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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 InsertTextCommand_h
     27 #define InsertTextCommand_h
     28 
     29 #include "core/editing/CompositeEditCommand.h"
     30 
     31 namespace blink {
     32 
     33 class InsertTextCommand FINAL : public CompositeEditCommand {
     34 public:
     35     enum RebalanceType {
     36         RebalanceLeadingAndTrailingWhitespaces,
     37         RebalanceAllWhitespaces
     38     };
     39 
     40     static PassRefPtrWillBeRawPtr<InsertTextCommand> create(Document& document, const String& text, bool selectInsertedText = false,
     41         RebalanceType rebalanceType = RebalanceLeadingAndTrailingWhitespaces)
     42     {
     43         return adoptRefWillBeNoop(new InsertTextCommand(document, text, selectInsertedText, rebalanceType));
     44     }
     45 
     46 private:
     47     InsertTextCommand(Document&, const String& text, bool selectInsertedText, RebalanceType);
     48 
     49     virtual void doApply() OVERRIDE;
     50 
     51     Position positionInsideTextNode(const Position&);
     52     Position insertTab(const Position&);
     53 
     54     bool performTrivialReplace(const String&, bool selectInsertedText);
     55     bool performOverwrite(const String&, bool selectInsertedText);
     56     void setEndingSelectionWithoutValidation(const Position& startPosition, const Position& endPosition);
     57 
     58     friend class TypingCommand;
     59 
     60     String m_text;
     61     bool m_selectInsertedText;
     62     RebalanceType m_rebalanceType;
     63 };
     64 
     65 } // namespace blink
     66 
     67 #endif // InsertTextCommand_h
     68