Function onPointerDown

apps/sim/hooks/use-auto-scroll.ts:125–127

(e: PointerEvent)

     * text-selection drag on content can't authorize a detach.
     */
    const onPointerDown = (e: PointerEvent) => {
      if (e.target === el) pointerDownRef.current = true
    }
    const onPointerUp = () => {
      pointerDownRef.current = false
    }