59 lines
1.5 KiB
HTML
59 lines
1.5 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<script src="../../resources/js-test-pre.js"></script>
|
|
</head>
|
|
<body>
|
|
<span id="e"></span>
|
|
<span id="f"></span>
|
|
<script>
|
|
description("Tests the timestamps provided to prefixed webkitRequestAnimationFrame callbacks");
|
|
|
|
var firstTimestamp = undefined;
|
|
var secondTimestamp = undefined;
|
|
var legacyFirstTimestamp = undefined;
|
|
var legacySecondTimestamp = undefined;
|
|
var deltaError = undefined;
|
|
|
|
function busyWait(millis) {
|
|
var start = Date.now();
|
|
while (Date.now()-start < millis) {}
|
|
}
|
|
|
|
window.requestAnimationFrame(function(timestamp) {
|
|
firstTimestamp = timestamp;
|
|
});
|
|
|
|
window.webkitRequestAnimationFrame(function(timestamp) {
|
|
legacyFirstTimestamp = timestamp;
|
|
|
|
window.requestAnimationFrame(function(timestamp) {
|
|
secondTimestamp = timestamp;
|
|
});
|
|
|
|
window.webkitRequestAnimationFrame(function(timestamp) {
|
|
legacySecondTimestamp = timestamp;
|
|
|
|
shouldBeGreaterThanOrEqual("legacyFirstTimestamp", "firstTimestamp");
|
|
shouldBeGreaterThanOrEqual("legacySecondTimestamp", "secondTimestamp");
|
|
deltaError = Math.abs((legacySecondTimestamp - legacyFirstTimestamp) - (secondTimestamp - firstTimestamp));
|
|
shouldBeTrue("deltaError < 0.001");
|
|
testRunner.notifyDone();
|
|
});
|
|
|
|
busyWait(10);
|
|
if (window.testRunner)
|
|
testRunner.displayAndTrackRepaints();
|
|
});
|
|
|
|
if (window.testRunner)
|
|
window.setTimeout(function() {
|
|
testRunner.displayAndTrackRepaints();
|
|
});
|
|
|
|
if (window.testRunner)
|
|
testRunner.waitUntilDone();
|
|
</script>
|
|
</body>
|
|
</html>
|