c023b56e44
Loading this script into every frameloader wasts a massive amount of memory in every content process, even though it's only needed when we load about:home or about:newtab. MozReview-Commit-ID: 5YtEKLGVX4
37 lines
1.2 KiB
JavaScript
37 lines
1.2 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* eslint-env mozilla/frame-script */
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"use strict";
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ChromeUtils.import("resource://gre/modules/Services.jsm");
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ChromeUtils.defineModuleGetter(this, "Onboarding", "resource://onboarding/Onboarding.jsm");
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const ABOUT_HOME_URL = "about:home";
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const ABOUT_NEWTAB_URL = "about:newtab";
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// Load onboarding module only when we enable it.
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if (Services.prefs.getBoolPref("browser.onboarding.enabled", false)) {
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addEventListener("load", function onLoad(evt) {
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if (!content || evt.target != content.document) {
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return;
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}
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let window = evt.target.defaultView;
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let location = window.location.href;
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if (location == ABOUT_NEWTAB_URL || location == ABOUT_HOME_URL) {
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// We just want to run tests as quickly as possible
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// so in the automation test, we don't do `requestIdleCallback`.
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if (Cu.isInAutomation) {
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new Onboarding(this, window);
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return;
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}
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window.requestIdleCallback(() => {
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new Onboarding(this, window);
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});
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}
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}, true);
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}
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