<!--
Copyright 2014 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<html>
<head>
<script type="text/javascript">
// A guest that ceate a worker to request filesystem.
// Notifies the embedder about the result of the request (success/fail)
// via post message. Note that the embedder has to initiate a postMessage
// first so that guest has a reference to the embedder's window.
// The window reference of the embedder to send post message reply.
var embedderWindowChannel = null;
var expectedTotalCallbackCount;
var totalCallbackCount;
var successCallbackCount;
var testName = 'uninitialized';
var maybeNotifyEmbedder = function() {
window.console.log('maybeNotifyEmbedder' +
', expectedTotalCallbackCount: ' +
expectedTotalCallbackCount +
', successCallbackCount: ' +
successCallbackCount +
', totalCallbackCount: ' +
totalCallbackCount);
if(expectedTotalCallbackCount == totalCallbackCount) {
var status = (expectedTotalCallbackCount == successCallbackCount) ?
'access-granted' : 'access-denied';
var responseArray = [testName, status];
notifyEmbedder(responseArray);
}
};
var notifyEmbedder = function(msg_array) {
embedderWindowChannel.postMessage(JSON.stringify(msg_array), '*');
};
var startTest = function() {
expectedTotalCallbackCount = 1;
totalCallbackCount = 0;
successCallbackCount = 0;
window.console.log('Call initWorker');
initWorker();
};
var initWorker = function() {
window.worker = new Worker('worker.js');
worker.addEventListener('message', function(e) {
var data = e.data;
switch (data.type) {
case 'echo':
window.console.log('echo: ' + data.msg);
break;
case 'error':
window.console.log('error: ' + data.msg);
break;
case 'result':
window.console.log('result: ' + data.msg);
successCallbackCount += parseInt(data.msg);
++totalCallbackCount;
maybeNotifyEmbedder();
break;
default:
window.console.log('UNKNOWN MESSAGE FROM WORKER');
break;
}
}, false);
worker.postMessage({'type': 'requestFileSystem'});
};
var onPostMessageReceived = function(e) {
window.console.log('guest.onPostMessageReceived');
var data = JSON.parse(e.data);
if (data[0] == 'check-filesystem-permission') {
testName = data[1];
embedderWindowChannel = e.source;
// Start the test once we have |embedderWindowChannel|.
startTest();
}
};
addEventListener('message', onPostMessageReceived, false);
</script>
</head>
<body>
<div>This is a guest that create a worker to request filesystem.</div>
<script>
window.console.log('Guest loaded');
</script>
</body>
</html>