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<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Test for DOM Worker Threads Suspending</title>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<div id="output"></div>
<script class="testbody" type="text/javascript">
var worker;
var finish = false;
var bc = new BroadcastChannel("suspendWindow");
bc.onmessage = (msgEvent) => {
var msg = msgEvent.data;
var command = msg.command;
if (command == "startWorker") {
startWorker();
} else if (command == "navigate") {
window.location = "suspend_blank.html";
} else if (command == "finish") {
finish = true;
terminateWorker();
bc.postMessage({command: "finished"});
bc.close();
window.close();
}
}
function messageCallback(data) {
if (finish) {
return;
}
bc.postMessage({command: "messageCallback", data});
}
function errorCallback(msg) {
if (finish) {
return;
}
bc.postMessage({command: "errorCallback", data: msg});
}
var output = document.getElementById("output");
function terminateWorker() {
if (worker) {
worker.postMessage("stop");
worker = null;
}
}
function startWorker() {
var lastData;
worker = new Worker("suspend_worker.js");
worker.onmessage = function(event) {
output.textContent = (lastData ? lastData + " -> " : "") + event.data;
lastData = event.data;
messageCallback(event.data);
};
worker.onerror = function(event) {
this.terminate();
errorCallback(event.message);
};
}
window.onload = () => {
bc.postMessage({command: "loaded"});
}
</script>
</pre>
</body>
</html>
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