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ClientWindowFactoryImpl.java
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ClientWindowFactoryImpl.java
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/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.faces.lifecycle;
import com.sun.faces.config.WebConfiguration;
import javax.faces.application.Application;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.PostConstructApplicationEvent;
import javax.faces.event.SystemEvent;
import javax.faces.event.SystemEventListener;
import javax.faces.lifecycle.ClientWindow;
import javax.faces.lifecycle.ClientWindowFactory;
public class ClientWindowFactoryImpl extends ClientWindowFactory {
private boolean isClientWindowEnabled = false;
private WebConfiguration config = null;
public ClientWindowFactoryImpl() {
super(null);
FacesContext context = FacesContext.getCurrentInstance();
context.getApplication().subscribeToEvent(PostConstructApplicationEvent.class, Application.class, new PostConstructApplicationListener());
}
public ClientWindowFactoryImpl(boolean ignored) {
super(null);
isClientWindowEnabled = false;
}
private class PostConstructApplicationListener implements SystemEventListener {
@Override
public boolean isListenerForSource(Object source) {
return source instanceof Application;
}
@Override
public void processEvent(SystemEvent event) throws AbortProcessingException {
postConstructApplicationInitialization();
}
}
private void postConstructApplicationInitialization() {
FacesContext context = FacesContext.getCurrentInstance();
ExternalContext extContext = context.getExternalContext();
config = WebConfiguration.getInstance(extContext);
String optionValue = config.getOptionValue(WebConfiguration.WebContextInitParameter.ClientWindowMode);
isClientWindowEnabled = null != optionValue && "url".equals(optionValue);
}
@Override
public ClientWindow getClientWindow(FacesContext context) {
if (!isClientWindowEnabled) {
return null;
}
return new ClientWindowImpl();
}
}