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/* 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";
/**
* Bug 1767407 - Shim Firebase
*
* Sites relying on firebase-messaging.js will break in Private
* browsing mode because it assumes that they require service
* workers and indexedDB, when they generally do not.
*/
/* globals cloneInto */
(function() {
const win = window.wrappedJSObject;
const emptyObj = new win.Object();
const emptyArr = new win.Array();
const emptyMsg = cloneInto({ message: "" }, window);
const noOpFn = cloneInto(function() {}, window, { cloneFunctions: true });
if (!win.indexedDB) {
const idb = {
open: () => win.Promise.reject(emptyMsg),
};
Object.defineProperty(win, "indexedDB", {
value: cloneInto(idb, window, { cloneFunctions: true }),
});
}
// bug 1778993
for (const name of [
"IDBCursor",
"IDBDatabase",
"IDBIndex",
"IDBOpenDBRequest",
"IDBRequest",
"IDBTransaction",
]) {
if (!win[name]) {
Object.defineProperty(win, name, { value: emptyObj });
}
}
if (!win.serviceWorker) {
const sw = {
addEventListener() {},
getRegistrations: () => win.Promise.resolve(emptyArr),
register: () => win.Promise.reject(emptyMsg),
};
Object.defineProperty(navigator.wrappedJSObject, "serviceWorker", {
value: cloneInto(sw, window, { cloneFunctions: true }),
});
// bug 1779536
Object.defineProperty(navigator.wrappedJSObject.serviceWorker, "ready", {
value: new win.Promise(noOpFn),
});
}
// bug 1750699
if (!win.PushManager) {
Object.defineProperty(win, "PushManager", { value: emptyObj });
}
// bug 1750699
if (!win.PushSubscription) {
const ps = {
prototype: {
getKey() {},
},
};
Object.defineProperty(win, "PushSubscription", {
value: cloneInto(ps, window, { cloneFunctions: true }),
});
}
// bug 1750699
if (!win.ServiceWorkerRegistration) {
const swr = {
prototype: {
showNotification() {},
},
};
Object.defineProperty(win, "ServiceWorkerRegistration", {
value: cloneInto(swr, window, { cloneFunctions: true }),
});
}
})();
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