fix drag* events

packages/html/src/web_sys_bind/events.rs

@@ -4,6 +4,7 @@ use crate::events::{
 };
 use crate::geometry::{ClientPoint, Coordinates, ElementPoint, PagePoint, ScreenPoint};
 use crate::input_data::{decode_key_location, decode_mouse_button_set, MouseButton};
+use crate::DragData;
 use keyboard_types::{Code, Key, Modifiers};
 use std::convert::TryInto;
 use std::str::FromStr;
@@ -40,6 +41,7 @@ uncheck_convert![
     CompositionEvent => CompositionData,
     KeyboardEvent    => KeyboardData,
     MouseEvent       => MouseData,
+    MouseEvent       => DragData,
     TouchEvent       => TouchData,
     PointerEvent     => PointerData,
     WheelEvent       => WheelData,
@@ -117,6 +119,14 @@ impl From<&MouseEvent> for MouseData {
     }
 }
 
+impl From<&MouseEvent> for DragData {
+    fn from(value: &MouseEvent) -> Self {
+        Self {
+            mouse: MouseData::from(value),
+        }
+    }
+}
+
 impl From<&TouchEvent> for TouchData {
     fn from(e: &TouchEvent) -> Self {
         Self {