2 * Copyright (c) 2009 Google Inc. All rights reserved.
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5 * modification, are permitted provided that the following conditions are
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9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
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12 * in the documentation and/or other materials provided with the
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15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 */
30
31#include "config.h"
32#include "ReplaceNodeWithSpanCommand.h"
33
34#include "htmlediting.h"
35#include "HTMLElement.h"
36#include "HTMLNames.h"
37#include "NamedAttrMap.h"
38
39#include <wtf/Assertions.h>
40
41namespace WebCore {
42
43using namespace HTMLNames;
44
45ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(PassRefPtr<Node> node)
46    : CompositeEditCommand(node->document())
47    , m_node(node)
48{
49    ASSERT(m_node);
50}
51
52static void swapInNodePreservingAttributesAndChildren(Node* newNode, Node* nodeToReplace)
53{
54    ASSERT(nodeToReplace->inDocument());
55    ExceptionCode ec = 0;
56    Node* parentNode = nodeToReplace->parentNode();
57    parentNode->insertBefore(newNode, nodeToReplace, ec);
58    ASSERT(!ec);
59
60    for (Node* child = nodeToReplace->firstChild(); child; child = child->nextSibling()) {
61        newNode->appendChild(child, ec);
62        ASSERT(!ec);
63    }
64
65    newNode->attributes()->setAttributes(*nodeToReplace->attributes());
66
67    parentNode->removeChild(nodeToReplace, ec);
68    ASSERT(!ec);
69}
70
71void ReplaceNodeWithSpanCommand::doApply()
72{
73    if (!m_node->inDocument())
74        return;
75    if (!m_spanElement)
76        m_spanElement = createHTMLElement(m_node->document(), spanTag);
77    swapInNodePreservingAttributesAndChildren(m_spanElement.get(), m_node.get());
78}
79
80void ReplaceNodeWithSpanCommand::doUnapply()
81{
82    if (!m_spanElement->inDocument())
83        return;
84    swapInNodePreservingAttributesAndChildren(m_node.get(), m_spanElement.get());
85}
86
87} // namespace WebCore
88