001    /*
002     * Copyright (c) 2005 Marko Karppinen & Co. LLC
003     *
004     * Permission is hereby granted, free of charge, to any person obtaining a 
005     * copy of this software and associated documentation files (the "Software"), 
006     * to deal in the Software without restriction, including without limitation 
007     * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
008     * and/or sell copies of the Software, and to permit persons to whom the 
009     * Software is furnished to do so, subject to the following conditions:
010     *
011     * The above copyright notice and this permission notice shall be included in 
012     * all copies or substantial portions of the Software.
013     *
014     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
015     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
016     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
017     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
018     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
019     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
020     * DEALINGS IN THE SOFTWARE.
021     */
022    
023    package fi.karppinen.xml;
024    
025    import gnu.xml.pipeline.EventConsumer;
026    import gnu.xml.pipeline.EventFilter;
027    
028    import org.xml.sax.Attributes;
029    import org.xml.sax.SAXException;
030    
031    /**
032     * Adds an <code>action</code> attribute to XHTML 1.x <code>form</code> elements.
033     * The <code>form</code> elements must not have an <code>action</code> attribute 
034     * to begin with.
035     * 
036     * @version $Id: FormActionInjector.java,v 1.1 2006/10/30 19:57:09 hsivonen Exp $
037     * @author hsivonen
038     */
039    public class FormActionInjector extends EventFilter {
040    
041        private String action;
042    
043        /**
044         * 
045         */
046        public FormActionInjector(String action) {
047            super();
048            this.action = action;
049            setContentHandler(this);
050        }
051    
052        /**
053         * @param consumer
054         */
055        public FormActionInjector(String action, EventConsumer consumer) {
056            super(consumer);
057            this.action = action;
058            setContentHandler(this);
059        }
060        
061        /**
062         * @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
063         */
064        public void startElement(String uri, String localName, String qName,
065                Attributes atts) throws SAXException {
066            if("form".equals(localName) && "http://www.w3.org/1999/xhtml".equals(uri)) {
067                AttributesImpl attributes = new AttributesImpl(atts);
068                attributes.addAttribute("action", action);
069                super.startElement(uri, localName, qName, attributes);            
070            } else {
071                super.startElement(uri, localName, qName, atts);                        
072            }
073        }
074    
075    
076    }