added dialog informing browser tab closing

SimklUserFunctions.go

@@ -52,7 +52,7 @@ func (a *App) SimklLogin() {
 
 			serverDone := &sync.WaitGroup{}
 			serverDone.Add(1)
-			handleSimklCallback(serverDone)
+			a.handleSimklCallback(serverDone)
 			serverDone.Wait()
 		} else {
 			simklJwt.TokenType = string(tokenType.Data)
@@ -62,7 +62,7 @@ func (a *App) SimklLogin() {
 	}
 }
 
-func handleSimklCallback(wg *sync.WaitGroup) {
+func (a *App) handleSimklCallback(wg *sync.WaitGroup) {
 	mux := http.NewServeMux()
 	srv := &http.Server{Addr: ":6734", Handler: mux}
 	mux.HandleFunc("/callback", func(w http.ResponseWriter, r *http.Request) {
@@ -88,9 +88,16 @@ func handleSimklCallback(wg *sync.WaitGroup) {
 				Key:  "SimklScope",
 				Data: []byte(simklJwt.Scope),
 			})
+			_, err := runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+				Title:   "Simkl Authorization",
+				Message: "It is now safe to close your browser tab",
+			})
+			if err != nil {
+				log.Println(err)
+			}
 			fmt.Println("Shutting down...")
 			simklCancel()
-			err := srv.Shutdown(context.Background())
+			err = srv.Shutdown(context.Background())
 			if err != nil {
 				log.Println("server.Shutdown:", err)
 			}