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LibWeb: Update style before getting animation play state

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Pending style updates can influence this value
This commit is contained in:
Callum Law
2025-10-31 01:14:05 +13:00
committed by Alexander Kalenik
parent a95cde3660
commit fbcef936a9
Notes: github-actions[bot] 2025-11-02 22:55:11 +00:00 
Author: https://github.com/Calme1709
Commit: https://github.com/LadybirdBrowser/ladybird/commit/fbcef936a97
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6642
Reviewed-by: https://github.com/AtkinsSJ ✅
7 changed files with 286 additions and 1 deletions
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55
Tests/LibWeb/Text/input/wpt-import/css/css-animations/CSSAnimation-playState.tentative.html Normal file
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<!doctype html>
<meta charset=utf-8>
<title>CSSAnimation.playState</title>
<!-- TODO: Add a more specific link for this once it is specified. -->
<link rel="help" href="https://drafts.csswg.org/css-animations-2/#cssanimation">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="support/testcommon.js"></script>
<style>
@keyframes anim { }
</style>
<div id="log"></div>
<script>
'use strict';
test(t => {
const div = addDiv(t, { 'style': 'animation: anim 100s' });
const animation = div.getAnimations()[0];
assert_true(animation.pending);
assert_equals(animation.playState, 'running');
assert_equals(animation.startTime, null);
}, 'A new CSS animation is initially play-pending');
test(t => {
const div = addDiv(t, { 'style': 'animation: anim 1000s paused' });
const animation = div.getAnimations()[0];
assert_equals(animation.playState, 'paused');
}, 'Animation returns correct playState when paused');
test(t => {
const div = addDiv(t, { 'style': 'animation: anim 1000s' });
const animation = div.getAnimations()[0];
animation.pause();
assert_equals(animation.playState, 'paused');
}, 'Animation.playState updates when paused by script');
test(t => {
const div = addDiv(t, { 'style': 'animation: anim 1000s paused' });
const animation = div.getAnimations()[0];
div.style.animationPlayState = 'running';
// This test also checks that calling playState flushes style
assert_equals(animation.playState, 'running',
'Animation.playState reports running after updating'
+ ' animation-play-state (got: ' + animation.playState + ')');
}, 'Animation.playState updates when resumed by setting style');
test(t => {
const div = addDiv(t, { 'style': 'animation: anim 1000s' });
const animation = div.getAnimations()[0];
animation.cancel();
assert_equals(animation.playState, 'idle');
}, 'Animation returns correct playState when canceled');
</script>