Name: gm110360 Date: 11/12/2001


java version "1.3.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_01)
Java HotSpot(TM) Client VM (build 1.3.1_01, mixed mode)

I found this problem when I wanted to verify the text in a field once the field
loses focus. If the text was invalid then I would bring up a modal dialog with
an OK and Help button. I found that if the field loses focus by way of a mouse
click then the modal dialog does not respond to mouse clicks, the buttons do
nothing, but it does respond to the space bar. If the field loses focus by
pressing the tab key then the modal dialog responds to the mouse.This is only
occuring on Windows platforms, could not reproduce on Soalris.

In my test program, I can see that the button is getting mouseEntered and
mouseClicked events, but not mousePressed or mouseReleased when the problem
occurs. This program will create a frame with two text fields. When focus
leaves the first one, a modal dialog with a button appears. First use tab to
change focus between fields to bring up the modal dialog and verify you can use
the mouse to click on the button and dismiss the dialog. Next, use the mouse to
click in the fields to bring up the dialog. Now the dialog should not be
responding to mouse clicks until you click some where on the desktop, so that
the dialog loses focus.

Test Program:
import java.awt.*;
import java.awt.event.*;

public class ModalBug extends Frame
                       implements FocusListener,
                                  MouseListener,
                                  WindowListener
{

    TextField bugField1;
    TextField bugField2;
    Panel bugPanel;
    Button bugButton;
    Dialog bugDialog;

    public void windowOpened(WindowEvent e){}
    public void windowClosed(WindowEvent e){}
    public void windowIconified(WindowEvent e){}
    public void windowDeiconified(WindowEvent e){}
    public void windowDeactivated(WindowEvent e){}
    public void windowActivated (WindowEvent e){}
    public void windowClosing (WindowEvent e)
    {
        System.out.println("window closing");
        Window tmp = (Window)e.getSource();
        tmp.dispose();
    }

    public void mouseClicked(MouseEvent e){System.out.println("mouse clicked");}
    public void mousePressed(MouseEvent e){System.out.println("mouse pressed");}
    public void mouseReleased(MouseEvent e)
    {
        System.out.println("mouse released");
        bugDialog.dispose();
    }
    public void mouseEntered(MouseEvent e) {System.out.println("mouse
entered");}
    public void mouseExited(MouseEvent e){System.out.println("mouse exited");}

    public void focusGained(FocusEvent e){}
    public void focusLost(FocusEvent e)
    {
        bugDialog = new Dialog(this, true);
        bugButton = new Button();
        bugButton.addMouseListener(this);
        bugDialog.add(bugButton);
        bugDialog.setSize(50,50);
        bugDialog.addWindowListener(this);

        Point oldLoc = bugDialog.getLocation();
        if (oldLoc.x == 0 && oldLoc.y == 0)
        {
            Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
            Dimension size = bugDialog.getSize();

            int x = (screen.width - size.width)/2;
            if (x < 0)
               x = 0;
            int y = (screen.height - size.height)/2;
            if (y < 0)
               y = 0;

            bugDialog.setLocation(x, y);
        }
        bugDialog.setVisible (true);
    }


    public ModalBug()
    {
        super();
        bugPanel = new Panel();
        bugField1 = new TextField();
        bugField1.addFocusListener(this);
        bugField2 = new TextField();
        bugPanel.add(bugField1);
        bugPanel.add(bugField2);
        this.add(bugPanel);
        this.setSize(100,100);
        this.addWindowListener(this);

        Point oldLoc = getLocation();
        if (oldLoc.x == 0 && oldLoc.y == 0)
        {
            Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
            Dimension size = this.getSize();

            int x = (screen.width - size.width)/2;
            if (x < 0)
               x = 0;
            int y = (screen.height - size.height)/2;
            if (y < 0)
               y = 0;

            setLocation(x, y);
        }
        this.setVisible(true);
    }
    public static void main(String args[])
    {
        ModalBug myTest = new ModalBug();
    }
}

Release Regression From : 1.3.1_01a
The above release value was the last known release where this
bug was knwon to work. Since then there has been a regression.

(Review ID: 134792)
======================================================================