зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.8 KiB
JavaScript
85 строки
2.8 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
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const lazy = {};
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ChromeUtils.defineESModuleGetters(lazy, {
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Normandy: "resource://normandy/Normandy.sys.mjs",
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TaskScheduler: "resource://gre/modules/TaskScheduler.sys.mjs",
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});
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const PREF_TIMEOUT = "first-startup.timeout";
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/**
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* Service for blocking application startup, to be used on the first install. The intended
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* use case is for `FirstStartup` to be invoked when the application is called by an installer,
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* such as the Windows Stub Installer, to allow the application to do some first-install tasks
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* such as performance tuning and downloading critical data.
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*
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* In this scenario, the installer does not exit until the first application window appears,
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* which gives the user experience of the application starting up quickly on first install.
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*/
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export var FirstStartup = {
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NOT_STARTED: 0,
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IN_PROGRESS: 1,
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TIMED_OUT: 2,
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SUCCESS: 3,
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UNSUPPORTED: 4,
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_state: 0, // NOT_STARTED,
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/**
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* Initialize and run first-startup services. This will always run synchronously
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* and spin the event loop until either all required services have
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* completed, or until a timeout is reached.
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*
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* In the latter case, services are expected to run post-UI instead as usual.
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*/
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init() {
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this._state = this.IN_PROGRESS;
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const timeout = Services.prefs.getIntPref(PREF_TIMEOUT, 30000); // default to 30 seconds
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let startingTime = Cu.now();
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let initialized = false;
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let promises = [];
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if (AppConstants.MOZ_NORMANDY) {
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promises.push(lazy.Normandy.init({ runAsync: false }));
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}
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if (AppConstants.MOZ_UPDATE_AGENT) {
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// It's technically possible for a previous installation to leave an old
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// OS-level scheduled task around. Start fresh.
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promises.push(lazy.TaskScheduler.deleteAllTasks().catch(() => {}));
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}
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if (promises.length) {
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Promise.all(promises).then(() => (initialized = true));
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this.elapsed = 0;
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Services.tm.spinEventLoopUntil("FirstStartup.sys.mjs:init", () => {
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this.elapsed = Math.round(Cu.now() - startingTime);
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if (this.elapsed >= timeout) {
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this._state = this.TIMED_OUT;
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return true;
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} else if (initialized) {
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this._state = this.SUCCESS;
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return true;
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}
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return false;
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});
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} else {
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this._state = this.UNSUPPORTED;
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}
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Glean.firstStartup.statusCode.set(this._state);
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Glean.firstStartup.elapsed.set(this.elapsed);
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GleanPings.firstStartup.submit();
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},
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get state() {
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return this._state;
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},
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};
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