Name: rm29839 Date: 02/02/98


The setEnabled(boolean b) method of AbstractAction, does not disable the Button it was added to, nor does it prevent the
actionPerformed method of the AbstractAction implementation from being called.

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

public class Test extends JFrame {
  public static void main(String [] args) {
    JFrame f = new Test();
    f.pack();
    f.setVisible(true);
  }

  public Test() {
    super("Test");
    _action = new AbstractAction() {
      public void actionPerformed(ActionEvent ev) {
System.out.println("performed");
      }
      public void setEnabled(boolean b) {
super.setEnabled(b);
System.out.println(b);
      }
    };

    JButton button = new JButton("Test");
    button.addActionListener(_action);

    JButton button2 = new JButton("Disable");
    button2.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ev) {
System.out.println("Disable");
_action.setEnabled(false);
      }
    }
);
    this.getContentPane().setLayout(new FlowLayout());
    this.getContentPane().add(button);
    this.getContentPane().add(button2);
  }

  Action _action;
}

----
javac Test.java
java Test

true
performed
performed
Disable
false
performed
(Review ID: 24327)
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