static Rectangle restrictWindowToScreenSize_maxBounds = maxWindowBounds();

svoid restrictWindowToScreenSize(Window window) {
  if (window == null) ret;
  onBoundsChange(window, new Runnable {
    int recursionCounter;
    
    run {
      Rectangle max = restrictWindowToScreenSize_maxBounds;
      Rectangle r = window.getBounds();
      if (r.width > max.width || r.height > max.height) {
        if (recursionCounter != 0)
          ret with warn("restrictWindowToScreenSize recursion");
          
        ++recursionCounter;
        try {
          window.setSize(min(r.width, max.width),
            min(r.height, max.height));
        } finally {
          --recursionCounter;
        }
      }
    }
  });
}