astro/packages/integrations/preact/static-html.js
Fred K. Schott 6386c14d00
Astro Integration System (#2820)
* update examples

* add initial integrations

* update tests

* update astro

* update ci

* get final tests working

* update injectelement todo

* update ben code review

* respond to final code review feedback
2022-03-18 15:35:45 -07:00

24 lines
748 B
JavaScript

import { h } from 'preact';
/**
* Astro passes `children` as a string of HTML, so we need
* a wrapper `div` to render that content as VNodes.
*
* As a bonus, we can signal to Preact that this subtree is
* entirely static and will never change via `shouldComponentUpdate`.
*/
const StaticHtml = ({ value }) => {
if (!value) return null;
return h('astro-fragment', { dangerouslySetInnerHTML: { __html: value } });
};
/**
* This tells Preact to opt-out of re-rendering this subtree,
* In addition to being a performance optimization,
* this also allows other frameworks to attach to `children`.
*
* See https://preactjs.com/guide/v8/external-dom-mutations
*/
StaticHtml.shouldComponentUpdate = () => false;
export default StaticHtml;