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<!DOCTYPE HTML>
<html>
<!--
Test that setVisible() changes a process's priority.
-->
<head>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="../browserElementTestHelpers.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
</head>
<body>
<script type="application/javascript;version=1.7">
"use strict";
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.enableProcessPriorityManager();
function runTest() {
var iframe = document.createElement('iframe');
iframe.setAttribute('mozbrowser', true);
iframe.src = browserElementTestHelpers.emptyPage1;
var childID = null;
Promise.all([
expectOnlyOneProcessCreated('FOREGROUND').then(function(chid) {
childID = chid;
}),
expectMozbrowserEvent(iframe, 'loadend')
]).then(function() {
// Mark the frame as not visible. This should cause its priority to drop
// to BACKGROUND.
var p = expectPriorityChange(childID, 'BACKGROUND');
iframe.setVisible(false);
return p;
}).then(function() {
// Mark the frame as visible again. This should cause its priority change
// back to FOREGROUND.
var p = expectPriorityChange(childID, 'FOREGROUND');
iframe.setVisible(true);
return p;
}).then(SimpleTest.finish);
document.body.appendChild(iframe);
}
addEventListener('testready', runTest);
</script>
</body>
</html>
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