Provide GameState updates to GameManager on Android 13

app/src/main/java/com/limelight/Game.java

@@ -516,6 +516,9 @@ public class Game extends Activity implements SurfaceHolder.Callback,
 
                 performanceOverlayView.setVisibility(View.GONE);
                 notificationOverlayView.setVisibility(View.GONE);
+
+                // Update GameManager state to indicate we're in PiP (still gaming, but interruptible)
+                UiHelper.notifyStreamEnteringPiP(this);
             }
             else {
                 isHidingOverlays = false;
@@ -531,6 +534,9 @@ public class Game extends Activity implements SurfaceHolder.Callback,
                 }
 
                 notificationOverlayView.setVisibility(requestedNotificationOverlayVisibility);
+
+                // Update GameManager state to indicate we're out of PiP (gaming, non-interruptible)
+                UiHelper.notifyStreamExitingPiP(this);
             }
         }
     }
@@ -1600,6 +1606,9 @@ public class Game extends Activity implements SurfaceHolder.Callback,
 
             controllerHandler.stop();
 
+            // Update GameManager state to indicate we're no longer in game
+            UiHelper.notifyStreamEnded(this);
+
             // Stop may take a few hundred ms to do some network I/O to tell
             // the server we're going away and clean up. Let it run in a separate
             // thread to keep things smooth for the UI. Inside moonlight-common,
@@ -1780,6 +1789,9 @@ public class Game extends Activity implements SurfaceHolder.Callback,
                 // Keep the display on
                 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 
+                // Update GameManager state to indicate we're in game
+                UiHelper.notifyStreamConnected(Game.this);
+
                 hideSystemUi(1000);
             }
         });
@@ -1829,6 +1841,9 @@ public class Game extends Activity implements SurfaceHolder.Callback,
         if (!attemptedConnection) {
             attemptedConnection = true;
 
+            // Update GameManager state to indicate we're "loading" while connecting
+            UiHelper.notifyStreamConnecting(Game.this);
+
             decoderRenderer.setRenderTarget(holder);
             conn.start(PlatformBinding.getAudioRenderer(), decoderRenderer, Game.this);
         }

app/src/main/java/com/limelight/utils/UiHelper.java

@@ -2,6 +2,8 @@ package com.limelight.utils;
 
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.app.GameManager;
+import android.app.GameState;
 import android.app.UiModeManager;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -13,6 +15,7 @@ import android.view.View;
 import android.view.WindowInsets;
 import android.view.WindowManager;
 
+import com.limelight.Game;
 import com.limelight.R;
 import com.limelight.nvstream.http.ComputerDetails;
 import com.limelight.preferences.PreferenceConfiguration;
@@ -24,6 +27,39 @@ public class UiHelper {
     private static final int TV_VERTICAL_PADDING_DP = 15;
     private static final int TV_HORIZONTAL_PADDING_DP = 15;
 
+    private static void setGameModeStatus(Context context, boolean streaming, boolean loading, boolean interruptible) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            GameManager gameManager = context.getSystemService(GameManager.class);
+
+            if (streaming) {
+                gameManager.setGameState(new GameState(loading, interruptible ? GameState.MODE_GAMEPLAY_INTERRUPTIBLE : GameState.MODE_GAMEPLAY_UNINTERRUPTIBLE));
+            }
+            else {
+                gameManager.setGameState(new GameState(loading, GameState.MODE_NONE));
+            }
+        }
+    }
+
+    public static void notifyStreamConnecting(Context context) {
+        setGameModeStatus(context, true, true, true);
+    }
+
+    public static void notifyStreamConnected(Context context) {
+        setGameModeStatus(context, true, false, false);
+    }
+
+    public static void notifyStreamEnteringPiP(Context context) {
+        setGameModeStatus(context, true, false, true);
+    }
+
+    public static void notifyStreamExitingPiP(Context context) {
+        setGameModeStatus(context, true, false, false);
+    }
+
+    public static void notifyStreamEnded(Context context) {
+        setGameModeStatus(context, false, false, false);
+    }
+
     public static void setLocale(Activity activity)
     {
         String locale = PreferenceConfiguration.readPreferences(activity).language;
@@ -68,6 +104,9 @@ public class UiHelper {
         View rootView = activity.findViewById(android.R.id.content);
         UiModeManager modeMgr = (UiModeManager) activity.getSystemService(Context.UI_MODE_SERVICE);
 
+        // Set GameState.MODE_NONE initially for all activities
+        setGameModeStatus(activity, false, false, false);
+
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
             // Allow this non-streaming activity to layout under notches.
             //