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
30 class CharacterData : public Node {
32 String data() const { return m_data; }
33 void setData(const String&, ExceptionCode&);
34 unsigned length() const { return m_data->length(); }
35 String substringData(unsigned offset, unsigned count, ExceptionCode&);
36 void appendData(const String&, ExceptionCode&);
37 void insertData(unsigned offset, const String&, ExceptionCode&);
38 void deleteData(unsigned offset, unsigned count, ExceptionCode&);
39 void replaceData(unsigned offset, unsigned count, const String&, ExceptionCode&);
41 bool containsOnlyWhitespace() const;
43 StringImpl* dataImpl() { return m_data.get(); }
45 // Like appendData, but optimized for the parser (e.g., no mutation events).
46 // Returns how much could be added before length limit was met.
47 unsigned parserAppendData(const UChar*, unsigned dataLength, unsigned lengthLimit);
50 CharacterData(Document* document, const String& text, ConstructionType type)
51 : Node(document, type)
52 , m_data(text.impl() ? text.impl() : StringImpl::empty())
54 ASSERT(type == CreateComment || type == CreateText);
57 virtual bool rendererIsNeeded(const NodeRenderingContext&);
59 void setDataImpl(PassRefPtr<StringImpl> impl) { m_data = impl; }
60 void dispatchModifiedEvent(StringImpl* oldValue);
63 virtual String nodeValue() const;
64 virtual void setNodeValue(const String&, ExceptionCode&);
65 virtual bool isCharacterDataNode() const { return true; }
66 virtual int maxCharacterOffset() const;
67 virtual bool offsetInCharacters() const;
68 void setDataAndUpdate(PassRefPtr<StringImpl>, unsigned offsetOfReplacedData, unsigned oldLength, unsigned newLength);
69 void updateRenderer(unsigned offsetOfReplacedData, unsigned lengthOfReplacedData);
70 void checkCharDataOperation(unsigned offset, ExceptionCode&);
72 RefPtr<StringImpl> m_data;
75 } // namespace WebCore
77 #endif // CharacterData_h