@Nullable
public static Component getOwner(@Nullable Component c) {
if (c == null) return null;
final Window wnd = SwingUtilities.getWindowAncestor(c);
if (wnd instanceof JWindow) {
final JRootPane root = ((JWindow) wnd).getRootPane();
final JBPopup popup = (JBPopup) root.getClientProperty(JBPopup.KEY);
if (popup == null) return c;
final Component owner = popup.getOwner();
if (owner == null) return c;
return getOwner(owner);
} else {
return c;
}
}
