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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 "core/editing/WrapContentsInDummySpanCommand.h"
     28 
     29 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
     30 #include "core/editing/ApplyStyleCommand.h"
     31 #include "core/html/HTMLSpanElement.h"
     32 
     33 namespace blink {
     34 
     35 WrapContentsInDummySpanCommand::WrapContentsInDummySpanCommand(PassRefPtrWillBeRawPtr<Element> element)
     36     : SimpleEditCommand(element->document())
     37     , m_element(element)
     38 {
     39     ASSERT(m_element);
     40 }
     41 
     42 void WrapContentsInDummySpanCommand::executeApply()
     43 {
     44     NodeVector children;
     45     getChildNodes(*m_element, children);
     46 
     47     size_t size = children.size();
     48     for (size_t i = 0; i < size; ++i)
     49         m_dummySpan->appendChild(children[i].release(), IGNORE_EXCEPTION);
     50 
     51     m_element->appendChild(m_dummySpan.get(), IGNORE_EXCEPTION);
     52 }
     53 
     54 void WrapContentsInDummySpanCommand::doApply()
     55 {
     56     m_dummySpan = createStyleSpanElement(document());
     57 
     58     executeApply();
     59 }
     60 
     61 void WrapContentsInDummySpanCommand::doUnapply()
     62 {
     63     ASSERT(m_element);
     64 
     65     if (!m_dummySpan || !m_element->hasEditableStyle())
     66         return;
     67 
     68     NodeVector children;
     69     getChildNodes(*m_dummySpan, children);
     70 
     71     size_t size = children.size();
     72     for (size_t i = 0; i < size; ++i)
     73         m_element->appendChild(children[i].release(), IGNORE_EXCEPTION);
     74 
     75     m_dummySpan->remove(IGNORE_EXCEPTION);
     76 }
     77 
     78 void WrapContentsInDummySpanCommand::doReapply()
     79 {
     80     ASSERT(m_element);
     81 
     82     if (!m_dummySpan || !m_element->hasEditableStyle())
     83         return;
     84 
     85     executeApply();
     86 }
     87 
     88 void WrapContentsInDummySpanCommand::trace(Visitor* visitor)
     89 {
     90     visitor->trace(m_element);
     91     visitor->trace(m_dummySpan);
     92     SimpleEditCommand::trace(visitor);
     93 }
     94 
     95 } // namespace blink
     96