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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 "InsertIntoTextNodeCommand.h"
28 
29 #include "AXObjectCache.h"
30 #include "Text.h"
31 #include "RenderText.h"
32 #include "Settings.h"
33 
34 namespace WebCore {
35 
InsertIntoTextNodeCommand(PassRefPtr<Text> node,unsigned offset,const String & text)36 InsertIntoTextNodeCommand::InsertIntoTextNodeCommand(PassRefPtr<Text> node, unsigned offset, const String& text)
37     : SimpleEditCommand(node->document())
38     , m_node(node)
39     , m_offset(offset)
40     , m_text(text)
41 {
42     ASSERT(m_node);
43     ASSERT(m_offset <= m_node->length());
44     ASSERT(!m_text.isEmpty());
45 }
46 
doApply()47 void InsertIntoTextNodeCommand::doApply()
48 {
49     if (!m_node->rendererIsEditable())
50         return;
51 
52     if (document()->settings() && document()->settings()->passwordEchoEnabled()) {
53         RenderText* renderText = toRenderText(m_node->renderer());
54         if (renderText && renderText->isSecure())
55             renderText->momentarilyRevealLastTypedCharacter(m_offset + m_text.length() - 1);
56     }
57 
58     ExceptionCode ec;
59     m_node->insertData(m_offset, m_text, ec);
60 
61     if (AXObjectCache::accessibilityEnabled())
62         document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextInserted, m_offset, m_text.length());
63 }
64 
doUnapply()65 void InsertIntoTextNodeCommand::doUnapply()
66 {
67     if (!m_node->rendererIsEditable())
68         return;
69 
70     // Need to notify this before actually deleting the text
71     if (AXObjectCache::accessibilityEnabled())
72         document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextDeleted, m_offset, m_text.length());
73 
74     ExceptionCode ec;
75     m_node->deleteData(m_offset, m_text.length(), ec);
76 }
77 
78 } // namespace WebCore
79