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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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dom/events/test/test_bug742376.html Normal file
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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=402089
-->
<head>
<title>Test for Bug 742376</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=742376">Mozilla Bug 742376</a>
<script class="testbody" type="text/javascript">
/** Test for Bug 742376 **/
function hasListeners() {
var Cc = SpecialPowers.Cc;
var Ci = SpecialPowers.Ci;
var dss = Cc["@mozilla.org/devicesensors;1"].getService(Ci.nsIDeviceSensors);
return dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_ORIENTATION, window) ||
dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_ROTATION_VECTOR, window) ||
dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_GAME_ROTATION_VECTOR, window);
}
is(hasListeners(), false, "Must not have listeners before tests start");
function dumbListener(event) {}
function dumbListener2(event) {}
function dumbListener3(event) {}
window.addEventListener("deviceorientation", dumbListener, false);
window.addEventListener("random_event_name", function() {}, false);
window.addEventListener("deviceorientation", dumbListener2, false);
is(hasListeners(), true, "Listeners should have been added");
window.setTimeout(function() {
window.removeEventListener("deviceorientation", dumbListener, false);
is(hasListeners(), true, "Only some listeners should have been removed");
window.setTimeout(function() {
window.removeEventListener("deviceorientation", dumbListener2, false);
window.setTimeout(function() {
is(hasListeners(), false, "Listeners should have been removed");
testEventHandler();
}, 0);
}, 0);
}, 0);
function testEventHandler() {
window.ondeviceorientation = function() {}
window.setTimeout(function() {
is(hasListeners(), true, "Handler should have been added");
window.ondeviceorientation = null;
window.setTimeout(function() {
is(hasListeners(), false, "Handler should have been removed");
SimpleTest.finish();
}, 0);
}, 0)
}
SimpleTest.waitForExplicitFinish();
</script>
</pre>
</body>
</html>