/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.app.xmlui.wing.element;
import org.dspace.app.xmlui.wing.AttributeMap;
import org.dspace.app.xmlui.wing.WingContext;
import org.dspace.app.xmlui.wing.WingException;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.ext.LexicalHandler;
import org.xml.sax.helpers.NamespaceSupport;
/**
* This is a class representing a trail element. Trail elements carry
* information about the user's current location in the system relative to the
* repository's root page.
*
* @author Scott Phillips
*/
public class Trail extends TextContainer
{
/** The name of the trail element */
public static final String E_TRAIL = "trail";
/** The name of the target attribute */
public static final String A_TARGET = "target";
/** The name of the render attribute */
public static final String A_RENDER = "rend";
/** The trail's target */
private String target;
/** Any special rendering instructions for the trail. */
private String rend;
/**
* Construct a new trail
*
* @param target
* (May be null) The trail's target
* @param rend
* (May be null) Special rendering instructions.
*/
protected Trail(WingContext context, String target, String rend)
throws WingException
{
super(context);
this.target = target;
this.rend = rend;
}
/**
* Translate into SAX events.
*
* @param contentHandler
* (Required) The registered contentHandler where SAX events
* should be routed too.
* @param lexicalHandler
* (Required) The registered lexicalHandler where lexical
* events (such as CDATA, DTD, etc) should be routed too.
* @param namespaces
* (Required) SAX Helper class to keep track of namespaces able
* to determine the correct prefix for a given namespace URI.
*/
public void toSAX(ContentHandler contentHandler, LexicalHandler lexicalHandler,
NamespaceSupport namespaces) throws SAXException
{
AttributeMap attributes = new AttributeMap();
if (this.target != null)
{
attributes.put(A_TARGET, target);
}
if (this.rend != null)
{
attributes.put(A_RENDER, rend);
}
startElement(contentHandler, namespaces, E_TRAIL, attributes);
super.toSAX(contentHandler, lexicalHandler, namespaces);
endElement(contentHandler, namespaces, E_TRAIL);
}
}