// <applet code='AppletServer' width='400' height='300'></applet>
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.*;

public class AppletServer extends JApplet {
	public void init() {
		JPanel p = new JPanel(new BorderLayout(3,3));
		p.setBorder( new EmptyBorder(5,5,5,5) );

		Enumeration en = getAppletContext().getApplets();
		Vector clientList = new Vector();
		while(en.hasMoreElements()) {
			Applet applet = (Applet)en.nextElement();
			System.out.println( "Applet: " + applet.getName() );
			if (!applet.getName().equals( getName() )) {
				clientList.add(applet.getName());
			}
		}
		final JList list = new JList(clientList);
		list.setBorder(new BevelBorder(BevelBorder.LOWERED));
		p.add( list, BorderLayout.WEST );

		final JTextArea messageLog = new JTextArea(2,2);
		messageLog.setWrapStyleWord(true);
		messageLog.setEditable(false);
		messageLog.setFocusable(false);
		p.add( new JScrollPane(
			messageLog,
			ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
			ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER) );

		final JTextField message = new JTextField(20);
		message.addActionListener( new ActionListener(){
			public void actionPerformed(ActionEvent ae) {
				Object[] values = list.getSelectedValues();
				if (values.length==0) {
					JOptionPane.showMessageDialog(
						AppletServer.this,
						"No client selected to give the message!",
						"Select a client!",
						JOptionPane.ERROR_MESSAGE );
				} else {
					for (int ii=0; ii<values.length; ii++) {
						AppletClient ca = (AppletClient)getAppletContext().
							getApplet((String)values[ii]);
						ca.appendMessage(message.getText());
						messageLog.append( 
							ca.getName() + 
							": " + 
							message.getText() + 
							System.getProperty("line.separator") );
					}
				}
			}
		} );
		p.add(message, BorderLayout.NORTH);

		setContentPane(p);
		validate();
	}
}