1 /*

     2  * Copyright (c) 2009 Google 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 are

     6  * met:

     7  * 

     8  *     * Redistributions of source code must retain the above copyright

     9  * notice, this list of conditions and the following disclaimer.

    10  *     * Redistributions in binary form must reproduce the above

    11  * copyright notice, this list of conditions and the following disclaimer

    12  * in the documentation and/or other materials provided with the

    13  * distribution.

    14  *     * Neither the name of Google Inc. nor the names of its

    15  * contributors may be used to endorse or promote products derived from

    16  * this software without specific prior written permission.

    17  * 

    18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

    22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

    24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

    26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    29  */

    30 

    31 #include "config.h"

    32 #include "ReplaceNodeWithSpanCommand.h"

    33 

    34 #include "htmlediting.h"

    35 #include "HTMLElement.h"

    36 #include "HTMLNames.h"

    37 

    38 #include <wtf/Assertions.h>

    39 

    40 namespace WebCore {

    41 

    42 using namespace HTMLNames;

    43 

    44 ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(PassRefPtr<Node> node)

    45     : CompositeEditCommand(node->document())

    46     , m_node(node)

    47 {

    48     ASSERT(m_node);

    49 }

    50 

    51 static void swapInNodePreservingAttributesAndChildren(Node* newNode, Node* nodeToReplace)

    52 {

    53     ASSERT(nodeToReplace->inDocument());

    54     ExceptionCode ec = 0;

    55     Node* parentNode = nodeToReplace->parentNode();

    56     parentNode->insertBefore(newNode, nodeToReplace, ec);

    57     ASSERT(!ec);

    58 

    59     Node* nextChild;

    60     for (Node* child = nodeToReplace->firstChild(); child; child = nextChild) {

    61         nextChild = child->nextSibling();

    62         newNode->appendChild(child, ec);

    63         ASSERT(!ec);

    64     }

    65 

    66     newNode->attributes()->setAttributes(*nodeToReplace->attributes());

    67 

    68     parentNode->removeChild(nodeToReplace, ec);

    69     ASSERT(!ec);

    70 }

    71 

    72 void ReplaceNodeWithSpanCommand::doApply()

    73 {

    74     if (!m_node->inDocument())

    75         return;

    76     if (!m_spanElement)

    77         m_spanElement = createHTMLElement(m_node->document(), spanTag);

    78     swapInNodePreservingAttributesAndChildren(m_spanElement.get(), m_node.get());

    79 }

    80 

    81 void ReplaceNodeWithSpanCommand::doUnapply()

    82 {

    83     if (!m_spanElement->inDocument())

    84         return;

    85     swapInNodePreservingAttributesAndChildren(m_node.get(), m_spanElement.get());

    86 }

    87 

    88 } // namespace WebCore