WebCore/editing/InsertNodeBeforeCommand.cpp

   1 /*
   2  * Copyright (C) 2005, 2008 Apple Computer, Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
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   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.
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  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
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  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 "htmlediting.h"
  30
  31 namespace WebCore {
  32
  33 InsertNodeBeforeCommand::InsertNodeBeforeCommand(PassRefPtr<Node> insertChild, PassRefPtr<Node> refChild)
  34     : SimpleEditCommand(refChild->document()), m_insertChild(insertChild), m_refChild(refChild)
  35 {
  36     ASSERT(m_insertChild);
  37     ASSERT(m_refChild);
  38 }
  39
  40 void InsertNodeBeforeCommand::doApply()
  41 {
  42     ASSERT(m_insertChild);
  43     ASSERT(m_refChild);
  44     ASSERT(m_refChild->parentNode());
  45     // If the child to insert is already in a tree, inserting it will remove it from it's old location
  46     // in an non-undoable way.  We might eventually find it useful to do an undoable remove in this case.
  47     ASSERT(!m_insertChild->parent());
  48     ASSERT(enclosingNodeOfType(Position(m_refChild->parentNode(), 0), &isContentEditable) || !m_refChild->parentNode()->attached());
  49
  50     ExceptionCode ec = 0;
  51     m_refChild->parentNode()->insertBefore(m_insertChild.get(), m_refChild.get(), ec);
  52     ASSERT(ec == 0);
  53 }
  54
  55 void InsertNodeBeforeCommand::doUnapply()
  56 {
  57     ASSERT(m_insertChild);
  58     ASSERT(m_refChild);
  59     ASSERT(m_refChild->parentNode());
  60
  61     ExceptionCode ec = 0;
  62     m_refChild->parentNode()->removeChild(m_insertChild.get(), ec);
  63     ASSERT(ec == 0);
  64 }
  65
  66 }