Make registerDevice agnostic to MatSlideToggleChange

apps/client/src/app/components/user-account-settings/user-account-settings.component.ts

@@ -23,7 +23,7 @@ import { MatSlideToggleChange } from '@angular/material/slide-toggle';
 import { MatSnackBar } from '@angular/material/snack-bar';
 import { format, parseISO } from 'date-fns';
 import { uniq } from 'lodash';
-import { EMPTY, Subject } from 'rxjs';
+import { EMPTY, Subject, throwError } from 'rxjs';
 import { catchError, takeUntil } from 'rxjs/operators';
 
 @Component({
@@ -43,7 +43,7 @@ export class UserAccountSettingsComponent implements OnDestroy, OnInit {
   public hasPermissionToUpdateViewMode: boolean;
   public hasPermissionToUpdateUserSettings: boolean;
   public isAccessTokenHidden = true;
-  public isFingerprintSupported: boolean;
+  public isFingerprintSupported = this.doesBrowserSupportAuthn();
   public isWebAuthnEnabled: boolean;
   public language = document.documentElement.lang;
   public locales = [
@@ -69,9 +69,9 @@ export class UserAccountSettingsComponent implements OnDestroy, OnInit {
     private dataService: DataService,
     private formBuilder: FormBuilder,
     private settingsStorageService: SettingsStorageService,
+    private snackBar: MatSnackBar,
     private tokenStorageService: TokenStorageService,
     private userService: UserService,
-    private snackBar: MatSnackBar,
     public webAuthnService: WebAuthnService
   ) {
     const { baseCurrency, currencies } = this.dataService.fetchInfo();
@@ -228,7 +228,10 @@ export class UserAccountSettingsComponent implements OnDestroy, OnInit {
 
   public onSignInWithFingerprintChange(aEvent: MatSlideToggleChange) {
     if (aEvent.checked) {
-      this.registerDevice(aEvent);
+      this.registerDevice().catch(() => {
+        aEvent.source.checked = false;
+        this.changeDetectorRef.markForCheck();
+      });
     } else {
       const confirmation = confirm(
         $localize`Do you really want to remove this sign in method?`
@@ -281,15 +284,13 @@ export class UserAccountSettingsComponent implements OnDestroy, OnInit {
       });
   }
 
-  private registerDevice(aEvent: MatSlideToggleChange) {
+  private registerDevice(): Promise<void> {
+    return new Promise((resolve, reject) => {
       this.webAuthnService
         .register()
         .pipe(
           takeUntil(this.unsubscribeSubject),
           catchError((error: Error) => {
-          aEvent.source.checked = false;
-          this.changeDetectorRef.markForCheck();
-
             let errorMessage: string;
 
             if (
@@ -302,18 +303,23 @@ export class UserAccountSettingsComponent implements OnDestroy, OnInit {
               errorMessage = $localize`Oops! There was an unknown error setting up biometric authentication.`;
             }
 
-          this.snackBar.open(errorMessage, undefined, {
-            duration: 4000
-          });
+            this.snackBar.open(errorMessage, undefined, { duration: 4000 });
 
-          return EMPTY;
+            return throwError(() => error);
           })
         )
-      .subscribe(() => {
+        .subscribe({
+          next: () => {
             this.settingsStorageService.removeSetting(KEY_STAY_SIGNED_IN);
             this.settingsStorageService.removeSetting(KEY_TOKEN);
 
             this.update();
+            resolve();
+          },
+          error: (error) => {
+            reject(error);
+          }
+        });
     });
   }