1 files changed, 33 insertions, 0 deletions
diff --git a/packages/integrations/react/src/static-html.ts b/packages/integrations/react/src/static-html.ts
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index 000000000..010896196
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+++ b/packages/integrations/react/src/static-html.ts
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+import { createElement as h } from 'react';
+
+/**
+ * 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 React that this subtree is
+ * entirely static and will never change via `shouldComponentUpdate`.
+ */
+const StaticHtml = ({
+	value,
+	name,
+	hydrate = true,
+}: { value: string | null; name?: string; hydrate?: boolean }) => {
+	if (!value) return null;
+	const tagName = hydrate ? 'astro-slot' : 'astro-static-slot';
+	return h(tagName, {
+		name,
+		suppressHydrationWarning: true,
+		dangerouslySetInnerHTML: { __html: value },
+	});
+};
+
+/**
+ * This tells React 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;