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
31namespace WebCore {
32
33class DocumentFragment;
34class EditingStyle;
35class ReplacementFragment;
36
37class ReplaceSelectionCommand : public CompositeEditCommand {
38public:
39    enum CommandOption {
40        SelectReplacement = 1 << 0,
41        SmartReplace = 1 << 1,
42        MatchStyle = 1 << 2,
43        PreventNesting = 1 << 3,
44        MovingParagraph = 1 << 4
45    };
46
47    typedef unsigned CommandOptions;
48
49    static PassRefPtr<ReplaceSelectionCommand> create(Document* document, PassRefPtr<DocumentFragment> fragment, CommandOptions options, EditAction action = EditActionPaste)
50    {
51        return adoptRef(new ReplaceSelectionCommand(document, fragment, options, action));
52    }
53
54private:
55    ReplaceSelectionCommand(Document*, PassRefPtr<DocumentFragment>, CommandOptions, EditAction);
56
57    virtual void doApply();
58    virtual EditAction editingAction() const;
59
60    void completeHTMLReplacement(const Position& lastPositionToSelect);
61
62    void insertNodeAfterAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);
63    void insertNodeAtAndUpdateNodesInserted(PassRefPtr<Node>, const Position&);
64    void insertNodeBeforeAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);
65    Node* insertAsListItems(PassRefPtr<Node>, Node* insertionNode, const Position&);
66
67    void updateNodesInserted(Node*);
68    bool shouldRemoveEndBR(Node*, const VisiblePosition&);
69
70    bool shouldMergeStart(bool, bool, bool);
71    bool shouldMergeEnd(bool selectEndWasEndOfParagraph);
72    bool shouldMerge(const VisiblePosition&, const VisiblePosition&);
73
74    void mergeEndIfNeeded();
75
76    void removeUnrenderedTextNodesAtEnds();
77
78    void negateStyleRulesThatAffectAppearance();
79    void handleStyleSpans();
80    void copyStyleToChildren(Node* parentNode, const CSSMutableStyleDeclaration* parentStyle);
81    void handlePasteAsQuotationNode();
82
83    virtual void removeNodePreservingChildren(Node*);
84    virtual void removeNodeAndPruneAncestors(Node*);
85
86    VisiblePosition positionAtStartOfInsertedContent();
87    VisiblePosition positionAtEndOfInsertedContent();
88
89    bool performTrivialReplace(const ReplacementFragment&);
90
91    RefPtr<Node> m_firstNodeInserted;
92    RefPtr<Node> m_lastLeafInserted;
93    RefPtr<EditingStyle> m_insertionStyle;
94    bool m_selectReplacement;
95    bool m_smartReplace;
96    bool m_matchStyle;
97    RefPtr<DocumentFragment> m_documentFragment;
98    bool m_preventNesting;
99    bool m_movingParagraph;
100    EditAction m_editAction;
101    bool m_shouldMergeEnd;
102};
103
104} // namespace WebCore
105
106#endif // ReplaceSelectionCommand_h
107