전략편집기 수정

2026-06-14 23:56:27 +09:00
parent 198ebbb3d7
commit 55a517ba1c
5 changed files with 163 additions and 13 deletions
@@ -1281,16 +1281,22 @@ function StrategyEditorCanvasInner({
  updatePreviewRef.current = updateDropPreview;
  const resolveDropFromClientRef = useRef(resolveDropFromClient);
  resolveDropFromClientRef.current = resolveDropFromClient;
+  const lastPreviewAnchorRef = useRef<string | null>(null);

  useEffect(() => {
    if (!needsPointerPaletteDrag()) return;
    return subscribePaletteDrag((ev: PaletteDragEvent) => {
      if (ev.phase === 'move') {
        if (!isOverStrategyBuilder(ev.x, ev.y)) {
-          clearPreviewRef.current();
+          if (lastPreviewAnchorRef.current != null) {
+            lastPreviewAnchorRef.current = null;
+            clearPreviewRef.current();
+          }
          return;
        }
        const { flowPos, anchorId } = resolveDropFromClientRef.current(ev.x, ev.y);
+        if (anchorId === lastPreviewAnchorRef.current) return;
+        lastPreviewAnchorRef.current = anchorId;
        if (anchorId) {
          updatePreviewRef.current(anchorId, flowPos);
        } else {
@@ -1298,6 +1304,9 @@ function StrategyEditorCanvasInner({
        }
        return;
      }
+      if (ev.phase === 'end' || ev.phase === 'cancel') {
+        lastPreviewAnchorRef.current = null;
+      }
      if (ev.phase === 'cancel') {
        clearPreviewRef.current();
      }