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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 "SplitElementCommand.h"
     28 
     29 #include "Element.h"
     30 #include <wtf/Assertions.h>
     31 
     32 namespace WebCore {
     33 
     34 SplitElementCommand::SplitElementCommand(PassRefPtr<Element> element, PassRefPtr<Node> atChild)
     35     : SimpleEditCommand(element->document())
     36     , m_element2(element)
     37     , m_atChild(atChild)
     38 {
     39     ASSERT(m_element2);
     40     ASSERT(m_atChild);
     41     ASSERT(m_atChild->parentNode() == m_element2);
     42 }
     43 
     44 void SplitElementCommand::executeApply()
     45 {
     46     if (m_atChild->parentNode() != m_element2)
     47         return;
     48 
     49     Vector<RefPtr<Node> > children;
     50     for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling())
     51         children.append(node);
     52 
     53     ExceptionCode ec = 0;
     54 
     55     Node* parent = m_element2->parentNode();
     56     if (!parent || !parent->isContentEditable())
     57         return;
     58     parent->insertBefore(m_element1.get(), m_element2.get(), ec);
     59     if (ec)
     60         return;
     61 
     62     size_t size = children.size();
     63     for (size_t i = 0; i < size; ++i)
     64         m_element1->appendChild(children[i], ec);
     65 }
     66 
     67 void SplitElementCommand::doApply()
     68 {
     69     m_element1 = m_element2->cloneElementWithoutChildren();
     70 
     71     executeApply();
     72 }
     73 
     74 void SplitElementCommand::doUnapply()
     75 {
     76     if (!m_element1 || !m_element1->isContentEditable() || !m_element2->isContentEditable())
     77         return;
     78 
     79     Vector<RefPtr<Node> > children;
     80     for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
     81         children.append(node);
     82 
     83     RefPtr<Node> refChild = m_element2->firstChild();
     84 
     85     ExceptionCode ec = 0;
     86 
     87     size_t size = children.size();
     88     for (size_t i = 0; i < size; ++i)
     89         m_element2->insertBefore(children[i].get(), refChild.get(), ec);
     90 
     91     m_element1->remove(ec);
     92 }
     93 
     94 void SplitElementCommand::doReapply()
     95 {
     96     if (!m_element1)
     97         return;
     98 
     99     executeApply();
    100 }
    101 
    102 } // namespace WebCore
    103