org.apache.wicket.ajax.WicketAjaxJQueryResourceReference.java Source code

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Here is the source code for org.apache.wicket.ajax.WicketAjaxJQueryResourceReference.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.wicket.ajax;

import java.util.List;

import org.apache.wicket.Application;
import org.apache.wicket.markup.head.HeaderItem;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.request.resource.JavaScriptResourceReference;
import org.apache.wicket.request.resource.ResourceReference;
import org.apache.wicket.resource.JQueryResourceReference;

/**
 * @author hoeve
 */
public class WicketAjaxJQueryResourceReference extends JavaScriptResourceReference {
    private static final long serialVersionUID = -2918665261694523156L;

    private static final WicketAjaxJQueryResourceReference INSTANCE = new WicketAjaxJQueryResourceReference();

    /**
     * @return the singleton INSTANCE
     */
    public static WicketAjaxJQueryResourceReference get() {
        return INSTANCE;
    }

    private WicketAjaxJQueryResourceReference() {
        super(AbstractDefaultAjaxBehavior.class, "res/js/wicket-ajax-jquery.js");
    }

    @Override
    public List<HeaderItem> getDependencies() {
        final ResourceReference jqueryReference;
        if (Application.exists()) {
            jqueryReference = Application.get().getJavaScriptLibrarySettings().getJQueryReference();
        } else {
            jqueryReference = JQueryResourceReference.getV2();
        }
        List<HeaderItem> dependencies = super.getDependencies();
        dependencies.add(JavaScriptHeaderItem.forReference(jqueryReference));
        return dependencies;
    }
}