Function launchFullscreen

src/core/environment.js:920–938

(element)

  fn.displayDensity = () => window.devicePixelRatio;

  function launchFullscreen(element) {
    const enabled =
      document.fullscreenEnabled ||
      document.webkitFullscreenEnabled ||
      document.mozFullScreenEnabled ||
      document.msFullscreenEnabled;
    if (!enabled) {
      throw new Error('Fullscreen not enabled in this browser.');
    }
    if (element.requestFullscreen) {
      element.requestFullscreen();
    } else if (element.mozRequestFullScreen) {
      element.mozRequestFullScreen();
    } else if (element.webkitRequestFullscreen) {
      element.webkitRequestFullscreen();
    } else if (element.msRequestFullscreen) {
      element.msRequestFullscreen();
    }
  }

  function exitFullscreen() {
    if (document.exitFullscreen) {