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Add test to check painting order of mrow-like elements. #24162

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Jun 16, 2020
Merged

Add test to check painting order of mrow-like elements. #24162

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83 changes: 83 additions & 0 deletions mathml/presentation-markup/mrow/mrow-painting-order-ref.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>mrow painting order (reference)</title>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
.container {
position: absolute;
left: 2em;
top: 10em;
}
math {
font: 50px/1 Ahem;
}
.hidden {
visibility: hidden;
}
</style>
</head>
<body>
<p>This test passes if there is no red and content is stacked such that</p>
<ul>
<li>foreground (dark colors) is above background (light colors)</li>
<li>yellow foreground is above green foreground which is itself above blue foreground</li>
<li>yellow background is above green background which is itself above blue background</li>
</ul>
<!-- Paint lightblue background -->
<div class="container">
<math>
<mrow>
<mrow style="background: lightblue"><mn class="hidden">XXÉ</mn></mrow>
</mrow>
</math>
</div>
<!-- Paint lightgreen background -->
<div class="container">
<math>
<mrow>
<mn class="hidden">XXÉX</mn>
<mrow style="background: lightgreen; margin-inline-start: -3em"><mn style="visibility: hidden">p&#xA0;XXÉ</mn></mrow>
</mrow>
</math>
</div>
<!-- Paint lightyellow background -->
<div class="container">
<math>
<mrow>
<mn class="hidden">XXÉX</mn>
<mn class="hidden" style="margin-inline-start: -3em">p&#xA0;XXÉX</mn>
<mrow style="background: lightyellow; margin-inline-start: -3em"><mn style="visibility: hidden">p&#xA0;X</mn></mrow>
</mrow>
</math>
</div>
<!-- Paint blue foreground -->
<div class="container">
<math>
<mrow>
<mn style="color: blue;">XXÉ</mn>
</mrow>
</math>
</div>
<!-- Paint green foreground -->
<div class="container">
<math>
<mrow>
<mn class="hidden">XXÉX</mn>
<mn style="color: green; margin-inline-start: -3em">p&#xA0;XXÉ</mn>
</mrow>
</math>
</div>
<!-- Paint yellow foreground -->
<div class="container">
<math>
<mrow>
<mn class="hidden">XXÉX</mn>
<mn class="hidden" style="margin-inline-start: -3em">p&#xA0;XXÉX</mn>
<mn style="color: yellow; margin-inline-start: -3em">p&#xA0;X</mn>
</mrow>
</math>
</div>
</body>
</html>
42 changes: 42 additions & 0 deletions mathml/presentation-markup/mrow/mrow-painting-order.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>mrow painting order</title>
<link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.mfenced">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#stacking-contexts">
<link rel="help" href="https://mathml-refresh.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
<meta name="assert" content="Verify in which order the children paint">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<link rel="match" href="mrow-painting-order-ref.html">
<style>
.container {
position: absolute;
left: 2em;
top: 10em;
}
math {
font: 50px/1 Ahem;
}
</style>
</head>
<body>
<p>This test passes if there is no red and content is stacked such that</p>
<ul>
<li>foreground (dark colors) is above background (light colors)</li>
<li>yellow foreground is above green foreground which is itself above blue foreground</li>
<li>yellow background is above green background which is itself above blue background</li>
</ul>
<div class="container">
<math>
<mrow>
<mn style="color: blue; background: lightblue">XXÉ</mn>
<mn style="color: red">X</mn>
<mn style="color: green; background: lightgreen; margin-inline-start: -3em">p&#xA0;XXÉ</mn>
<mn style="color: red">X</mn>
<mn style="color: yellow; background: lightyellow; margin-inline-start: -3em">p&#xA0;X</mn>
</mrow>
</math>
</div>
</body>
</html>