48 lines
1.5 KiB
JavaScript
48 lines
1.5 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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/**
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* Registers about: pages provided by Shield, and listens for a shutdown event
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* from the add-on before un-registering them.
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*
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* This file is loaded as a process script. It is executed once for each
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* process, including the parent one.
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*/
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ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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ChromeUtils.import("resource://gre/modules/Services.jsm");
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ChromeUtils.import("resource://normandy-content/AboutPages.jsm");
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class ShieldChildListener {
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onStartup() {
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Services.cpmm.addMessageListener("Shield:ShuttingDown", this, true);
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AboutPages.aboutStudies.register();
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}
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onShutdown() {
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AboutPages.aboutStudies.unregister();
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Services.cpmm.removeMessageListener("Shield:ShuttingDown", this);
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// Unload AboutPages.jsm in case the add-on is reinstalled and we need to
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// load a new version of it.
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Cu.unload("resource://normandy-content/AboutPages.jsm");
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}
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receiveMessage(message) {
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switch (message.name) {
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case "Shield:ShuttingDown":
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this.onShutdown();
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break;
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}
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}
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}
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// Only register in content processes; the parent process handles registration
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// separately.
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if (Services.appinfo.processType === Services.appinfo.PROCESS_TYPE_CONTENT) {
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const listener = new ShieldChildListener();
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listener.onStartup();
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}
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