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<!DOCTYPE html>
<html class="reftest-wait">
<title>Test for font-display @font-face descriptor</title>
<meta name="timeout" content="long">
<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#font-display-desc">
<link rel="match" href="font-display-ref.html">
<style>
.hidden { display: none; }
</style>
<p>Tests how text with a font that takes <i>delay</i> seconds to load look like after <i>T</i> seconds from load start.</p>
<table id="container">
<tr>
<th>T[sec]</th>
<th>delay[sec]</th>
<th>auto</th>
<th>block</th>
<th>swap</th>
<th>fallback</th>
<th>optional</th>
</tr>
</table>
<script>
var fontDisplayValues = ['auto', 'block', 'swap', 'fallback', 'optional'];
var configs = [{time: 0, delay: 1000},
{time: 1000, delay: 0},
{time: 1000, delay: 500},
{time: 1000, delay: 3000},
{time: 5000, delay: 2000},
{time: 5000, delay: 4000},
{time: 5000, delay: 8000}];
function makeFontFaceDeclaration(family, config, display) {
url = '/fonts/Ahem.ttf?pipe=trickle(d' + config.delay / 1000 + ')';
return '@font-face { font-family: ' + family + '; src: url("' + url + '"); font-display: ' + display + '; }';
}
var maxTime = Math.max.apply(null, configs.map((config) => config.time));
var table = document.getElementById('container');
window.onload = function() {
for (var config, i = 0; config = configs[i]; i++) {
var tr = document.createElement('tr');
tr.classList.add('hidden');
var td1 = document.createElement('td');
td1.textContent = config.time / 1000;
tr.appendChild(td1);
var td2 = document.createElement('td');
td2.textContent = config.delay / 1000;
tr.appendChild(td2);
for (var display, j = 0; display = fontDisplayValues[j]; j++) {
var family = [display, config.time, config.delay].join('-');
var rule = makeFontFaceDeclaration(family, config, display);
document.styleSheets[0].insertRule(rule, 0);
var td = document.createElement('td');
td.textContent = 'a';
td.style.fontFamily = family + ', Arial';
tr.appendChild(td);
}
table.appendChild(tr);
if (config.time == 0) {
setTimeout((function(tr){
tr.classList.remove('hidden');
document.documentElement.classList.remove("reftest-wait");
}).bind(null, tr), maxTime);
} else {
setTimeout((function(tr){tr.classList.remove('hidden')}).bind(null, tr), maxTime - config.time);
}
}
}
</script>
</html>
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