From f613d730cbdad45947410dc45a50b76a415329fd Mon Sep 17 00:00:00 2001
From: artdeell <ultramaksim@gmail.com>
Date: Wed, 19 Jun 2024 17:45:51 +0300
Subject: [PATCH] Workaround[mouse]: Improve the workaround

---
 .../net/kdt/pojavlaunch/MainActivity.java     | 23 ++++++++++++++++---
 .../kdt/pojavlaunch/MinecraftGLSurface.java   | 17 --------------
 2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MainActivity.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MainActivity.java
index 3221abcbc2..4909197dbe 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MainActivity.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MainActivity.java
@@ -25,6 +25,7 @@
 import android.os.IBinder;
 import android.provider.DocumentsContract;
 import android.util.Log;
+import android.view.InputDevice;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
@@ -38,6 +39,7 @@
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
 import androidx.core.content.ContextCompat;
 import androidx.drawerlayout.widget.DrawerLayout;
 
@@ -630,10 +632,25 @@ public void onServiceDisconnected(ComponentName name) {
 
     }
 
+    /*
+     * Android 14 (or some devices, at least) seems to dispatch the the captured mouse events as trackball events
+     * due to a bug(?) somewhere(????)
+     */
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    private boolean checkCaptureDispatchConditions(MotionEvent event) {
+        int eventSource = event.getSource();
+        // On my device, the mouse sends events as a relative mouse device.
+        // Not comparing with == here because apparently `eventSource` is a mask that can
+        // sometimes indicate multiple sources, like in the case of InputDevice.SOURCE_TOUCHPAD
+        // (which is *also* an InputDevice.SOURCE_MOUSE when controlling a cursor)
+        return (eventSource & InputDevice.SOURCE_MOUSE_RELATIVE) != 0 ||
+                (eventSource & InputDevice.SOURCE_MOUSE) != 0;
+    }
+
     @Override
     public boolean dispatchTrackballEvent(MotionEvent ev) {
-        // Android 14: route trackball events directly to the MinecraftGLSurface
-        if(minecraftGLView != null) return minecraftGLView.dispatchTrackballEvent(ev);
-        return super.dispatchTrackballEvent(ev);
+        if(MainActivity.isAndroid8OrHigher() && checkCaptureDispatchConditions(ev))
+            return minecraftGLView.dispatchCapturedPointerEvent(ev);
+        else return super.dispatchTrackballEvent(ev);
     }
 }
diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MinecraftGLSurface.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MinecraftGLSurface.java
index 8e7b3a67c6..7ea6225126 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MinecraftGLSurface.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/MinecraftGLSurface.java
@@ -79,7 +79,6 @@ public class MinecraftGLSurface extends View implements GrabListener {
     private final InGUIEventProcessor mInGUIProcessor = new InGUIEventProcessor(mScaleFactor);
     private TouchEventProcessor mCurrentTouchProcessor = mInGUIProcessor;
     private AndroidPointerCapture mPointerCapture;
-    private boolean mCaptureEngaged;
     private boolean mLastGrabState = false;
 
     public MinecraftGLSurface(Context context) {
@@ -408,20 +407,4 @@ public void setSurfaceReadyListener(SurfaceReadyListener listener){
             mSurfaceReadyListenerLock.notifyAll();
         }
     }
-
-    @Override
-    public void onPointerCaptureChange(boolean hasCapture) {
-        mCaptureEngaged = hasCapture;
-        super.onPointerCaptureChange(hasCapture);
-    }
-
-    @Override
-    public boolean dispatchTrackballEvent(MotionEvent event) {
-        // Android 14 has broke the pointer capture, which causes the OS to route the captured pointer events to trackball-related methods.
-        // Correct this by sending trackball events as captured pointer events when the pointer is captured.
-        if(mCaptureEngaged && mPointerCapture != null && MainActivity.isAndroid8OrHigher()) {
-            return mPointerCapture.onCapturedPointer(this, event);
-        }
-        return super.dispatchTrackballEvent(event);
-    }
 }