var signInResultErrorCallback = function()

in javascript/widgets/handler/common.js [541:602]
50 lines of code
12 McCabe index (conditional complexity)

  var signInResultErrorCallback = function(error) {
    // Clear pending redirect status if redirect on Cordova fails.
    firebaseui.auth.storage.removeRedirectStatus(app.getAppId());
    // Ignore error if cancelled by the client.
    if (error['name'] && error['name'] == 'cancel') {
      return;
    }
    // Normalize the error.
    const normalizedError =
        firebaseui.auth.widget.handler.common.normalizeError(error);
    switch (normalizedError['code']) {
      case 'auth/popup-blocked':
        // Popup blocked, switch to redirect flow as fallback.
         processRedirect();
        break;
      case 'auth/popup-closed-by-user':
      case 'auth/cancelled-popup-request':
        // When popup is closed or when the user clicks another button,
        // do nothing.
        break;
      case 'auth/credential-already-in-use':
        // Do nothing when anonymous user is getting updated.
        // Developer should handle this in signInFailure callback.
        break;
      case 'auth/network-request-failed':
      case 'auth/too-many-requests':
      case 'auth/user-cancelled':
        // For no action errors like network error, just display in info
        // bar in current component. A second attempt could still work.
        component.showInfoBar(
            firebaseui.auth.widget.handler.common.getErrorMessage(
                normalizedError));
        break;
      case 'auth/admin-restricted-operation':
        component.dispose();
        if (app.getConfig().isAdminRestrictedOperationConfigured()) {
          firebaseui.auth.widget.handler.handle(
              firebaseui.auth.widget.HandlerName.UNAUTHORIZED_USER,
              app,
              container,
              null,
              providerId);
        } else {
          firebaseui.auth.widget.handler.handle(
              firebaseui.auth.widget.HandlerName.CALLBACK,
              app,
              container,
              goog.Promise.reject(normalizedError));
        }
        break;
      default:
        // Either linking required errors or errors that are
        // unrecoverable.
        component.dispose();
        firebaseui.auth.widget.handler.handle(
            firebaseui.auth.widget.HandlerName.CALLBACK,
            app,
            container,
            goog.Promise.reject(normalizedError));
        break;
    }
  };