MenuBar issue (custom decorations, JetBrains Runtime 11)

[remcopoelstra]

In my application menu's are added and removed dynamically, while implementing the FlatDarculaLaf with custom (native) decorations using jbr-11_0_7 I noticed a strange issue. When adding a menu after the frame was minimized/restored the new menu doesn't respond to mouse move/clicks.

Maybe this is a bug in the JetBrains Runtime or perhaps I am not using the correct method for revalidating the MenuBar but I decided to write a small application demonstrating this behavior.

I am using release 0.39 and a HiDPI display scaled at 200%.

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

import com.formdev.flatlaf.FlatDarculaLaf;

public class MenuTest {

	enum State {
		FRAME_SHOWN,
		MENU_REMOVED,
		FRAME_MINIMIZED,
		FRAME_RESTORED,
		MENU_ADDED,
		DONE
	}
	State state = State.FRAME_SHOWN;
	Timer timer;


	public MenuTest() {

		try {
			UIManager.setLookAndFeel(new FlatDarculaLaf());
			JFrame.setDefaultLookAndFeelDecorated(true);
			JDialog.setDefaultLookAndFeelDecorated(true);
		} catch (UnsupportedLookAndFeelException e) {
			e.printStackTrace();
		}

		JFrame frame = new JFrame("JFrame");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setSize(850, 650);

		JMenuBar menuBar = new JMenuBar();
		frame.setJMenuBar(menuBar);

		JMenu firstMenu = new JMenu("File");
		firstMenu.add(new JMenuItem("Exit"));
		menuBar.add(firstMenu);

		JMenu secondMenu = new JMenu("Help");
		secondMenu.add(new JMenuItem("About"));
		menuBar.add(secondMenu);

		frame.setLocationRelativeTo(null);
		frame.setVisible(true);

		timer = new Timer(1000, new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {

				switch (state) {
				case FRAME_SHOWN:

					menuBar.remove(1);
					menuBar.revalidate();
					menuBar.repaint();

					state = State.MENU_REMOVED;
					break;

				case MENU_REMOVED:
					frame.setExtendedState(JFrame.ICONIFIED);
					state = State.FRAME_MINIMIZED;
					break;

				case FRAME_MINIMIZED:
					frame.setExtendedState(JFrame.NORMAL);
					state = State.FRAME_RESTORED;
					break;

				case FRAME_RESTORED:

					JMenu secondMenu = new JMenu("Help");
					secondMenu.add(new JMenuItem("About"));
					menuBar.add(secondMenu);

					menuBar.revalidate();
					menuBar.repaint();

					state = State.MENU_ADDED;
					break;

				case MENU_ADDED:
					timer.stop();
					state = State.DONE;
					break;

				default:
					break;
				}

			}
		});
		timer.setRepeats(true);
		timer.start();

	}

	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {

			@Override
			public void run() {
				new MenuTest();
			}
		});
	}

}

[DevCharly]

Thx for reporting. This is a bug in FlatLaf, which has to tell the JBR which areas in the title area it should ignore (menubar, buttons and icon). This is probably not done correctly when the menu bar is modified. I'll have a look...

[DevCharly]

fixed in master branch

[remcopoelstra]

Great! I just tested the master branch with my application and I can confirm it's fixed now.

Thanks!