audiobookshelf/client/.nuxt/jsonp.js
Mark Cooper a0c60a93ba Init
2021-08-17 17:01:11 -05:00

83 lines
2.1 KiB
JavaScript

const chunks = {} // chunkId => exports
const chunksInstalling = {} // chunkId => Promise
const failedChunks = {}
function importChunk(chunkId, src) {
// Already installed
if (chunks[chunkId]) {
return Promise.resolve(chunks[chunkId])
}
// Failed loading
if (failedChunks[chunkId]) {
return Promise.reject(failedChunks[chunkId])
}
// Installing
if (chunksInstalling[chunkId]) {
return chunksInstalling[chunkId]
}
// Set a promise in chunk cache
let resolve, reject
const promise = chunksInstalling[chunkId] = new Promise((_resolve, _reject) => {
resolve = _resolve
reject = _reject
})
// Clear chunk data from cache
delete chunks[chunkId]
// Start chunk loading
const script = document.createElement('script')
script.charset = 'utf-8'
script.timeout = 120
script.src = src
let timeout
// Create error before stack unwound to get useful stacktrace later
const error = new Error()
// Complete handlers
const onScriptComplete = script.onerror = script.onload = (event) => {
// Cleanups
clearTimeout(timeout)
delete chunksInstalling[chunkId]
// Avoid mem leaks in IE
script.onerror = script.onload = null
// Verify chunk is loaded
if (chunks[chunkId]) {
return resolve(chunks[chunkId])
}
// Something bad happened
const errorType = event && (event.type === 'load' ? 'missing' : event.type)
const realSrc = event && event.target && event.target.src
error.message = 'Loading chunk ' + chunkId + ' failed.\n(' + errorType + ': ' + realSrc + ')'
error.name = 'ChunkLoadError'
error.type = errorType
error.request = realSrc
failedChunks[chunkId] = error
reject(error)
}
// Timeout
timeout = setTimeout(() => {
onScriptComplete({ type: 'timeout', target: script })
}, 120000)
// Append script
document.head.appendChild(script)
// Return promise
return promise
}
export function installJsonp() {
window.__NUXT_JSONP__ = function (chunkId, exports) { chunks[chunkId] = exports }
window.__NUXT_JSONP_CACHE__ = chunks
window.__NUXT_IMPORT__ = importChunk
}