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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 "core/editing/MergeIdenticalElementsCommand.h" | |
28 | |
29 #include "bindings/core/v8/ExceptionState.h" | |
30 #include "bindings/core/v8/ExceptionStatePlaceholder.h" | |
31 #include "core/dom/Element.h" | |
32 | |
33 namespace blink { | |
34 | |
35 MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(PassRefPtrWillBeRaw
Ptr<Element> first, PassRefPtrWillBeRawPtr<Element> second) | |
36 : SimpleEditCommand(first->document()) | |
37 , m_element1(first) | |
38 , m_element2(second) | |
39 { | |
40 ASSERT(m_element1); | |
41 ASSERT(m_element2); | |
42 ASSERT(m_element1->nextSibling() == m_element2); | |
43 } | |
44 | |
45 void MergeIdenticalElementsCommand::doApply() | |
46 { | |
47 if (m_element1->nextSibling() != m_element2 || !m_element1->hasEditableStyle
() || !m_element2->hasEditableStyle()) | |
48 return; | |
49 | |
50 m_atChild = m_element2->firstChild(); | |
51 | |
52 NodeVector children; | |
53 getChildNodes(*m_element1, children); | |
54 | |
55 for (auto& child : children) | |
56 m_element2->insertBefore(child.release(), m_atChild.get(), IGNORE_EXCEPT
ION); | |
57 | |
58 m_element1->remove(IGNORE_EXCEPTION); | |
59 } | |
60 | |
61 void MergeIdenticalElementsCommand::doUnapply() | |
62 { | |
63 ASSERT(m_element1); | |
64 ASSERT(m_element2); | |
65 | |
66 RefPtrWillBeRawPtr<Node> atChild = m_atChild.release(); | |
67 | |
68 ContainerNode* parent = m_element2->parentNode(); | |
69 if (!parent || !parent->hasEditableStyle()) | |
70 return; | |
71 | |
72 TrackExceptionState exceptionState; | |
73 | |
74 parent->insertBefore(m_element1.get(), m_element2.get(), exceptionState); | |
75 if (exceptionState.hadException()) | |
76 return; | |
77 | |
78 WillBeHeapVector<RefPtrWillBeMember<Node>> children; | |
79 for (Node* child = m_element2->firstChild(); child && child != atChild; chil
d = child->nextSibling()) | |
80 children.append(child); | |
81 | |
82 for (auto& child : children) | |
83 m_element1->appendChild(child.release(), exceptionState); | |
84 } | |
85 | |
86 DEFINE_TRACE(MergeIdenticalElementsCommand) | |
87 { | |
88 visitor->trace(m_element1); | |
89 visitor->trace(m_element2); | |
90 visitor->trace(m_atChild); | |
91 SimpleEditCommand::trace(visitor); | |
92 } | |
93 | |
94 } // namespace blink | |
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