001    /*
002     * Databinder: a simple bridge from Wicket to Hibernate
003     * Copyright (C) 2006  Nathan Hamblen nathan@technically.us
004     
005     * This library is free software; you can redistribute it and/or
006     * modify it under the terms of the GNU Lesser General Public
007     * License as published by the Free Software Foundation; either
008     * version 2.1 of the License, or (at your option) any later version.
009     * 
010     * This library is distributed in the hope that it will be useful,
011     * but WITHOUT ANY WARRANTY; without even the implied warranty of
012     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013     * Lesser General Public License for more details.
014     * 
015     * You should have received a copy of the GNU Lesser General Public
016     * License along with this library; if not, write to the Free Software
017     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
018     */
019    package net.databinder.components;
020    
021    import org.apache.wicket.markup.ComponentTag;
022    import org.apache.wicket.markup.html.resources.PackagedResourceReference;
023    
024    /**
025     * Component for a stylesheet link. The stylesheet is expected to be named
026     * <ClassName>.css for the class specified in the constructor and be located in 
027     * the same package as that class.
028     * @author Nathan Hamblen
029     */
030    public class StyleLink extends PackagedResourceReference {
031            
032            /** Builds a StyleLinkbased on the given class. */
033            public StyleLink(String id, Class pageClass) {
034                    super(id, pageClass, pageClass.getSimpleName() + ".css", "href");
035            }
036            
037            protected StyleLink(String id, Class pageClass, String filename) {
038                    super(id, pageClass, filename, "href");
039            }
040            
041            /** Sets appropriate href, type, and rel values for the stylesheet. */
042            @Override
043            protected void onComponentTag(ComponentTag tag) {
044                    // ensure valid css tag
045                    checkComponentTag(tag, "link");
046                    tag.put("type", "text/css");
047                    tag.put("rel", "stylesheet");
048                    super.onComponentTag(tag);
049            }
050    }