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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 nonempty mpadded element for different values of height, depth and width">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var epsilon = 1;
function getBox(aId) {
return document.getElementById(aId).getBoundingClientRect();
}
setup({ explicit_done: true });
window.addEventListener("load", runTests);
function runTests() {
const contentWidth = 100;
const contentDepth = 125;
const contentHeight = 150;
test(function() {
var none = getBox("none");
assert_equals(none.width, contentWidth, "content width");
assert_approx_equals(getBox("baseline").bottom - none.top, contentHeight, epsilon, "content height");
assert_approx_equals(none.bottom - getBox("baseline").bottom, contentDepth, epsilon, "content height");
}, "mpadded with no attributes");
test(function() {
for (var i = 0; i <= 2; i++) {
var mpadded = getBox("width" + i);
assert_approx_equals(mpadded.width, 25*(i+1), epsilon, "width " + i);
assert_approx_equals(getBox("baseline").bottom - mpadded.top, contentHeight, epsilon, "height" + i);
assert_approx_equals(mpadded.bottom - getBox("baseline").bottom, contentDepth, epsilon, "depth" + i);
}
}, "Different widths");
test(function() {
for (var i = 0; i <= 2; i++) {
var mpadded = getBox("height" + i);
assert_equals(mpadded.width, contentWidth, "width" + i);
assert_approx_equals(getBox("baseline").bottom - mpadded.top, 25*(i+1), epsilon, "height" + i);
assert_approx_equals(mpadded.bottom - getBox("baseline").bottom, contentDepth, epsilon, "depth" + i);
}
}, "Different heights");
test(function() {
var mpadded = getBox("percentages");
assert_equals(mpadded.width, contentWidth, "width");
assert_approx_equals(getBox("baseline").bottom - mpadded.top, contentHeight, epsilon, "height");
assert_approx_equals(mpadded.bottom - getBox("baseline").bottom, contentDepth, epsilon, "depth");
}, "Percentage calculation for width, height and depth");
test(function() {
for (var i = 0; i <= 2; i++) {
var mpadded = getBox("depth" + i);
assert_equals(mpadded.width, contentWidth, "width" + i);
assert_approx_equals(getBox("baseline2").bottom - mpadded.top, contentHeight, epsilon, "height" + i);
assert_approx_equals(mpadded.bottom - getBox("baseline2").bottom, 25*(i+1), epsilon, "depth" + i);
}
}, "Different depths");
test(function() {
for (var i = 0; i <= 2; i++) {
var mpadded = getBox("mpadded" + i);
assert_approx_equals(mpadded.width, 25*(1+i%3), epsilon, "width" + i);
assert_approx_equals(getBox("baseline2").bottom - mpadded.top, 25*(1+(i+1)%3), epsilon, "height" + i);
assert_approx_equals(mpadded.bottom - getBox("baseline2").bottom, 25*(1+(i+2)%3), epsilon, "depth" + i);
}
}, "Various combinations of height, depth and width.");
test(function() {
var container = document.getElementById("containerForPreferredWidth");
var mpadded = container.getElementsByTagName("mpadded")[0];
var containerWidth = container.getBoundingClientRect().width;
var mpaddedWidth = mpadded.getBoundingClientRect().width;
assert_approx_equals(containerWidth, mpaddedWidth, epsilon);
}, "Preferred width");
// Dynamically set attributes.
["width", "height", "depth"].forEach(function (name, index) {
document.getElementById("dynamic-remove").removeAttribute(name);
let length = `${50 + index * 10}px`;
document.getElementById("dynamic-attach").setAttribute(name, length);
document.getElementById("dynamic-modify").setAttribute(name, length);
});
let baseline = getBox("baseline3").bottom;
test(function() {
let remove = getBox("dynamic-remove");
assert_approx_equals(remove.width, contentWidth, epsilon);
assert_approx_equals(remove.height, contentHeight + contentDepth, epsilon);
assert_approx_equals(baseline - remove.top, contentHeight, epsilon);
}, "dynamic attributes (remove)");
test(function() {
let attach = getBox("dynamic-attach");
assert_approx_equals(attach.width, 50, epsilon);
assert_approx_equals(attach.height, 60 + 70, epsilon);
assert_approx_equals(baseline - attach.top, 60, epsilon);
}, "dynamic attributes (attach)");
test(function() {
let modify = getBox("dynamic-modify");
assert_approx_equals(modify.width, 50, epsilon);
assert_approx_equals(modify.height, 60 + 70, epsilon);
assert_approx_equals(baseline - modify.top, 60, epsilon);
}, "dynamic attributes (modify)");
done();
}
</script>
<style>
div.shrink-wrap {
background: yellow;
display: inline-block;
margin-top: 5px;
padding-top: 5px;
}
</style>
</head>
<body>
<div id="log"></div>
<p>
<span id="baseline" style="display: inline-block; width: 30px; height: 5px; background: blue"></span>
<math>
<mpadded id="none"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="width0" width="25px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="width1" width="50px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="width2" width="75px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="height0" height="25px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="height1" height="50px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="height2" height="75px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="percentages" width="50%" height="33%" depth="10%"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
</math>
</p>
<p>
<span id="baseline2" style="display: inline-block; width: 30px; height: 5px; background: blue"></span>
<math>
<mpadded id="depth0" depth="25px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="depth1" depth="50px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="depth2" depth="75px"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="mpadded0" width="25px" height="50px" depth="75px" style="background: green"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="mpadded1" width="50px" height="75px" depth="25px" style="background: blue"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="mpadded2" width="75px" height="25px" depth="50px" style="background: green"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
</math>
</p>
<div>
<div id="containerForPreferredWidth" class="shrink-wrap">
<math><mpadded width="75px" height="25px" depth="50px" style="background: green"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded></math>
</div>
</div>
<p>
<span id="baseline3" style="display: inline-block; width: 30px; height: 5px; background: blue"></span>
<math>
<mpadded id="dynamic-attach" style="background: lightgreen"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="dynamic-remove" width="10px" height="20px" depth="30px" style="background: lightyellow"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
<mpadded id="dynamic-modify" width="100px" height="200px" depth="300px" style="background: pink"><mspace width="100px" depth="125px" height="150px" style="background: black; opacity: .5"/></mpadded>
</math>
</p>
</body>
</html>
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