Name: rk38400 Date: 05/18/98


Using the code given below, bring up the internal
message dialog. Click on the JTextField & focus is
moved there. Worse if you bring up the
JOptionPane.showMessageDialog() before dismissing
the internal dialog you are totally locked up.

import java.awt.*;
import java.awt.event.*;
import com.sun.java.swing.*;

class TestFrame extends JFrame {
  TestFrame() {
    getContentPane().setLayout(new FlowLayout());

    JButton dlgErrBtn = new JButton("Dialog error msg");
    dlgErrBtn.addActionListener(new DlgErrBtnController());
    getContentPane().add(dlgErrBtn);

    getContentPane().add(new JTextField("hello world"));

    JButton dlgInErrBtn = new JButton("Internal Dialog error msg");
    dlgInErrBtn.addActionListener(new DlgInErrBtnController());
    getContentPane().add(dlgInErrBtn);
    
    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    
    Msg.setParent(this);
  }

  class DlgErrBtnController extends AbstractAction {
    public void actionPerformed(ActionEvent evt) {
      Msg.err("Hello World\nWe have bugs\n");
    }
  }

  class DlgInErrBtnController extends AbstractAction {
    public void actionPerformed(ActionEvent evt) {
      Msg.errIn("Hello World\nWe have bugs\n");
    }
  }
}

class Msg {
  public static void err(String s) {
    if (frame == null)
      System.out.println(s);
    else
      JOptionPane.showMessageDialog(frame.getContentPane(),s,"Standard Dialog",JOptionPane.INFORMATION_MESSAGE);
  }
  public static void errIn(String s) {
    if (frame == null)
      System.out.println(s);
    else
      JOptionPane.showInternalMessageDialog(frame.getContentPane(),s,"Internal Message Dialog",JOptionPane.INFORMATION_MESSAGE);
  }
  
  public static void setParent(JFrame f) {
    frame = f;
  }
  private static JFrame frame;
}

public class TestApp {
  TestApp() throws Exception {
    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    frame = new TestFrame();
    frame.setSize(400,300);
    frame.setVisible(true);
  }

  public static void main(String[] argv) {
    try {
       new TestApp();
    }
    catch(Exception e) {
      System.out.println(e);
      e.printStackTrace();
    }
  }

  TestFrame frame;
}
(Review ID: 30613)
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