event-trigger-before-handlers.tentative.html (1869B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <link rel="help" href="https://drafts.csswg.org/web-animations-2#animation-trigger"> 5 <script src="/resources/testdriver.js"></script> 6 <script src="/resources/testdriver-vendor.js"></script> 7 <script src="/resources/testharness.js"></script> 8 <script src="/resources/testharnessreport.js"></script> 9 <script src="/web-animations/testcommon.js"></script> 10 </head> 11 <body> 12 <div id="event-target">Click me!</div> 13 14 <div id="animation-target">Watch me!</div> 15 <script> 16 promise_test(async (test) => { 17 const eventTarget = document.getElementById("event-target"); 18 const animationTarget = document.getElementById("animation-target"); 19 const ANIMATION_DURATION_MS = 10000; 20 const animation = new Animation( 21 new KeyframeEffect( 22 animationTarget, 23 [ 24 { transform: "translateY(0)" }, 25 { transform: "translateY(3rem)" }, 26 ], 27 { duration: ANIMATION_DURATION_MS, fill: "both" } 28 )); 29 let listenerRan = false; 30 eventTarget.addEventListener("click", evt => { 31 listenerRan = true; 32 assert_equals( 33 animation.playState, "running", 34 "Animation is already running when event listener runs"); 35 }); 36 const trigger = new EventTrigger({ 37 eventType: "click", 38 eventTarget: eventTarget 39 }); 40 trigger.addAnimation(animation, "play"); 41 await waitForAnimationFrames(2); 42 assert_equals(animation.playState, "idle", "animation is idle"); 43 await test_driver.click(eventTarget); 44 await waitForAnimationFrames(1); 45 assert_true(listenerRan, "Click event listener ran."); 46 }, "Animation triggers are handled before registered event listeners"); 47 </script> 48 </body> 49 </html>