authenticateViaPopup method

@override Stream<String> authenticateViaPopup(String url, { String eventName = 'token', String? errorMessage, })

Opens the url in a new window, and returns a Stream that will fire a JWT on successful authentication.

Implementation

@override
Stream<String> authenticateViaPopup(String url,
    {String eventName = 'token', String? errorMessage}) {
  var ctrl = StreamController<String>();
  var wnd = window.open(url, 'angel_client_auth_popup');

  //Timer t;
  //StreamSubscription<Event>? sub;
  Timer.periodic(Duration(milliseconds: 500), (timer) {
    if (!ctrl.isClosed) {
      if (wnd != null && wnd.closed) {
        ctrl.addError(AngelHttpException.notAuthenticated(
            message:
                errorMessage ?? 'Authentication via popup window failed.'));
        ctrl.close();
        timer.cancel();
        //sub?.cancel();
      }
    } else {
      timer.cancel();
    }
  });

  // TODO: This need to be fixed
  EventListener? sub;
  window.addEventListener(
      eventName,
      (e) {
        if (!ctrl.isClosed) {
          ctrl.add((e as CustomEvent).detail.toString());
          //t.cancel();
          ctrl.close();
          //sub?.cancel();
          window.removeEventListener(eventName, sub);
        }
      }.toJS);
  /* With dart:html
  sub = window.on[eventName].listen((e) {
    if (!ctrl.isClosed) {
      ctrl.add((e as CustomEvent).detail.toString());
      t.cancel();
      ctrl.close();
      sub?.cancel();
    }
  });
  */

  return ctrl.stream;
}