WebCore/editing/WrapContentsInDummySpanCommand.cpp

   1 /*
   2  * Copyright (C) 2005 Apple Computer, 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 "WrapContentsInDummySpanCommand.h"
  28
  29 #include "ApplyStyleCommand.h"
  30 #include "HTMLElement.h"
  31
  32 namespace WebCore {
  33
  34 WrapContentsInDummySpanCommand::WrapContentsInDummySpanCommand(PassRefPtr<Element> element)
  35     : SimpleEditCommand(element->document()), m_element(element)
  36 {
  37     ASSERT(m_element);
  38 }
  39
  40 void WrapContentsInDummySpanCommand::doApply()
  41 {
  42     ASSERT(m_element);
  43
  44     ExceptionCode ec = 0;
  45
  46     if (!m_dummySpan)
  47         m_dummySpan = static_pointer_cast<HTMLElement>(createStyleSpanElement(document()));
  48
  49     while (m_element->firstChild()) {
  50         m_dummySpan->appendChild(m_element->firstChild(), ec);
  51         ASSERT(ec == 0);
  52     }
  53
  54     m_element->appendChild(m_dummySpan.get(), ec);
  55     ASSERT(ec == 0);
  56 }
  57
  58 void WrapContentsInDummySpanCommand::doUnapply()
  59 {
  60     ASSERT(m_element);
  61     ASSERT(m_dummySpan);
  62
  63     ASSERT(m_element->firstChild() == m_dummySpan);
  64     ASSERT(!m_element->firstChild()->nextSibling());
  65
  66     ExceptionCode ec = 0;
  67
  68     while (m_dummySpan->firstChild()) {
  69         m_element->appendChild(m_dummySpan->firstChild(), ec);
  70         ASSERT(ec == 0);
  71     }
  72
  73     m_element->removeChild(m_dummySpan.get(), ec);
  74     ASSERT(ec == 0);
  75 }
  76
  77 } // namespace WebCore