rsnext/packages/next/client/next-dev.js
Gerald Monaco a666591555
Split up & tweak next/client initialization (#33838)
For streaming, we want the main bundle to be loaded with `async` rather than `defer`. As the first step to doing that, we need an explicit initialization step, rather than occurring as a side effect of being loaded.

For now, I've just split the logic into a `initialization` and `hydrate` (previously `initNext`) functions and called them as a side effect of `next/client/next` and `next/client/next-dev` as before. A follow-up PR will move that to a separate script tag [as recommended](https://github.com/reactwg/react-18/discussions/114).
2022-03-07 17:09:55 +00:00

107 lines
3.3 KiB
JavaScript

import { initialize, hydrate, version, router, emitter } from './'
import initOnDemandEntries from './dev/on-demand-entries-client'
import initWebpackHMR from './dev/webpack-hot-middleware-client'
import initializeBuildWatcher from './dev/dev-build-watcher'
import { displayContent } from './dev/fouc'
import { connectHMR, addMessageListener } from './dev/error-overlay/websocket'
import {
assign,
urlQueryToSearchParams,
} from '../shared/lib/router/utils/querystring'
if (!window._nextSetupHydrationWarning) {
const origConsoleError = window.console.error
window.console.error = (...args) => {
const isHydrateError = args.some(
(arg) =>
typeof arg === 'string' &&
arg.match(/Warning:.*?did not match.*?Server:/)
)
if (isHydrateError) {
args = [
...args,
`\n\nSee more info here: https://nextjs.org/docs/messages/react-hydration-error`,
]
}
origConsoleError.apply(window.console, args)
}
window._nextSetupHydrationWarning = true
}
window.next = {
version,
// router is initialized later so it has to be live-binded
get router() {
return router
},
emitter,
}
const webpackHMR = initWebpackHMR()
initialize({ webpackHMR })
.then(({ assetPrefix }) => {
connectHMR({ assetPrefix, path: '/_next/webpack-hmr' })
return hydrate({ beforeRender: displayContent }).then(() => {
initOnDemandEntries()
let buildIndicatorHandler = () => {}
function devPagesManifestListener(event) {
if (event.data.indexOf('devPagesManifest') !== -1) {
fetch(
`${assetPrefix}/_next/static/development/_devPagesManifest.json`
)
.then((res) => res.json())
.then((manifest) => {
window.__DEV_PAGES_MANIFEST = manifest
})
.catch((err) => {
console.log(`Failed to fetch devPagesManifest`, err)
})
} else if (event.data.indexOf('middlewareChanges') !== -1) {
return window.location.reload()
} else if (event.data.indexOf('serverOnlyChanges') !== -1) {
const { pages } = JSON.parse(event.data)
// Make sure to reload when the dev-overlay is showing for an
// API route
if (pages.includes(router.query.__NEXT_PAGE)) {
return window.location.reload()
}
if (!router.clc && pages.includes(router.pathname)) {
console.log('Refreshing page data due to server-side change')
buildIndicatorHandler('building')
const clearIndicator = () => buildIndicatorHandler('built')
router
.replace(
router.pathname +
'?' +
String(
assign(
urlQueryToSearchParams(router.query),
new URLSearchParams(location.search)
)
),
router.asPath
)
.finally(clearIndicator)
}
}
}
addMessageListener(devPagesManifestListener)
if (process.env.__NEXT_BUILD_INDICATOR) {
initializeBuildWatcher((handler) => {
buildIndicatorHandler = handler
}, process.env.__NEXT_BUILD_INDICATOR_POSITION)
}
})
})
.catch((err) => {
console.error('Error was not caught', err)
})