function CollapseWrapper()

in beta/src/components/Layout/Sidebar/SidebarRouteTree.tsx [20:70]

• 47 lines of code
• 6 McCabe index (conditional complexity)

function CollapseWrapper({
  isExpanded,
  duration,
  children,
}: {
  isExpanded: boolean;
  duration: number;
  children: any;
}) {
  const ref = React.useRef<HTMLDivElement | null>(null);
  const timeoutRef = React.useRef<number | null>(null);
  const {getCollapseProps} = useCollapse({
    isExpanded,
    duration,
  });

  // Disable pointer events while animating.
  const isExpandedRef = React.useRef(isExpanded);
  if (typeof window !== 'undefined') {
    // eslint-disable-next-line react-hooks/rules-of-hooks
    useLayoutEffect(() => {
      const wasExpanded = isExpandedRef.current;
      if (wasExpanded === isExpanded) {
        return;
      }
      isExpandedRef.current = isExpanded;
      if (ref.current !== null) {
        const node: HTMLDivElement = ref.current;
        node.style.pointerEvents = 'none';
        if (timeoutRef.current !== null) {
          window.clearTimeout(timeoutRef.current);
        }
        timeoutRef.current = window.setTimeout(() => {
          node.style.pointerEvents = '';
        }, duration + 100);
      }
    });
  }

  return (
    <div
      ref={ref}
      style={{
        opacity: isExpanded ? 1 : 0.5,
        transition: `opacity ${duration}ms ease-in-out`,
        animation: `nav-fadein ${duration}ms ease-in-out`,
      }}>
      <div {...getCollapseProps()}>{children}</div>
    </div>
  );
}