private void showJPopupMenu(MouseEvent e) {
try {
if (e.isPopupTrigger() && menu != null) {
if (window == null) {
if (isWindows) {
window = new JDialog((Frame) null);
((JDialog) window).setUndecorated(true);
} else {
window = new JWindow((Frame) null);
}
window.setAlwaysOnTop(true);
Dimension size = menu.getPreferredSize();
Point centerPoint = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();
if (e.getY() > centerPoint.getY()) window.setLocation(e.getX(), e.getY() - size.height);
else window.setLocation(e.getX(), e.getY());
window.setVisible(true);
menu.show(((RootPaneContainer) window).getContentPane(), 0, 0);
// popup works only for focused windows
window.toFront();
}
}
} catch (Exception ignored) {
}
}
private static void setAlwaysOnTop(@NotNull Window window, boolean value) {
if (value != window.isAlwaysOnTop()) {
try {
window.setAlwaysOnTop(value);
} catch (Exception ignored) {
}
}
}