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1 /* | |
2 * Copyright (C) 2005, 2006 Apple Computer, 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/MoveSelectionCommand.h" | |
28 | |
29 #include "core/dom/DocumentFragment.h" | |
30 #include "core/editing/ReplaceSelectionCommand.h" | |
31 | |
32 namespace blink { | |
33 | |
34 MoveSelectionCommand::MoveSelectionCommand(PassRefPtrWillBeRawPtr<DocumentFragme
nt> fragment, const Position& position, bool smartInsert, bool smartDelete) | |
35 : CompositeEditCommand(*position.document()), m_fragment(fragment), m_positi
on(position), m_smartInsert(smartInsert), m_smartDelete(smartDelete) | |
36 { | |
37 ASSERT(m_fragment); | |
38 } | |
39 | |
40 void MoveSelectionCommand::doApply() | |
41 { | |
42 ASSERT(endingSelection().isNonOrphanedRange()); | |
43 | |
44 Position pos = m_position; | |
45 if (pos.isNull()) | |
46 return; | |
47 | |
48 // Update the position otherwise it may become invalid after the selection i
s deleted. | |
49 Position selectionEnd = endingSelection().end(); | |
50 if (pos.isOffsetInAnchor() && selectionEnd.isOffsetInAnchor() | |
51 && selectionEnd.computeContainerNode() == pos.computeContainerNode() &&
selectionEnd.offsetInContainerNode() < pos.offsetInContainerNode()) { | |
52 pos = Position(pos.computeContainerNode(), pos.offsetInContainerNode() -
selectionEnd.offsetInContainerNode()); | |
53 | |
54 Position selectionStart = endingSelection().start(); | |
55 if (selectionStart.isOffsetInAnchor() && selectionStart.computeContainer
Node() == pos.computeContainerNode()) | |
56 pos = Position(pos.computeContainerNode(), pos.offsetInContainerNode
() + selectionStart.offsetInContainerNode()); | |
57 } | |
58 | |
59 deleteSelection(m_smartDelete); | |
60 | |
61 // If the node for the destination has been removed as a result of the delet
ion, | |
62 // set the destination to the ending point after the deletion. | |
63 // Fixes: <rdar://problem/3910425> REGRESSION (Mail): Crash in ReplaceSelect
ionCommand; | |
64 // selection is empty, leading to null deref | |
65 if (!pos.inDocument()) | |
66 pos = endingSelection().start(); | |
67 | |
68 cleanupAfterDeletion(VisiblePosition(pos)); | |
69 | |
70 setEndingSelection(VisibleSelection(pos, endingSelection().affinity(), endin
gSelection().isDirectional())); | |
71 if (!pos.inDocument()) { | |
72 // Document was modified out from under us. | |
73 return; | |
74 } | |
75 ReplaceSelectionCommand::CommandOptions options = ReplaceSelectionCommand::S
electReplacement | ReplaceSelectionCommand::PreventNesting; | |
76 if (m_smartInsert) | |
77 options |= ReplaceSelectionCommand::SmartReplace; | |
78 applyCommandToComposite(ReplaceSelectionCommand::create(document(), m_fragme
nt, options)); | |
79 } | |
80 | |
81 EditAction MoveSelectionCommand::editingAction() const | |
82 { | |
83 return EditActionDrag; | |
84 } | |
85 | |
86 DEFINE_TRACE(MoveSelectionCommand) | |
87 { | |
88 visitor->trace(m_fragment); | |
89 visitor->trace(m_position); | |
90 CompositeEditCommand::trace(visitor); | |
91 } | |
92 | |
93 } // namespace blink | |
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