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<!DOCTYPE html>
<!-- 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
<html>
<head>
<meta charset="utf-8"/>
<title></title>
</head>
<body>
<script>
"use strict";
// This file is used to test opening the given script in devtools debugger
// from a front-end.
// The following are the titles used to communicate the page's state to the tests.
// Keep these in sync with any tests that read them.
const initialTitle = "Waiting to send the webchannel request";
const successTitle = "Request sent";
const errorTitle = "Error"
document.title = initialTitle;
// A function which requests the favicons from the browser using the
// OPEN_SCRIPT_IN_DEBUGGER WebChannel message.
function sendWebchannelRequest(requestBody) {
return new Promise((resolve, reject) => {
const requestId = 0;
function listener(event) {
window.removeEventListener(
"WebChannelMessageToContent",
listener,
true
);
const { id, message } = event.detail;
if (id !== "profiler.firefox.com" ||
!message ||
typeof message !== "object"
) {
console.error(message);
reject(new Error("A malformed WebChannel event was received."));
return;
}
if (!message.type) {
console.error(message);
reject(new Error("The WebChannel event indicates an error."));
return;
}
if (message.requestId === requestId) {
if (message.type === "SUCCESS_RESPONSE") {
resolve(message.response);
} else {
reject(new Error(message.error));
}
}
}
window.addEventListener("WebChannelMessageToContent", listener, true);
window.dispatchEvent(
new CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "profiler.firefox.com",
message: { type: "OPEN_SCRIPT_IN_DEBUGGER", requestId, ...requestBody},
}),
})
);
})
}
async function runTest() {
try {
// We get the request body from the mochitest itself by reading the
// url search params.
const params = new URLSearchParams(document.location.search);
const requestBody = JSON.parse(params.get("request"));
await sendWebchannelRequest(requestBody);
document.title = successTitle;
} catch (error) {
// Catch any error and notify the test.
document.title = errorTitle;
dump('An error was caught in webchannel.html\n');
dump(`${error}\n`);
console.error(
"An error was caught in webchannel.html",
error
);
}
}
runTest();
</script>
</body>
</html>