<!DOCTYPE html>
<meta charset="utf-8">
<title>summary element: click behavior</title>
<link rel="author" title="Mu-An Chiou" href="mailto:hi@muan.co">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#the-summary-element">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>

<body>
  <div id="log"></div>

  <details id="details">
    <summary id="summary">Summary</summary>
    <p>Contents</p>
  </details>
</body>

<script>
  // This behavior is not specified by HTML standards, but setting focus on
  // clicked summary tag is the current behavior on Chrome, Safari, and Firefox
  // in both Windows and macOS.
  async_test(t => {
    const details = document.getElementById("details")
    const summary = document.getElementById("summary")

    t.step_timeout(() => {
      details.addEventListener("toggle", t.step_func_done(function () {
        assert_equals(details.open, true, "details should be open")
        assert_equals(document.activeElement, summary, "active element should be summary")
        t.done()
      }))

      new test_driver.click(summary)
    }, 200)
  }, "clicking on summary should open details and set focus on summary")
</script>
