From 8b9e973834673bd3319711f2d9838608d7e034af Mon Sep 17 00:00:00 2001
From: Mathias-Boulay <mathiasboulay@free.fr>
Date: Sat, 18 Jan 2025 15:50:46 +0100
Subject: [PATCH] hotfix(fullscreen handling): Fix animations not refreshing

---
 .../main/java/net/kdt/pojavlaunch/Tools.java  | 50 ++++++++-----------
 1 file changed, 20 insertions(+), 30 deletions(-)

diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
index a599bb3ef7..0167492123 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
@@ -654,37 +654,27 @@ public static DisplayMetrics getDisplayMetrics(Activity activity) {
     }
 
     public static void setFullscreen(Activity activity, boolean fullscreen) {
-        WindowInsetsControllerCompat windowInsetsController =
-                WindowCompat.getInsetsController(activity.getWindow(), activity.getWindow().getDecorView());
-        if (windowInsetsController == null) {
-            Log.w(APP_NAME, "WindowInsetsController is null, cannot set fullscreen");
-            return;
-        }
-
-        // Configure the behavior of the hidden system bars.
-        windowInsetsController.setSystemBarsBehavior(
-                WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
-        );
-
-        ViewCompat.setOnApplyWindowInsetsListener(
-                activity.getWindow().getDecorView(),
-                (view, windowInsets) -> {
-                    boolean fullscreenImpl = fullscreen;
-                    if (SDK_INT >= Build.VERSION_CODES.N && activity.isInMultiWindowMode())
-                        fullscreenImpl = false;
-
-                    if (fullscreenImpl) {
-                        windowInsetsController.hide(WindowInsetsCompat.Type.systemBars());
-                    } else {
-                        windowInsetsController.show(WindowInsetsCompat.Type.systemBars());
-                    }
-
-                    if(SDK_INT >= Build.VERSION_CODES.R)
-                        activity.getWindow().setDecorFitsSystemWindows(!fullscreenImpl);
-
-                    return ViewCompat.onApplyWindowInsets(view, windowInsets);
-                });
+        final View decorView = activity.getWindow().getDecorView();
+        View.OnSystemUiVisibilityChangeListener visibilityChangeListener = visibility -> {
+            boolean multiWindowMode = SDK_INT >= 24 && activity.isInMultiWindowMode();
+            // When in multi-window mode, asking for fullscreen makes no sense (cause the launcher runs in a window)
+            // So, ignore the fullscreen setting when activity is in multi window mode
+            if(fullscreen && !multiWindowMode){
+                if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
+                    decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                            | View.SYSTEM_UI_FLAG_FULLSCREEN
+                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
+                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+                }
+            }else{
+                decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
+            }
 
+        };
+        decorView.setOnSystemUiVisibilityChangeListener(visibilityChangeListener);
+        visibilityChangeListener.onSystemUiVisibilityChange(decorView.getSystemUiVisibility()); //call it once since the UI state may not change after the call, so the activity wont become fullscreen
     }
 
     public static DisplayMetrics currentDisplayMetrics;