1/*
2 * Copyright (C) 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 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 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#pragma once
27
28#include "ApplyBlockElementCommand.h"
29#include "EditAction.h"
30
31namespace WebCore {
32
33class IndentOutdentCommand : public ApplyBlockElementCommand {
34public:
35 enum EIndentType { Indent, Outdent };
36 static Ref<IndentOutdentCommand> create(Document& document, EIndentType type)
37 {
38 return adoptRef(*new IndentOutdentCommand(document, type));
39 }
40
41 bool preservesTypingStyle() const override { return true; }
42
43private:
44 IndentOutdentCommand(Document&, EIndentType);
45
46 EditAction editingAction() const override { return m_typeOfAction == Indent ? EditAction::Indent : EditAction::Outdent; }
47
48 void indentRegion(const VisiblePosition&, const VisiblePosition&);
49 void outdentRegion(const VisiblePosition&, const VisiblePosition&);
50 void outdentParagraph();
51 bool tryIndentingAsListItem(const Position&, const Position&);
52 void indentIntoBlockquote(const Position&, const Position&, RefPtr<Element>&);
53
54 void formatSelection(const VisiblePosition& startOfSelection, const VisiblePosition& endOfSelection) override;
55 void formatRange(const Position& start, const Position& end, const Position& endOfSelection, RefPtr<Element>& blockquoteForNextIndent) override;
56
57 EIndentType m_typeOfAction;
58};
59
60} // namespace WebCore
61