static void disposeWindowAfter_unlessMouseInIt(final double seconds, final Component c) {
  if (seconds <= 0) ret;
  thread "Dispose window" {
    sleepSeconds(seconds);
    while (mouseInWindow(c)) // TODO: check if other windows are on top
      sleepSeconds(1);
    disposeWindow(c);
  }
}

static void disposeWindowAfter_unlessMouseInIt(Component c, double seconds) {
  disposeWindowAfter_unlessMouseInIt(seconds, c);
}