gecko-dev/browser/modules/TransientPrefs.jsm
Victor Porof af7d1d3b67 Bug 1561435 - Format browser/modules/, a=automatic-formatting
# ignore-this-changeset

Differential Revision: https://phabricator.services.mozilla.com/D36046

--HG--
extra : source : f3c632037a1064c41b1f8b02f477c854b2fb4362
2019-07-05 09:55:19 +02:00

28 lines
763 B
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var EXPORTED_SYMBOLS = ["TransientPrefs"];
const { Preferences } = ChromeUtils.import(
"resource://gre/modules/Preferences.jsm"
);
var prefVisibility = new Map();
/* Use for preferences that should only be visible when they've been modified.
When reset to their default state, they remain visible until restarting the
application. */
var TransientPrefs = {
prefShouldBeVisible(prefName) {
if (Preferences.isSet(prefName)) {
prefVisibility.set(prefName, true);
}
return !!prefVisibility.get(prefName);
},
};