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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>mpadded</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#adjust-space-around-content-mpadded">
<meta name="assert" content="Verify metrics of mpadded element with voffset and lspace">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
setup({ explicit_done: true });
window.addEventListener("load", runTests);
function runTests() {
const contentWidth = 10;
const contentDepth = 15;
const contentHeight = 20;
const epsilon = 1;
test(function() {
Array.from(document.getElementsByClassName("shrink-wrap")).forEach(container => {
assert_approx_equals(container.getBoundingClientRect().width, contentWidth, epsilon);
});
}, "lspace/voffset shifts don't affect mpadded preferred width");
function GetShifts(mpadded) {
let mpadded_box = mpadded.getBoundingClientRect();
let mspace_box = mpadded.firstElementChild.getBoundingClientRect();
return { lspace: mspace_box.left - mpadded_box.left,
voffset: mpadded_box.top - mspace_box.top };
}
let mpaddeds = document.getElementById("static_tests").getElementsByTagName("mpadded");
test(function() {
let baseline = document.getElementById("baseline").getBoundingClientRect().bottom;
Array.from(mpaddeds).forEach(e => {
let mpadded = e.getBoundingClientRect();
assert_approx_equals(mpadded.width, contentWidth, epsilon);
assert_approx_equals(baseline - mpadded.top, contentHeight, epsilon);
assert_approx_equals(mpadded.bottom - baseline, contentDepth, epsilon);
});
}, "lspace/voffset shifts don't affect mpadded size");
test(function() {
let shifts = GetShifts(mpaddeds[0]);
assert_approx_equals(shifts.lspace, 5, epsilon, "positive lspace");
assert_approx_equals(shifts.voffset, 0, epsilon);
shifts = GetShifts(mpaddeds[1]);
assert_approx_equals(shifts.lspace, 0, epsilon, "negative lspace is clmaped to zero");
assert_approx_equals(shifts.voffset, 0, epsilon);
shifts = GetShifts(mpaddeds[2]);
assert_approx_equals(shifts.lspace, 0, epsilon, "positive lspace percentage");
assert_approx_equals(shifts.voffset, 0, epsilon);
shifts = GetShifts(mpaddeds[3]);
assert_approx_equals(shifts.lspace, 0, epsilon, "negative lspace percentage");
assert_approx_equals(shifts.voffset, 0, epsilon);
shifts = GetShifts(mpaddeds[4]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, 10, epsilon, "positive voffset");
shifts = GetShifts(mpaddeds[5]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, -10, epsilon, "negative voffset");
shifts = GetShifts(mpaddeds[6]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, 0, epsilon, "positive voffset percentage");
shifts = GetShifts(mpaddeds[7]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, 0, epsilon, "negative voffset percentage");
shifts = GetShifts(mpaddeds[8]);
assert_approx_equals(shifts.lspace, 5, epsilon);
assert_approx_equals(shifts.voffset, 10, epsilon);
shifts = GetShifts(mpaddeds[9]);
assert_approx_equals(shifts.lspace, 5, epsilon);
assert_approx_equals(shifts.voffset, -10, epsilon);
}, "content is shifted by the specified lspace/voffset");
mpaddeds = document.getElementById("static_tests_rtl").getElementsByTagName("mpadded");
test(function() {
let shifts = GetShifts(mpaddeds[0]);
assert_approx_equals(shifts.lspace, -5, epsilon, "positive lspace");
assert_approx_equals(shifts.voffset, 0, epsilon);
shifts = GetShifts(mpaddeds[1]);
assert_approx_equals(shifts.lspace, 0, epsilon, "negative lspace is clmaped to zero");
assert_approx_equals(shifts.voffset, 0, epsilon);
shifts = GetShifts(mpaddeds[2]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, 10, epsilon, "positive voffset");
shifts = GetShifts(mpaddeds[3]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, -10, epsilon, "negative voffset");
shifts = GetShifts(mpaddeds[4]);
assert_approx_equals(shifts.lspace, -5, epsilon);
assert_approx_equals(shifts.voffset, 10, epsilon);
shifts = GetShifts(mpaddeds[5]);
assert_approx_equals(shifts.lspace, -5, epsilon);
assert_approx_equals(shifts.voffset, -10, epsilon);
}, "content is shifted by the specified lspace/voffset (RTL)");
mpaddeds = document.getElementById("dynamic_tests").getElementsByTagName("mpadded");
test(function() {
mpaddeds[0].setAttribute("lspace", "5px")
let shifts = GetShifts(mpaddeds[0]);
assert_approx_equals(shifts.lspace, 5, epsilon, "attach lspace");
assert_approx_equals(shifts.voffset, 0, epsilon);
mpaddeds[1].setAttribute("voffset", "10px")
shifts = GetShifts(mpaddeds[1]);
assert_approx_equals(shifts.lspace, 0, epsilon);
assert_approx_equals(shifts.voffset, 10, epsilon, "attach voffset");
mpaddeds[2].removeAttribute("lspace")
shifts = GetShifts(mpaddeds[2]);
assert_approx_equals(shifts.lspace, 0, epsilon, "remove lspace");
assert_approx_equals(shifts.voffset, 10, epsilon);
mpaddeds[3].removeAttribute("voffset")
shifts = GetShifts(mpaddeds[3]);
assert_approx_equals(shifts.lspace, 5, epsilon);
assert_approx_equals(shifts.voffset, 0, epsilon, "remove voffset");
mpaddeds[4].setAttribute("lspace", "15px")
shifts = GetShifts(mpaddeds[4]);
assert_approx_equals(shifts.lspace, 15, epsilon, "modify lspace");
assert_approx_equals(shifts.voffset, 10, epsilon);
mpaddeds[5].setAttribute("voffset", "-10px")
shifts = GetShifts(mpaddeds[5]);
assert_approx_equals(shifts.lspace, 5, epsilon);
assert_approx_equals(shifts.voffset, -10, epsilon, "modify voffset");
}, "dynamic changes of lspace/voffset");
done();
}
</script>
<style>
div.shrink-wrap {
background: yellow;
display: inline-block;
margin-top: 5px;
padding-top: 5px;
}
</style>
</head>
<body>
<div id="log"></div>
<div id="static_tests">
<span id="baseline" style="display: inline-block; width: 30px; height: 5px; background: blue"></span>
<math>
<mpadded lspace="5px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="-5px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5%" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="-5%" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded voffset="-10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded voffset="10%" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded voffset="-10%" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="-10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div id="static_tests_rtl">
<math dir="rtl">
<mpadded lspace="5px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="-5px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded voffset="-10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="-10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div id="dynamic_tests">
<math>
<mpadded style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div>
<div class="shrink-wrap">
<math>
<mpadded lspace="5px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div class="shrink-wrap">
<math>
<mpadded lspace="-5px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div class="shrink-wrap">
<math>
<mpadded voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div class="shrink-wrap">
<math>
<mpadded voffset="-10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div class="shrink-wrap">
<math>
<mpadded lspace="5px" voffset="10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
<div class="shrink-wrap">
<math>
<mpadded lspace="5px" voffset="-10px" style="background: black"><mspace width="10px" depth="15px" height="20px" style="background: green; opacity: .5"/></mpadded>
</math>
</div>
</div>
</body>
</html>
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