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244ca91df9
Differential Revision: https://phabricator.services.mozilla.com/D66548 --HG-- extra : moz-landing-system : lando
93 lines
2.9 KiB
JavaScript
93 lines
2.9 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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"use strict";
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/**
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* The downloaded Fluent file is located in this sub-directory of the local
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* profile directory.
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*/
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const RS_DOWNLOADED_FILE_SUBDIR = "settings/main/ms-language-packs";
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const USE_REMOTE_L10N_PREF =
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"browser.newtabpage.activity-stream.asrouter.useRemoteL10n";
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const { XPCOMUtils } = ChromeUtils.import(
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"resource://gre/modules/XPCOMUtils.jsm"
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);
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XPCOMUtils.defineLazyModuleGetters(this, {
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L10nRegistry: "resource://gre/modules/L10nRegistry.jsm",
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FileSource: "resource://gre/modules/L10nRegistry.jsm",
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OS: "resource://gre/modules/osfile.jsm",
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Services: "resource://gre/modules/Services.jsm",
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});
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class _RemoteL10n {
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constructor() {
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this._l10n = null;
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}
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/**
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* Creates a new DOMLocalization instance with the Fluent file from Remote Settings.
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*
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* Note: it will use the local Fluent file in any of following cases:
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* * the remote Fluent file is not available
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* * it was told to use the local Fluent file
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*/
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_createDOML10n() {
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/* istanbul ignore next */
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async function* generateBundles(resourceIds) {
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const appLocale = Services.locale.appLocaleAsBCP47;
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const appLocales = Services.locale.appLocalesAsBCP47;
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const l10nFluentDir = OS.Path.join(
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OS.Constants.Path.localProfileDir,
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RS_DOWNLOADED_FILE_SUBDIR
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);
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const fs = new FileSource("cfr", [appLocale], `file://${l10nFluentDir}/`);
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// In the case that the Fluent file has not been downloaded from Remote Settings,
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// `fetchFile` will return `false` and fall back to the packaged Fluent file.
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const resource = await fs.fetchFile(appLocale, "asrouter.ftl");
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for await (let bundle of L10nRegistry.generateBundles(
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appLocales.slice(0, 1),
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resourceIds
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)) {
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// Override built-in messages with the resource loaded from remote settings for
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// the app locale, i.e. the first item of `appLocales`.
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if (resource) {
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bundle.addResource(resource, { allowOverrides: true });
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}
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yield bundle;
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}
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// Now generating bundles for the rest of locales of `appLocales`.
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yield* L10nRegistry.generateBundles(appLocales.slice(1), resourceIds);
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}
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return new DOMLocalization(
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[
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"browser/newtab/asrouter.ftl",
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"browser/branding/brandings.ftl",
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"browser/branding/sync-brand.ftl",
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"branding/brand.ftl",
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],
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false,
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Services.prefs.getBoolPref(USE_REMOTE_L10N_PREF, true)
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? { generateBundles }
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: {}
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);
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}
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get l10n() {
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if (!this._l10n) {
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this._l10n = this._createDOML10n();
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}
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return this._l10n;
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}
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reloadL10n() {
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this._l10n = null;
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}
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}
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this.RemoteL10n = new _RemoteL10n();
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const EXPORTED_SYMBOLS = ["RemoteL10n", "_RemoteL10n"];
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