Fix mouse not working on TVs

client/android/src/org/amnezia/vpn/AmneziaActivity.kt

@@ -21,6 +21,7 @@ import android.os.Looper
 import android.os.Message
 import android.os.Messenger
 import android.provider.Settings
+import android.view.MotionEvent
 import android.view.WindowManager.LayoutParams
 import android.webkit.MimeTypeMap
 import android.widget.Toast
@@ -720,6 +721,66 @@ class AmneziaActivity : QtActivity() {
         }
     }
 
+    // workaround for a bug in Qt that causes the mouse click event not to be handled
+    // also disable right-click, as it causes the application to crash
+    private var lastButtonState = 0
+    private fun MotionEvent.fixCopy(): MotionEvent = MotionEvent.obtain(
+        downTime,
+        eventTime,
+        action,
+        pointerCount,
+        (0 until pointerCount).map { i ->
+            MotionEvent.PointerProperties().apply {
+                getPointerProperties(i, this)
+            }
+        }.toTypedArray(),
+        (0 until pointerCount).map { i ->
+            MotionEvent.PointerCoords().apply {
+                getPointerCoords(i, this)
+            }
+        }.toTypedArray(),
+        metaState,
+        MotionEvent.BUTTON_PRIMARY,
+        xPrecision,
+        yPrecision,
+        deviceId,
+        edgeFlags,
+        source,
+        flags
+    )
+
+    private fun handleMouseEvent(ev: MotionEvent, superDispatch: (MotionEvent?) -> Boolean): Boolean {
+        when (ev.action) {
+            MotionEvent.ACTION_DOWN -> {
+                lastButtonState = ev.buttonState
+                if (ev.buttonState == MotionEvent.BUTTON_SECONDARY) return true
+            }
+
+            MotionEvent.ACTION_UP -> {
+                when (lastButtonState) {
+                    MotionEvent.BUTTON_SECONDARY -> return true
+                    MotionEvent.BUTTON_PRIMARY -> {
+                        val modEvent = ev.fixCopy()
+                        return superDispatch(modEvent).apply { modEvent.recycle() }
+                    }
+                }
+            }
+        }
+        return superDispatch(ev)
+    }
+
+    override fun dispatchTouchEvent(ev: MotionEvent?): Boolean {
+        if (ev != null && ev.getToolType(0) == MotionEvent.TOOL_TYPE_MOUSE) {
+            return handleMouseEvent(ev) { super.dispatchTouchEvent(it) }
+        }
+        return super.dispatchTouchEvent(ev)
+    }
+
+    override fun dispatchTrackballEvent(ev: MotionEvent?): Boolean {
+        ev?.let { return handleMouseEvent(ev) { super.dispatchTrackballEvent(it) }}
+        return super.dispatchTrackballEvent(ev)
+    }
+
     /**
      * Utils methods
      */