데스크탑 앱 전략편집기 수정

frontend/src/utils/pointerDrag.ts

@@ -48,21 +48,26 @@ export interface BindWindowDragOptions {
  */
 export function bindWindowDrag(
   onMove: (xy: ClientXY, ev: Event) => void,
-  onEnd: () => void,
+  onEnd: (xy: ClientXY, ev: Event) => void,
   options: BindWindowDragOptions = {},
 ): () => void {
   const { preventTouchScroll = true } = options;
+  let lastXY: ClientXY = { x: 0, y: 0 };
 
   const move = (ev: Event) => {
     const xy = clientXYFromNative(ev);
     if (!xy) return;
+    lastXY = xy;
     if (preventTouchScroll && ev.cancelable && (ev instanceof TouchEvent || ev.type === 'touchmove')) {
       ev.preventDefault();
     }
     onMove(xy, ev);
   };
 
-  const end = () => onEnd();
+  const end = (ev: Event) => {
+    const xy = clientXYFromNative(ev) ?? lastXY;
+    onEnd(xy, ev);
+  };
 
   window.addEventListener('pointermove', move);
   window.addEventListener('pointerup', end);