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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>displaystyle</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#css-styling">
<link rel="help" href="https://w3c.github.io/mathml-core/#the-displaystyle-and-scriptlevel-attributes">
<link rel="help" href="https://w3c.github.io/mathml-core/#the-math-style-property">
<meta name="assert" content="Verify that the correct inheritance of the displaystyle value by measuring the size of large operators.">
<style>
@font-face {
font-family: TestFont;
src: url("/fonts/math/largeop-displayoperatorminheight5000.woff");
}
math {
font-family: TestFont;
font-size: 10px;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/mathml/support/attribute-values.js"></script>
<script src="/mathml/support/fonts.js"></script>
<script>
setup({ explicit_done: true });
var emToPx = 10 / 1000; // font-size: 10px, font.em = 1000
var epsilon = 5;
function verify_displaystyle(elementId, displaystyle, description) {
var expectedSize = (displaystyle ? 5000 : 1000) * emToPx;
var elementSize = document.getElementById(elementId).
getBoundingClientRect().height;
assert_approx_equals(elementSize, expectedSize, epsilon, description);
}
window.addEventListener("load", () => { loadAllFonts().then(runTests); });
function runTests() {
for (transform in AttributeValueTransforms) {
TransformAttributeValues(transform, ["display", "displaystyle"]);
test(function() {
verify_displaystyle("math_default", false, "default");
verify_displaystyle("math_false", false, "explicit displaystyle false");
verify_displaystyle("math_true", true, "explicit displaystyle true");
}, `math element (${transform})`);
test(function() {
verify_displaystyle("math_inline", false, "explicit display inline");
verify_displaystyle("math_block", true, "explicit display block");
verify_displaystyle("math_block_false", false, "explicit display block and displaystyle false");
verify_displaystyle("math_block_true", true, "explicit display block and displaystyle true");
verify_displaystyle("math_inline_false", false, "explicit display inline and displaystyle false");
verify_displaystyle("math_inline_true", true, "explicit display inline and displaystyle true");
}, `math element (explicit display, ${transform})`);
test(function() {
verify_displaystyle("mstyle_false", false, "explicit displaystyle false");
verify_displaystyle("mstyle_true", true, "explicit displaystyle true");
}, `mstyle element (${transform})`);
test(function() {
verify_displaystyle("mtable_default", false, "default");
verify_displaystyle("mtable_false", false, "explicit displaystyle false");
verify_displaystyle("mtable_true", true, "explicit displaystyle true");
}, `mtable element (${transform})`);
test(function() {
verify_displaystyle("mfrac_sibling", true, "sibling");
verify_displaystyle("mfrac_numerator", false, "numerator");
verify_displaystyle("mfrac_denominator", false, "denominator");
}, `mfrac element (${transform})`);
test(function() {
verify_displaystyle("mroot_base", true, "base");
verify_displaystyle("mroot_index", false, "index");
}, `mroot element (${transform})`);
test(function() {
verify_displaystyle("msub_base", true, "base");
verify_displaystyle("msub_subscript", false, "subscript");
}, `msub element (${transform})`);
test(function() {
verify_displaystyle("msup_base", true, "base");
verify_displaystyle("msup_supscript", false, "supscript");
}, `msup element (${transform})`);
test(function() {
verify_displaystyle("msubsup_base", true, "base");
verify_displaystyle("msubsup_subscript", false, "subscript");
verify_displaystyle("msubsup_supscript", false, "supscript");
}, `msubsup element (${transform})`);
test(function() {
verify_displaystyle("munder_base", true, "base");
verify_displaystyle("munder_underscript", false, "underscript");
}, `munder element (${transform})`);
test(function() {
verify_displaystyle("mover_base", true, "base");
verify_displaystyle("mover_overscript", false, "overscript");
}, `mover element (${transform})`);
test(function() {
verify_displaystyle("munderover_base", true, "base");
verify_displaystyle("munderover_underscript", false, "underscript");
verify_displaystyle("munderover_overscript", false, "overscript");
}, `munderover element (${transform})`);
}
done();
}
</script>
</head>
<body>
<div id="log"></div>
<math><mo id="math_default">⫿</mo></math>
<math display="inline"><mo id="math_inline">⫿</mo></math>
<math display="block"><mo id="math_block">⫿</mo></math>
<math displaystyle="false"><mo id="math_false">⫿</mo></math>
<math displaystyle="true"><mo id="math_true">⫿</mo></math>
<math display="block" displaystyle="false">
<mo id="math_block_false">⫿</mo>
</math>
<math display="block" displaystyle="true">
<mo id="math_block_true">⫿</mo>
</math>
<math display="inline" displaystyle="false">
<mo id="math_inline_false">⫿</mo>
</math>
<math display="inline" displaystyle="true">
<mo id="math_inline_true">⫿</mo>
</math>
<math><mstyle displaystyle="false"><mo id="mstyle_false">⫿</mo></mstyle></math>
<math><mstyle displaystyle="true"><mo id="mstyle_true">⫿</mo></mstyle></math>
<math displaystyle="true"><mtable><mtr><mtd><mo id="mtable_default">⫿</mo></mtd></mtr></mtable></math>
<math><mtable displaystyle="true"><mtr><mtd><mo id="mtable_true">⫿</mo></mtd></mtr></mtable></math>
<math displaystyle="true"><mtable displaystyle="false"><mtr><mtd><mo id="mtable_false">⫿</mo></mtd></mtr></mtable></math>
<math displaystyle="true"><mo id="mfrac_sibling">⫿</mo><mfrac><mo id="mfrac_numerator">⫿</mo><mo id="mfrac_denominator">⫿</mo></mfrac></math>
<math displaystyle="true"><mroot><mo id="mroot_base">⫿</mo><mo id="mroot_index">⫿</mo></mroot></math>
<math displaystyle="true"><msub><mo id="msub_base">⫿</mo><mo id="msub_subscript">⫿</mo></msub></math>
<math displaystyle="true"><msup><mo id="msup_base">⫿</mo><mo id="msup_supscript">⫿</mo></msup></math>
<math displaystyle="true"><msubsup><mo id="msubsup_base">⫿</mo><mo id="msubsup_subscript">⫿</mo><mo id="msubsup_supscript">⫿</mo></msubsup></math>
<math displaystyle="true"><mmultiscripts><mo id="mmultiscripts_base">⫿</mo><mo id="mmultiscripts_subscript">⫿</mo><mo id="mmultiscripts_supscript">⫿</mo><mprescripts/><mo id="mmultiscripts_presubscript">⫿</mo><mo id="mmultiscripts_presupscript">⫿</mo></mmultiscripts></math>
<math displaystyle="true"><munder><mo id="munder_base">⫿</mo><mo id="munder_underscript">⫿</mo></munder></math>
<math displaystyle="true"><mover><mo id="mover_base">⫿</mo><mo id="mover_overscript">⫿</mo></mover></math>
<math displaystyle="true"><munderover><mo id="munderover_base">⫿</mo><mo id="munderover_underscript">⫿</mo><mo id="munderover_overscript">⫿</mo></munderover></math>
</body>
</html>
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