content-editable.html

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This WPT test may be referenced by the following Test IDs:
- /mathml/relations/html5-tree/content-editable.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8"/>

<title>MathML inside content-editable</title>

<link rel="help" href="https://w3c.github.io/mathml-core/#html-and-svg">

<meta name="assert" content="Verify that putting MathML inside a content-editable div shouldn't affect its layout.">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/mathml/support/feature-detection.js"></script>

<script>

  setup({ explicit_done: true });

  window.addEventListener("DOMContentLoaded", function() {

      var epsilon = 1;

      var mfrac = document.getElementById("mfrac");

      var num = mfrac.firstElementChild.getBoundingClientRect();

      var denom = mfrac.lastElementChild.getBoundingClientRect();

      test(function() {

          assert_true(MathMLFeatureDetection.has_mspace());

          assert_approx_equals(num.width, 30, epsilon, "numerator width");

          assert_approx_equals(num.height, 40, epsilon, "numerator height");

          assert_approx_equals(denom.width, 50, epsilon, "denominator width");

          assert_approx_equals(denom.height, 60, epsilon, "denominator height");

      }, "mspace layout in content-editable div");

      test(function() {

          assert_true(MathMLFeatureDetection.has_mfrac());

          assert_greater_than_equal(denom.bottom - num.top,

                                    (40 + 60),

                                    "numerator is above the denominator");

          assert_approx_equals((num.left + num.right) / 2,

                               (denom.left + denom.right) / 2,

                               epsilon, "numerator and denominator are horizontally aligned");

      }, "mfrac layout in content-editable div");

      done();

});

</script>

</head>

<body>

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

  <div contenteditable="true">

    This is

    <math>

      <mfrac id="mfrac">

        <mspace width="30px" height="40px" style="background: cyan"></mspace>

        <mspace width="50px" height="60px" style="background: yellow"></mspace>

      </mfrac>

    </math>

    a content editable div

  </div>

</body>

</html>