/** Reload the applet. */
void appletReload() {
panel.sendEvent(AppletPanel.APPLET_STOP);
panel.sendEvent(AppletPanel.APPLET_DESTROY);
panel.sendEvent(AppletPanel.APPLET_DISPOSE);
/**
* Fixed #4501142: Classlaoder sharing policy doesn't take "archive" into account. This will be
* overridden by Java Plug-in. [stanleyh]
*/
AppletPanel.flushClassLoader(panel.getClassLoaderCacheKey());
/*
* Make sure we don't have two threads running through the event queue
* at the same time.
*/
try {
panel.joinAppletThread();
panel.release();
} catch (InterruptedException e) {
return; // abort the reload
}
panel.createAppletThread();
panel.sendEvent(AppletPanel.APPLET_LOAD);
panel.sendEvent(AppletPanel.APPLET_INIT);
panel.sendEvent(AppletPanel.APPLET_START);
}
/** Return an enumeration of all the accessible applets on this page. */
public Enumeration getApplets() {
AppletSecurity security = (AppletSecurity) System.getSecurityManager();
Vector v = new Vector();
SocketPermission panelSp = new SocketPermission(panel.getCodeBase().getHost(), "connect");
for (Enumeration e = appletPanels.elements(); e.hasMoreElements(); ) {
AppletPanel p = (AppletPanel) e.nextElement();
if (p.getDocumentBase().equals(panel.getDocumentBase())) {
SocketPermission sp = new SocketPermission(p.getCodeBase().getHost(), "connect");
if (panelSp.implies(sp)) {
v.addElement(p.applet);
}
}
}
return v.elements();
}
/** Get an applet by name. */
public Applet getApplet(String name) {
AppletSecurity security = (AppletSecurity) System.getSecurityManager();
name = name.toLowerCase();
SocketPermission panelSp = new SocketPermission(panel.getCodeBase().getHost(), "connect");
for (Enumeration e = appletPanels.elements(); e.hasMoreElements(); ) {
AppletPanel p = (AppletPanel) e.nextElement();
String param = p.getParameter("name");
if (param != null) {
param = param.toLowerCase();
}
if (name.equals(param) && p.getDocumentBase().equals(panel.getDocumentBase())) {
SocketPermission sp = new SocketPermission(p.getCodeBase().getHost(), "connect");
if (panelSp.implies(sp)) {
return p.applet;
}
}
}
return null;
}
/**
* Send the initial set of events to the appletviewer event queue. On start-up the current
* behaviour is to load the applet and call Applet.init() and Applet.start().
*/
private void initEventQueue() {
// appletviewer.send.event is an undocumented and unsupported system
// property which is used exclusively for testing purposes.
String eventList = System.getProperty("appletviewer.send.event");
if (eventList == null) {
// Add the standard events onto the event queue.
panel.sendEvent(AppletPanel.APPLET_LOAD);
panel.sendEvent(AppletPanel.APPLET_INIT);
panel.sendEvent(AppletPanel.APPLET_START);
} else {
// We're testing AppletViewer. Force the specified set of events
// onto the event queue, wait for the events to be processed, and
// exit.
// The list of events that will be executed is provided as a
// ","-separated list. No error-checking will be done on the list.
