зеркало из https://github.com/mozilla/gecko-dev.git
49 строки
1.6 KiB
JavaScript
49 строки
1.6 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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/* global ExtensionAPI, ExtensionCommon, Services, XPCOMUtils */
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XPCOMUtils.defineLazyModuleGetters(this, {
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Services: "resource://gre/modules/Services.jsm",
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});
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this.aboutConfigPrefs = class extends ExtensionAPI {
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getAPI(context) {
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const EventManager = ExtensionCommon.EventManager;
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const extensionIDBase = context.extension.id.split("@")[0];
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const extensionPrefNameBase = `extensions.${extensionIDBase}.`;
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return {
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aboutConfigPrefs: {
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onPrefChange: new EventManager({
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context,
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name: "aboutConfigPrefs.onUAOverridesPrefChange",
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register: (fire, name) => {
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const prefName = `${extensionPrefNameBase}${name}`;
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const callback = () => {
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fire.async(name).catch(() => {}); // ignore Message Manager disconnects
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};
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Services.prefs.addObserver(prefName, callback);
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return () => {
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Services.prefs.removeObserver(prefName, callback);
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};
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},
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}).api(),
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async getPref(name) {
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try {
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return Services.prefs.getBoolPref(`${extensionPrefNameBase}${name}`);
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} catch (_) {
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return undefined;
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}
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},
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async setPref(name, value) {
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Services.prefs.setBoolPref(`${extensionPrefNameBase}${name}`, value);
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},
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},
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};
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}
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};
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