org.wicketstuff.dojo11.widgetloadingpolicy.OnUserDemandLoadingPolicy.java Source code

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Here is the source code for org.wicketstuff.dojo11.widgetloadingpolicy.OnUserDemandLoadingPolicy.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.wicketstuff.dojo11.widgetloadingpolicy;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.html.IHeaderResponse;

/**
 * A policy to make the widget on User deman calling
 * @author Vincent Demay
 */
public class OnUserDemandLoadingPolicy implements IDojoWidgetLoadingPolicy {
    Component component;
    private boolean hasbeenLoaded = false;

    /**
     * @see org.wicketstuff.dojo11.widgetloadingpolicy.IDojoWidgetLoadingPolicy#renderHead(org.apache.wicket.markup.html.IHeaderResponse, org.apache.wicket.Component)
     */
    public void renderHead(IHeaderResponse response, Component component) {
        this.component = component;
    }

    /**
     * Method to call in order to make the dojo parsing of the widget
     * @param target target
     */
    public void loadNow(AjaxRequestTarget target) {
        if (!hasbeenLoaded) {
            target.prependJavascript("dojo.hostenv.makeWidgets();");
        }
    }

    /**
     * @see org.wicketstuff.dojo11.widgetloadingpolicy.IDojoWidgetLoadingPolicy#onComponentReRendered(org.apache.wicket.ajax.AjaxRequestTarget)
     */
    public void onComponentReRendered(AjaxRequestTarget ajaxTarget) {
        hasbeenLoaded = false;
    }

}