add touch data to touch events

packages/html/src/events/pointer.rs

@@ -198,15 +198,17 @@ impl InteractionLocation for PointerData {
         self.inner.screen_coordinates()
     }
 
-    fn element_coordinates(&self) -> ElementPoint {
-        self.inner.element_coordinates()
-    }
-
     fn page_coordinates(&self) -> PagePoint {
         self.inner.page_coordinates()
     }
 }
 
+impl InteractionElementOffset for PointerData {
+    fn element_coordinates(&self) -> ElementPoint {
+        self.inner.element_coordinates()
+    }
+}
+
 impl ModifiersInteraction for PointerData {
     fn modifiers(&self) -> Modifiers {
         self.inner.modifiers()
@@ -319,15 +321,18 @@ impl InteractionLocation for SerializedPointerData {
         self.point_data.screen_coordinates()
     }
 
-    fn element_coordinates(&self) -> ElementPoint {
-        self.point_data.element_coordinates()
-    }
-
     fn page_coordinates(&self) -> PagePoint {
         self.point_data.page_coordinates()
     }
 }
 
+#[cfg(feature = "serialize")]
+impl InteractionElementOffset for SerializedPointerData {
+    fn element_coordinates(&self) -> ElementPoint {
+        self.point_data.element_coordinates()
+    }
+}
+
 #[cfg(feature = "serialize")]
 impl ModifiersInteraction for SerializedPointerData {
     fn modifiers(&self) -> Modifiers {