/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wicketstuff.jeeweb.jsf;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.component.UIComponentBase;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.TagAttribute;
import javax.faces.view.facelets.TagConfig;
import javax.faces.view.facelets.TagHandler;
import org.apache.wicket.Page;
import org.apache.wicket.core.util.lang.WicketObjects;
import org.apache.wicket.protocol.http.RequestUtils;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.request.mapper.parameter.PageParameters;
/**
* Same as JspUrlTagSupport but for JSF
*
* @see org.wicketstuff.jeeweb.jsp.JspUrlTagSupport
*
* @author Tobias Soloschenko
*/
public final class JsfUrlTagHandler extends TagHandler
{
private String page;
private String query;
/**
* Creates the tag by reading the config which contains the page and the query as param
*
* @param config
* the tag config to read the params
*/
public JsfUrlTagHandler(TagConfig config)
{
super(config);
TagAttribute page = getAttribute("page");
if (page != null)
{
this.page = page.getValue();
}
TagAttribute query = getAttribute("query");
if (query != null)
{
this.query = query.getValue();
}
}
/**
* Applies the url of wicket to the tag
*/
@Override
public void apply(FaceletContext context, UIComponent parent) throws IOException
{
PageParameters pageParameters = new PageParameters();
if (query != null)
{
RequestUtils.decodeParameters(query, pageParameters);
}
Class<Page> resolveClass = WicketObjects.resolveClass(page);
RequestCycle requestCycle = RequestCycle.get();
if (requestCycle != null)
{
final CharSequence urlFor = requestCycle.urlFor(resolveClass, pageParameters);
UIComponentBase c = new UIComponentBase()
{
public void encodeEnd(FacesContext ctx) throws IOException
{
ResponseWriter w = ctx.getResponseWriter();
w.write(urlFor.toString());
}
// abstract method in base, must override
public String getFamily()
{
return "wicket.jsf.taglib";
}
};
parent.getChildren().add(c);
}
}
}