Home | History | Annotate | Download | only in editing 
      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/core/v8/ExceptionStatePlaceholder.h"
     35 #include "core/HTMLNames.h"
     36 #include "core/editing/htmlediting.h"
     37 #include "core/html/HTMLElement.h"
     38 #include "core/html/HTMLSpanElement.h"
     39 #include "wtf/Assertions.h"
     40 
     41 namespace blink {
     42 
     43 using namespace HTMLNames;
     44 
     45 ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(PassRefPtrWillBeRawPtr<HTMLElement> element)
     46     : SimpleEditCommand(element->document())
     47     , m_elementToReplace(element)
     48 {
     49     ASSERT(m_elementToReplace);
     50 }
     51 
     52 static void swapInNodePreservingAttributesAndChildren(HTMLElement* newElement, HTMLElement& elementToReplace)
     53 {
     54     ASSERT(elementToReplace.inDocument());
     55     RefPtrWillBeRawPtr<ContainerNode> parentNode = elementToReplace.parentNode();
     56     parentNode->insertBefore(newElement, &elementToReplace);
     57 
     58     NodeVector children;
     59     getChildNodes(elementToReplace, children);
     60     for (size_t i = 0; i < children.size(); ++i)
     61         newElement->appendChild(children[i]);
     62 
     63     // FIXME: Fix this to send the proper MutationRecords when MutationObservers are present.
     64     newElement->cloneDataFromElement(elementToReplace);
     65 
     66     parentNode->removeChild(&elementToReplace, ASSERT_NO_EXCEPTION);
     67 }
     68 
     69 void ReplaceNodeWithSpanCommand::doApply()
     70 {
     71     if (!m_elementToReplace->inDocument())
     72         return;
     73     if (!m_spanElement)
     74         m_spanElement = toHTMLSpanElement(createHTMLElement(m_elementToReplace->document(), spanTag).get());
     75     swapInNodePreservingAttributesAndChildren(m_spanElement.get(), *m_elementToReplace);
     76 }
     77 
     78 void ReplaceNodeWithSpanCommand::doUnapply()
     79 {
     80     if (!m_spanElement->inDocument())
     81         return;
     82     swapInNodePreservingAttributesAndChildren(m_elementToReplace.get(), *m_spanElement);
     83 }
     84 
     85 void ReplaceNodeWithSpanCommand::trace(Visitor* visitor)
     86 {
     87     visitor->trace(m_elementToReplace);
     88     visitor->trace(m_spanElement);
     89     SimpleEditCommand::trace(visitor);
     90 }
     91 
     92 } // namespace blink
     93