src/dom/DOM_NamedNodeMap.cpp

/*
 * The Apache Software License, Version 1.1
 * 
 * Copyright (c) 1999-2000 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 1.8  2000/06/07 22:49:40  andyh
 * Memory usage reduction:  DOM NamedNodeMaps for attributes are allocated
 * only for elements that actually have attributes.  By Joe Polastre.
 *
 * Revision 1.7  2000/03/11 03:19:12  chchou
 * Fix bug # 19, add const keyword to API
 *
 * Revision 1.6  2000/03/02 19:53:56  roddey
 * This checkin includes many changes done while waiting for the
 * 1.1.0 code to be finished. I can't list them all here, but a list is
 * available elsewhere.
 *
 * Revision 1.5  2000/02/06 07:47:30  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.4  2000/02/04 01:49:28  aruna1
 * TreeWalker and NodeIterator changes
 *
 * Revision 1.3  2000/01/22 01:38:29  andyh
 * Remove compiler warnings in DOM impl classes
 *
 * Revision 1.2  2000/01/05 01:16:07  andyh
 * DOM Level 2 core, namespace support added.
 *
 * Revision 1.1.1.1  1999/11/09 01:08:59  twl
 * Initial checkin
 *
 * Revision 1.3  1999/11/08 20:44:18  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */

#include "DOM_Node.hpp"
#include "DOM_NamedNodeMap.hpp"
#include "NamedNodeMapImpl.hpp"
#include "ElementImpl.hpp"


const unsigned short DOM_NamedNodeMap::NNM_ELEMENT  = 0;
const unsigned short DOM_NamedNodeMap::NNM_OTHER    = 1;


DOM_NamedNodeMap::DOM_NamedNodeMap()
{
    fImpl = 0;
	flagElem = NNM_OTHER;
};


DOM_NamedNodeMap::DOM_NamedNodeMap(const DOM_NamedNodeMap & other)
{
    this->fImpl = other.fImpl;
	this->flagElem = other.flagElem;
	(other.flagElem == NNM_ELEMENT) ? NodeImpl::addRef((NodeImpl *)fImpl) :	
	                                  NamedNodeMapImpl::addRef((NamedNodeMapImpl *)fImpl);
};


DOM_NamedNodeMap::DOM_NamedNodeMap(NamedNodeMapImpl *impl)
{
	fImpl = impl;
	flagElem = NNM_OTHER;
	if (impl != null)
		NamedNodeMapImpl::addRef((NamedNodeMapImpl *)fImpl);
};

DOM_NamedNodeMap::DOM_NamedNodeMap(NodeImpl *impl)
{
	fImpl = impl;
	flagElem = NNM_ELEMENT;
	NodeImpl::addRef((NodeImpl *)fImpl);
}


DOM_NamedNodeMap::~DOM_NamedNodeMap() 
{
	(flagElem == NNM_OTHER) ? NamedNodeMapImpl::removeRef((NamedNodeMapImpl *)fImpl) : 
	                          NodeImpl::removeRef((NodeImpl *)fImpl);
};

bool DOM_NamedNodeMap::operator == (const DOM_NamedNodeMap &other) const
{
    return this->fImpl == other.fImpl;
};


bool DOM_NamedNodeMap::operator != (const DOM_NamedNodeMap &other) const
{
    return this->fImpl != other.fImpl;
};


bool DOM_NamedNodeMap::operator == (const DOM_NullPtr *p) const
{
    return this->fImpl == 0;
};


bool DOM_NamedNodeMap::operator != (const DOM_NullPtr *p) const
{
    return this->fImpl != 0;
};


DOM_NamedNodeMap & DOM_NamedNodeMap::operator = (const DOM_NamedNodeMap & other)
{
    if (this->fImpl != other.fImpl) 
    {
		// update reference counts and change pointers
        (flagElem == NNM_OTHER) ? NamedNodeMapImpl::removeRef((NamedNodeMapImpl *)fImpl) : NodeImpl::removeRef((NodeImpl *)fImpl);

        this->fImpl = other.fImpl;
		this->flagElem = other.flagElem;

        (flagElem == NNM_OTHER) ? NamedNodeMapImpl::addRef((NamedNodeMapImpl *)fImpl) : NodeImpl::addRef((NodeImpl *)fImpl);
    }
    return *this;
};


DOM_NamedNodeMap & DOM_NamedNodeMap::operator = (const DOM_NullPtr *other)
{
    
    (flagElem == NNM_OTHER) ? NamedNodeMapImpl::removeRef((NamedNodeMapImpl *)fImpl) : NodeImpl::removeRef((NodeImpl *)fImpl);
    this->fImpl = 0;
	this->flagElem = NNM_OTHER;
    return *this;
};


DOM_Node DOM_NamedNodeMap::getNamedItem(const DOMString &name) const
{
	return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->getNamedItem(name)) : 
	                                 DOM_Node(((ElementImpl *)fImpl)->NNM_getNamedItem(name));
};


DOM_Node DOM_NamedNodeMap::setNamedItem(DOM_Node arg)
{
	return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->setNamedItem(arg.fImpl)) : 
	                                 DOM_Node(((ElementImpl *)fImpl)->NNM_setNamedItem(arg.fImpl));
};


DOM_Node DOM_NamedNodeMap::removeNamedItem(const DOMString &name)
{
	return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->removeNamedItem(name)) : 
	                                 DOM_Node(((ElementImpl *)fImpl)->NNM_removeNamedItem(name));
};


DOM_Node DOM_NamedNodeMap::item(unsigned int index) const
{
	return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->item(index)) : 
	                                 DOM_Node(((ElementImpl *)fImpl)->NNM_item(index));
};


unsigned int DOM_NamedNodeMap::getLength() const
{
	return (flagElem == NNM_OTHER) ? ((NamedNodeMapImpl *)fImpl)->getLength() : 
	                                 ((ElementImpl *)fImpl)->NNM_getLength();
};


//Introduced in DOM Level 2

DOM_Node DOM_NamedNodeMap::getNamedItemNS(const DOMString &namespaceURI,
	const DOMString &localName)
{
	return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->getNamedItemNS(namespaceURI, localName)) :
									 DOM_Node(((ElementImpl *)fImpl)->NNM_getNamedItemNS(namespaceURI, localName));
}

DOM_Node DOM_NamedNodeMap::setNamedItemNS(DOM_Node arg)
{
    return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->setNamedItemNS(arg.fImpl)) :
	                                 DOM_Node(((ElementImpl *)fImpl)->NNM_setNamedItemNS(arg.fImpl));
}

DOM_Node DOM_NamedNodeMap::removeNamedItemNS(const DOMString &namespaceURI,
	const DOMString &localName)
{
	return (flagElem == NNM_OTHER) ? DOM_Node(((NamedNodeMapImpl *)fImpl)->removeNamedItemNS(namespaceURI, localName)) :
                                     DOM_Node(((ElementImpl *)fImpl)->NNM_removeNamedItemNS(namespaceURI, localName));
}