diff -r 000000000000 -r 4f2f89ce4247 WebCore/dom/CharacterData.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/CharacterData.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,77 @@
+/*
+ * 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 "Node.h"
+
+namespace WebCore {
+
+class CharacterData : public Node {
+public:
+    String data() const { return m_data; }
+    void setData(const String&, ExceptionCode&);
+    unsigned length() const { return m_data->length(); }
+    String substringData(unsigned offset, unsigned count, ExceptionCode&);
+    void appendData(const String&, ExceptionCode&);
+    void insertData(unsigned offset, const String&, ExceptionCode&);
+    void deleteData(unsigned offset, unsigned count, ExceptionCode&);
+    void replaceData(unsigned offset, unsigned count, const String&, ExceptionCode&);
+
+    bool containsOnlyWhitespace() const;
+
+    StringImpl* dataImpl() { return m_data.get(); }
+
+    // Like appendData, but optimized for the parser (e.g., no mutation events).
+    void parserAppendData(const String&);
+
+protected:
+    CharacterData(Document* document, const String& text, ConstructionType type)
+        : Node(document, type)
+        , m_data(text.impl() ? text.impl() : StringImpl::empty())
+    {
+        ASSERT(type == CreateComment || type == CreateText);
+    }
+
+    virtual bool rendererIsNeeded(RenderStyle*);
+
+    void setDataImpl(PassRefPtr<StringImpl> impl) { m_data = impl; }
+    void dispatchModifiedEvent(StringImpl* oldValue);
+
+private:
+    virtual String nodeValue() const;
+    virtual void setNodeValue(const String&, ExceptionCode&);
+    virtual bool isCharacterDataNode() const { return true; }
+    virtual int maxCharacterOffset() const;
+    virtual bool offsetInCharacters() const;
+
+    void checkCharDataOperation(unsigned offset, ExceptionCode&);
+    PassRefPtr<StringImpl> appendDataCommon(const String&);
+
+    RefPtr<StringImpl> m_data;
+};
+
+} // namespace WebCore
+
+#endif // CharacterData_h
+