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<!DOCTYPE html>
<title>
Media Playback State: the :playing, :paused, and :seeking pseudo-classes
</title>
<link
rel="help"
href="https://drafts.csswg.org/selectors/#video-state"
/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<video width="300" height="300" muted loop></video>
<script>
test((t) => {
for (const pseudo of [":playing", ":paused", ":seeking"]) {
try {
document.querySelector(`.not-a-thing${pseudo}`);
} catch (e) {
assert_unreached(`${pseudo} is not supported`);
}
}
}, "Test :pseudo-class syntax is supported without throwing a SyntaxError");
promise_test(async (t) => {
const video = document.querySelector("video");
await new Promise((r) => {
video.addEventListener("canplay", r, { once: true });
video.src = "/media/counting.mp4";
});
video.muted = true; // allows us to play the video
assert_true(video.muted, "video is muted");
assert_true(video.paused, "video is paused");
await new Promise((r) => {
video.addEventListener("playing", r, { once: true });
video.play();
});
assert_false(video.paused, "video is playing");
assert_equals(document.querySelector("video:playing"), video);
assert_equals(document.querySelector("video:not(:playing)"), null);
assert_equals(document.querySelector("video:paused"), null);
assert_equals(document.querySelector("video:not(:paused)"), video);
}, "Test :playing pseudo-classes");
promise_test(async (t) => {
const video = document.querySelector("video");
await new Promise((r) => {
video.addEventListener("canplay", r, { once: true });
video.src = "/media/counting.mp4";
});
assert_equals(video.paused, true);
assert_equals(document.querySelector("video:playing"), null);
assert_equals(document.querySelector("video:not(:playing)"), video);
assert_equals(document.querySelector("video:paused"), video);
assert_equals(document.querySelector("video:not(:paused)"), null);
}, "Test :paused pseudo-classes");
promise_test(async (t) => {
const video = document.querySelector("video");
await new Promise((r) => {
video.addEventListener("canplay", r, { once: true });
video.src = "/media/counting.mp4";
});
assert_equals(document.querySelector("video:seeking"), null);
assert_equals(document.querySelector("video:not(:seeking)"), video);
await new Promise((r) => {
video.addEventListener("seeking", r, { once: true });
video.currentTime = 10;
});
assert_equals(document.querySelector("video:seeking"), video);
assert_equals(document.querySelector("video:not(:seeking)"), null);
}, "Test :seeking pseudo-class");
</script>
</body>
|
