Re: Buttons sometimes don't get events

Hm... this seems to work better:

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

public class Swing5 {
    public static void main(String[] args) {
        new Swing5();
    }

    public Swing5() {
        JFrame f = new JFrame("Swing5");
        f.setSize(300, 100);
        Container c = f.getContentPane();
        c.setLayout(new BorderLayout());
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel p1 = new JPanel();
        p1.setPreferredSize(new Dimension(300, 100));

        JPanel p2 = new JPanel();
        p2.setMinimumSize(new Dimension(0, 50));
        p2.setMaximumSize(new Dimension(0, 50));
        p2.setPreferredSize(new Dimension(300, 50));

        JSplitPane sp1 = new JSplitPane();
        sp1.setDividerSize(15);
        sp1.setOrientation(javax.swing.JSplitPane.VERTICAL_SPLIT);
        sp1.setResizeWeight(1.0);
        sp1.setOneTouchExpandable(true);
        sp1.setTopComponent(p1);
        sp1.setBottomComponent(p2);

        sp1.setUI(new BasicSplitPaneUI() {
            public BasicSplitPaneDivider createDefaultDivider() {
                return new BasicSplitPaneDivider(this) {

                    public void setBasicSplitPaneUI(BasicSplitPaneUI newUI)
{
                        super.setBasicSplitPaneUI(newUI);

                        leftButton.setEnabled(false);

                        leftButton.addActionListener(new ActionListener() {
                            public void actionPerformed(ActionEvent e) {
                                if (!leftButton.isEnabled())
                                    return;
                                leftButton.setEnabled(false);
                            }
                        });

                        rightButton.addActionListener(new ActionListener() {
                            public void actionPerformed(ActionEvent e) {
                                leftButton.setEnabled(true);
                            }
                        });

                        splitPane.removePropertyChangeListener(this);
                        if (mouseHandler != null) {
                            splitPane.removeMouseListener(mouseHandler);
                            splitPane.removeMouseMotionListener(mouseHandler);
                            removeMouseListener(mouseHandler);
                            removeMouseMotionListener(mouseHandler);
                        }
                        setCursor(java.awt.Cursor.getPredefinedCursor(
                                            java.awt.Cursor.DEFAULT_CURSOR));
                    }
                };
            }
        });

        c.add(sp1);
        f.pack();
        f.setVisible(true);
    }
}