1 /*

     2  * This file is part of the DOM implementation for KDE.

     3  *

     4  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

     5  *           (C) 1999 Antti Koivisto (koivisto@kde.org)

     6  * Copyright (C) 2003 Apple Computer, Inc.

     7  *

     8  * This library is free software; you can redistribute it and/or

     9  * modify it under the terms of the GNU Library General Public

    10  * License as published by the Free Software Foundation; either

    11  * version 2 of the License, or (at your option) any later version.

    12  *

    13  * This library is distributed in the hope that it will be useful,

    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    16  * Library General Public License for more details.

    17  *

    18  * You should have received a copy of the GNU Library General Public License

    19  * along with this library; see the file COPYING.LIB.  If not, write to

    20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    21  * Boston, MA 02110-1301, USA.

    22  *

    23  */

    24 

    25 #ifndef CharacterData_h

    26 #define CharacterData_h

    27 

    28 #include "EventTargetNode.h"

    29 

    30 namespace WebCore {

    31 

    32 class CharacterData : public EventTargetNode {

    33 public:

    34     CharacterData(Document*, const String& text);

    35     CharacterData(Document*);

    36     virtual ~CharacterData();

    37 

    38     // DOM methods & attributes for CharacterData

    39 

    40     String data() const { return str; }

    41     void setData(const String&, ExceptionCode&);

    42     unsigned length() const { return str->length(); }

    43     String substringData(unsigned offset, unsigned count, ExceptionCode&);

    44     void appendData(const String&, ExceptionCode&);

    45     void insertData(unsigned offset, const String&, ExceptionCode&);

    46     void deleteData(unsigned offset, unsigned count, ExceptionCode&);

    47     void replaceData(unsigned offset, unsigned count, const String &arg, ExceptionCode&);

    48 

    49     bool containsOnlyWhitespace() const;

    50     bool containsOnlyWhitespace(unsigned from, unsigned len) const;

    51     

    52     // DOM methods overridden from  parent classes

    53 

    54     virtual String nodeValue() const;

    55     virtual void setNodeValue(const String&, ExceptionCode&);

    56     virtual bool isCharacterDataNode() const { return true; }

    57     

    58     // Other methods (not part of DOM)

    59 

    60     StringImpl* string() { return str; }

    61     virtual void checkCharDataOperation(unsigned offset, ExceptionCode&);

    62 

    63     virtual int maxOffset() const;

    64     virtual int caretMinOffset() const;

    65     virtual int caretMaxOffset() const;

    66     virtual unsigned caretMaxRenderedOffset() const;

    67     virtual bool offsetInCharacters() const;

    68     virtual bool rendererIsNeeded(RenderStyle*);

    69     

    70 #ifndef NDEBUG

    71     virtual void dump(TextStream*, DeprecatedString ind = "") const;

    72 #endif

    73 

    74 protected:

    75     // note: since DOMStrings are shared, str should always be copied when making

    76     // a change or returning a string

    77     StringImpl* str;

    78 

    79     void dispatchModifiedEvent(StringImpl* prevValue);

    80 };

    81 

    82 } // namespace WebCore

    83 

    84 #endif // CharacterData_h

    85