82 lines
2.8 KiB
JavaScript
82 lines
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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"use strict";
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/* global ExtensionAPI, ExtensionCommon, Services */
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this.aboutConfigPrefs = class AboutConfigPrefsAPI extends ExtensionAPI {
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static ALLOWED_GLOBAL_PREFS = Object.freeze(
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["layout.css.prefixes.transforms"].concat(
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Cu.isInAutomation ? ["webcompat.test.pref1", "webcompat.test.pref2"] : []
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)
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);
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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.${extensionIDBase}.`;
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function getSafePref(name) {
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if (AboutConfigPrefsAPI.ALLOWED_GLOBAL_PREFS.includes(name)) {
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return name;
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}
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return `${extensionPrefNameBase}${name}`;
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}
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return {
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aboutConfigPrefs: {
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onPrefChange: new EventManager({
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context,
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name: "aboutConfigPrefs.onUAOverridesPrefChange",
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register: (fire, name) => {
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const prefName = getSafePref(name);
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const callback = () => {
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fire.async(name).catch(() => {}); // ignore Message Manager disconnects
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};
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Services.prefs.addObserver(prefName, callback);
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return () => {
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Services.prefs.removeObserver(prefName, callback);
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};
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},
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}).api(),
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async getBranch(branchName) {
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const branch = `${extensionPrefNameBase}${branchName}.`;
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return Services.prefs.getChildList(branch).map(pref => {
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const name = pref.replace(branch, "");
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return { name, value: Services.prefs.getBoolPref(pref) };
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});
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},
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async getPref(_name) {
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const name = getSafePref(_name);
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try {
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switch (Services.prefs.getPrefType(name)) {
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case Ci.nsIPrefBranch.PREF_BOOL:
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return Services.prefs.getBoolPref(name);
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case Ci.nsIPrefBranch.PREF_INT:
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return Services.prefs.getIntPref(name);
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case Ci.nsIPrefBranch.PREF_STRING:
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return Services.prefs.getStringPref(name);
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}
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} catch (_) {}
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return undefined;
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},
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async setPref(_name, value) {
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const name = getSafePref(_name);
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switch (typeof value) {
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case "boolean":
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Services.prefs.setBoolPref(name, value);
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break;
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case "number":
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Services.prefs.setIntPref(name, value);
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break;
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case "string":
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Services.prefs.setStringPref(name, value);
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break;
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}
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},
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},
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};
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}
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};
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