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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 "InsertNodeBeforeCommand.h"
28 
29 #include "AXObjectCache.h"
30 #include "htmlediting.h"
31 
32 namespace WebCore {
33 
InsertNodeBeforeCommand(PassRefPtr<Node> insertChild,PassRefPtr<Node> refChild)34 InsertNodeBeforeCommand::InsertNodeBeforeCommand(PassRefPtr<Node> insertChild, PassRefPtr<Node> refChild)
35     : SimpleEditCommand(refChild->document())
36     , m_insertChild(insertChild)
37     , m_refChild(refChild)
38 {
39     ASSERT(m_insertChild);
40     ASSERT(!m_insertChild->parentNode());
41     ASSERT(m_refChild);
42     ASSERT(m_refChild->parentNode());
43 
44     ASSERT(m_refChild->parentNode()->rendererIsEditable() || !m_refChild->parentNode()->attached());
45 }
46 
doApply()47 void InsertNodeBeforeCommand::doApply()
48 {
49     ContainerNode* parent = m_refChild->parentNode();
50     if (!parent || !parent->rendererIsEditable())
51         return;
52 
53     ExceptionCode ec;
54     parent->insertBefore(m_insertChild.get(), m_refChild.get(), ec);
55 
56     if (AXObjectCache::accessibilityEnabled())
57         document()->axObjectCache()->nodeTextChangeNotification(m_insertChild->renderer(), AXObjectCache::AXTextInserted, 0, m_insertChild->nodeValue().length());
58 }
59 
doUnapply()60 void InsertNodeBeforeCommand::doUnapply()
61 {
62     if (!m_insertChild->rendererIsEditable())
63         return;
64 
65     // Need to notify this before actually deleting the text
66     if (AXObjectCache::accessibilityEnabled())
67         document()->axObjectCache()->nodeTextChangeNotification(m_insertChild->renderer(), AXObjectCache::AXTextDeleted, 0, m_insertChild->nodeValue().length());
68 
69     ExceptionCode ec;
70     m_insertChild->remove(ec);
71 }
72 
73 }
74