forked from mirrors/gecko-dev
33 lines
881 B
JavaScript
33 lines
881 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { Module } from "chrome://remote/content/shared/messagehandler/Module.sys.mjs";
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const TEST_PREF = "remote.messagehandler.test.pref";
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class EventOnPrefChangeModule extends Module {
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constructor(messageHandler) {
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super(messageHandler);
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Services.prefs.addObserver(TEST_PREF, this.#onPreferenceUpdated);
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}
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destroy() {
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Services.prefs.removeObserver(TEST_PREF, this.#onPreferenceUpdated);
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}
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#onPreferenceUpdated = () => {
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this.emitEvent("preference-changed");
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};
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/**
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* Commands
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*/
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ping() {
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// We only use this command to force creating the module.
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return 1;
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}
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}
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export const eventonprefchange = EventOnPrefChangeModule;
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