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next.js/server/document.js
Arunoda Susiripala 311e4ca0ee Make sure the router is aware of the nextExport
Based on the we can change the routing to do SSR always.
Also make sure pageLoader don't download the page via
client side twice.
2017-05-08 18:20:50 -07:00

156 lines
4.2 KiB
JavaScript

import React, { Component } from 'react'
import PropTypes from 'prop-types'
import htmlescape from 'htmlescape'
import flush from 'styled-jsx/server'
export default class Document extends Component {
static getInitialProps ({ renderPage }) {
const { html, head, errorHtml } = renderPage()
const styles = flush()
return { html, head, errorHtml, styles }
}
static childContextTypes = {
_documentProps: PropTypes.any
}
getChildContext () {
return { _documentProps: this.props }
}
render () {
return <html>
<Head />
<body>
<Main />
<NextScript />
</body>
</html>
}
}
export class Head extends Component {
static contextTypes = {
_documentProps: PropTypes.any
}
getChunkPreloadLink (filename) {
const { __NEXT_DATA__ } = this.context._documentProps
let { buildStats, assetPrefix } = __NEXT_DATA__
const hash = buildStats ? buildStats[filename].hash : '-'
return (
<link
key={filename}
rel='preload'
href={`${assetPrefix}/_next/${hash}/${filename}`}
as='script'
/>
)
}
getPreloadMainLinks () {
const { dev } = this.context._documentProps
if (dev) {
return [
this.getChunkPreloadLink('manifest.js'),
this.getChunkPreloadLink('commons.js'),
this.getChunkPreloadLink('main.js')
]
}
// In the production mode, we have a single asset with all the JS content.
return [
this.getChunkPreloadLink('app.js')
]
}
render () {
const { head, styles, __NEXT_DATA__ } = this.context._documentProps
const { realPathname, buildId, assetPrefix } = __NEXT_DATA__
return <head>
<link rel='preload' href={`${assetPrefix}/_next/${buildId}/page${realPathname}`} as='script' />
<link rel='preload' href={`${assetPrefix}/_next/${buildId}/page/_error.js`} as='script' />
{this.getPreloadMainLinks()}
{(head || []).map((h, i) => React.cloneElement(h, { key: i }))}
{styles || null}
{this.props.children}
</head>
}
}
export class Main extends Component {
static contextTypes = {
_documentProps: PropTypes.any
}
render () {
const { html, errorHtml } = this.context._documentProps
return (
<div>
<div id='__next' dangerouslySetInnerHTML={{ __html: html }} />
<div id='__next-error' dangerouslySetInnerHTML={{ __html: errorHtml }} />
</div>
)
}
}
export class NextScript extends Component {
static contextTypes = {
_documentProps: PropTypes.any
}
getChunkScript (filename, additionalProps = {}) {
const { __NEXT_DATA__ } = this.context._documentProps
let { buildStats, assetPrefix } = __NEXT_DATA__
const hash = buildStats ? buildStats[filename].hash : '-'
return (
<script
key={filename}
type='text/javascript'
src={`${assetPrefix}/_next/${hash}/${filename}`}
{...additionalProps}
/>
)
}
getScripts () {
const { dev } = this.context._documentProps
if (dev) {
return [
this.getChunkScript('manifest.js'),
this.getChunkScript('commons.js'),
this.getChunkScript('main.js')
]
}
// In the production mode, we have a single asset with all the JS content.
// So, we can load the script with async
return [this.getChunkScript('app.js', { async: true })]
}
render () {
const { staticMarkup, __NEXT_DATA__ } = this.context._documentProps
const { pathname, realPathname, buildId, assetPrefix } = __NEXT_DATA__
return <div>
{staticMarkup ? null : <script dangerouslySetInnerHTML={{
__html: `
__NEXT_DATA__ = ${htmlescape(__NEXT_DATA__)}
module={}
__NEXT_LOADED_PAGES__ = []
__NEXT_REGISTER_PAGE = function (route, fn) {
__NEXT_LOADED_PAGES__.push({ route: route, fn: fn })
}
`
}} />}
<script async id={`__NEXT_PAGE__${pathname}`} type='text/javascript' src={`${assetPrefix}/_next/${buildId}/page${realPathname}`} />
<script async id={`__NEXT_PAGE__/_error`} type='text/javascript' src={`${assetPrefix}/_next/${buildId}/page/_error.js`} />
{staticMarkup ? null : this.getScripts()}
</div>
}
}