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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 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 CharacterData_h
#define CharacterData_h
#include "core/CoreExport.h"
#include "core/dom/Node.h"
#include "wtf/text/WTFString.h"
namespace blink {
class ExceptionState;
class CORE_EXPORT CharacterData : public Node {
DEFINE_WRAPPERTYPEINFO();
public:
void atomize();
const String& data() const { return m_data; }
void setData(const String&);
unsigned length() const { return m_data.length(); }
String substringData(unsigned offset, unsigned count, ExceptionState&);
void appendData(const String&);
void replaceData(unsigned offset,
unsigned count,
const String&,
ExceptionState&);
void insertData(unsigned offset, const String&, ExceptionState&);
void deleteData(unsigned offset, unsigned count, ExceptionState&);
bool containsOnlyWhitespace() const;
StringImpl* dataImpl() { return m_data.impl(); }
void parserAppendData(const String&);
protected:
CharacterData(TreeScope& treeScope, const String& text, ConstructionType type)
: Node(&treeScope, type), m_data(!text.isNull() ? text : emptyString()) {
DCHECK(type == CreateOther || type == CreateText ||
type == CreateEditingText);
}
void setDataWithoutUpdate(const String& data) {
DCHECK(!data.isNull());
m_data = data;
}
enum UpdateSource {
UpdateFromParser,
UpdateFromNonParser,
};
void didModifyData(const String& oldValue, UpdateSource);
String m_data;
private:
String nodeValue() const final;
void setNodeValue(const String&) final;
bool isCharacterDataNode() const final { return true; }
int maxCharacterOffset() const final;
void setDataAndUpdate(const String&,
unsigned offsetOfReplacedData,
unsigned oldLength,
unsigned newLength,
UpdateSource = UpdateFromNonParser);
bool isContainerNode() const =
delete; // This will catch anyone doing an unnecessary check.
bool isElementNode() const =
delete; // This will catch anyone doing an unnecessary check.
};
DEFINE_NODE_TYPE_CASTS(CharacterData, isCharacterDataNode());
} // namespace blink
#endif // CharacterData_h
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