Source code
Revision control
Copy as Markdown
Other Tools
/* 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
"use strict";
/* globals browser */
if (!window.MochitestShimPromise) {
const originalUrl = document.currentScript.src;
const shimId = "MochitestShim";
const sendMessageToAddon = (function () {
const pendingMessages = new Map();
const channel = new MessageChannel();
channel.port1.onerror = console.error;
channel.port1.onmessage = event => {
const { messageId, response } = event.data;
const resolve = pendingMessages.get(messageId);
if (resolve) {
pendingMessages.delete(messageId);
resolve(response);
}
};
function reconnect() {
const detail = {
pendingMessages: [...pendingMessages.values()],
port: channel.port2,
shimId,
};
window.dispatchEvent(new CustomEvent("ShimConnects", { detail }));
}
window.addEventListener("ShimHelperReady", reconnect);
reconnect();
return function (message) {
const messageId =
Math.random().toString(36).substring(2) + Date.now().toString(36);
return new Promise(resolve => {
const payload = {
message,
messageId,
shimId,
};
pendingMessages.set(messageId, resolve);
channel.port1.postMessage(payload);
});
};
})();
async function go(options) {
try {
const o = document.getElementById("shims");
const cl = o.classList;
cl.remove("red");
cl.add("green");
o.innerText = JSON.stringify(options || "");
} catch (_) {}
window.shimPromiseResolve("shimmed");
if (window !== top) {
window.optInPromiseResolve(false);
return;
}
await sendMessageToAddon("optIn");
window.doingOptIn = true;
const s = document.createElement("script");
s.src = originalUrl;
s.onerror = () => window.optInPromiseResolve("error");
document.head.appendChild(s);
}
window[`${shimId}Promise`] = new Promise(resolve => {
sendMessageToAddon("getOptions").then(options => {
if (document.readyState !== "loading") {
resolve(go(options));
} else {
window.addEventListener("DOMContentLoaded", () => {
resolve(go(options));
});
}
});
});
}