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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/SplitTextNodeContainingElementCommand.h"
     28 
     29 #include "core/dom/Element.h"
     30 #include "core/dom/Text.h"
     31 #include "core/rendering/RenderObject.h"
     32 #include "wtf/Assertions.h"
     33 
     34 namespace blink {
     35 
     36 SplitTextNodeContainingElementCommand::SplitTextNodeContainingElementCommand(PassRefPtrWillBeRawPtr<Text> text, int offset)
     37     : CompositeEditCommand(text->document()), m_text(text), m_offset(offset)
     38 {
     39     ASSERT(m_text);
     40     ASSERT(m_text->length() > 0);
     41 }
     42 
     43 void SplitTextNodeContainingElementCommand::doApply()
     44 {
     45     ASSERT(m_text);
     46     ASSERT(m_offset > 0);
     47 
     48     splitTextNode(m_text.get(), m_offset);
     49 
     50     Element* parent = m_text->parentElement();
     51     if (!parent || !parent->parentElement() || !parent->parentElement()->hasEditableStyle())
     52         return;
     53 
     54     RenderObject* parentRenderer = parent->renderer();
     55     if (!parentRenderer || !parentRenderer->isInline()) {
     56         wrapContentsInDummySpan(parent);
     57         Node* firstChild = parent->firstChild();
     58         if (!firstChild || !firstChild->isElementNode())
     59             return;
     60         parent = toElement(firstChild);
     61     }
     62 
     63     splitElement(parent, m_text.get());
     64 }
     65 
     66 void SplitTextNodeContainingElementCommand::trace(Visitor* visitor)
     67 {
     68     visitor->trace(m_text);
     69     CompositeEditCommand::trace(visitor);
     70 }
     71 
     72 }
     73