/*
* 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.tobago.facelets;
import com.sun.facelets.FaceletContext;
import com.sun.facelets.tag.TagAttribute;
import com.sun.facelets.tag.TagConfig;
import com.sun.facelets.tag.TagException;
import com.sun.facelets.tag.TagHandler;
import com.sun.facelets.tag.jsf.ComponentSupport;
import org.apache.myfaces.tobago.component.Attributes;
import org.apache.myfaces.tobago.util.ComponentUtils;
import javax.el.ELException;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
/**
* PRELIMINARY - SUBJECT TO CHANGE
*/
public final class DataAttributeHandler extends TagHandler {
private final TagAttribute name;
private final TagAttribute value;
public DataAttributeHandler(TagConfig config) {
super(config);
this.name = getRequiredAttribute(Attributes.NAME);
this.value = getRequiredAttribute(Attributes.VALUE);
}
public void apply(FaceletContext faceletContext, UIComponent parent)
throws FacesException, ELException {
if (parent == null) {
throw new TagException(tag, "Parent UIComponent was null");
}
if (ComponentSupport.isNew(parent)) {
Object attributeName = name.isLiteral()
? (Object) name.getValue(faceletContext)
: name.getValueExpression(faceletContext, Object.class);
Object attributeValue = value.isLiteral()
? (Object) value.getValue(faceletContext)
: value.getValueExpression(faceletContext, Object.class);
ComponentUtils.putDataAttribute(parent, attributeName, attributeValue);
}
}
}