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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Ignored CSS properties</title>
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#css-styling">
<meta name="assert" content="Verify style with ignored properties does not affect MathML layout.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/mathml/support/feature-detection.js"></script>
<script src="/mathml/support/layout-comparison.js"></script>
<script src="/mathml/support/mathml-fragments.js"></script>
<script>
var epsilon = 1;
setup({ explicit_done: true });
window.addEventListener("load", runTests);
function runTests() {
for (tag in MathMLFragments) {
if (!FragmentHelper.isValidChildOfMrow(tag))
continue;
var ignoredProperties = [
"writing-mode: vertical-rl;",
"white-space: normal;",
"float: right;",
"align-content: end; justify-content: end;",
"align-self: end; justify-self: end;",
];
if (tag !== "mtable") {
ignoredProperties.push("width: 100px !important; height: 200px !important;");
}
ignoredProperties.forEach(ignoredStyle => {
document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;">\
<div style="display: inline-block"><math>${MathMLFragments[tag]}</math></div>\
<div style="display: inline-block"><math>${MathMLFragments[tag]}</math></div>\
</div>`);
var div = document.body.lastElementChild;
// Create MathML structure with ignored style properties.
var elementContainer = div.firstElementChild;
var elementContainerWidth = elementContainer.getBoundingClientRect().width;
var element = FragmentHelper.element(elementContainer);
if (!FragmentHelper.isEmpty(tag))
FragmentHelper.forceNonEmptyDescendants(element);
element.setAttribute("style", ignoredStyle);
Array.from(element.getElementsByTagNameNS("*", FragmentHelper.mathml_namespace)).forEach(descendant => {
descendant.setAttribute("style", ignoredStyle);
});
var referenceContainer = div.lastElementChild;
var referenceContainerWidth = referenceContainer.getBoundingClientRect().width;
var reference = FragmentHelper.element(referenceContainer);
if (!FragmentHelper.isEmpty(tag))
FragmentHelper.forceNonEmptyDescendants(reference);
test(function() {
assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
assert_approx_equals(elementContainerWidth, referenceContainerWidth, epsilon);
}, `${tag} preferred width calculation is not affected by ${ignoredStyle}`);
test(function() {
assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
compareLayout(element, reference, epsilon);
}, `${tag} layout is not affected by ${ignoredStyle}`);
div.style = "display: none;"; // Hide the div after measurement.
});
}
done();
}
</script>
</head>
<body>
<div id="log"></div>
</body>
</html>
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