/*

  * $Source: /usr/cvsroot/Bibliomania/src/main/java/org/paneris/bibliomania/util/FictionalNotifyingDocumentParser.java,v $

  * $Revision: 1.3 $

  *

  * Copyright (C) 2000 William Chesters

  *

  * Part of Melati (http://melati.org), a framework for the rapid

  * development of clean, maintainable web applications.

  *

  * Melati is free software; Permission is granted to copy, distribute

  * and/or modify this software under the terms either:

  *

  * a) the GNU General Public License as published by the Free Software

  *    Foundation; either version 2 of the License, or (at your option)

  *    any later version,

  *

  *    or

  *

  * b) any version of the Melati Software License, as published

  *    at http://melati.org

  *

  * You should have received a copy of the GNU General Public License and

  * the Melati Software License along with this program;

  * if not, write to the Free Software Foundation, Inc.,

  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the

  * GNU General Public License and visit http://melati.org to obtain the

  * Melati Software License.

  *

  * Feel free to contact the Developers of Melati (http://melati.org),

  * if you would like to work out a different arrangement than the options

  * outlined here.  It is our intention to allow Melati to be used by as

  * wide an audience as possible.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * Contact details for copyright holder:

  *

  *     William Chesters <williamc At paneris.org>

  *     http://paneris.org/~williamc

  *     Obrechtstraat 114, 2517VX Den Haag, The Netherlands

  */

 package org.paneris.bibliomania.util;

 import java.io.Reader;

 import java.io.IOException;

 import javax.swing.text.ChangedCharSetException;

 import javax.swing.text.html.parser.DocumentParser;

 import javax.swing.text.html.parser.TagElement;

 import javax.swing.text.html.parser.DTD;

 /**

  * An extended <code>DocumentParser</code>.

  */

 public class FictionalNotifyingDocumentParser extends DocumentParser {

   protected FictionalNotifiableParserCallback callback = null;

   /**

    * Constructor.

    * @param dtd the Document Type Definition

    */

   public FictionalNotifyingDocumentParser(DTD dtd) {

     super(dtd);

   }

   /**

    * Parse the document.

    * @param in the Reader to read document from 

    * @param callbackP the callaback to call

    * @param ignoreCharSet whether to ignore the character set declaration

    */

   public void parse(Reader in,

                     FictionalNotifiableParserCallback callbackP,

                     boolean ignoreCharSet) throws IOException {

     this.callback = callbackP;

     try {

       super.parse(in, callbackP, ignoreCharSet);

     }

     finally {

       this.callback = null;

     }

   }

   protected void handleEmptyTag(TagElement tag) 

       throws ChangedCharSetException {

     if (callback != null) callback.notifyCurrentIsFictional(tag.fictional());

     super.handleEmptyTag(tag);

   }

   protected void handleStartTag(TagElement tag) {

     if (callback != null) 

       callback.notifyCurrentIsFictional(tag.fictional());

     super.handleStartTag(tag);

   }

   protected void handleEndTag(TagElement tag) {

     if (callback != null) 

       callback.notifyCurrentIsFictional(tag.fictional());

     super.handleEndTag(tag);

   }

 }