value: function requestSubscription()

in web_tool/js/noty.js [1087:1138]
46 lines of code
13 McCabe index (conditional complexity)

    value: function requestSubscription() {
      var _this2 = this;

      var userVisibleOnly = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

      var self = this;
      var current = this.getPermissionStatus();
      var cb = function cb(result) {
        if (result === 'granted') {
          _this2.fire('onPermissionGranted');

          if ('serviceWorker' in navigator) {
            navigator.serviceWorker.register(_this2.workerPath).then(function () {
              navigator.serviceWorker.ready.then(function (serviceWorkerRegistration) {
                self.fire('onWorkerSuccess');
                serviceWorkerRegistration.pushManager.subscribe({
                  userVisibleOnly: userVisibleOnly
                }).then(function (subscription) {
                  var key = subscription.getKey('p256dh');
                  var token = subscription.getKey('auth');

                  self.subData = {
                    endpoint: self.getEndpoint(subscription),
                    p256dh: key ? window.btoa(String.fromCharCode.apply(null, new Uint8Array(key))) : null,
                    auth: token ? window.btoa(String.fromCharCode.apply(null, new Uint8Array(token))) : null
                  };

                  self.fire('onSubscriptionSuccess', [self.subData]);
                }).catch(function (err) {
                  self.fire('onWorkerError', [err]);
                });
              });
            });
          } else {
            self.fire('onWorkerNotSupported');
          }
        } else if (result === 'denied') {
          _this2.fire('onPermissionDenied');
          _this2.unregisterWorker();
        }
      };

      if (current === 'default') {
        if (window.Notification && window.Notification.requestPermission) {
          window.Notification.requestPermission(cb);
        } else if (window.webkitNotifications && window.webkitNotifications.checkPermission) {
          window.webkitNotifications.requestPermission(cb);
        }
      } else {
        cb(current);
      }
    }