InvokeAI/invokeai/frontend/web/src/common/components/NodeSelectionOverlay.tsx

import { Box } from '@chakra-ui/react';
import { memo, useMemo } from 'react';

type Props = {
  isSelected: boolean;
  isHovered: boolean;
};
const SelectionOverlay = ({ isSelected, isHovered }: Props) => {
  const shadow = useMemo(() => {
    if (isSelected && isHovered) {
      return 'nodeHoveredSelected';
    }
    if (isSelected) {
      return 'nodeSelected';
    }
    if (isHovered) {
      return 'nodeHovered';
    }
    return undefined;
  }, [isHovered, isSelected]);
  return (
    <Box
      className="selection-box"
      position="absolute"
      top={0}
      insetInlineEnd={0}
      bottom={0}
      insetInlineStart={0}
      borderRadius="base"
      opacity={isSelected || isHovered ? 1 : 0.5}
      transitionProperty="common"
      transitionDuration="0.1s"
      pointerEvents="none"
      shadow={shadow}
    />
  );
};

export default memo(SelectionOverlay);