cannot close a JPopupMenu by clicking on a disabled component

Name: mt13159 Date: 08/14/2001


If a JPopupMenu is visible you cannot close it if you click on
a disabled component. Click on an enabled component will dismiss
the menu. Clicking on a disabled component dismisses the JPopupMenu
in JDK 1.1.8, JDK 1.2.2, and JDK 1.3.1. It does not work in
JDK 1.4 build 74. Run the following test case:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class PopupTest extends JFrame
{
    public static void main(String[] args)
    {
        PopupTest t = new PopupTest();
        t.setSize(320,240);
        t.setVisible(true);
    }

    public PopupTest()
    {
        addWindowListener(new WindowAdapter()
        {
            public void windowClosing(WindowEvent e)
            {
                System.exit(0);
            }
        });

        getContentPane().setLayout(new BorderLayout());
        JPanel p = new JPanel(new BorderLayout());
        getContentPane().add(BorderLayout.CENTER, p);

        JButton b = new JButton("step 1: press me to display menu");
        b.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                JPopupMenu m = new JPopupMenu();
                m.add(new JMenuItem("item 1"));
                m.add(new JMenuItem("item 2"));
                m.add(new JMenuItem("item 3"));
                m.add(new JMenuItem("item 4"));
                m.add(new JMenuItem("item 5"));
                m.add(new JMenuItem("item 6"));
                m.show((Component)e.getSource(), 0, 10);
            }
        });


        JLabel disabled = new JLabel("step 2: click me and notice menu is not dismissed");
        disabled.setEnabled(false);

        JLabel enabled = new JLabel("step 3: click me and notice menu is dismissed");

        p.add(BorderLayout.NORTH, b);
        p.add(BorderLayout.CENTER, disabled);
        p.add(BorderLayout.SOUTH, enabled);
    }
}
(Review ID: 129568)
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