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<!DOCTYPE html>
<title>TextTrack's cue onenter handler called when seeked onto</title>
<meta name="timeout" content="long">
<script src="/common/media.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<video>
<track src="resources/cues-chrono-order.vtt" kind="captions" default>
<script>
// Check that the onenter event is called for the right cue when seeking on the video element.
// Based on the spec step 4 [1], after a seek happens, the missed cues should be empty,
// so any cues before the target time should not receive enter event.
// [1] https://html.spec.whatwg.org/multipage/media.html#time-marches-on
async_test(function(t) {
var video = document.querySelector("video");
var testTrack = document.querySelector("track");
video.src = getVideoURI("/media/test");
video.oncanplaythrough = t.step_func(attemptTests);
function attemptTests() {
assert_equals(testTrack.track.cues.length, 3);
const targetTime = 4.0000000004;
for (let cue of testTrack.track.cues) {
if (cue.endTime > targetTime) {
cue.onenter = t.step_func(_=>t.done());
} else {
cue.onenter = t.unreached_func("onenter called for wrong cue");
}
}
video.currentTime = targetTime;
}
});
</script>
</video>
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