Name: diC59631 Date: 11/13/98


1. Run SwingSet
2. Click on Internal Frame tab
3. Click on Title Bar of Frame Creator form
4. Click Make button
5. Click the Make button again

The Make button stays pressed, even if you click on another window.
(Review ID: 41352)
======================================================================

daniel.indrigo@Canada 1998-11-13

When a JCheckBox or JButton is clicked on in a
JInternalPane that does not have focus after
focusing another JInternalPane, the JCheckBox or
JButton behaves as though the cursor is over it
and the mouse button is being held even though
it should be completely selected. Also, the
JCheckBox's/JButton's
ItemListener's/ActionListener's
"itemStateChanged()"/"actionPerformed()" method
is not called even though the
JCheckBox/JButton has been clicked.

Steps to Recreate Problem:
After running the following code, click on
Test Frame One's title to focus that
JInternalPane and then click on Test Frame Two's
title to change focus to that frame. Now, try
clicking on the JCheckBox or JButton located in
Test Frame One. You will see that they
become only partially selected as the JButton has
become stuck in a pressed position or the
JCheckBox has turned gray without a check.
By normally clicking on either of the JButtons or
JCheckBoxes, "actionPerformed" or
"itemStateChanged" should be printed to the
console, yet they are not when you perform the
previously mentioned steps which shows that
their Action Listener and Item Listener's
"actionPerformed()" and "itemStateChanged()"
methods are not called.

Code:

import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class FocusProblem extends JInternalFrame implements ActionListener, ItemListener {
JButton testButtonOne = new JButton("Test Button One");
JButton testButtonTwo = new JButton("Test Button Two");
JCheckBox testBoxOne = new JCheckBox("Test Box One");
JCheckBox testBoxTwo = new JCheckBox("Test Box Two");
JDesktopPane desktop = new JDesktopPane();
JInternalFrame testFrameOne = new JInternalFrame("Test Frame One");
JInternalFrame testFrameTwo = new JInternalFrame("Test Frame Two");
public FocusProblem() {
desktop.setForeground(Color.gray);
desktop.setBackground(Color.gray);
testBoxOne.addItemListener(this);
testButtonOne.addActionListener(this);
testButtonOne.setMaximumSize(new Dimension(130, 30));
testFrameOne.setSize(140, 100);
testFrameOne.setLocation(1, 1);
testFrameOne.getContentPane().setLayout(new GridLayout(2,1));
testFrameOne.getContentPane().add(testBoxOne);
testFrameOne.getContentPane().add(testButtonOne);
desktop.add(testFrameOne);
testBoxTwo.addItemListener(this);
testButtonTwo.addActionListener(this);
testButtonTwo.setMaximumSize(new Dimension(130, 30));
testFrameTwo.setSize(140, 100);
testFrameTwo.setLocation(142, 1);
testFrameTwo.getContentPane().setLayout(new GridLayout(2,1));
testFrameTwo.getContentPane().add(testBoxTwo);
testFrameTwo.getContentPane().add(testButtonTwo);
desktop.add(testFrameTwo);
}
        public void itemStateChanged(ItemEvent e) {
System.out.println("itemStateChanged");
}
public void actionPerformed(ActionEvent e) {
System.out.println("actionPerformed");
}
public static void main(String args[]) {
   WindowListener testFrameListener = new WindowAdapter() {
     public void windowClosing(WindowEvent e) {
System.exit(0);
     }
    };
JFrame testFrame = new JFrame();
   testFrame.addWindowListener(testFrameListener);
FocusProblem testClass = new FocusProblem();
    testFrame.setContentPane(testClass.desktop);
    testFrame.pack();
testFrame.setSize(new Dimension(300,150));
testFrame.show();
}
}

========================================================================

This bug causes us all kinds of nasty problems, and is easily demonstrable using the SwingSet demo.

* Run the demo
* switch to the JInternalFrame Tab
* Hit the "make" button to create an Internal Frame.
* Now click back on the Frame Creator Internal Frame to select it.
* Now click on the down arrow of the scroll pane displaying the fish. The arrow stays depressed, causing the view to auto scroll to the bottom. Clicking again will "unstick" the button.
* To see another example, now click the "Make" button on the frame creator internal frame. The button will stick again.

What's happening is that the unselected internal frame is correctly getting the mousePressed event, but not the mouseReleased event. It causes problems with anything that relies on this event, not just buttons.

This bug causes many nasty problems for us, we really need this one fixed... If a fix is not imminant, please could you tell us a workaround if you know of one, this is a show stopper for us.

If you need a simpler sample program than the SwingSet, I'd be happy to provide one, please let me know.

NOTE: this bug is the cause of bug #4189791