String[] events = splitSeparator(",", eventList);
for (int i = 0; i < events.length; i++) {
System.out.println("Adding event to queue: " + events[i]);
if (events[i].equals("dispose")) panel.sendEvent(AppletPanel.APPLET_DISPOSE);
else if (events[i].equals("load")) panel.sendEvent(AppletPanel.APPLET_LOAD);
else if (events[i].equals("init")) panel.sendEvent(AppletPanel.APPLET_INIT);
else if (events[i].equals("start")) panel.sendEvent(AppletPanel.APPLET_START);
else if (events[i].equals("stop")) panel.sendEvent(AppletPanel.APPLET_STOP);
else if (events[i].equals("destroy")) panel.sendEvent(AppletPanel.APPLET_DESTROY);
else if (events[i].equals("quit")) panel.sendEvent(AppletPanel.APPLET_QUIT);
else if (events[i].equals("error")) panel.sendEvent(AppletPanel.APPLET_ERROR);
else
// non-fatal error if we get an unrecognized event
System.out.println("Unrecognized event name: " + events[i]);
}
while (!panel.emptyEventQueue()) ;
appletSystemExit();
}
}
/** Stop the applet. */
void appletStop() {
panel.sendEvent(AppletPanel.APPLET_STOP);
}
/** Start the applet. */
void appletStart() {
panel.sendEvent(AppletPanel.APPLET_START);
}
/** Restart the applet. */
void appletRestart() {
panel.sendEvent(AppletPanel.APPLET_STOP);
panel.sendEvent(AppletPanel.APPLET_DESTROY);
panel.sendEvent(AppletPanel.APPLET_INIT);
panel.sendEvent(AppletPanel.APPLET_START);
}
/** Make sure the atrributes are uptodate. */
public void updateAtts() {
Dimension d = panel.size();
Insets in = panel.insets();
panel.atts.put("width", Integer.toString(d.width - (in.left + in.right)));
panel.atts.put("height", Integer.toString(d.height - (in.top + in.bottom)));
}
/** Create the applet viewer */
public AppletViewer(
int x,
int y,
URL doc,
Hashtable atts,
PrintStream statusMsgStream,
AppletViewerFactory factory) {
this.factory = factory;
this.statusMsgStream = statusMsgStream;
setTitle(amh.getMessage("tool.title", atts.get("code")));
MenuBar mb = factory.getBaseMenuBar();
Menu m = new Menu(amh.getMessage("menu.applet"));
addMenuItem(m, "menuitem.restart");
addMenuItem(m, "menuitem.reload");
addMenuItem(m, "menuitem.stop");
addMenuItem(m, "menuitem.save");
addMenuItem(m, "menuitem.start");
addMenuItem(m, "menuitem.clone");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.tag");
addMenuItem(m, "menuitem.info");
addMenuItem(m, "menuitem.edit").disable();
addMenuItem(m, "menuitem.encoding");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.print");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.props");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.close");
if (factory.isStandalone()) {
addMenuItem(m, "menuitem.quit");
}
mb.add(m);
setMenuBar(mb);
add("Center", panel = new AppletViewerPanel(doc, atts));
add("South", label = new Label(amh.getMessage("label.hello")));
panel.init();
appletPanels.addElement(panel);
pack();
move(x, y);
setVisible(true);
WindowListener windowEventListener =
new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
appletClose();
}
public void windowIconified(WindowEvent evt) {
appletStop();
}
public void windowDeiconified(WindowEvent evt) {
appletStart();
}
};
class AppletEventListener implements AppletListener {
final Frame frame;
public AppletEventListener(Frame frame) {
this.frame = frame;
}
public void appletStateChanged(AppletEvent evt) {
AppletPanel src = (AppletPanel) evt.getSource();
switch (evt.getID()) {
case AppletPanel.APPLET_RESIZE:
{
if (src != null) {
resize(preferredSize());
validate();
}
break;
}
case AppletPanel.APPLET_LOADING_COMPLETED:
{
Applet a = src.getApplet(); // j86.sun.applet.AppletPanel
// Fixed #4754451: Applet can have methods running on main
// thread event queue.
//
// The cause of this bug is that the frame of the applet
// is created in main thread group. Thus, when certain
// AWT/Swing events are generated, the events will be
// dispatched through the wrong event dispatch thread.
//
// To fix this, we rearrange the AppContext with the frame,
// so the proper event queue will be looked up.
//
// Swing also maintains a Frame list for the AppContext,
// so we will have to rearrange it as well.
//
if (a != null)
AppletPanel.changeFrameAppContext(frame, SunToolkit.targetToAppContext(a));
else AppletPanel.changeFrameAppContext(frame, AppContext.getAppContext());
break;
}
}
}
};
addWindowListener(windowEventListener);
panel.addAppletListener(new AppletEventListener(this));
// Start the applet
showStatus(amh.getMessage("status.start"));
initEventQueue();
}