Re: [whatwg] Web Workers: include simple example for shared workers

[Simon Pieters]

On Tue, 23 Feb 2010 21:36:15 +0100, Simon Pieters <sim...@opera.com> wrote:
step 3.

test.html
<pre id="log">Log:</pre>
<script>
var worker = new SharedWorker('test.js');
var log = document.getElementById('log');
worker.port.addEventListener('message', function(e) {
   log.textContent += '\n' + e.data;
}, false);
worker.port.start();
worker.port.postMessage('ping');
</script>
<iframe src=other.html></iframe>

other.html
<pre id=log>Inner log:</pre>
<script>
var worker = new SharedWorker('test.js');
var log = document.getElementById('log');
worker.port.onmessage = function(e) {
   log.textContent += '\n' + e.data;
}
</script>

test.js
onconnect = function(e) {
   var port = e.ports[0];
   port.postMessage('hello');
   port.onmessage = function(e) {
     port.postMessage('pong');
   }
}

The worker script could be modified in step 3 as follows to make it clear  
that the script is in fact shared:

test.js
var i = 0;
onconnect = function(e) {
  i++;
  var port = e.ports[0];
  port.postMessage('hello, ' + i);
  port.onmessage = function(e) {
    port.postMessage('pong');
  }
}

--
Simon Pieters
Opera Software