Perplexica/ui/components/Markdown/renderer/listItem.tsx

import { css, cx } from "@emotion/css";
import type { ListItem, Node } from "@yozora/ast";
import React from "react";
import { astClasses } from "../context";
import { NodesRenderer } from "../NodesRenderer";

/**
 * Render `listItem`.
 *
 * @see https://www.npmjs.com/package/@yozora/ast#listitem
 * @see https://www.npmjs.com/package/@yozora/tokenizer-list-item
 */
export class ListItemRenderer extends React.Component<ListItem> {
  public override shouldComponentUpdate(nextProperties: Readonly<ListItem>): boolean {
    const properties = this.props;
    return properties.children !== nextProperties.children;
  }

  public override render(): React.ReactElement {
    const childNodes: Node[] = this.props.children;
    return (
      <li className={cls}>
        <NodesRenderer nodes={childNodes} />
      </li>
    );
  }
}

const cls = cx(
  astClasses.listItem,
  css({
    position: "relative",
    padding: 0,
    margin: 0,
    "> :last-child": {
      marginBottom: 0,
    },
  }),
);