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material-ui/pages/_document.js /
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import React from 'react'; | |
import Document, { Head, Main, NextScript } from 'next/document'; | |
import getPageContext from 'docs/src/modules/styles/getPageContext'; | |
import config from 'docs/src/config'; | |
// You can find a benchmark of the available CSS minifiers under | |
// https://github.com/GoalSmashers/css-minification-benchmark | |
// We have found that clean-css is faster than cssnano but the output is larger. | |
// Waiting for https://github.com/cssinjs/jss/issues/279 | |
// 4% slower but 12% smaller output than doing it in a single step. | |
// | |
// It's using .browserslistrc | |
let prefixer; | |
let cleanCSS; | |
if (process.env.NODE_ENV === 'production') { | |
const postcss = require('postcss'); | |
const autoprefixer = require('autoprefixer'); | |
const CleanCSS = require('clean-css'); | |
prefixer = postcss([autoprefixer]); | |
cleanCSS = new CleanCSS(); | |
} | |
class MyDocument extends Document { | |
render() { | |
const { canonical, pageContext } = this.props; | |
return ( | |
<html lang="en" dir="ltr"> | |
<Head> | |
{/* Use minimum-scale=1 to enable GPU rasterization */} | |
<meta | |
name="viewport" | |
content="minimum-scale=1, initial-scale=1, width=device-width, shrink-to-fit=no" | |
/> | |
{/* | |
manifest.json provides metadata used when your web app is added to the | |
homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/ | |
*/} | |
<link rel="manifest" href="/static/manifest.json" /> | |
{/* PWA primary color */} | |
<meta name="theme-color" content={pageContext.theme.palette.primary.main} /> | |
<link rel="shortcut icon" href="/static/favicon.ico" /> | |
<link rel="canonical" href={canonical} /> | |
<link | |
rel="stylesheet" | |
href="https://fonts.googleapis.com/css?family=Roboto:300,400,500" | |
/> | |
{/* | |
Preconnect allows the browser to setup early connections before an HTTP request | |
is actually sent to the server. | |
This includes DNS lookups, TLS negotiations, TCP handshakes. | |
*/} | |
<link href="https://fonts.gstatic.com" rel="preconnect" crossOrigin="anonymous" /> | |
<style id="insertion-point-jss" /> | |
</Head> | |
<body> | |
<Main /> | |
{/* Global Site Tag (gtag.js) - Google Analytics */} | |
<script async src="https://www.google-analytics.com/analytics.js" /> | |
<script | |
// eslint-disable-next-line react/no-danger | |
dangerouslySetInnerHTML={{ | |
__html: ` | |
window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; | |
ga('create', '${config.google.id}', 'material-ui.com'); | |
`, | |
}} | |
/> | |
<NextScript /> | |
<script async src="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.js" /> | |
</body> | |
</html> | |
); | |
} | |
} | |
MyDocument.getInitialProps = async ctx => { | |
// Resolution order | |
// | |
// On the server: | |
// 1. page.getInitialProps | |
// 2. document.getInitialProps | |
// 3. page.render | |
// 4. document.render | |
// | |
// On the server with error: | |
// 2. document.getInitialProps | |
// 3. page.render | |
// 4. document.render | |
// | |
// On the client | |
// 1. page.getInitialProps | |
// 3. page.render | |
// Get the context of the page to collected side effects. | |
const pageContext = getPageContext(); | |
const page = ctx.renderPage(Component => props => ( | |
<Component pageContext={pageContext} {...props} /> | |
)); | |
let css = pageContext.sheetsRegistry.toString(); | |
if (process.env.NODE_ENV === 'production') { | |
const result1 = await prefixer.process(css, { from: undefined }); | |
css = result1.css; | |
css = cleanCSS.minify(css).styles; | |
} | |
return { | |
...page, | |
pageContext, | |
canonical: `https://material-ui.com${ctx.req.url.replace(/\/$/, '')}/`, | |
styles: ( | |
<style | |
id="jss-server-side" | |
// eslint-disable-next-line react/no-danger | |
dangerouslySetInnerHTML={{ __html: css }} | |
/> | |
), | |
}; | |
}; | |
export default MyDocument; |