Fix using Playnite to launch Steam game where on exit Desktop was activated

SteamController/Managers/ProfileSwitcher.cs

@@ -0,0 +1,45 @@
+using System.Diagnostics;
+using SteamController.Helpers;
+
+namespace SteamController.Managers
+{
+    public sealed class ProfileSwitcher : Manager
+    {
+        [Flags]
+        private enum ActiveMode
+        {
+            None,
+            SteamInput = 1,
+            SteamX360 = 2,
+            OtherGame = 4
+        }
+
+        private ActiveMode wasActive;
+
+        public override void Tick(Context context)
+        {
+            ActiveMode active = GetActiveMode(context);
+            if (wasActive == active)
+                return;
+
+            if (active != ActiveMode.None)
+                context.SelectController();
+            else
+                context.BackToDefault();
+
+            wasActive = active;
+        }
+
+        private ActiveMode GetActiveMode(Context context)
+        {
+            ActiveMode mode = ActiveMode.None;
+            if (context.SteamUsesSteamInput)
+                mode |= ActiveMode.SteamInput;
+            if (context.SteamUsesX360Controller)
+                mode |= ActiveMode.SteamX360;
+            if (context.GameProcessRunning)
+                mode |= ActiveMode.OtherGame;
+            return mode;
+        }
+    }
+}