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/v8/ExceptionStatePlaceholder.h"
30#include "core/dom/Node.h"
31#include "wtf/Assertions.h"
32
33namespace WebCore {
34
35RemoveNodeCommand::RemoveNodeCommand(PassRefPtr<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
44void RemoveNodeCommand::doApply()
45{
46    ContainerNode* parent = m_node->parentNode();
47    if (!parent || (m_shouldAssumeContentIsAlwaysEditable == DoNotAssumeContentIsAlwaysEditable
48        && !parent->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable) && parent->attached()))
49        return;
50    ASSERT(parent->isContentEditable(Node::UserSelectAllIsAlwaysNonEditable) || !parent->attached());
51
52    m_parent = parent;
53    m_refChild = m_node->nextSibling();
54
55    m_node->remove(IGNORE_EXCEPTION);
56}
57
58void RemoveNodeCommand::doUnapply()
59{
60    RefPtr<ContainerNode> parent = m_parent.release();
61    RefPtr<Node> refChild = m_refChild.release();
62    if (!parent || !parent->rendererIsEditable())
63        return;
64
65    parent->insertBefore(m_node.get(), refChild.get(), IGNORE_EXCEPTION);
66}
67
68#ifndef NDEBUG
69void RemoveNodeCommand::getNodesInCommand(HashSet<Node*>& nodes)
70{
71    addNodeAndDescendants(m_parent.get(), nodes);
72    addNodeAndDescendants(m_refChild.get(), nodes);
73    addNodeAndDescendants(m_node.get(), nodes);
74}
75#endif
76
77}
78