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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>MathML inside foreignObject</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#html-and-svg">
<meta name="assert" content="Verify that MathML can be used inside a foreignObject element.">
<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 scale = 2;
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());
// The values of width and height are inverted (because of the
// rotation) and multiplied by the scale factor.
assert_approx_equals(num.height, 30 * scale, epsilon, "numerator width");
assert_approx_equals(num.width, 40 * scale, epsilon, "numerator height");
assert_approx_equals(denom.height, 50 * scale, epsilon, "numerator width");
assert_approx_equals(denom.width, 60 * scale, epsilon, "numerator height");
}, "mspace layout in SVG foreignObject");
test(function() {
// The horizontal/vertical metrics are inverted (because of the
// rotation) and multiplied by the scale factor.
assert_true(MathMLFeatureDetection.has_mfrac());
assert_greater_than_equal(num.right - denom.left,
(40 + 60) * scale,
"numerator is on the right of denominator");
assert_approx_equals((num.top + num.bottom) / 2,
(denom.top + denom.bottom) / 2,
epsilon, "numerator and denominator are vertically aligned");
}, "mfrac layout in SVG foreignObject");
done();
});
</script>
</head>
<body>
<div id="log"></div>
<svg width="400px" height="400px">
<g transform="rotate(90, 200, 200) scale(2)">
<foreignObject width="400px" height="400px"
requiredExtensions="http://www.w3.org/1998/Math/MathML">
<math>
<mfrac id="mfrac">
<mspace width="30px" height="40px" style="background: cyan"></mspace>
<mspace width="50px" height="60px" style="background: yellow"></mspace>
</mfrac>
</math>
</foreignObject>
</g>
</svg>
</body>
</html>
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