001// Copyright 2008-2013 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
015package org.apache.tapestry5;
016
017import org.apache.tapestry5.dom.Element;
018
019
020/**
021 * An interface that allows objects to be alerted after an element is started, and after an element is ended.
022 */
023public 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}