mirror of
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90 lines
2.5 KiB
TypeScript
90 lines
2.5 KiB
TypeScript
import React from 'react';
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import Document, { Html, Head, Main, NextScript } from 'next/document';
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import { ServerStyleSheets } from '@material-ui/core/styles';
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import theme from '../components/theme';
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import config from "../config/config";
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import CleanCSS from "clean-css"
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const cleanCSS = new CleanCSS({
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level: {
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1: {},
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2: {}
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}
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});
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const minified_css_cache = new Map()
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export default class MyDocument extends Document {
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render() {
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return (
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<Html lang="en">
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<Head>
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{/* PWA primary color */}
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<meta name="theme-color" content={theme.palette.primary.main} />
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<link
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rel="stylesheet"
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href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap"
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/>
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<script defer src={`https://www.google.com/recaptcha/api.js?render=${config.recaptcha_site_key}`}></script>
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</Head>
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<body>
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<Main />
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<NextScript />
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</body>
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</Html>
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);
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}
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}
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// `getInitialProps` belongs to `_document` (instead of `_app`),
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// it's compatible with server-side generation (SSG).
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MyDocument.getInitialProps = async (ctx) => {
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// Resolution order
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//
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// On the server:
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// 1. app.getInitialProps
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// 2. page.getInitialProps
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// 3. document.getInitialProps
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// 4. app.render
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// 5. page.render
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// 6. document.render
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//
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// On the server with error:
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// 1. document.getInitialProps
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// 2. app.render
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// 3. page.render
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// 4. document.render
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//
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// On the client
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// 1. app.getInitialProps
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// 2. page.getInitialProps
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// 3. app.render
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// 4. page.render
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// Render app and page and get the context of the page with collected side effects.
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const sheets = new ServerStyleSheets();
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const originalRenderPage = ctx.renderPage;
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ctx.renderPage = () =>
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originalRenderPage({
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enhanceApp: (App) => (props) => sheets.collect(<App {...props} />),
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});
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const initialProps = await Document.getInitialProps(ctx);
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let css = sheets.toString();
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const min_css = minified_css_cache.get(css)
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if (css) {
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if (min_css) {
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css = min_css
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} else {
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const old_css = css
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css = cleanCSS.minify(css).styles;
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minified_css_cache.set(old_css, css)
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}
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}
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return {
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...initialProps,
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// Styles fragment is rendered after the app and page rendering finish.
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styles: [...React.Children.toArray(initialProps.styles), <style id="jss-server-side" key="jss-server-side" dangerouslySetInnerHTML={{ __html: css }}></style>],
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};
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}; |