Name: gm110360 Date: 04/22/2004


FULL PRODUCT VERSION :
java version "1.4.2_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
Java HotSpot(TM) Client VM (build 1.4.2_04-b05, mixed mode)

FULL OS VERSION :
Microsoft Windows 2000 Professional
5.0.2195 Service Pack 3 Build 2195

A DESCRIPTION OF THE PROBLEM :
I have a main application JFrame which opens additional JFrames. When one of these other JFrames invokes a modal dialog, all windows (except the modal dialog) no longer respond to mouse events. This is fine, except that when I click on the Windows Taskbar to bring focus to the main application window, I can use shortcut keys to open JMenus and "click" JButtons. For example, I can now use Alt-F to open the file menu. I believe this behaviour is incorrect.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Run the below application.
- In the JFrame that shows up, click the "open frame" button
- In the new JFrame that shows up, click the "open dialog" button
- Notice that both JFrames no longer respond to mouse events
- Use alt-tab to bring the original JFrame to focus
- Notice that the File menu and "open frame" button can be invoked by pressing "alt-f" and "alt-o"

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Keyboard events do not do anything.
ACTUAL -
Keyboard events are handled!

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class TestModal
{
public TestModal()
{
try
{
UIManager.setLookAndFeel( UIManager.getSystemLookAndFeelClassName() );
}
catch ( Exception e ) {}
JFrame frame = new JFrame( "Main Window" );
JMenuBar menubar = new JMenuBar();
JMenu filemenu = new JMenu( "File" );
filemenu.setMnemonic( 'F' );
filemenu.add( new JMenuItem( "test" ) );
menubar.add( filemenu );

JButton button = new JButton( "open frame" );
button.setMnemonic( 'O' );
button.setActionCommand( "O" );
button.addActionListener( new FrameInvoker( frame ) );

JPanel panel = new JPanel();
panel.add( button );
panel.setPreferredSize( new Dimension( 500, 500 ) );

frame.setContentPane( panel );
frame.setJMenuBar( menubar );
frame.pack();
frame.setLocationRelativeTo( null );
frame.setVisible( true );
}

public static void main(String[] args)
{
TestModal testModal = new TestModal();
}

public class FrameInvoker implements ActionListener
{
JFrame mParent;
public FrameInvoker( JFrame parent )
{
mParent = parent;
}

public void actionPerformed( ActionEvent event )
{
JFrame frame = new JFrame( "Modal Parent" );
JPanel panel = new JPanel();

JButton button = new JButton( "open modal" );
button.setMnemonic( 'O' );
button.setActionCommand( "O" );
button.addActionListener( new DialogInvoker( frame ) );

panel.setPreferredSize( new Dimension( 200, 200 ) );
frame.setContentPane( panel );
frame.getContentPane().setLayout( new BorderLayout() );
frame.getContentPane().add( button );
frame.pack();
frame.setLocationRelativeTo( mParent );
frame.setVisible( true );
}
}

public class DialogInvoker implements ActionListener
{
JFrame mParent;
public DialogInvoker( JFrame parent )
{
mParent = parent;
}

public void actionPerformed( ActionEvent event )
{
JDialog dialog = new JDialog( mParent, "Modal Dialog", true );
JPanel panel = new JPanel();
panel.setPreferredSize( new Dimension( 200, 200 ) );
dialog.setContentPane( panel );
dialog.getContentPane().setLayout( new BorderLayout() );
dialog.getContentPane().add( new JButton( "bla" ) );
dialog.pack();
dialog.setLocationRelativeTo( mParent );
dialog.setVisible( true );
}

}

}
---------- END SOURCE ----------
(Incident Review ID: 208773)
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