Function onScroll

lib/core/useVirtualizer.ts:175–200

()

    }

    const onScroll = () => {
      setIndices((prev) => {
        const { scrollLeft, scrollTop } = containerElement;

        const scrollOffset = adjustScrollOffsetForRtl({
          containerElement,
          direction,
          isRtl,
          scrollOffset: direction === "vertical" ? scrollTop : scrollLeft
        });

        const next = getStartStopIndicesUtil({
          cachedBounds,
          containerScrollOffset: scrollOffset,
          containerSize,
          itemCount,
          overscanCount
        });

        if (shallowCompare(next, prev)) {
          return prev;
        }

        return next;
      });
    };

    containerElement.addEventListener("scroll", onScroll);