forked from mirrors/gecko-dev
af7d1d3b67
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D36046 --HG-- extra : source : f3c632037a1064c41b1f8b02f477c854b2fb4362
27 lines
763 B
JavaScript
27 lines
763 B
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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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var EXPORTED_SYMBOLS = ["TransientPrefs"];
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const { Preferences } = ChromeUtils.import(
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"resource://gre/modules/Preferences.jsm"
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);
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var prefVisibility = new Map();
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/* Use for preferences that should only be visible when they've been modified.
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When reset to their default state, they remain visible until restarting the
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application. */
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var TransientPrefs = {
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prefShouldBeVisible(prefName) {
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if (Preferences.isSet(prefName)) {
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prefVisibility.set(prefName, true);
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}
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return !!prefVisibility.get(prefName);
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},
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};
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