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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for Bug 742376</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script 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 **/
let Cc = SpecialPowers.Cc;
let Ci = SpecialPowers.Ci;
let dss = Cc["@mozilla.org/devicesensors;1"].getService(Ci.nsIDeviceSensors);
function hasLightListeners() {
return dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_LIGHT, window);
}
function hasOrientationListeners() {
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);
}
function hasProximityListeners() {
return dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_PROXIMITY, window);
}
function hasMotionListeners() {
return dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_ACCELERATION, window) ||
dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_LINEAR_ACCELERATION, window) ||
dss.hasWindowListener(Ci.nsIDeviceSensorData.TYPE_GYROSCOPE, window);
}
async function test_event_presence(prefName, eventCheck, eventName) {
function dumbListener(event) {}
function dumbListener2(event) {}
function dumbListener3(event) {}
await SpecialPowers.pushPrefEnv({"set": [
[prefName, true]
]});
is(eventCheck(), false, "Must not have listeners before tests start");
window.addEventListener(eventName, dumbListener);
window.addEventListener("random_event_name", function() {});
window.addEventListener(eventName, dumbListener2);
is(eventCheck(), true, `Should have listeners when ${eventName} sensor is enabled`);
window.removeEventListener(eventName, dumbListener);
window.removeEventListener(eventName, dumbListener2);
is(eventCheck(), false, "Must not have listeners when removed");
await SpecialPowers.pushPrefEnv({"set": [
[prefName, false]
]});
window.addEventListener(eventName, dumbListener);
window.addEventListener("random_event_name", function() {});
window.addEventListener(eventName, dumbListener2);
is(eventCheck(), false, "Must not have listeners when sensor is disabled");
}
async function start() {
await SpecialPowers.pushPrefEnv({"set": [
["device.sensors.enabled", true],
["device.sensors.orientation.enabled", true]
]});
is(hasOrientationListeners(), false, "Must not have listeners before tests start");
function dumbListener(event) {}
function dumbListener2(event) {}
function dumbListener3(event) {}
window.addEventListener("deviceorientation", dumbListener);
window.addEventListener("random_event_name", function() {});
window.addEventListener("deviceorientation", dumbListener2);
is(hasOrientationListeners(), true, "Listeners should have been added");
await new Promise(resolve => {
window.setTimeout(function() {
window.removeEventListener("deviceorientation", dumbListener);
is(hasOrientationListeners(), true, "Only some listeners should have been removed");
window.setTimeout(function() {
window.removeEventListener("deviceorientation", dumbListener2);
window.setTimeout(function() {
is(hasOrientationListeners(), false, "Listeners should have been removed");
resolve();
}, 0);
}, 0);
}, 0);
});
await new Promise(resolve => {
window.ondeviceorientation = function() {}
window.setTimeout(function() {
is(hasOrientationListeners(), true, "Handler should have been added");
window.ondeviceorientation = null;
window.setTimeout(function() {
is(hasOrientationListeners(), false, "Handler should have been removed");
resolve();
}, 0);
}, 0);
});
await test_event_presence("device.sensors.ambientLight.enabled", hasLightListeners, "devicelight");
await test_event_presence("device.sensors.proximity.enabled", hasProximityListeners, "userproximity");
await test_event_presence("device.sensors.motion.enabled", hasMotionListeners, "devicemotion");
await test_event_presence("device.sensors.orientation.enabled", hasOrientationListeners, "deviceorientation");
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
start();
</script>
</pre>
</body>
</html>