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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/selectors/media/media-playing-paused-style-invalidation.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>CSS style invalidation for :playing and :paused pseudo-classes</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/media.js"></script>
<style>
#playing-only:playing { outline-color: green; }
#paused-only:paused { outline-color: orange; }
#both:playing { outline-color: green; }
#both:paused { outline-color: orange; }
</style>
<body>
<video id="playing-only" width="300" height="300" muted loop></video>
<video id="paused-only" width="300" height="300" muted loop></video>
<video id="both" width="300" height="300" muted loop></video>
<script>
const BLACK = "rgb(0, 0, 0)";
const GREEN = "rgb(0, 128, 0)";
const ORANGE = "rgb(255, 165, 0)";
promise_test(async (t) => {
assert_implements(CSS.supports("selector(:playing)"), ":playing is not supported");
const video = document.querySelector("#playing-only");
t.add_cleanup(() => { video.pause(); video.removeAttribute("src"); });
await new Promise((r) => {
video.addEventListener("canplay", r, { once: true });
video.src = getVideoURI("/media/counting");
});
assert_equals(getComputedStyle(video).outlineColor, BLACK,
":playing rule must not apply while paused");
await video.play();
assert_equals(getComputedStyle(video).outlineColor, GREEN,
":playing rule must apply after play()");
}, "CSS invalidation fires for :playing when no :paused rule is present");
promise_test(async (t) => {
assert_implements(CSS.supports("selector(:paused)"), ":paused is not supported");
const video = document.querySelector("#paused-only");
t.add_cleanup(() => { video.pause(); video.removeAttribute("src"); });
await new Promise((r) => {
video.addEventListener("canplay", r, { once: true });
video.src = getVideoURI("/media/counting");
});
assert_equals(getComputedStyle(video).outlineColor, ORANGE,
":paused rule must apply while paused");
await video.play();
assert_equals(getComputedStyle(video).outlineColor, BLACK,
":paused rule must not apply after play()");
}, "CSS invalidation fires for :paused when no :playing rule is present");
promise_test(async (t) => {
assert_implements(CSS.supports("selector(:playing)") && CSS.supports("selector(:paused)"),
":playing or :paused is not supported");
const video = document.querySelector("#both");
t.add_cleanup(() => { video.pause(); video.removeAttribute("src"); });
await new Promise((r) => {
video.addEventListener("canplay", r, { once: true });
video.src = getVideoURI("/media/counting");
});
assert_equals(getComputedStyle(video).outlineColor, ORANGE,
":paused rule must apply while paused");
await video.play();
assert_equals(getComputedStyle(video).outlineColor, GREEN,
":playing rule must apply after play()");
video.pause();
assert_equals(getComputedStyle(video).outlineColor, ORANGE,
":paused rule must apply after pause()");
}, "CSS invalidation fires for both :playing and :paused rules");
</script>
</body>