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[Gecko Bug 1916988] Support CSS width/height properties on MathML elements. #48375

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merged 1 commit into from
Oct 1, 2024
Merged

[Gecko Bug 1916988] Support CSS width/height properties on MathML elements. #48375

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32 changes: 31 additions & 1 deletion mathml/relations/css-styling/width-height-001.html
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
<meta charset="utf-8">
<title>width, height, inline-size and block-size</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#layout-algorithms">
<meta name="assert" content="Verify that width, height, inline-size and block-size properties are ignored.">
<meta name="assert" content="Verify that width, height, inline-size and block-size properties set the size of the content box.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/mathml/support/feature-detection.js"></script>
Expand All @@ -30,6 +30,7 @@
document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;"><math><mrow>${MathMLFragments[tag]}</mrow></math></div>`);
let div = document.body.lastElementChild;
let element = FragmentHelper.element(div.firstElementChild);
FragmentHelper.forceNonEmptyDescendants(element);

test(function() {
assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
Expand All @@ -49,6 +50,35 @@
assert_approx_equals(box.height, 700, epsilon, "height");
}, `inline-size and block-size properties on ${tag}`);

// Test that if we specify a size smaller than the content, then
// it is used too. Note that we skip mtable, which follows CSS
// tables rules and behave differently in that case.
if (tag != "mtable") {
test(function() {
assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
var style = `width: 2px; height: 1px;`;
element.setAttribute("style", style);
let box = element.getBoundingClientRect();
assert_approx_equals(box.width, 2, epsilon, "width");
assert_approx_equals(box.height, 1, epsilon, "height");
}, `width and height properties on ${tag} (content overflowing)`);
}

div.style = "display: none;"; // Hide the div after measurement.

document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;"><div style="display: inline-block"><math><mrow>${MathMLFragments[tag]}</mrow></math></div></div>`);
let shrinkWrapDiv = document.body.lastElementChild.firstElementChild;
element = FragmentHelper.element(shrinkWrapDiv.firstElementChild);
FragmentHelper.forceNonEmptyDescendants(element);

test(function() {
assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
var style = `width: 300px;`;
element.setAttribute("style", style);
let box = shrinkWrapDiv.getBoundingClientRect();
assert_approx_equals(box.width, 300, epsilon);
}, `width property on ${tag} (preferred width)`);

div.style = "display: none;"; // Hide the div after measurement.
}

Expand Down
63 changes: 62 additions & 1 deletion mathml/relations/css-styling/width-height-004.html
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,6 @@
}
[data-name] {
width: 7em;
height: 3em;
border: 1px solid blue;
}
</style>
Expand Down Expand Up @@ -64,6 +63,18 @@
<mtext>X</mtext>
</mfrac>
</math>
<math>
<mfrac data-name="mfrac (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</mfrac>
</math>
<math dir="rtl">
<mfrac data-name="RTL mfrac (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</mfrac>
</math>
</div>

<div class="test">
Expand All @@ -79,6 +90,18 @@
<mtext>X</mtext>
</mfrac>
</math>
<math>
<mfrac linethickness="0" data-name="mfrac without bar (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</mfrac>
</math>
<math dir="rtl">
<mfrac linethickness="0" data-name="RTL mfrac without bar (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</mfrac>
</math>
</div>

<div class="test">
Expand All @@ -94,6 +117,18 @@
<mtext>X</mtext>
</munder>
</math>
<math>
<munder data-name="munder (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</munder>
</math>
<math dir="rtl">
<munder data-name="RTL munder (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</munder>
</math>
</div>

<div class="test">
Expand All @@ -109,6 +144,18 @@
<mtext>X</mtext>
</mover>
</math>
<math>
<mover data-name="mover (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</mover>
</math>
<math dir="rtl">
<mover data-name="RTL mover (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</mover>
</math>
</div>

<div class="test">
Expand All @@ -126,6 +173,20 @@
<mtext>X</mtext>
</munderover>
</math>
<math>
<munderover data-name="munderover (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</munderover>
</math>
<math dir="rtl">
<munderover data-name="RTL munderover (horizontal overflow)">
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
<mtext>XXXXXXXXXXXX</mtext>
</munderover>
</math>
</div>

</body>
Expand Down
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