DOMAttrMapImpl.cpp

/*
 * The Apache Software License, Version 1.1
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 * 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) 2001, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
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/*
 * $Id$
 */

#include "DOMAttrMapImpl.hpp"
#include "DOMAttrImpl.hpp"
#include "DOMNamedNodeMapImpl.hpp"
#include "DOMNodeImpl.hpp"
#include "DOMElementImpl.hpp"
#include <xercesc/dom/DOMAttr.hpp>
#include "DOMCasts.hpp"
#include "DOMDocumentImpl.hpp"

DOMAttrMapImpl::DOMAttrMapImpl(DOMNode *ownerNod)
	: DOMNamedNodeMapImpl(ownerNod)
{
	hasDefaults(false);
}

DOMAttrMapImpl::DOMAttrMapImpl(DOMNode *ownerNod, const DOMNamedNodeMapImpl *defaults)
	: DOMNamedNodeMapImpl(ownerNod)
{
	hasDefaults(false);
	if (defaults != 0)
	{
		if (defaults->getLength() > 0)
		{
			hasDefaults(true);
			cloneContent(defaults);
		}
	}
}

DOMAttrMapImpl::~DOMAttrMapImpl()
{
}

DOMAttrMapImpl *DOMAttrMapImpl::cloneAttrMap(DOMNode *ownerNode_p)
{
	DOMAttrMapImpl *newmap = new (castToNodeImpl(ownerNode_p)->getOwnerDocument()) DOMAttrMapImpl(ownerNode_p);
	newmap->cloneContent(this);
	// newmap->attrDefaults = this->attrDefaults;  // revisit
	return newmap;
}

DOMNode *DOMAttrMapImpl::removeNamedItem(const XMLCh *name)
{
    DOMNode* removed = DOMNamedNodeMapImpl::removeNamedItem(name);

    // Replace it if it had a default value
    // (DOM spec level 1 - Element Interface)
    if (hasDefaults() && (removed != 0))
    {
        DOMAttrMapImpl* defAttrs = ((DOMElementImpl*)fOwnerNode)->getDefaultAttributes();
        DOMAttr* attr = (DOMAttr*)(defAttrs->getNamedItem(name));
        if (attr != 0)
        {
            DOMAttr* newAttr = (DOMAttr*)attr->cloneNode(true);
            setNamedItem(newAttr);
        }
    }

    return removed;
}

DOMNode *DOMAttrMapImpl::removeNamedItemNS(const XMLCh *namespaceURI, const XMLCh *localName)
{
    DOMNode* removed = DOMNamedNodeMapImpl::removeNamedItemNS(namespaceURI, localName);

    // Replace it if it had a default value
    // (DOM spec level 2 - Element Interface)

    if (hasDefaults() && (removed != 0))
    {
        DOMAttrMapImpl* defAttrs = ((DOMElementImpl*)fOwnerNode)->getDefaultAttributes();
        DOMAttr* attr = (DOMAttr*)(defAttrs->getNamedItemNS(namespaceURI, localName));
        if (attr != 0)
        {
            DOMAttr* newAttr = (DOMAttr*)attr->cloneNode(true);
            setNamedItemNS(newAttr);
        }
    }

    return removed;
}

/**
 * Get this AttributeMap in sync with the given "defaults" map.
 * @param defaults The default attributes map to sync with.
 */
void DOMAttrMapImpl::reconcileDefaultAttributes(const DOMAttrMapImpl* defaults) {

    // remove any existing default
    XMLSize_t nsize = getLength();
    for (XMLSSize_t i = nsize - 1; i >= 0; i--) {
        DOMAttr* attr = (DOMAttr*)item(i);
        if (!attr->getSpecified()) {
            removeNamedItemAt(i);
        }
    }

    hasDefaults(false);

    // add the new defaults
    if (defaults) {
        hasDefaults(true);

        if (nsize == 0) {
            cloneContent(defaults);
        }
        else {
            XMLSize_t dsize = defaults->getLength();
            for (XMLSize_t n = 0; n < dsize; n++) {
                DOMAttr* attr = (DOMAttr*)defaults->item(n);

                DOMAttr* newAttr = (DOMAttr*)attr->cloneNode(true);
                setNamedItemNS(newAttr);
                DOMAttrImpl* newAttrImpl = (DOMAttrImpl*) newAttr;
                newAttrImpl->setSpecified(false);
            }
        }
    }
} // reconcileDefaults()


/**
 * Move specified attributes from the given map to this one
 */
void DOMAttrMapImpl::moveSpecifiedAttributes(DOMAttrMapImpl* srcmap) {
    XMLSize_t nsize = srcmap->getLength();

    for (XMLSSize_t i = nsize - 1; i >= 0; i--) {
        DOMAttr* attr = (DOMAttr*)srcmap->item(i);
        if (attr->getSpecified()) {
            srcmap->removeNamedItemAt(i);
        }

        if (attr->getLocalName())
            setNamedItemNS(attr);
        else
            setNamedItem(attr);
    }
} // moveSpecifiedAttributes(AttributeMap):void