/**
* License Agreement.
*
* JBoss RichFaces - Ajax4jsf Component Library
*
* 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.richfaces.component;
import javax.faces.component.UIComponent;
import javax.faces.el.MethodBinding;
import org.richfaces.event.NodeExpandedEvent;
import org.richfaces.event.NodeSelectedEvent;
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 Nick Belaevski - nbelaevski@exadel.com
* created 28.11.2006
*
*/
public class TreeListenersTagHandler extends ComponentHandler {
private final static String CHANGE_EXPAND_LISTENER = "changeExpandListener";
private final static String NODE_SELECT_LISTENER = "nodeSelectListener";
public TreeListenersTagHandler(ComponentConfig config) {
super(config);
}
protected MetaRuleset createMetaRuleset(Class clazz) {
MetaRuleset ruleset = super.createMetaRuleset(clazz);
ruleset.addRule(new MetaRule() {
public Metadata applyRule(String name, final TagAttribute attribute, MetadataTarget metadataTarget) {
if (CHANGE_EXPAND_LISTENER.equals(name)) {
return new Metadata() {
public void applyMetadata(FaceletContext context, Object object) {
MethodBinding binding = context.getFacesContext().getApplication().createMethodBinding(attribute.getValue(), new Class[] {NodeExpandedEvent.class});
((UIComponent) object).getAttributes().put(CHANGE_EXPAND_LISTENER, binding);
}
};
} else if (NODE_SELECT_LISTENER.equals(name)) {
return new Metadata() {
public void applyMetadata(FaceletContext context, Object object) {
MethodBinding binding = context.getFacesContext().getApplication().createMethodBinding(attribute.getValue(), new Class[] {NodeSelectedEvent.class});
((UIComponent) object).getAttributes().put(NODE_SELECT_LISTENER, binding);
}
};
}
return null;
}
});
return ruleset;
}
}