org.apache.myfaces.view.facelets.tag.jsf.core.FacetHandler Maven / Gradle / Ivy
/*
* 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.apache.myfaces.view.facelets.tag.jsf.core;
import java.io.IOException;
import javax.el.ELException;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.FaceletException;
import javax.faces.view.facelets.TagAttribute;
import javax.faces.view.facelets.TagConfig;
import javax.faces.view.facelets.TagException;
import javax.faces.view.facelets.TagHandler;
import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
/**
* Register a named facet on the UIComponent associated with the closest parent UIComponent custom action. See tag documentation.
*
* @author Jacob Hookom
* @version $Id: FacetHandler.java,v 1.8 2008/07/13 19:01:44 rlubke Exp $
*/
@JSFFaceletTag(
name = "f:facet",
bodyContent = "JSP",
tagClass="javax.faces.webapp.FacetTag")
public final class FacetHandler extends TagHandler
implements javax.faces.view.facelets.FacetHandler
{
public static final String KEY = "facelets.FACET_NAME";
protected final TagAttribute name;
public FacetHandler(TagConfig config)
{
super(config);
this.name = this.getRequiredAttribute("name");
}
/*
* (non-Javadoc)
*
* @see javax.faces.view.facelets.FaceletHandler#apply(javax.faces.view.facelets.FaceletContext, javax.faces.component.UIComponent)
*/
public void apply(FaceletContext ctx, UIComponent parent) throws IOException, FacesException, FaceletException,
ELException
{
if (parent == null)
{
throw new TagException(this.tag, "Parent UIComponent was null");
}
parent.getAttributes().put(KEY, this.name.getValue(ctx));
try
{
this.nextHandler.apply(ctx, parent);
}
finally
{
parent.getAttributes().remove(KEY);
}
}
public String getFacetName(FaceletContext ctx)
{
return this.name.getValue(ctx);
}
}