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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/css/css-transitions/KeyframeEffect-setKeyframes.tentative.html
parentInitial commit. (diff)
downloadfirefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz
firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!doctype html>
+<meta charset=utf-8>
+<title>KeyframeEffect.setKeyframes() for CSS transitions</title>
+<!-- TODO: Add a more specific link for this once it is specified. -->
+<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#csstransition">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/helper.js"></script>
+<div id="log"></div>
+<script>
+'use strict';
+
+test(t => {
+ const div = addDiv(t);
+
+ div.style.left = '0px';
+ getComputedStyle(div).transitionProperty;
+ div.style.transition = 'left 100s';
+ div.style.left = '100px';
+
+ const transition = div.getAnimations()[0];
+ transition.effect.setKeyframes({ left: ['200px', '300px', '100px'] });
+
+ assert_equals(getComputedStyle(div).left, '200px');
+}, 'Keyframes set using setKeyframes() are reflected in computed style for'
+ + ' a running transition');
+
+test(t => {
+ const div = addDiv(t);
+
+ div.style.left = '0px';
+ getComputedStyle(div).transitionProperty;
+ div.style.transition = 'left 100s';
+ div.style.left = '100px';
+
+ const transition = div.getAnimations()[0];
+ transition.effect.setKeyframes({ top: ['0px', '100px', '300px'] });
+
+ assert_equals(transition.transitionProperty, 'left');
+}, 'A transition with replaced keyframes still returns the original'
+ + ' transitionProperty');
+
+test(t => {
+ const div = addDiv(t);
+
+ div.style.left = '0px';
+ getComputedStyle(div).transitionProperty;
+ div.style.transition = 'left 100s';
+ div.style.left = '100px';
+
+ const transition = div.getAnimations()[0];
+ transition.effect.setKeyframes({ });
+
+ assert_equals(transition.transitionProperty, 'left');
+}, 'A transition with no keyframes still returns the original'
+ + ' transitionProperty');
+
+function retarget_test(description, newKeyframes, reversed_start) {
+ test(t => {
+ const div = addDiv(t);
+
+ div.style.left = '0px';
+ getComputedStyle(div).transitionProperty;
+ div.style.transition = 'left 100s linear';
+ div.style.left = '100px';
+
+ const transition = div.getAnimations()[0];
+ transition.currentTime = 50 * MS_PER_SEC;
+ transition.effect.setKeyframes(newKeyframes);
+
+ // Reverse transition
+ div.style.left = '0px';
+ const reversedTransition = div.getAnimations()[0];
+
+ assert_approx_equals(
+ reversedTransition.effect.getComputedTiming().activeDuration,
+ 50 * MS_PER_SEC, 1,
+ "The reversed transition has correctly reduced duration"
+ );
+ assert_equals(reversedTransition.effect.getKeyframes()[0].left, reversed_start,
+ "The reversed transition starts at the expected point");
+ }, description);
+}
+
+retarget_test("A transition with replaced keyframes animating the same property " +
+ "still exhibits normal reversing behavior.",
+ {left: ['200px', '300px', '100px']}, '300px');
+
+retarget_test("A transition with replaced keyframes animating a different property " +
+ "still exhibits normal reversing behavior (reversing from the base value).",
+ {top: ['200px', '300px', '100px']}, '100px');
+
+retarget_test("A transition with replaced keyframes animating nothing " +
+ "still exhibits normal reversing behavior (reversing from the base value).",
+ {}, '100px');
+
+test(t => {
+ const div = addDiv(t);
+
+ // Initialize the style.
+ div.style.left = '100px';
+ div.style.top = '100px';
+ div.style.transition = 'left 100s linear, top 100s linear';
+ getComputedStyle(div).left;
+
+ // Start some transitions.
+ div.style.left ='200px';
+ div.style.top = '200px';
+ const transitions = div.getAnimations();
+
+ // Hand control of the left property over to top's transition. The composite
+ // ordering of the animations is 'left' then 'top' since the transitions were
+ // generated in the same transition generation and follow Unicode ordering.
+ assert_equals(transitions[0].transitionProperty, 'left');
+ transitions[0].effect.setKeyframes({});
+ transitions[1].effect.setKeyframes([
+ {left: '100px', top: '100px'},
+ {left: '400px', top: '200px'}])
+ getComputedStyle(div).left;
+
+ // These updates form a single style change, equivalent to setting times and
+ // then setting left.
+ transitions[0].currentTime = 50 * MS_PER_SEC;
+ div.style.left ='100px';
+ transitions[1].currentTime = 60 * MS_PER_SEC;
+
+ // As there was a style change event, the new 'left' transition now has a
+ // higher value for the transition generation than the 'top' transition,
+ // reversing the order of the transitions returned by getAnimations.
+ const reversedTransition = div.getAnimations()[1];
+ assert_equals(reversedTransition.transitionProperty, 'left',
+ "A reversed transition on left is produced");
+
+ assert_approx_equals(
+ reversedTransition.effect.getComputedTiming().activeDuration,
+ 50 * MS_PER_SEC, 1,
+ "The reversed transition has correctly reduced duration (based on the " +
+ "original left transition).");
+
+ assert_equals(reversedTransition.effect.getKeyframes()[0].left, '280px',
+ "The reversed transition gets its start value from the other " +
+ "transition controlling left");
+
+}, "A transition with replaced keyframes animating nothing on a property " +
+ "being controlled by another modified transition exhibits normal " +
+ "reversing behavior and reverses from the other transition's current " +
+ "value.");
+
+test(t => {
+ const div = addDiv(t);
+
+ // Initialize the style.
+ div.style.left = '100px';
+ div.style.transition = 'left 100s linear';
+ getComputedStyle(div).left;
+
+ // Start the transtion.
+ div.style.left ='200px';
+ const transition = div.getAnimations()[0];
+
+ // Update the keyframes and advance to the midpoint of the animation.
+ transition.effect.setKeyframes([
+ { offset: 0, left: '-50px', composite: 'add', easing: 'linear'}]);
+ transition.currentTime = 50 * MS_PER_SEC;
+ assert_equals(getComputedStyle(div).left, '175px',
+ 'The computed style is based on the updated keyframes');
+
+ div.style.left = '100px';
+ const reversedTransition = div.getAnimations()[0];
+ assert_equals(reversedTransition.effect.getKeyframes()[0].left, '175px',
+ 'The start value matches the \'before change\' value');
+
+}, 'A transition with replaced kefyrames and composite \'add\' exhibits ' +
+ 'normal reversing behavior, and the effect is not double counted when ' +
+ 'calculating the before change style');
+
+</script>
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