90 lines
2.4 KiB
TypeScript
90 lines
2.4 KiB
TypeScript
import createEmotionServer from "@emotion/server/create-instance";
|
|
import { AppType } from "next/app";
|
|
import Document, {
|
|
DocumentContext,
|
|
DocumentProps,
|
|
Head,
|
|
Html,
|
|
Main,
|
|
NextScript,
|
|
} from "next/document";
|
|
import createEmotionCache from "../lib/createEmotionCache";
|
|
import { MyAppProps } from "./_app";
|
|
|
|
interface MyDocumentProps extends DocumentProps {
|
|
emotionStyleTags: JSX.Element[];
|
|
}
|
|
|
|
export default function MyDocument({ emotionStyleTags }: MyDocumentProps) {
|
|
return (
|
|
<Html lang="en">
|
|
<Head>{emotionStyleTags}</Head>
|
|
<body>
|
|
<Main />
|
|
<NextScript />
|
|
</body>
|
|
</Html>
|
|
);
|
|
}
|
|
|
|
// `getInitialProps` belongs to `_document` (instead of `_app`),
|
|
// it's compatible with static-site generation (SSG).
|
|
MyDocument.getInitialProps = async (ctx: DocumentContext) => {
|
|
// Resolution order
|
|
//
|
|
// On the server:
|
|
// 1. app.getInitialProps
|
|
// 2. page.getInitialProps
|
|
// 3. document.getInitialProps
|
|
// 4. app.render
|
|
// 5. page.render
|
|
// 6. document.render
|
|
//
|
|
// On the server with error:
|
|
// 1. document.getInitialProps
|
|
// 2. app.render
|
|
// 3. page.render
|
|
// 4. document.render
|
|
//
|
|
// On the client
|
|
// 1. app.getInitialProps
|
|
// 2. page.getInitialProps
|
|
// 3. app.render
|
|
// 4. page.render
|
|
|
|
const originalRenderPage = ctx.renderPage;
|
|
|
|
// You can consider sharing the same Emotion cache between all the SSR requests to speed up performance.
|
|
// However, be aware that it can have global side effects.
|
|
const cache = createEmotionCache();
|
|
const { extractCriticalToChunks } = createEmotionServer(cache);
|
|
|
|
ctx.renderPage = () =>
|
|
originalRenderPage({
|
|
enhanceApp: (
|
|
App: React.ComponentType<React.ComponentProps<AppType> & MyAppProps>,
|
|
) =>
|
|
function EnhanceApp(props) {
|
|
return <App emotionCache={cache} {...props} />;
|
|
},
|
|
});
|
|
|
|
const initialProps = await Document.getInitialProps(ctx);
|
|
// This is important. It prevents Emotion to render invalid HTML.
|
|
// See https://github.com/mui/material-ui/issues/26561#issuecomment-855286153
|
|
const emotionStyles = extractCriticalToChunks(initialProps.html);
|
|
const emotionStyleTags = emotionStyles.styles.map((style) => (
|
|
<style
|
|
data-emotion={`${style.key} ${style.ids.join(" ")}`}
|
|
key={style.key}
|
|
// eslint-disable-next-line react/no-danger
|
|
dangerouslySetInnerHTML={{ __html: style.css }}
|
|
/>
|
|
));
|
|
|
|
return {
|
|
...initialProps,
|
|
emotionStyleTags,
|
|
};
|
|
};
|