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, 2009 Apple Inc. All rights reserved.
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.
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.
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.
23 #ifndef CharacterData_h
24 #define CharacterData_h
27 #include <wtf/text/WTFString.h>
31 class CharacterData : public Node {
33 String data() const { return m_data; }
34 void setData(const String&, ExceptionCode&);
35 unsigned length() const { return m_data.length(); }
36 String substringData(unsigned offset, unsigned count, ExceptionCode&);
37 void appendData(const String&, ExceptionCode&);
38 void insertData(unsigned offset, const String&, ExceptionCode&);
39 void deleteData(unsigned offset, unsigned count, ExceptionCode&);
40 void replaceData(unsigned offset, unsigned count, const String&, ExceptionCode&);
42 bool containsOnlyWhitespace() const;
44 StringImpl* dataImpl() { return m_data.impl(); }
46 // Like appendData, but optimized for the parser (e.g., no mutation events).
47 // Returns how much could be added before length limit was met.
48 unsigned parserAppendData(const UChar*, unsigned dataLength, unsigned lengthLimit);
51 CharacterData(Document* document, const String& text, ConstructionType type)
52 : Node(document, type)
53 , m_data(!text.isNull() ? text : emptyString())
55 ASSERT(type == CreateComment || type == CreateText);
58 virtual bool rendererIsNeeded(const NodeRenderingContext&);
60 void setDataWithoutUpdate(const String& data)
62 ASSERT(!data.isNull());
65 void dispatchModifiedEvent(const String& oldValue);
68 virtual String nodeValue() const;
69 virtual void setNodeValue(const String&, ExceptionCode&);
70 virtual bool isCharacterDataNode() const { return true; }
71 virtual int maxCharacterOffset() const;
72 virtual bool offsetInCharacters() const;
73 void setDataAndUpdate(const String&, unsigned offsetOfReplacedData, unsigned oldLength, unsigned newLength);
74 void updateRenderer(unsigned offsetOfReplacedData, unsigned lengthOfReplacedData);
75 void checkCharDataOperation(unsigned offset, ExceptionCode&);
80 } // namespace WebCore
82 #endif // CharacterData_h