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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Basic table alignment</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#table-or-matrix-mtable">
<meta name="assert" content="Verify alignment of cells with block elements in basic 2x2, 4x3 and 3x4 math tables.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/mathml/support/feature-detection.js"></script>
<script>
setup({ explicit_done: true });
window.addEventListener("load", runTests);
function runTests() {
var epsilon = 1;
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
const ascents = [40, 0, 20, 30, 10, 80, 0, 40, 70, 30];
const row = document.getElementById("vertical").firstElementChild;
const cells = Array.from(row.getElementsByTagName("mtd"));
for (var i = 0; i < cells.length - 1; i++) {
var space1 = cells[i].firstElementChild.firstElementChild.getBoundingClientRect();
var space2 = cells[i + 1].firstElementChild.firstElementChild.getBoundingClientRect();
assert_approx_equals(space1.top + ascents[i],
space2.top + ascents[i + 1],
epsilon,
`Baselines of cells ${i} and ${i + 1} should be aligned.`);
}
}, `Vertical alignment of cells`);
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
const table = document.getElementById("horizontal");
const rows = Array.from(table.getElementsByTagName("mtr"));
for (var j = 0; j < rows.length - 1; j++) {
var space1 = rows[j].firstElementChild.firstElementChild.firstElementChild.getBoundingClientRect();
var space2 = rows[j + 1].firstElementChild.firstElementChild.firstElementChild.getBoundingClientRect();
assert_approx_equals((space1.left + space1.right) / 2,
(space2.left + space2.right) / 2,
epsilon,
`Baselines of cells ${j} and ${j + 1} should be aligned.`);
}
}, `Horizontal alignment of cells`);
done();
}
</script>
</head>
<body>
<div id="log"></div>
<p>
<math>
<mtable id="vertical">
<mtr>
<mtd>
<mrow><mspace width="10px" height="40px" depth="0px" style="background: lightblue;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="0px" depth="40px" style="background: lightgreen;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="20px" depth="20px" style="background: cyan;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="30px" depth="10px" style="background: purple;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="10px" depth="30px" style="background: orange;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="80px" depth="0px" style="background: blue;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="0px" depth="80px" style="background: green;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="40px" depth="40px" style="background: yellow;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="70px" depth="30px" style="background: red;"></mspace></mrow>
</mtd>
<mtd>
<mrow><mspace width="10px" height="30px" depth="70px" style="background: black;"></mspace></mrow>
</mtd>
</mtr>
</mtable>
</math>
</p>
<p>
<math>
<mtable id="horizontal">
<mtr>
<mtd>
<mrow><mspace width="10px" height="10px" style="background: lightblue;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="40px" height="10px" style="background: lightgreen;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="30px" height="10px" style="background: cyan;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="20px" height="10px" style="background: purple;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="50px" height="10px" style="background: orange;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="100px" height="10px" style="background: blue;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="90px" height="10px" style="background: green;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="70px" height="10px" style="background: yellow;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="80px" height="10px" style="background: red;"></mspace></mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow><mspace width="40px" height="10px" style="background: black;"></mspace></mrow>
</mtd>
</mtr>
</mtable>
</math>
</p>
</body>
</html>
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