text: /*
   * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   *
   */
  
  #ifndef SKY_ENGINE_CORE_DOM_TEXT_H_
  #define SKY_ENGINE_CORE_DOM_TEXT_H_
  
  #include "sky/engine/core/dom/CharacterData.h"
  
  namespace blink {
  
  class ExceptionState;
  class RenderText;
  
  class Text : public CharacterData {
      DEFINE_WRAPPERTYPEINFO();
  public:
      static const unsigned defaultLengthLimit = 1 << 16;
  
      static PassRefPtr<Text> create(Document&, const String&);
      static PassRefPtr<Text> createEditingText(Document&, const String&);
  
      RenderText* renderer() const;
  
      PassRefPtr<Text> splitText(unsigned offset, ExceptionState&);
  
      void recalcTextStyle(StyleRecalcChange, Text* nextTextSibling);
      bool textRendererIsNeeded(const RenderStyle&, const RenderObject& parent);
      RenderText* createTextRenderer(RenderStyle*);
      void updateTextRenderer(unsigned offsetOfReplacedData, unsigned lengthOfReplacedData, RecalcStyleBehavior = DoNotRecalcStyle);
  
      virtual void attach(const AttachContext& = AttachContext()) override final;
  
      virtual bool canContainRangeEndPoint() const override final { return true; }
      virtual NodeType nodeType() const override;
  
  protected:
      Text(TreeScope& treeScope, const String& data, ConstructionType type)
          : CharacterData(treeScope, data, type)
      {
      }
  
  private:
      virtual String nodeName() const override;
      virtual PassRefPtr<Node> cloneNode(bool deep = true) override final;
  
      bool isTextNode() const = delete; // This will catch anyone doing an unnecessary check.
  
      bool needsWhitespaceRenderer();
  
      virtual PassRefPtr<Text> cloneWithData(const String&);
  
  #ifndef NDEBUG
      virtual void formatForDebugger(char* buffer, unsigned length) const override;
  #endif
  };
  
  DEFINE_NODE_TYPE_CASTS(Text, isTextNode());
  
  } // namespace blink
  
  #endif  // SKY_ENGINE_CORE_DOM_TEXT_H_
  