25 lines
742 B
JavaScript
25 lines
742 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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this.EXPORTED_SYMBOLS = ["TransientPrefs"];
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Components.utils.import("resource://gre/modules/Preferences.jsm");
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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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this.TransientPrefs = {
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prefShouldBeVisible: function (prefName) {
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if (Preferences.isSet(prefName))
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prefVisibility.set(prefName, true);
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return !!prefVisibility.get(prefName);
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}
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};
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