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/*
* Copyright 2007 Red Hat, Inc.
* This file is part of IcedTea, http://icedtea.classpath.org
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package net.sourceforge.jnlp;
import net.sourceforge.jnlp.AppletLog;
import net.sourceforge.jnlp.runtime.AppThreadGroup;
import net.sourceforge.jnlp.runtime.AppletInstance;
import net.sourceforge.jnlp.runtime.JNLPRuntime;
import java.net.URL;
import java.util.Hashtable;
import sun.applet.AppletViewerPanel;
import sun.awt.SunToolkit;
/**
* This panel calls into netx to run an applet, and pipes the display
* into a panel from gcjwebplugin.
*
* @author Francis Kung <fkung@redhat.com>
*/
public class NetxPanel extends AppletViewerPanel {
private PluginBridge bridge = null;
private boolean exitOnFailure = true;
private AppletInstance appInst = null;
private boolean appletAlive;
public NetxPanel(URL documentURL, Hashtable<String, String> atts) {
super(documentURL, atts);
}
// overloaded constructor, called when initialized via plugin
public NetxPanel(URL documentURL, Hashtable<String, String> atts,
boolean exitOnFailure) {
this(documentURL, atts);
this.exitOnFailure = exitOnFailure;
this.appletAlive = true;
}
@Override
public void run() {
/*
* create an AppContext for this thread associated with this particular
* plugin instance (which runs in a different thread group from the rest
* of the plugin).
*/
SunToolkit.createNewAppContext();
super.run();
}
@Override
protected void showAppletException(Throwable t) {
/*
* Log any exceptions thrown while loading, initializing, starting,
* and stopping the applet.
*/
AppletLog.log(t);
super.showAppletException(t);
}
//Overriding to use Netx classloader. You might need to relax visibility
//in sun.applet.AppletPanel for runLoader().
protected void runLoader() {
try {
bridge = new PluginBridge(baseURL,
getDocumentBase(),
getJarFiles(),
getCode(),
getWidth(),
getHeight(),
atts);
doInit = true;
dispatchAppletEvent(APPLET_LOADING, null);
status = APPLET_LOAD;
Launcher l = new Launcher(exitOnFailure);
try {
appInst = (AppletInstance) l.launch(bridge, this);
} catch (LaunchException e) {
// Assume user has indicated he does not trust the
// applet.
if (exitOnFailure)
System.exit(1);
}
applet = appInst.getApplet();
//On the other hand, if you create an applet this way, it'll work
//fine. Note that you might to open visibility in sun.applet.AppletPanel
//for this to work (the loader field, and getClassLoader).
//loader = getClassLoader(getCodeBase(), getClassLoaderCacheKey());
//applet = createApplet(loader);
// This shows that when using NetX's JNLPClassLoader, keyboard input
// won't make it to the applet, whereas using sun.applet.AppletClassLoader
// works just fine.
dispatchAppletEvent(APPLET_LOADING_COMPLETED, null);
if (applet != null) {
// Stick it in the frame
applet.setStub(this);
applet.setVisible(false);
add("Center", applet);
showAppletStatus("loaded");
validate();
}
} catch (Exception e) {
this.appletAlive = false;
e.printStackTrace();
}
}
/**
* Creates a new Thread (in a new applet-specific ThreadGroup) for running
* the applet
*/
// Reminder: Relax visibility in sun.applet.AppletPanel
protected synchronized void createAppletThread() {
// initialize JNLPRuntime in the main threadgroup
synchronized (JNLPRuntime.initMutex) {
//The custom NetX Policy and SecurityManager are set here.
if (!JNLPRuntime.isInitialized()) {
if (JNLPRuntime.isDebug())
System.out.println("initializing JNLPRuntime...");
JNLPRuntime.initialize(false);
} else {
if (JNLPRuntime.isDebug())
System.out.println("JNLPRuntime already initialized");
}
}
// when this was being done (incorrectly) in Launcher, the call was
// new AppThreadGroup(mainGroup, file.getTitle());
ThreadGroup tg = new AppThreadGroup(Launcher.mainGroup,
this.documentURL.toString());
handler = new Thread(tg, this);
handler.start();
}
public void updateSizeInAtts(int height, int width) {
this.atts.put("height", Integer.toString(height));
this.atts.put("width", Integer.toString(width));
}
public ClassLoader getAppletClassLoader() {
return appInst.getClassLoader();
}
public boolean isAlive() {
return handler != null && handler.isAlive() && this.appletAlive;
}
}
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