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      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 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 IndentOutdentCommand_h
     27 #define IndentOutdentCommand_h
     28 
     29 #include "core/editing/ApplyBlockElementCommand.h"
     30 #include "core/editing/EditAction.h"
     31 
     32 namespace blink {
     33 
     34 class IndentOutdentCommand FINAL : public ApplyBlockElementCommand {
     35 public:
     36     enum EIndentType { Indent, Outdent };
     37     static PassRefPtrWillBeRawPtr<IndentOutdentCommand> create(Document& document, EIndentType type)
     38     {
     39         return adoptRefWillBeNoop(new IndentOutdentCommand(document, type));
     40     }
     41 
     42     virtual bool preservesTypingStyle() const OVERRIDE { return true; }
     43 
     44 private:
     45     IndentOutdentCommand(Document&, EIndentType);
     46 
     47     virtual EditAction editingAction() const OVERRIDE { return m_typeOfAction == Indent ? EditActionIndent : EditActionOutdent; }
     48 
     49     void outdentRegion(const VisiblePosition&, const VisiblePosition&);
     50     void outdentParagraph();
     51     bool tryIndentingAsListItem(const Position&, const Position&);
     52     void indentIntoBlockquote(const Position&, const Position&, RefPtrWillBeRawPtr<HTMLElement>&);
     53 
     54     virtual void formatSelection(const VisiblePosition& startOfSelection, const VisiblePosition& endOfSelection) OVERRIDE;
     55     virtual void formatRange(const Position& start, const Position& end, const Position& endOfSelection, RefPtrWillBeRawPtr<HTMLElement>& blockquoteForNextIndent) OVERRIDE;
     56 
     57     EIndentType m_typeOfAction;
     58 };
     59 
     60 } // namespace blink
     61 
     62 #endif // IndentOutdentCommand_h
     63