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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/InsertNodeBeforeCommand.h"
     28 
     29 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
     30 
     31 namespace blink {
     32 
     33 InsertNodeBeforeCommand::InsertNodeBeforeCommand(PassRefPtrWillBeRawPtr<Node> insertChild, PassRefPtrWillBeRawPtr<Node> refChild,
     34     ShouldAssumeContentIsAlwaysEditable shouldAssumeContentIsAlwaysEditable)
     35     : SimpleEditCommand(refChild->document())
     36     , m_insertChild(insertChild)
     37     , m_refChild(refChild)
     38     , m_shouldAssumeContentIsAlwaysEditable(shouldAssumeContentIsAlwaysEditable)
     39 {
     40     ASSERT(m_insertChild);
     41     ASSERT(!m_insertChild->parentNode());
     42     ASSERT(m_refChild);
     43     ASSERT(m_refChild->parentNode());
     44 
     45     ASSERT(m_refChild->parentNode()->hasEditableStyle() || !m_refChild->parentNode()->inActiveDocument());
     46 }
     47 
     48 void InsertNodeBeforeCommand::doApply()
     49 {
     50     ContainerNode* parent = m_refChild->parentNode();
     51     if (!parent || (m_shouldAssumeContentIsAlwaysEditable == DoNotAssumeContentIsAlwaysEditable && !parent->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable)))
     52         return;
     53     ASSERT(parent->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable));
     54 
     55     parent->insertBefore(m_insertChild.get(), m_refChild.get(), IGNORE_EXCEPTION);
     56 }
     57 
     58 void InsertNodeBeforeCommand::doUnapply()
     59 {
     60     if (!m_insertChild->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable))
     61         return;
     62 
     63     m_insertChild->remove(IGNORE_EXCEPTION);
     64 }
     65 
     66 void InsertNodeBeforeCommand::trace(Visitor* visitor)
     67 {
     68     visitor->trace(m_insertChild);
     69     visitor->trace(m_refChild);
     70     SimpleEditCommand::trace(visitor);
     71 }
     72 
     73 }
     74