layout: Obey intrinsic min/max block sizes on flex containers (#36973)

Intrinsic sizing keywords weren't working correctly on the min and max
block sizes of a flex container, because we weren't setting the
`CacheableLayoutResult::content_block_size` to the right value. This
also ensures that `align-content` aligns within the final size of the
container.

Note it's not very clear what to do for single-line containers, they are
being discussed in https://github.com/w3c/csswg-drafts/issues/12123

Testing: Adding new WPT tests. There are still some failures, but most
subtests would fail without this change.
Fixes: #36981

Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This commit is contained in:
Oriol Brufau 2025-05-15 00:57:07 -07:00 committed by GitHub
parent 103cbed928
commit cd0dbb9afb
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7 changed files with 401 additions and 22 deletions

View file

@ -586672,6 +586672,20 @@
{}
]
],
"flex-container-max-content-002.tentative.html": [
"77a074b153a3b3fcb47c5665bab614c1720a73d2",
[
null,
{}
]
],
"flex-container-min-content-002.tentative.html": [
"92d37e3b9d8db7b57b813b49c26a3e9cd03b5179",
[
null,
{}
]
],
"flex-direction-column-overlap-001.html": [
"4d483a44fc630e46ddbe75ca79d8246eed67a94d",
[

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@ -0,0 +1,12 @@
[flex-container-max-content-002.tentative.html]
[.flex 2]
expected: FAIL
[.flex 3]
expected: FAIL
[.flex 5]
expected: FAIL
[.flex 6]
expected: FAIL

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@ -0,0 +1,21 @@
[flex-container-min-content-002.tentative.html]
[.flex 2]
expected: FAIL
[.flex 3]
expected: FAIL
[.flex 5]
expected: FAIL
[.flex 6]
expected: FAIL
[.flex 13]
expected: FAIL
[.flex 14]
expected: FAIL
[.flex 15]
expected: FAIL

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@ -0,0 +1,169 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>Flex Container Max-Content Sizes</title>
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#intrinsic-main-sizes"
title="9.9.1. Flex Container Intrinsic Main Sizes">
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#intrinsic-cross-sizes"
title="9.9.2. Flex Container Intrinsic Cross Sizes">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/12123">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
.flex {
display: inline-flex;
vertical-align: top;
border: 5px solid magenta;
width: max-content;
height: max-content;
}
.flex.min {
width: 0;
height: 0;
min-width: max-content;
min-height: max-content;
}
.flex.max {
width: 200px;
height: 200px;
max-width: max-content;
max-height: max-content;
}
.flex > div {
font: 25px/1 Ahem;
border: 5px solid cyan;
}
</style>
<!-- Single-line row flex container -->
<div class="flex" style="flex-flow: row nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: row nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: row nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: row nowrap"
data-expected-width="180" data-expected-height="45">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex min" style="flex-flow: row nowrap"
data-expected-width="180" data-expected-height="45">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex max" style="flex-flow: row nowrap"
data-expected-width="180" data-expected-height="45">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<hr>
<!-- Single-line column flex container -->
<div class="flex" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: column nowrap"
data-expected-width="95" data-expected-height="80">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex min" style="flex-flow: column nowrap"
data-expected-width="95" data-expected-height="80">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex max" style="flex-flow: column nowrap"
data-expected-width="95" data-expected-height="80">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<hr>
<!-- Multi-line row flex container -->
<div class="flex" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: row wrap"
data-expected-width="180" data-expected-height="45">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex min" style="flex-flow: row wrap"
data-expected-width="180" data-expected-height="45">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex max" style="flex-flow: row wrap"
data-expected-width="180" data-expected-height="45">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<hr>
<!-- Multi-line column flex container -->
<div class="flex" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: column wrap"
data-expected-width="95" data-expected-height="80">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex min" style="flex-flow: column wrap"
data-expected-width="95" data-expected-height="80">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<div class="flex max" style="flex-flow: column wrap"
data-expected-width="95" data-expected-height="80">
<div data-expected-width="85" data-expected-height="35">X X</div>
<div data-expected-width="85" data-expected-height="35">X X</div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script>
checkLayout(".flex");
</script>

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@ -0,0 +1,169 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>Flex Container Min-Content Sizes</title>
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#intrinsic-main-sizes"
title="9.9.1. Flex Container Intrinsic Main Sizes">
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#intrinsic-cross-sizes"
title="9.9.2. Flex Container Intrinsic Cross Sizes">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/12123">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css">
<style>
.flex {
display: inline-flex;
vertical-align: top;
border: 5px solid magenta;
width: min-content;
height: min-content;
}
.flex.min {
width: 0;
height: 0;
min-width: min-content;
min-height: min-content;
}
.flex.max {
width: 200px;
height: 200px;
max-width: min-content;
max-height: min-content;
}
.flex > div {
font: 25px/1 Ahem;
border: 5px solid cyan;
}
</style>
<!-- Single-line row flex container -->
<div class="flex" style="flex-flow: row nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: row nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: row nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: row nowrap"
data-expected-width="80" data-expected-height="70">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex min" style="flex-flow: row nowrap"
data-expected-width="80" data-expected-height="70">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex max" style="flex-flow: row nowrap"
data-expected-width="80" data-expected-height="70">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<hr>
<!-- Single-line column flex container -->
<div class="flex" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex min" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex max" style="flex-flow: column nowrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<hr>
<!-- Multi-line row flex container -->
<div class="flex" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex min" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex max" style="flex-flow: row wrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<hr>
<!-- Multi-line column flex container -->
<div class="flex" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex min" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex max" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="45">
<div style="width: 25px; height: 25px">X</div>
</div>
<div class="flex" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex min" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<div class="flex max" style="flex-flow: column wrap"
data-expected-width="45" data-expected-height="130">
<div data-expected-width="35" data-expected-height="60">X X</div>
<div data-expected-width="35" data-expected-height="60">X X</div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script>
checkLayout(".flex");
</script>