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<!DOCTYPE html>
<meta charset="utf-8">
<title>Last remembered size</title>
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#last-remembered">
<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
<link rel="help" href="https://drafts.csswg.org/css-contain-2/#content-visibility">
<meta name="assert" content="Tests that the last remembered size works well in a variety of different elements or boxes." />
<style>
.test {
width: max-content;
height: max-content;
border: 1px solid;
}
.test::before {
content: "";
display: block;
width: 320px;
height: 240px;
}
.contain-size {
contain: size;
}
.auto-width {
contain-intrinsic-width: auto 1px;
}
.auto-height {
contain-intrinsic-height: auto 2px;
}
.auto-both {
contain-intrinsic-size: auto 3px auto 4px;
}
.skip-contents .test {
content-visibility: hidden;
}
.scroll {
overflow: scroll;
}
.columns {
columns: 60px 2;
}
.grid {
display: grid;
}
.flex {
display: flex;
}
</style>
<div id="log"></div>
<div id="tests">
<div></div>
<div class="scroll"></div>
<div class="columns"></div>
<div class="grid"></div>
<div class="flex"></div>
<fieldset></fieldset>
<img src="resources/dice.png">
<svg></svg>
<canvas></canvas>
<iframe></iframe>
<video></video>
<button></button>
<select><option>Lorem ipsum</option></select>
<select multiple><option>Lorem ipsum</option></select>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script>
function nextRendering() {
return new Promise(resolve => {
requestAnimationFrame(() => requestAnimationFrame(() => resolve()));
});
}
addEventListener("load", async function() {
const wrapper = document.getElementById("tests");
const tests = new DocumentFragment();
for (let template of wrapper.children) {
template.classList.add("test");
const autoWidthTest = template.cloneNode(true);
const autoHeightTest = template.cloneNode(true);
const autoBothTest = template.cloneNode(true);
autoWidthTest.classList.add("auto-width");
autoHeightTest.classList.add("auto-height");
autoBothTest.classList.add("auto-both");
const normalWidth = template.clientWidth;
const normalHeight = template.clientHeight;
template.classList.add("contain-size");
const containedWidth = template.clientWidth;
const containedHeight = template.clientHeight;
autoWidthTest.dataset.expectedClientWidth = normalWidth;
autoWidthTest.dataset.expectedClientHeight = containedHeight;
autoHeightTest.dataset.expectedClientWidth = containedWidth;
autoHeightTest.dataset.expectedClientHeight = normalHeight;
autoBothTest.dataset.expectedClientWidth = normalWidth;
autoBothTest.dataset.expectedClientHeight = normalHeight;
tests.append(autoWidthTest, autoHeightTest, autoBothTest);
}
wrapper.textContent = "";
wrapper.appendChild(tests);
// Wait so that the last remembered size can be stored.
await nextRendering();
wrapper.classList.add("skip-contents");
checkLayout(".test");
});
</script>
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