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source-queue.js
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38 lines (31 loc) · 990 Bytes
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// @flow
import { throttle } from "lodash";
import type { CreateSourceResult } from "../client/firefox/types";
let newSources;
let queuedSources;
let currentWork;
async function dispatchNewSources() {
const sources = queuedSources;
queuedSources = [];
currentWork = await newSources(sources);
}
const queue = throttle(dispatchNewSources, 100);
export default {
initialize: (actions: Object) => {
newSources = actions.newSources;
queuedSources = [];
},
queue: (source: CreateSourceResult) => {
queuedSources.push(source);
queue();
},
queueSources: (sources: CreateSourceResult[]) => {
queuedSources = queuedSources.concat(sources);
queue();
},
flush: () => Promise.all([queue.flush(), currentWork]),
clear: () => queue.cancel()
};