animation-events-prefixed-03.html | Explore in Territory

<!DOCTYPE html>
<title>Tests that prefixed animation events are correctly fired when using html event listeners.</title>
<style>
#box {
  position: relative;
  left: 100px;
  top: 10px;
  height: 100px;
  width: 100px;
  background-color: #999;
}

.animate {
  animation-duration: 0.3s;
  animation-name: anim;
}

@keyframes anim {
  from { left: 200px; }
  to   { left: 300px; }
}
</style>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
var startEventReceived = false;
var endEventReceived = false;

function recordAnimationStart() {
  startEventReceived = true;
}

function recordAnimationEnd() {
  endEventReceived = true;
  document.getElementById('box').className = '';

  document.getElementById('box').offsetTop; // force style recalc

  // Launch again the animation to catch the animation iteration events this time.
  document.getElementById('box').style.animationIterationCount = "infinite";
  document.getElementById('box').className = 'animate';
}

async_test(t => {
  window.addEventListener("load", t.step_func(() => {
    const box = document.getElementById('box');
    box.addEventListener("animationiteration", t.step_func_done(() => {
      assert_true(startEventReceived);
      assert_true(endEventReceived);
    }));
  }));
}, "Prefixed animation events should be fired with html event listeners");
</script>
<div id="box" onwebkitanimationstart="recordAnimationStart();"
onwebkitanimationend="recordAnimationEnd();"class="animate"></div>
chromium/third_party/blink/web_tests/animations/prefixed/animation-events-prefixed-03.html
