73 lines
2.4 KiB
HTML
73 lines
2.4 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>CSSTransition.ready</title>
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<!-- TODO: Add a more specific link for this once it is specified. -->
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<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#csstransition">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/helper.js"></script>
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<div id="log"></div>
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<script>
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'use strict';
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promise_test(async t => {
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const div = addDiv(t);
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// Set up pending transition
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div.style.transform = 'translate(0px)';
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getComputedStyle(div).transform;
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div.style.transition = 'transform 100s';
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div.style.transform = 'translate(10px)';
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getComputedStyle(div).transform;
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const animation = div.getAnimations()[0];
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assert_true(animation.pending, 'Animation is initially pending');
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const readyPromise = animation.ready;
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// Now remove transform from transition-property and flush styles
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div.style.transitionProperty = 'none';
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getComputedStyle(div).transitionProperty;
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try {
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await readyPromise;
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assert_unreached('ready promise was fulfilled');
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} catch (err) {
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assert_equals(err.name, 'AbortError',
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'ready promise is rejected with AbortError');
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assert_equals(animation.playState, 'idle',
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'Animation is idle after transition was canceled');
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}
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}, 'ready promise is rejected when a transition is canceled by updating'
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+ ' transition-property');
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promise_test(async t => {
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const div = addDiv(t);
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// Set up pending transition
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div.style.marginLeft = '0px';
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '100px';
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getComputedStyle(div).marginLeft;
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const animation = div.getAnimations()[0];
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assert_true(animation.pending, 'Animation is initially pending');
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const readyPromise = animation.ready;
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// Update the transition to animate to something not-interpolable
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div.style.marginLeft = 'auto';
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getComputedStyle(div).marginLeft;
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try {
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await readyPromise;
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assert_unreached('ready promise was fulfilled');
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} catch (err) {
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assert_equals(err.name, 'AbortError',
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'ready promise is rejected with AbortError');
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assert_equals(animation.playState, 'idle',
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'Animation is idle after transition was canceled');
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}
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}, 'ready promise is rejected when a transition is canceled by changing'
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+ ' the transition property to something not interpolable');
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</script>
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