Function getBoxPositionOnWindowCenter

src/ShareButton.tsx:44–47

(width: number, height: number)

  typeof (obj as Promise<unknown>).then === 'function';

const getBoxPositionOnWindowCenter = (width: number, height: number) => ({
  left: window.outerWidth / 2 + (window.screenX || window.screenLeft || 0) - width / 2,
  top: window.outerHeight / 2 + (window.screenY || window.screenTop || 0) - height / 2,
});

const getBoxPositionOnScreenCenter = (width: number, height: number) => ({
  top: (window.screen.height - height) / 2,