listenGoToMenuButtonAndRequestFullscreen method

void listenGoToMenuButtonAndRequestFullscreen ()

Listens to the 'Go To Menu Button' which directs the user to the main page and requests the fullscreen on the mobile device. Will be called only if the 'messageWelcomeScreenOnMobile' was called before.

Implementation 

void listenGoToMenuButtonAndRequestFullscreen() {
  querySelector("#button_to_menu").onClick.listen((MouseEvent e) {
    this.showLevelOverview();
    try {
      document.body.requestFullscreen();
      window.screen.orientation.lock("portrait-primary");
    } catch (e) {
      print("You better use Chrome ;)");
    }
    context.callMethod("requestiOSGyro");
  });
}