/*
 * The Apache Software License, Version 1.1
 * 
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:  
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 * 
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written 
 *    permission, please contact apache\@apache.org.
 * 
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation, and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/**
 * $Log$
 * Revision 1.1  1999/11/09 01:08:41  twl
 * Initial revision
 *
 * Revision 1.2  1999/11/08 20:44:11  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */

#include "CharacterDataImpl.hpp"
#include "DOM_DOMException.hpp"


CharacterDataImpl::CharacterDataImpl(DocumentImpl *ownerDoc, const DOMString &nam,
                                     short nTyp, const DOMString &data) :
NodeImpl(ownerDoc, nam, nTyp, true, data)
{
};

CharacterDataImpl::CharacterDataImpl(const CharacterDataImpl &other, bool deep)
: NodeImpl(other, deep)
{
};


CharacterDataImpl::~CharacterDataImpl() {
};


void CharacterDataImpl::appendData(const DOMString &data)
{
    if(readOnly)
        throw new DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    
    value.appendData(data);
};


NodeImpl *CharacterDataImpl::cloneNode(bool deep)
{
    return new CharacterDataImpl(*this, deep);
};


void CharacterDataImpl::deleteData(int offset, int count)
{
    if (readOnly)
        throw new DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    if (count < 0)
        throw new DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, null);
    
    
    //int tailLength = Math.max(value.length() - count - offset, 0);
    //try
    //{
    //      value = value.substring(0, offset) + (tailLength > 0 ? value.substring(offset + count, offset + count + tailLength) : "");
    //}
    //catch (StringIndexOutOfBoundsException e)
    //{
    //      throw new DOM_DOMException(DOMException.INDEX_SIZE_ERR, null);
    
    int len = value.length();
    if (offset < 0 || offset >= len)
        throw new DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, null);
    
    value.deleteData(offset, count);
};


DOMString CharacterDataImpl::getData()
{
    return value.clone();        // clone here so that subsequent changes to
    //  our value will not change the returned string.
};


//
//  getCharDataLength - return the length of the character data string.
//                      Note:  in the public DOM API, the name of this method
//                      is getLength(), but has been renamed here to avoid a
//                      conflict with NodeListImpl::getLength().  The conflict
//                      occurs because NodeListImpl is a base class of us.
//                      DOM_CharData::getLength() delegates to this method, so
//                      all of the names are correct from an external API
//                      point of view.
//
int CharacterDataImpl::getCharDataLength()
{
    return value.length();
};


void CharacterDataImpl::insertData(int offset, const DOMString &data) 
{
    
    if (readOnly)
        throw new DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    
    if (offset<0 || offset>value.length())
        throw new DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR, null);
    
    value.insertData(offset, data);
}


void CharacterDataImpl::replaceData(int offset, int count, const DOMString &data)
{
    if (readOnly)
        throw new DOM_DOMException(
        DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    deleteData(offset, count);
    insertData(offset, data);
};


void CharacterDataImpl::setData(const DOMString &arg)
{
    if (readOnly)
        throw new DOM_DOMException(DOM_DOMException::NO_MODIFICATION_ALLOWED_ERR, null);
    value = arg.clone();
};


DOMString CharacterDataImpl::substringData(int offset, int count)
{
    
    if(count < 0 || offset < 0 || offset > value.length()-1)
        throw new DOM_DOMException(DOM_DOMException::INDEX_SIZE_ERR,null);
    
    return value.substringData(offset, count);
};