    001    // Copyright 2008 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    //     http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5;
    016
    017    import org.apache.tapestry5.dom.Element;
    018
    019
    020    /**
    021     * An interface that allows objects to be alerted when after an element is started, and after an element is ended.
    022     */
    023    public interface MarkupWriterListener
    024    {
    025        /**
    026         * Invoked just after an element and its initial set of attributes has been written.
    027         *
    028         * @param element element just created and populated with attributes
    029         * @see org.apache.tapestry5.MarkupWriter#element(String, Object[])
    030         * @see org.apache.tapestry5.MarkupWriter#elementNS(String, String)
    031         */
    032        void elementDidStart(Element element);
    033
    034        /**
    035         * Invoked just after an element has ended.
    036         *
    037         * @param element just ended
    038         * @see org.apache.tapestry5.MarkupWriter#end()
    039         */
    040        void elementDidEnd(Element element);
    041    }