1/*
2 * Copyright (c) 2009 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
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
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "core/editing/ReplaceNodeWithSpanCommand.h"
33
34#include "bindings/core/v8/ExceptionStatePlaceholder.h"
35#include "core/HTMLNames.h"
36#include "core/editing/htmlediting.h"
37#include "core/html/HTMLElement.h"
38#include "core/html/HTMLSpanElement.h"
39#include "wtf/Assertions.h"
40
41namespace blink {
42
43using namespace HTMLNames;
44
45ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(PassRefPtrWillBeRawPtr<HTMLElement> element)
46    : SimpleEditCommand(element->document())
47    , m_elementToReplace(element)
48{
49    ASSERT(m_elementToReplace);
50}
51
52static void swapInNodePreservingAttributesAndChildren(HTMLElement* newElement, HTMLElement& elementToReplace)
53{
54    ASSERT(elementToReplace.inDocument());
55    RefPtrWillBeRawPtr<ContainerNode> parentNode = elementToReplace.parentNode();
56    parentNode->insertBefore(newElement, &elementToReplace);
57
58    NodeVector children;
59    getChildNodes(elementToReplace, children);
60    for (size_t i = 0; i < children.size(); ++i)
61        newElement->appendChild(children[i]);
62
63    // FIXME: Fix this to send the proper MutationRecords when MutationObservers are present.
64    newElement->cloneDataFromElement(elementToReplace);
65
66    parentNode->removeChild(&elementToReplace, ASSERT_NO_EXCEPTION);
67}
68
69void ReplaceNodeWithSpanCommand::doApply()
70{
71    if (!m_elementToReplace->inDocument())
72        return;
73    if (!m_spanElement)
74        m_spanElement = toHTMLSpanElement(createHTMLElement(m_elementToReplace->document(), spanTag).get());
75    swapInNodePreservingAttributesAndChildren(m_spanElement.get(), *m_elementToReplace);
76}
77
78void ReplaceNodeWithSpanCommand::doUnapply()
79{
80    if (!m_spanElement->inDocument())
81        return;
82    swapInNodePreservingAttributesAndChildren(m_elementToReplace.get(), *m_spanElement);
83}
84
85void ReplaceNodeWithSpanCommand::trace(Visitor* visitor)
86{
87    visitor->trace(m_elementToReplace);
88    visitor->trace(m_spanElement);
89    SimpleEditCommand::trace(visitor);
90}
91
92} // namespace blink
93