overleaf/services/web/frontend/js/services/queued-http.js
Alf Eaton 2ff1cf43d6 Merge pull request #3470 from overleaf/eslint
Upgrade and configure ESLint

GitOrigin-RevId: ad5aeaf85e72c847a125ff3a9db99a12855e38aa
2020-12-16 03:08:28 +00:00

77 lines
2.1 KiB
JavaScript

/* eslint-disable
max-len,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
* decaffeinate suggestions:
* DS101: Remove unnecessary use of Array.from
* DS102: Remove unnecessary code created because of implicit returns
* DS207: Consider shorter variations of null checks
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
import App from '../base'
export default App.factory('queuedHttp', function($http, $q) {
const pendingRequests = []
let inflight = false
var processPendingRequests = function() {
if (inflight) {
return
}
const doRequest = pendingRequests.shift()
if (doRequest != null) {
inflight = true
return doRequest()
.then(function() {
inflight = false
return processPendingRequests()
})
.catch(function() {
inflight = false
return processPendingRequests()
})
}
}
const queuedHttp = function(...args) {
// We can't use Angular's $q.defer promises, because it only passes
// a single argument on error, and $http passes multiple.
const promise = {}
const successCallbacks = []
const errorCallbacks = []
// Adhere to the $http promise conventions
promise.then = function(callback, errCallback) {
successCallbacks.push(callback)
if (errCallback != null) {
errorCallbacks.push(errCallback)
}
return promise
}
promise.catch = function(callback) {
errorCallbacks.push(callback)
return promise
}
const doRequest = () =>
$http(...Array.from(args || []))
.then((...args) =>
Array.from(successCallbacks).map(cb => cb(...Array.from(args || [])))
)
.catch((...args) =>
Array.from(errorCallbacks).map(cb => cb(...Array.from(args || [])))
)
pendingRequests.push(doRequest)
processPendingRequests()
return promise
}
queuedHttp.post = (url, data) => queuedHttp({ method: 'POST', url, data })
return queuedHttp
})