/*
* 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.isis.viewer.wicket.ui.components.widgets.linkandlabel;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.behavior.AbstractAjaxBehavior;
import org.apache.wicket.request.IRequestHandler;
import org.apache.wicket.request.Url;
import org.apache.wicket.request.UrlRenderer;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.isis.viewer.wicket.ui.actionresponse.ActionResultResponseHandlingStrategy;
public abstract class AjaxDeferredBehaviour extends AbstractAjaxBehavior {
private static final long serialVersionUID = 1L;
public static enum OpenUrlStrategy {
NEW_WINDOW {
@Override
public String javascriptFor(AjaxDeferredBehaviour deferredBehaviour, String url) {
final Url parsedUrl = Url.parse(url);
final RequestCycle requestCycle = deferredBehaviour.getComponent().getRequestCycle();
final UrlRenderer urlRenderer = requestCycle.getUrlRenderer();
String fullUrl = urlRenderer.renderFullUrl(parsedUrl);
return "function(){Wicket.Event.publish(Isis.Topic.OPEN_IN_NEW_TAB, '" + fullUrl + "');}";
}
},
SAME_WINDOW {
@Override
public String javascriptFor(AjaxDeferredBehaviour deferredBehaviour, String url) {
return "\"window.location.href='" + url + "'\"";
}
};
public abstract String javascriptFor(AjaxDeferredBehaviour deferredBehaviour, String url);
}
private final OpenUrlStrategy openUrlStrategy;
protected AjaxDeferredBehaviour(final OpenUrlStrategy openUrlStrategy) {
this.openUrlStrategy = openUrlStrategy;
}
/**
* Call this method to initiate the download.
*/
public void initiate(AjaxRequestTarget target) {
String url = getCallbackUrl().toString();
url = ActionResultResponseHandlingStrategy.expanded(url);
String func = openUrlStrategy.javascriptFor(this, url);
// the timeout is needed to let Wicket release the channel
String javascriptFor = "setTimeout(" + func + ", 100);";
target.appendJavaScript(javascriptFor);
}
@Override
public void onRequest() {
IRequestHandler handler = getRequestHandler();
if(handler != null) {
getComponent().getRequestCycle().scheduleRequestHandlerAfterCurrent(handler);
}
}
protected abstract IRequestHandler getRequestHandler();
}