Improve code quality

Author: Jack251970

Flow.Launcher/App.xaml.cs

@@ -26,6 +26,7 @@
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.VisualStudio.Threading;
+using Squirrel;
 
 namespace Flow.Launcher
 {
@@ -334,9 +335,27 @@ private static void RegisterTaskSchedulerUnhandledException()
 
         #region Restart
 
+        /// <summary>
+        /// Restart the application without changing the user privileges.
+        /// </summary>
+        public static void RestartApp(bool forceAdmin = false)
+        {
+            if (Win32Helper.IsAdministrator() || forceAdmin)
+            {
+                RestartAppAsAdministrator();
+            }
+            else
+            {
+                // Restart requires Squirrel's Update.exe to be present in the parent folder, 
+                // it is only published from the project's release pipeline. When debugging without it,
+                // the project may not restart or just terminates. This is expected.
+                UpdateManager.RestartApp(Constant.ApplicationFileName);
+            }
+        }
+
         // Since Squirrel does not provide a way to restart the app as administrator,
         // we need to do it manually by starting the update.exe with the runas verb
-        public static void RestartAppAsAdministrator()
+        private static void RestartAppAsAdministrator()
         {
             var startInfo = new ProcessStartInfo
             {

Flow.Launcher/PublicAPIInstance.cs

@@ -31,7 +31,6 @@
 using Flow.Launcher.Plugin.SharedCommands;
 using Flow.Launcher.ViewModel;
 using JetBrains.Annotations;
-using Squirrel;
 using Stopwatch = Flow.Launcher.Infrastructure.Stopwatch;
 
 namespace Flow.Launcher
@@ -85,18 +84,10 @@ public async void RestartApp()
             // Wait for all image caches to be saved before restarting
             await ImageLoader.WaitSaveAsync();
 
-            // If app is run as administrator already, we continue to restart app as administrator
-            if (Win32Helper.IsAdministrator())
-            {
-                App.RestartAppAsAdministrator();
-            }
-            else
-            {
-                // Restart requires Squirrel's Update.exe to be present in the parent folder, 
-                // it is only published from the project's release pipeline. When debugging without it,
-                // the project may not restart or just terminates. This is expected.
-                UpdateManager.RestartApp(Constant.ApplicationFileName);
-            }
+            // Restart requires Squirrel's Update.exe to be present in the parent folder, 
+            // it is only published from the project's release pipeline. When debugging without it,
+            // the project may not restart or just terminates. This is expected.
+            App.RestartApp();
         }
 
         public void ShowMainWindow() => _mainVM.Show();