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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 
     32 namespace WebCore {
     33 
     34 InsertIntoTextNodeCommand::InsertIntoTextNodeCommand(PassRefPtr<Text> node, unsigned offset, const String& text)
     35     : SimpleEditCommand(node->document())
     36     , m_node(node)
     37     , m_offset(offset)
     38     , m_text(text)
     39 {
     40     ASSERT(m_node);
     41     ASSERT(m_offset <= m_node->length());
     42     ASSERT(!m_text.isEmpty());
     43 }
     44 
     45 void InsertIntoTextNodeCommand::doApply()
     46 {
     47     if (!m_node->rendererIsEditable())
     48         return;
     49 
     50     ExceptionCode ec;
     51     m_node->insertData(m_offset, m_text, ec);
     52 
     53     if (AXObjectCache::accessibilityEnabled())
     54         document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextInserted, m_offset, m_text.length());
     55 }
     56 
     57 void InsertIntoTextNodeCommand::doUnapply()
     58 {
     59     if (!m_node->rendererIsEditable())
     60         return;
     61 
     62     // Need to notify this before actually deleting the text
     63     if (AXObjectCache::accessibilityEnabled())
     64         document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextDeleted, m_offset, m_text.length());
     65 
     66     ExceptionCode ec;
     67     m_node->deleteData(m_offset, m_text.length(), ec);
     68 }
     69 
     70 } // namespace WebCore
     71