/*							TestPrompt
*/
import java.applet.*;
import java.awt.*;
import java.util.*;
import java.awt.event.*;

public class TestPrompt extends Applet implements ActionListener, TextListener
	{
	TextField tf1;
	Panel crashPanel, crashPanel1, crashPanel2;
	Button crashButton, dontCrashButton;
	boolean isCrash = false;
	String tf1Prompt = "The prompt";
	
	public void init( )
		{
		setLayout( new BorderLayout( ) );
        setSize( 250, 150 );
        
        tf1 = new TextField( tf1Prompt );
        add( tf1, BorderLayout.NORTH );
        tf1.addTextListener( this );

		crashPanel = new Panel();
		crashPanel.setLayout( new GridLayout( 0, 1 ) );
        crashButton = new Button( "Do a setCaretPosition()          " );
        crashButton.addActionListener( this );
		crashPanel1 = new Panel();
        crashPanel1.add( crashButton );
        dontCrashButton = new Button( "Don't do a setCaretPosition() - active" );
        dontCrashButton.addActionListener( this );
		crashPanel2 = new Panel();
        crashPanel2.add( dontCrashButton );
        crashPanel.add( crashPanel1 );
        crashPanel.add( crashPanel2 );
        add( crashPanel, BorderLayout.SOUTH );
        
		setVisible( true );
		tf1.requestFocus();
		}
	// *
	// *						TextListener
	// *
	public void textValueChanged( TextEvent e )
		{
		System.out.println( "Text = " + tf1.getText() );
		try
			{
			if( e.getSource().equals( tf1 ) )
				{
				tf1.removeTextListener( this );
				System.out.println( "Clear the field except for first char." );
				tf1.setText( tf1.getText().substring(0,1) );
				if( isCrash )
					{
					System.out.println( "Set the cursor/caret." );
					tf1.setCaretPosition(1);   //Gen's an NPE in IE4.
					}
				else	
					{
  					System.out.println( "Don't set the cursor/caret." );
					}
				System.out.println( "Exit the try/catch." );
			    //tf1.addTextListener( this );			// no good here.
				}
			}
		catch( Exception ee )			// for bad index.
			{							// doesn't catch other NPE.
			}
		}
	public void keyPressed( KeyEvent e )
		{
		}
	public void keyReleased( KeyEvent e )
		{
		}
	// *	
	// *						ActionListener
	// *	
	public void actionPerformed( ActionEvent e )
		{
		if( e.getSource().equals( dontCrashButton ))
			{
			isCrash = false;
			crashButton.setLabel( "Do a setCaretPosition()" );
			dontCrashButton.setLabel( "Don't do a setCaretPosition() - active" );
			tf1.requestFocus();
		    tf1.addTextListener( this );			// no good.
			}	
		else if( e.getSource().equals( crashButton ))
			{
			isCrash = true;
			crashButton.setLabel( "Do a setCaretPosition() - active" );
			dontCrashButton.setLabel( "Don't do a setCaretPosition()" );
			tf1.requestFocus();
		    tf1.addTextListener( this );			// no good.
			}
		}	
	public void destroy()
		{
		removeAll();
		}
	}