| <!doctype html> |
| <meta charset=utf-8> |
| <title>CSSTransition.effect</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'; |
| |
| function singleFrame() { |
| return new Promise((resolve, reject) => { |
| requestAnimationFrame(resolve); |
| }); |
| } |
| |
| test(t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| const transition = div.getAnimations()[0]; |
| |
| transition.effect = null; |
| |
| assert_equals(transition.transitionProperty, 'left'); |
| }, 'After setting a transition\'s effect to null, it still reports the' |
| + ' original transition property'); |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| const transition = div.getAnimations()[0]; |
| await transition.ready; |
| |
| transition.effect = null; |
| assert_equals(transition.playState, 'finished'); |
| }, 'After setting a transition\'s effect to null, it becomes finished'); |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| const transition = div.getAnimations()[0]; |
| await transition.ready; |
| |
| transition.effect = null; |
| assert_equals(getComputedStyle(div).left, '100px'); |
| }, 'After setting a transition\'s effect to null, style is updated'); |
| |
| // This is a regression test for https://crbug.com/964113, where Chromium would |
| // crash if the running transition's effect was set to null and a new transition |
| // was started before the running one could finish. |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| assert_equals(div.getAnimations().length, 1); |
| |
| const transition = div.getAnimations()[0]; |
| await transition.ready; |
| |
| // Without yielding to the rendering loop, set the current transition's |
| // effect to null and start a new transition. This should work correctly. |
| transition.effect = null; |
| |
| div.style.left = '150px'; |
| |
| // This will run style update. |
| const animations = div.getAnimations(); |
| assert_equals(animations.length, 1); |
| |
| const new_transition = animations[0]; |
| await new_transition.ready; |
| |
| assert_not_equals(getComputedStyle(div).left, '150px'); |
| }, 'After setting a transition\'s effect to null, a new transition can be started'); |
| |
| // This is a regression test for https://crbug.com/992668, where Chromium would |
| // crash if the running transition's effect was set to null and the transition |
| // was interrupted before it could finish due to the null effect. |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| assert_equals(div.getAnimations().length, 1); |
| |
| const transition = div.getAnimations()[0]; |
| await transition.ready; |
| |
| // The transition needs to have a non-zero currentTime for the interruption |
| // reversal logic to apply. |
| while (getComputedStyle(div).left == '0px') { |
| await singleFrame(); |
| } |
| assert_not_equals(transition.currentTime, 0); |
| |
| // Without yielding to the rendering loop, set the current transition's |
| // effect to null and interrupt the transition. This should work correctly. |
| transition.effect = null; |
| div.style.left = '0px'; |
| |
| // Yield to the rendering loop. This should not crash. |
| await singleFrame(); |
| }, 'After setting a transition\'s effect to null, it should be possible to ' |
| + 'interrupt that transition'); |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| div.style.width = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| const transition = div.getAnimations()[0]; |
| await transition.ready; |
| |
| transition.currentTime = 50 * MS_PER_SEC; |
| transition.effect = new KeyframeEffect(div, |
| { left: [ '0px' , '100px'] }, |
| 20 * MS_PER_SEC); |
| |
| assert_equals(transition.playState, 'finished'); |
| }, 'After setting a new keyframe effect with a shorter duration,' |
| + ' the transition becomes finished'); |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| div.style.width = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| const transition = div.getAnimations()[0]; |
| transition.effect = new KeyframeEffect(div, |
| { marginLeft: [ '0px' , '100px'] }, |
| 100 * MS_PER_SEC); |
| assert_equals(transition.transitionProperty, 'left'); |
| }, 'After setting a new keyframe effect targeting different properties,' |
| + ' the transition continues to report the original transition property'); |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| div.style.left = '0px'; |
| div.style.width = '0px'; |
| |
| div.style.transition = 'left 100s'; |
| getComputedStyle(div).left; |
| div.style.left = '100px'; |
| |
| const transition = div.getAnimations()[0]; |
| assert_true(transition.pending); |
| |
| transition.effect = new KeyframeEffect(div, |
| { marginLeft: [ '0px' , '100px'] }, |
| 100 * MS_PER_SEC); |
| assert_true(transition.pending); |
| |
| // As a sanity check, check that the transition actually exits the |
| // pending state. |
| await transition.ready; |
| assert_false(transition.pending); |
| }, 'After setting a new keyframe effect on a play-pending transition,' |
| + ' the transition remains pending'); |
| |
| 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 = null; |
| |
| assert_equals(transition.transitionProperty, 'left'); |
| }, 'A transition with no effect 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]; |
| |
| // Seek to the middle and get the portion. |
| transition.currentTime = 50 * MS_PER_SEC; |
| const portion = transition.effect.getComputedTiming().progress; |
| |
| // Replace the effect but keep the original timing |
| transition.effect = new KeyframeEffect( |
| div, |
| { top: ['200px', '300px', '100px'] }, |
| transition.effect.getTiming() |
| ); |
| |
| // Reverse the transition |
| div.style.left = '0px'; |
| const reversedTransition = div.getAnimations()[0]; |
| |
| const expectedDuration = 100 * MS_PER_SEC * portion; |
| assert_approx_equals( |
| reversedTransition.effect.getComputedTiming().activeDuration, |
| expectedDuration, |
| 1 |
| ); |
| }, 'A transition with a replaced effect still exhibits the regular transition' |
| + ' reversing behavior'); |
| |
| </script> |
