/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.ajax4jsf.taglib.html.facelets;
import java.util.EventListener;
import org.ajax4jsf.component.UIPush;
import com.sun.facelets.FaceletContext;
import com.sun.facelets.tag.MetaRule;
import com.sun.facelets.tag.MetaRuleset;
import com.sun.facelets.tag.Metadata;
import com.sun.facelets.tag.MetadataTarget;
import com.sun.facelets.tag.TagAttribute;
import com.sun.facelets.tag.jsf.ComponentConfig;
import com.sun.facelets.tag.jsf.ComponentHandler;
/**
* @author shura (latest modification by $Author: alexsmirnov $)
* @version $Revision: 7647 $ $Date: 2008-04-08 01:41:37 +0300 $
*
*/
public class AjaxPushHandler extends ComponentHandler {
private static final MetaRule ajaxPushMetaRule = new AjaxPushMetaRule();
/**
* @param config
*/
public AjaxPushHandler(ComponentConfig config) {
super(config);
}
/* (non-Javadoc)
* @see org.ajax4jsf.tag.AjaxComponentHandler#createMetaRuleset(java.lang.Class)
*/
protected MetaRuleset createMetaRuleset(Class type) {
MetaRuleset metaRules = super.createMetaRuleset(type);
metaRules.addRule(ajaxPushMetaRule);
return metaRules;
}
/**
* @author shura (latest modification by $Author: alexsmirnov $)
* @version $Revision: 7647 $ $Date: 2008-04-08 01:41:37 +0300 $
*
*/
static class AjaxPushMetaRule extends MetaRule{
/**
*
*/
public AjaxPushMetaRule() {
super();
}
/* (non-Javadoc)
* @see com.sun.facelets.tag.MetaRule#applyRule(java.lang.String, com.sun.facelets.tag.TagAttribute, com.sun.facelets.tag.MetadataTarget)
*/
public Metadata applyRule(String name, TagAttribute attribute, MetadataTarget meta) {
if (meta.isTargetInstanceOf(UIPush.class)) {
if ("eventProducer".equals(name)) {
return new AjaxPushActionMapper(attribute);
}
}
return null;
}
}
/**
* @author shura (latest modification by $Author: alexsmirnov $)
* @version $Revision: 7647 $ $Date: 2008-04-08 01:41:37 +0300 $
*
*/
static class AjaxPushActionMapper extends Metadata {
private static final Class<?>[] AJAX_PUSH_ACTION_SIG = new Class[] {EventListener.class};
private final TagAttribute _send;
/**
* @param attribute
*/
public AjaxPushActionMapper(TagAttribute attribute) {
_send = attribute;
}
/* (non-Javadoc)
* @see com.sun.facelets.tag.Metadata#applyMetadata(com.sun.facelets.FaceletContext, java.lang.Object)
*/
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIPush) instance).setEventProducer(this._send.getMethodExpression(ctx, null,
AJAX_PUSH_ACTION_SIG));
}
}
}