org.apache.myfaces.custom.tabbedpane.TabChangeListenerTagHandler 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.custom.tabbedpane;
import java.io.IOException;
import javax.el.ELException;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import org.apache.myfaces.shared_tomahawk.util.ClassUtils;
import com.sun.facelets.FaceletContext;
import com.sun.facelets.FaceletException;
import com.sun.facelets.tag.TagAttribute;
import com.sun.facelets.tag.TagConfig;
import com.sun.facelets.tag.TagHandler;
/**
*
* @since 1.1.7
*
*/
public class TabChangeListenerTagHandler extends TagHandler
{
private final TagAttribute typeAttr;
public TabChangeListenerTagHandler(TagConfig config)
{
super(config);
typeAttr = getRequiredAttribute("type");
}
public void apply(FaceletContext faceletContext, UIComponent parent)
throws IOException, FacesException, FaceletException, ELException
{
if (parent.getParent() == null)
{
if (parent instanceof HtmlPanelTabbedPane)
{
String className;
if (!typeAttr.isLiteral())
{
className = typeAttr.getValue();
}
else
{
className = typeAttr.getValue(faceletContext);
}
TabChangeListener listener = (TabChangeListener) ClassUtils
.newInstance(className);
((HtmlPanelTabbedPane) parent).addTabChangeListener(listener);
}
else
{
throw new FacesException(
"Component is not HtmlPanelTabbedPane children");
}
}
}
}