tap up returns more information

Runtime/gestures/tap.cs

 
 namespace Unity.UIWidgets.gestures {
     public class TapDownDetails {
-        public TapDownDetails(Offset globalPosition = null) {
+        public TapDownDetails(Offset globalPosition = null,
+            Offset localPosition = null,
+            PointerDeviceKind kind = PointerDeviceKind.touch) {
+            this.localPosition = localPosition ?? this.globalPosition;
+            this.kind = kind;
+
+        public readonly Offset localPosition;
+
+        public readonly PointerDeviceKind kind;
-        public TapUpDetails(Offset globalPosition = null) {
+        public TapUpDetails(Offset globalPosition = null,
+            Offset localPosition = null,
+            PointerDeviceKind kind = PointerDeviceKind.touch,
+            int device = 0) {
+            this.localPosition = localPosition ?? this.globalPosition;
+            this.kind = kind;
+            this.device = device;
+        
+        public readonly Offset localPosition;
+
+        public readonly PointerDeviceKind kind;
+
+        public readonly int device;
     }
 
     public delegate void GestureTapUpCallback(TapUpDetails details);
         protected override void handlePrimaryPointer(PointerEvent evt) {
             if (evt is PointerUpEvent) {
                 this._finalPosition = evt.position;
-
+                
-                    this._checkUp();
+                    this._checkUp(evt);
                 }
             }
             else if (evt is PointerCancelEvent) {
             if (pointer == this.primaryPointer) {
                 this._checkDown();
                 this._wonArenaForPrimaryPointer = true;
-                this._checkUp();
+                this._checkUp(null);
             }
         }
 
             }
         }
 
-        void _checkUp() {
+        void _checkUp(PointerEvent evt) {
-                        this.onTapUp(new TapUpDetails(globalPosition: this._finalPosition));
+                        this.onTapUp(new TapUpDetails(globalPosition: this._finalPosition, 
+                            kind: evt?.kind ?? PointerDeviceKind.touch,
+                            device: evt?.device ?? 0));
                         return null;
                     });
                 }