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aa6c7a6981
MozReview-Commit-ID: 6ZZxDp04oPX --HG-- extra : rebase_source : 8f58895a8fc1b2999426da02918c8638bd789203
82 lines
2.3 KiB
JavaScript
82 lines
2.3 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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const {utils: Cu} = Components;
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Cu.import("resource://gre/modules/Preferences.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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const ACTIVITY_STREAM_PREF_BRANCH = "browser.newtabpage.activity-stream.";
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this.Prefs = class Prefs extends Preferences {
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/**
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* Prefs - A wrapper around Preferences that always sets the branch to
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* ACTIVITY_STREAM_PREF_BRANCH
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*/
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constructor(branch = ACTIVITY_STREAM_PREF_BRANCH) {
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super({branch});
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this._branchName = branch;
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}
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get branchName() {
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return this._branchName;
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}
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};
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this.DefaultPrefs = class DefaultPrefs {
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/**
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* DefaultPrefs - A helper for setting and resetting default prefs for the add-on
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*
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* @param {Array} config An array of configuration objects with the following properties:
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* {string} .name The name of the pref
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* {string} .title (optional) A description of the pref
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* {bool|string|number} .value The default value for the pref
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* @param {string} branch (optional) The pref branch (defaults to ACTIVITY_STREAM_PREF_BRANCH)
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*/
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constructor(config, branch = ACTIVITY_STREAM_PREF_BRANCH) {
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this._config = config;
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this.branch = Services.prefs.getDefaultBranch(branch);
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}
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/**
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* _setDefaultPref - Sets the default value (not user-defined) for a given pref
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*
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* @param {string} key The name of the pref
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* @param {type} val The default value of the pref
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*/
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_setDefaultPref(key, val) {
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switch (typeof val) {
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case "boolean":
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this.branch.setBoolPref(key, val);
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break;
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case "number":
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this.branch.setIntPref(key, val);
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break;
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case "string":
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this.branch.setStringPref(key, val);
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break;
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}
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}
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/**
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* init - Set default prefs for all prefs in the config
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*/
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init() {
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for (const pref of this._config) {
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this._setDefaultPref(pref.name, pref.value);
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}
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}
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/**
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* reset - Resets all user-defined prefs for prefs in ._config to their defaults
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*/
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reset() {
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for (const pref of this._config) {
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this.branch.clearUserPref(pref.name);
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}
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}
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};
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this.EXPORTED_SYMBOLS = ["DefaultPrefs", "Prefs"];
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