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astro/packages/integrations/preact/static-html.js
Matthew Phillips 25a5b9a89a
Revert preact signals support (#4843)
* Revert "Update preact example to match @astrojs/preact ranges (#4840)"

This reverts commit d650a1161a.

* Revert "[ci] format"

This reverts commit e3c78c5b16.

* Revert "Support shared signals in Preact islands (#4763)"

This reverts commit 5e46be5468.
2022-09-22 10:32:42 -04:00

24 lines
756 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, name }) => {
if (!value) return null;
return h('astro-slot', { name, 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;