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      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 "core/editing/ReplaceNodeWithSpanCommand.h"
     33 
     34 #include "bindings/v8/ExceptionStatePlaceholder.h"
     35 #include "core/HTMLNames.h"
     36 #include "core/editing/htmlediting.h"
     37 #include "core/html/HTMLElement.h"
     38 #include "wtf/Assertions.h"
     39 
     40 namespace WebCore {
     41 
     42 using namespace HTMLNames;
     43 
     44 ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(PassRefPtrWillBeRawPtr<HTMLElement> element)
     45     : SimpleEditCommand(element->document())
     46     , m_elementToReplace(element)
     47 {
     48     ASSERT(m_elementToReplace);
     49 }
     50 
     51 static void swapInNodePreservingAttributesAndChildren(HTMLElement* newNode, HTMLElement& nodeToReplace)
     52 {
     53     ASSERT(nodeToReplace.inDocument());
     54     RefPtrWillBeRawPtr<ContainerNode> parentNode = nodeToReplace.parentNode();
     55     parentNode->insertBefore(newNode, &nodeToReplace);
     56 
     57     NodeVector children;
     58     getChildNodes(nodeToReplace, children);
     59     for (size_t i = 0; i < children.size(); ++i)
     60         newNode->appendChild(children[i]);
     61 
     62     // FIXME: Fix this to send the proper MutationRecords when MutationObservers are present.
     63     newNode->cloneDataFromElement(nodeToReplace);
     64 
     65     parentNode->removeChild(&nodeToReplace, ASSERT_NO_EXCEPTION);
     66 }
     67 
     68 void ReplaceNodeWithSpanCommand::doApply()
     69 {
     70     if (!m_elementToReplace->inDocument())
     71         return;
     72     if (!m_spanElement)
     73         m_spanElement = createHTMLElement(m_elementToReplace->document(), spanTag);
     74     swapInNodePreservingAttributesAndChildren(m_spanElement.get(), *m_elementToReplace);
     75 }
     76 
     77 void ReplaceNodeWithSpanCommand::doUnapply()
     78 {
     79     if (!m_spanElement->inDocument())
     80         return;
     81     swapInNodePreservingAttributesAndChildren(m_elementToReplace.get(), *m_spanElement);
     82 }
     83 
     84 void ReplaceNodeWithSpanCommand::trace(Visitor* visitor)
     85 {
     86     visitor->trace(m_elementToReplace);
     87     visitor->trace(m_spanElement);
     88     SimpleEditCommand::trace(visitor);
     89 }
     90 
     91 } // namespace WebCore
     92