third_party/WebKit/Source/core/editing/InsertTextCommand.h

   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     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