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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";
/* globals browser */
if (!window.LiveTestShimPromise) {
const originalUrl = document.currentScript.src;
const shimId = "LiveTestShim";
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 (_) {}
if (window !== top) {
return;
}
await sendMessageToAddon("optIn");
const s = document.createElement("script");
s.src = originalUrl;
document.head.appendChild(s);
}
window[`${shimId}Promise`] = sendMessageToAddon("getOptions").then(
options => {
if (document.readyState !== "loading") {
go(options);
} else {
window.addEventListener("DOMContentLoaded", () => {
go(options);
});
}
}
);
}
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