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 "JoinTextNodesCommand.h"
28
29 #include "Text.h"
30
31 namespace WebCore {
32
JoinTextNodesCommand(PassRefPtr<Text> text1,PassRefPtr<Text> text2)33 JoinTextNodesCommand::JoinTextNodesCommand(PassRefPtr<Text> text1, PassRefPtr<Text> text2)
34 : SimpleEditCommand(text1->document()), m_text1(text1), m_text2(text2)
35 {
36 ASSERT(m_text1);
37 ASSERT(m_text2);
38 ASSERT(m_text1->nextSibling() == m_text2);
39 ASSERT(m_text1->length() > 0);
40 ASSERT(m_text2->length() > 0);
41 }
42
doApply()43 void JoinTextNodesCommand::doApply()
44 {
45 if (m_text1->nextSibling() != m_text2)
46 return;
47
48 ExceptionCode ec = 0;
49 m_text2->insertData(0, m_text1->data(), ec);
50 if (ec)
51 return;
52
53 m_text1->remove(ec);
54 }
55
doUnapply()56 void JoinTextNodesCommand::doUnapply()
57 {
58 if (m_text1->parentNode())
59 return;
60
61 Node* parent = m_text2->parentNode();
62 if (!parent)
63 return;
64
65 ExceptionCode ec = 0;
66
67 parent->insertBefore(m_text1.get(), m_text2.get(), ec);
68 if (ec)
69 return;
70
71 m_text2->deleteData(0, m_text1->length(), ec);
72 }
73
74 } // namespace WebCore
75