| <!doctype html> |
| <meta charset=utf-8> |
| <title>CSSTransition.ready</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'; |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| |
| // Set up pending transition |
| div.style.transform = 'translate(0px)'; |
| getComputedStyle(div).transform; |
| div.style.transition = 'transform 100s'; |
| div.style.transform = 'translate(10px)'; |
| getComputedStyle(div).transform; |
| |
| const animation = div.getAnimations()[0]; |
| assert_true(animation.pending, 'Animation is initially pending'); |
| const readyPromise = animation.ready; |
| |
| // Now remove transform from transition-property and flush styles |
| div.style.transitionProperty = 'none'; |
| getComputedStyle(div).transitionProperty; |
| |
| try { |
| await readyPromise; |
| assert_unreached('ready promise was fulfilled'); |
| } catch (err) { |
| assert_equals(err.name, 'AbortError', |
| 'ready promise is rejected with AbortError'); |
| assert_equals(animation.playState, 'idle', |
| 'Animation is idle after transition was canceled'); |
| } |
| }, 'ready promise is rejected when a transition is canceled by updating' |
| + ' transition-property'); |
| |
| promise_test(async t => { |
| const div = addDiv(t); |
| |
| // Set up pending transition |
| div.style.marginLeft = '0px'; |
| getComputedStyle(div).marginLeft; |
| div.style.transition = 'margin-left 100s'; |
| div.style.marginLeft = '100px'; |
| getComputedStyle(div).marginLeft; |
| |
| const animation = div.getAnimations()[0]; |
| assert_true(animation.pending, 'Animation is initially pending'); |
| const readyPromise = animation.ready; |
| |
| // Update the transition to animate to something not-interpolable |
| div.style.marginLeft = 'auto'; |
| getComputedStyle(div).marginLeft; |
| |
| try { |
| await readyPromise; |
| assert_unreached('ready promise was fulfilled'); |
| } catch (err) { |
| assert_equals(err.name, 'AbortError', |
| 'ready promise is rejected with AbortError'); |
| assert_equals(animation.playState, 'idle', |
| 'Animation is idle after transition was canceled'); |
| } |
| }, 'ready promise is rejected when a transition is canceled by changing' |
| + ' the transition property to something not interpolable'); |
| |
| </script> |