trilium/apps/client/src/widgets/react/RawHtml.tsx

import type { CSSProperties, RefObject } from "preact/compat";

type HTMLElementLike = string | HTMLElement | JQuery<HTMLElement>;

interface RawHtmlProps {
    className?: string;
    html?: HTMLElementLike;
    style?: CSSProperties;
    onClick?: (e: MouseEvent) => void;
}

export default function RawHtml({containerRef, ...props}: RawHtmlProps & { containerRef?: RefObject<HTMLSpanElement>}) {
    return <span ref={containerRef} {...getProps(props)} />;
}

export function RawHtmlBlock({containerRef, ...props}: RawHtmlProps & { containerRef?: RefObject<HTMLDivElement>}) {
    return <div ref={containerRef} {...getProps(props)} />
}

function getProps({ className, html, style, onClick }: RawHtmlProps) {
    return {
        className: className,
        dangerouslySetInnerHTML: getHtml(html ?? ""),
        style,
        onClick
    }
}

export function getHtml(html: string | HTMLElement | JQuery<HTMLElement>) {
    if (typeof html === "object" && "length" in html) {
        html = html[0];
    }

    if (typeof html === "object" && "outerHTML" in html) {
        html = html.outerHTML;
    }

    return {
        __html: html as string
    };
}