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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/RemoveNodeCommand.h"
28 
29 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
30 #include "core/dom/Node.h"
31 #include "wtf/Assertions.h"
32 
33 namespace blink {
34 
RemoveNodeCommand(PassRefPtrWillBeRawPtr<Node> node,ShouldAssumeContentIsAlwaysEditable shouldAssumeContentIsAlwaysEditable)35 RemoveNodeCommand::RemoveNodeCommand(PassRefPtrWillBeRawPtr<Node> node, ShouldAssumeContentIsAlwaysEditable shouldAssumeContentIsAlwaysEditable)
36     : SimpleEditCommand(node->document())
37     , m_node(node)
38     , m_shouldAssumeContentIsAlwaysEditable(shouldAssumeContentIsAlwaysEditable)
39 {
40     ASSERT(m_node);
41     ASSERT(m_node->parentNode());
42 }
43 
doApply()44 void RemoveNodeCommand::doApply()
45 {
46     ContainerNode* parent = m_node->parentNode();
47     if (!parent || (m_shouldAssumeContentIsAlwaysEditable == DoNotAssumeContentIsAlwaysEditable
48         && !parent->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable) && parent->inActiveDocument()))
49         return;
50     ASSERT(parent->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable) || !parent->inActiveDocument());
51 
52     m_parent = parent;
53     m_refChild = m_node->nextSibling();
54 
55     m_node->remove(IGNORE_EXCEPTION);
56 }
57 
doUnapply()58 void RemoveNodeCommand::doUnapply()
59 {
60     RefPtrWillBeRawPtr<ContainerNode> parent = m_parent.release();
61     RefPtrWillBeRawPtr<Node> refChild = m_refChild.release();
62     if (!parent || !parent->hasEditableStyle())
63         return;
64 
65     parent->insertBefore(m_node.get(), refChild.get(), IGNORE_EXCEPTION);
66 }
67 
trace(Visitor * visitor)68 void RemoveNodeCommand::trace(Visitor* visitor)
69 {
70     visitor->trace(m_node);
71     visitor->trace(m_parent);
72     visitor->trace(m_refChild);
73     SimpleEditCommand::trace(visitor);
74 }
75 
76 }
77