JPanel Action Listener

Question

I have a JPanel with a bunch of different check boxes and text fields, I have a button that\'s disabled, and needs to be enabled when specific configurations are setup. What

Answer 1

A suggestion could be to derive a class from each of the components you're using and add an ActionListener that bubbles up the Container tree and looks for the first Container that implements a custom interface like this:

public interface MyCommandProcessor {
  void execute(String actionCommand);
}

public class MyButton extends JButton {
  public MyButton(string actionCommand) {
    setActionCommand(actionCommand);
    addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent ae) {
        Container traverser = MyButton.this;
        while (traverser != null && !(traverser instanceof MyCommandProcessor))
          traverser = traverser.getParent();
        if (traverser != null)
          ((CommandListener)traverser).execute(ae.getActionCommand());
      }
    });
  }
}

public class MyApp extends JFrame implements MyCommandListener {
  public MyApp() {
    JPanel panel = new Panel();
    panel.add(new MyButton("MyButton got pressed"));
  }

  public void execute(String actionCommand) {
    System.out.println(actionCommand);
  }
}