next.js/examples/cms-sitecore-xmcloud/src/components/Container.tsx

import React from "react";
import {
  ComponentParams,
  ComponentRendering,
  Placeholder,
  useSitecoreContext,
} from "@sitecore-jss/sitecore-jss-nextjs";

const BACKGROUND_REG_EXP = new RegExp(
  /[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/gi,
);

interface ComponentProps {
  rendering: ComponentRendering & { params: ComponentParams };
  params: ComponentParams;
}

const DefaultContainer = (props: ComponentProps): JSX.Element => {
  const { sitecoreContext } = useSitecoreContext();
  const containerStyles =
    props.params && props.params.Styles ? props.params.Styles : "";
  const styles = `${props.params.GridParameters} ${containerStyles}`.trimEnd();
  const phKey = `container-${props.params.DynamicPlaceholderId}`;
  const id = props.params.RenderingIdentifier;
  let backgroundImage = props.params.BackgroundImage as string;
  let backgroundStyle: { [key: string]: string } = {};

  if (backgroundImage) {
    const prefix = `${
      sitecoreContext.pageState !== "normal" ? "/sitecore/shell" : ""
    }/-/media/`;
    backgroundImage = `${backgroundImage
      ?.match(BACKGROUND_REG_EXP)
      ?.pop()
      ?.replace(/-/gi, "")}`;
    backgroundStyle = {
      backgroundImage: `url('${prefix}${backgroundImage}')`,
    };
  }

  return (
    <div
      className={`component container-default ${styles}`}
      id={id ? id : undefined}
    >
      <div className="component-content" style={backgroundStyle}>
        <div className="row">
          <Placeholder name={phKey} rendering={props.rendering} />
        </div>
      </div>
    </div>
  );
};

export const Default = (props: ComponentProps): JSX.Element => {
  const splitStyles = props.params?.Styles?.split(" ");

  if (splitStyles && splitStyles.includes("container")) {
    return (
      <div className="container-wrapper">
        <DefaultContainer {...props} />
      </div>
    );
  }

  return <DefaultContainer {...props} />;
};