WebCore/CharacterData.h

   1 /*
   2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   4  * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public License
  17  * along with this library; see the file COPYING.LIB.  If not, write to
  18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  *
  21  */
  22
  23 #ifndef CharacterData_h
  24 #define CharacterData_h
  25
  26 #include "EventTargetNode.h"
  27
  28 namespace WebCore {
  29
  30 class CharacterData : public EventTargetNode {
  31 public:
  32     CharacterData(Document*, const String& text, bool isText = false);
  33     CharacterData(Document*, bool isText = false);
  34     virtual ~CharacterData();
  35
  36     // DOM methods & attributes for CharacterData
  37
  38     String data() const { return m_data; }
  39     void setData(const String&, ExceptionCode&);
  40     unsigned length() const { return m_data->length(); }
  41     String substringData(unsigned offset, unsigned count, ExceptionCode&);
  42     void appendData(const String&, ExceptionCode&);
  43     void insertData(unsigned offset, const String&, ExceptionCode&);
  44     void deleteData(unsigned offset, unsigned count, ExceptionCode&);
  45     void replaceData(unsigned offset, unsigned count, const String &arg, ExceptionCode&);
  46
  47     bool containsOnlyWhitespace() const;
  48
  49     // DOM methods overridden from parent classes
  50
  51     virtual String nodeValue() const;
  52     virtual void setNodeValue(const String&, ExceptionCode&);
  53
  54     // Other methods (not part of DOM)
  55
  56     virtual bool isCharacterDataNode() const { return true; }
  57     virtual int maxCharacterOffset() const;
  58     StringImpl* string() { return m_data.get(); }
  59
  60     virtual bool offsetInCharacters() const;
  61     virtual bool rendererIsNeeded(RenderStyle*);
  62
  63 protected:
  64     RefPtr<StringImpl> m_data;
  65
  66     void dispatchModifiedEvent(StringImpl* oldValue);
  67
  68 private:
  69     void checkCharDataOperation(unsigned offset, ExceptionCode&);
  70 };
  71
  72 } // namespace WebCore
  73
  74 #endif // CharacterData_h
  75