﻿<!--
  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>
