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1 /*
2  * Copyright (C) 2005, 2006, 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 #ifndef ReplaceSelectionCommand_h
27 #define ReplaceSelectionCommand_h
28 
29 #include "CompositeEditCommand.h"
30 
31 namespace WebCore {
32 
33 class DocumentFragment;
34 class ReplacementFragment;
35 
36 class ReplaceSelectionCommand : public CompositeEditCommand {
37 public:
38     static PassRefPtr<ReplaceSelectionCommand> create(Document* document, PassRefPtr<DocumentFragment> fragment,
39         bool selectReplacement = true, bool smartReplace = false, bool matchStyle = false, bool preventNesting = true, bool movingParagraph = false,
40         EditAction action = EditActionPaste)
41     {
42         return adoptRef(new ReplaceSelectionCommand(document, fragment, selectReplacement, smartReplace, matchStyle, preventNesting, movingParagraph, action));
43     }
44 
45 private:
46     ReplaceSelectionCommand(Document*, PassRefPtr<DocumentFragment>,
47         bool selectReplacement, bool smartReplace, bool matchStyle, bool preventNesting, bool movingParagraph, EditAction);
48 
49     virtual void doApply();
50     virtual EditAction editingAction() const;
51 
52     void completeHTMLReplacement(const Position& lastPositionToSelect);
53 
54     void insertNodeAfterAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);
55     void insertNodeAtAndUpdateNodesInserted(PassRefPtr<Node>, const Position&);
56     void insertNodeBeforeAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);
57 
58     void updateNodesInserted(Node*);
59     bool shouldRemoveEndBR(Node*, const VisiblePosition&);
60 
61     bool shouldMergeStart(bool, bool, bool);
62     bool shouldMergeEnd(bool selectEndWasEndOfParagraph);
63     bool shouldMerge(const VisiblePosition&, const VisiblePosition&);
64 
65     void mergeEndIfNeeded();
66 
67     void removeUnrenderedTextNodesAtEnds();
68 
69     void negateStyleRulesThatAffectAppearance();
70     void handleStyleSpans();
71     void handlePasteAsQuotationNode();
72 
73     virtual void removeNodePreservingChildren(Node*);
74     virtual void removeNodeAndPruneAncestors(Node*);
75 
76     VisiblePosition positionAtStartOfInsertedContent();
77     VisiblePosition positionAtEndOfInsertedContent();
78 
79     bool performTrivialReplace(const ReplacementFragment&);
80 
81     RefPtr<Node> m_firstNodeInserted;
82     RefPtr<Node> m_lastLeafInserted;
83     RefPtr<CSSMutableStyleDeclaration> m_insertionStyle;
84     bool m_selectReplacement;
85     bool m_smartReplace;
86     bool m_matchStyle;
87     RefPtr<DocumentFragment> m_documentFragment;
88     bool m_preventNesting;
89     bool m_movingParagraph;
90     EditAction m_editAction;
91     bool m_shouldMergeEnd;
92 };
93 
94 } // namespace WebCore
95 
96 #endif // ReplaceSelectionCommand_h
97