| 'use client' |
|
|
| import { preload } from 'react-dom' |
|
|
| import { workAsyncStorage } from '../../../server/app-render/work-async-storage.external' |
| import { encodeURIPath } from '../encode-uri-path' |
|
|
| export function PreloadChunks({ |
| moduleIds, |
| }: { |
| moduleIds: string[] | undefined |
| }) { |
| |
| if (typeof window !== 'undefined') { |
| return null |
| } |
|
|
| const workStore = workAsyncStorage.getStore() |
| if (workStore === undefined) { |
| return null |
| } |
|
|
| const allFiles = [] |
|
|
| |
| |
| if (workStore.reactLoadableManifest && moduleIds) { |
| const manifest = workStore.reactLoadableManifest |
| for (const key of moduleIds) { |
| if (!manifest[key]) continue |
| const chunks = manifest[key].files |
| allFiles.push(...chunks) |
| } |
| } |
|
|
| if (allFiles.length === 0) { |
| return null |
| } |
|
|
| const dplId = process.env.NEXT_DEPLOYMENT_ID |
| ? `?dpl=${process.env.NEXT_DEPLOYMENT_ID}` |
| : '' |
|
|
| return ( |
| <> |
| {allFiles.map((chunk) => { |
| const href = `${workStore.assetPrefix}/_next/${encodeURIPath(chunk)}${dplId}` |
| const isCss = chunk.endsWith('.css') |
| // If it's stylesheet we use `precedence` o help hoist with React Float. |
| // For stylesheets we actually need to render the CSS because nothing else is going to do it so it needs to be part of the component tree. |
| // The `preload` for stylesheet is not optional. |
| if (isCss) { |
| return ( |
| <link |
| key={chunk} |
| // @ts-ignore |
| precedence="dynamic" |
| href={href} |
| rel="stylesheet" |
| as="style" |
| /> |
| ) |
| } else { |
| // If it's script we use ReactDOM.preload to preload the resources |
| preload(href, { |
| as: 'script', |
| fetchPriority: 'low', |
| }) |
| return null |
| } |
| })} |
| </> |
| ) |
| } |
|
|
