59 lines
2.6 KiB
HTML
59 lines
2.6 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8"/>
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<title>MathML inside foreignObject</title>
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<link rel="help" href="https://w3c.github.io/mathml-core/#html-and-svg">
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<meta name="assert" content="Verify that MathML can be used inside a foreignObject element.">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/mathml/support/feature-detection.js"></script>
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<script>
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setup({ explicit_done: true });
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window.addEventListener("DOMContentLoaded", function() {
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var scale = 2;
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var epsilon = 1;
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var mfrac = document.getElementById("mfrac");
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var num = mfrac.firstElementChild.getBoundingClientRect();
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var denom = mfrac.lastElementChild.getBoundingClientRect();
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test(function() {
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assert_true(MathMLFeatureDetection.has_mspace());
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// The values of width and height are inverted (because of the
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// rotation) and multiplied by the scale factor.
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assert_approx_equals(num.height, 30 * scale, epsilon, "numerator width");
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assert_approx_equals(num.width, 40 * scale, epsilon, "numerator height");
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assert_approx_equals(denom.height, 50 * scale, epsilon, "numerator width");
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assert_approx_equals(denom.width, 60 * scale, epsilon, "numerator height");
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}, "mspace layout in SVG foreignObject");
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test(function() {
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// The horizontal/vertical metrics are inverted (because of the
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// rotation) and multiplied by the scale factor.
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assert_true(MathMLFeatureDetection.has_mfrac());
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assert_greater_than_equal(num.right - denom.left,
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(40 + 60) * scale,
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"numerator is on the right of denominator");
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assert_approx_equals((num.top + num.bottom) / 2,
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(denom.top + denom.bottom) / 2,
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epsilon, "numerator and denominator are vertically aligned");
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}, "mfrac layout in SVG foreignObject");
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done();
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});
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</script>
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</head>
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<body>
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<div id="log"></div>
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<svg width="400px" height="400px">
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<g transform="rotate(90, 200, 200) scale(2)">
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<foreignObject width="400px" height="400px"
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requiredExtensions="http://www.w3.org/1998/Math/MathML">
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<math>
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<mfrac id="mfrac">
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<mspace width="30px" height="40px" style="background: cyan"></mspace>
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<mspace width="50px" height="60px" style="background: yellow"></mspace>
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</mfrac>
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</math>
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</foreignObject>
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</g>
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</svg>
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</body>
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</html>
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