blob: aeee53747ace437bf55bdc634793dfd93a9effff [file] [log] [blame]
* @license
* Copyright 2022 Google LLC
* SPDX-License-Identifier: Apache-2.0
// This file adds some simple checks to match internal Google rules.
// Internally at Google it has different a implementation.
import {AccountDetailInfo} from '../api/rest-api';
* We cannot import the worker script from cdn directly, because that is
* creating cross-origin issues. Instead we have to create a worker script on
* the fly and pull the actual worker via `importScripts()`. Apparently that
* is a well established pattern.
function wrapUrl(url: string) {
const content = `importScripts("${url}");`;
return URL.createObjectURL(new Blob([content], {type: 'text/javascript'}));
export function createWorker(workerUrl: string): Worker {
if (!workerUrl.startsWith('http'))
throw new Error(`Worker URL '${workerUrl}' does not start with 'http'.`);
return new Worker(wrapUrl(workerUrl));
export function registerServiceWorker(workerUrl: string) {
return window.navigator.serviceWorker.register(workerUrl);
export function areNotificationsEnabled(account?: AccountDetailInfo): boolean {
return !!account?._account_id;
export function importScript(scope: WorkerGlobalScope, url: string): void {