/**
* 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.richfaces.skin;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.VariableResolver;
import org.richfaces.VersionBean;
import org.richfaces.skin.SkinFactory;
/**
* Resolve current skin as EL Variable. e.g. #{chameleonSkin['color'] } #{chameleonSkin.color}
* must be evaluated as Skin.getProperty(context,"color");
* @author asmirnov@exadel.com (latest modification by $Author: alexsmirnov $)
* @version $Revision: 1.1.2.1 $ $Date: 2007/01/09 18:59:41 $
*
*/
public class SkinVariableResolver extends VariableResolver {
public static final String SKIN_VARIABLE_NAME = "vcpSkin";
public static final String CHAMELEON_VARIABLE_NAME = "vcp";
private VariableResolver parent = null;
public SkinVariableResolver(VariableResolver parent){
this.parent = parent;
}
/* (non-Javadoc)
* @see javax.faces.el.VariableResolver#resolveVariable(javax.faces.context.FacesContext, java.lang.String)
*/
public Object resolveVariable(FacesContext context, String name)
throws EvaluationException {
// TODO: Why do we need this?
if(SKIN_VARIABLE_NAME.equals(name)){
return SkinFactory.getInstance().getSkin(context);
} else if(CHAMELEON_VARIABLE_NAME.equals(name)){
return new VersionBean();
}
if (parent!=null) {
Object ret = null;
ret = parent.resolveVariable(context,name);
return ret;
} else {
return null;
}
}
}