sf.wicklet.ext.ui.accordion.AccordionBehavior.java Source code

Introduction

Here is the source code for sf.wicklet.ext.ui.accordion.AccordionBehavior.java

Source

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You should have received a copy of  the license along with this library.
 * You may also obtain a copy of the License at
 *         http://www.apache.org/licenses/LICENSE-2.0.
 */
package sf.wicklet.ext.ui.accordion;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
import org.apache.wicket.request.resource.ResourceReference;

/**
 * A simple accordion that hide/show the content when its header is clicked.
 * If CSS class for header is specified, any decendent of the accordion element with the given class is
 * considered as a header. Otherwise the first and every other child is consider as a header.
 * The element that follows the header is the content.
 */
public class AccordionBehavior extends Behavior {

    private static final long serialVersionUID = 1L;
    private final String id;
    private final String header;
    private final ResourceReference[] refs;

    public AccordionBehavior(final Object id, final ResourceReference... refs) {
        this.id = id.toString();
        this.refs = refs;
        header = null;
    }

    public AccordionBehavior(final Object id, final Object headerclass, final ResourceReference... refs) {
        this.id = id.toString();
        header = headerclass.toString();
        this.refs = refs;
    }

    @Override
    public void renderHead(final Component component, final IHeaderResponse response) {
        if (refs != null && refs.length > 0) {
            for (final ResourceReference ref : refs) {
                response.render(JavaScriptHeaderItem.forReference(ref));
            }
        }
        response.render(OnDomReadyHeaderItem
                .forScript(String.format("$('#%s %s').click(function() { $(this).next().toggle(); })", id,
                        (header == null ? " > *:nth-child(odd)" : " ." + header))));
    }
}