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.behavior.HeaderContributor;
022    import org.apache.wicket.markup.html.resources.JavaScriptReference;
023    
024    /**
025     * Component for a script (JavaScript) link. The stylesheet is expected to be named
026     * <ClassName>.js 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 ScriptLink extends JavaScriptReference {
031            private static String EXT = ".js";
032            
033            /** Builds a ScriptLink based on the given class. */
034            public ScriptLink(String id, Class componentClass) {
035                    super(id, componentClass, componentClass.getSimpleName() + EXT);
036            }
037            
038            /**
039             * Get a [classname].js header contriubtor that can be added to a component without any reference in
040             * its markup. Useful for subclasses that do not have their own templates.
041             * @param componentClass javascript file should be in same package and have same base name
042             * @return contributor to add to component
043             */
044            public static HeaderContributor headerContributor(Class componentClass) {
045                    return HeaderContributor.forJavaScript(
046                                    componentClass, componentClass.getSimpleName() + EXT);
047            }
048    }