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