Description Andreu B 2020-09-03 05:06:12 EDT

Created attachment 284029 [details]
video of the observed behavior

1 - Run the snippet below.
2 - Select one of the radio buttons.
3 - Switch to some other window (Alt+Tab) then switch again to the first window.
4 - Notice how the button you selected now has an orange outline.
5 - Select another button. The button you selected first still retains the outline.
6 - Repeat step 3. Observe step 4 again (the last button you selected now has the outline).

Expected behavior:
Ideally no outline would be shown. If this is not possible, second best would be that at least the outlined button is always the selected one, i.e. the outline follows the selection as you select different buttons.

Attached GIF showing the issue.

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import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class App {

    public static void main(String[] argv) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setLayout(new GridLayout());

        new Button(shell, SWT.RADIO).setText("Option 1");
        new Button(shell, SWT.RADIO).setText("Option 2");
        new Button(shell, SWT.RADIO).setText("Option 3");

        shell.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }

        display.dispose();
    }
}