Name: krT82822 Date: 11/25/98


The JRootPane() method setDefaultButton() should
specify a JButton to be activated if the ENTER
key is pressed within the pane. This only appears
to work inside a JFrame. It doesn't work inside
a JDialog. This problem affects both JDK 1.1.7
and JDK1.2RC2.

Here is some example code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


class test {
  JDialog dialog = new JDialog ();
  Container contentPane = dialog.getContentPane ();
  JButton ok = new JButton ("OK");
  JButton cancel = new JButton ("Cancel");

  test () {
    ok.addActionListener (new ActionListener () {
      public void actionPerformed (ActionEvent e) {
System.out.println ("Pressed!");
      }
    });

    contentPane.setLayout (new FlowLayout ());
    contentPane.add (ok);
    contentPane.add (cancel);
    dialog.getRootPane().setDefaultButton (ok);
    dialog.requestFocus ();
    dialog.setSize (200, 100);
    dialog.setVisible (true);
  }

  public static void main (String[] args) {
    new test ();
  }
}

This brings up a small window. Pressing ENTER
in the window does nothing, though the OK button
is highlighted. If the JDialogs are replaced
by JFrames, then it works.
(Review ID: 43246)
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