/*
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * Licensed 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.
 */

/* $Id$ */

package org.apache.fop.fo.extensions;

import org.apache.fop.apps.FOPException;
import org.apache.fop.fo.FOEventHandler;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;


/**
 * Base class for pdf bookmark extension objects.
 */
public abstract class ExtensionObj extends FObj {

    /**
     * Create a new extension object.
     *
     * @param parent the parent formatting object
     */
    public ExtensionObj(FONode parent) {
        super(parent);
    }

    /**
     * @see org.apache.fop.fo.FONode#processNode
     */
    public void processNode(String elementName, Locator locator, 
                            Attributes attlist, PropertyList pList)
        throws FOPException
    {
        // Empty
    }

    /**
     * Create a default property list for this element. 
     */
    protected PropertyList createPropertyList(PropertyList parent, 
                FOEventHandler foEventHandler) throws FOPException {
        return null;
    }
}