Blitz - WPT: slider-switch.html

wpt / svg / animations / slider-switch.html
Enable JavaScript in test iframe
<!doctype html>
<title>Check correct event bases for onclick</title>
<meta charset="utf-8">
<link rel="help" href="https://w3c.github.io/svgwg/svg2-draft/single-page.html#interact-EventAttributes">
<link rel="author" title="Edvard Thörnros" href="mailto:edvardt@opera.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<svg width="200" height="100">
  <rect x="0" y="0" width="100" height="100" id="a" fill="#0AA">
    <set begin="a.click" attributeName="display" to="none" fill="freeze"/>
    <set begin="b.click" attributeName="display" to="block" fill="freeze"/>
  </rect>
  <rect x="100" y="0" width="100" height="100" id="b" display="none" fill="#A0A">
    <set begin="a.click" attributeName="display" to="block" fill="freeze"/>
    <set begin="b.click" attributeName="display" to="none" fill="freeze"/>
  </rect>
</svg>
<script>
  let clicks_remaining = 2;
  let a = document.querySelector("#a");
  let b = document.querySelector("#b");
  function perform_clicks(t) {
    t.step_timeout(function() {
      a.dispatchEvent(new Event("click"));
      t.step_timeout(function() {
        b.dispatchEvent(new Event("click"));
      }, 20);
    }, 20);
  }
  async_test(t => {
    let observer = document.querySelector("#b > set + set");
    observer.addEventListener('beginEvent', t.step_func(function() {
      if (clicks_remaining == 0) {
        assert_equals(window.getComputedStyle(a).display, "block");
        assert_equals(window.getComputedStyle(b).display, "none");
        t.done();
        return;
      }
      perform_clicks(t);
      clicks_remaining--;
    }));
    window.onload = t.step_func(() => {
      perform_clicks(t);
      clicks_remaining--;
    });
  });
</script>