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LibWeb: Rewrite FFC "resolve flexible lengths" algorithm from draft spec

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The draft CSS-FLEXBOX-1 spec had a more detailed description of this
algorithm, so let's use that as our basis for the implementation.

Test by Aliaksandr. :^)
This commit is contained in:
Andreas Kling 2023-03-08 21:18:35 +01:00
parent 1cd61723f0
commit 109ed27423
4 changed files with 268 additions and 149 deletions
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29
Tests/LibWeb/Layout/expected/flex-column-height-unconstrained.txt Normal file
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Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x324 children: not-inline
BlockContainer <body> at (8,8) content-size 784x308 children: not-inline
Box <div.my-container.column> at (9,9) content-size 782x306 flex-container(column) children: not-inline
BlockContainer <(anonymous)> at (9,9) content-size 0x0 children: inline
TextNode <#text>
BlockContainer <div.box> at (10,10) content-size 100x100 flex-item children: inline
line 0 width: 6.34375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [10,10 6.34375x17.46875]
"1"
TextNode <#text>
BlockContainer <(anonymous)> at (9,9) content-size 0x0 children: inline
TextNode <#text>
BlockContainer <div.box> at (10,112) content-size 100x100 flex-item children: inline
line 0 width: 8.8125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [10,112 8.8125x17.46875]
"2"
TextNode <#text>
BlockContainer <(anonymous)> at (9,9) content-size 0x0 children: inline
TextNode <#text>
BlockContainer <div.box> at (10,214) content-size 100x100 flex-item children: inline
line 0 width: 9.09375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 1, rect: [10,214 9.09375x17.46875]
"3"
TextNode <#text>
BlockContainer <(anonymous)> at (9,9) content-size 0x0 children: inline
TextNode <#text>
BlockContainer <(anonymous)> at (8,316) content-size 784x0 children: inline
TextNode <#text>

25
Tests/LibWeb/Layout/input/flex-column-height-unconstrained.html Normal file
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<style>
body {
font-family: 'SerenitySans';
}
.my-container {
display: flex;
border: 1px solid salmon;
}
.column {
flex-direction: column;
}
.box {
width: 100px;
height: 100px;
border: 1px solid black;
}
</style>
<div class="my-container column">
<div class="box">1</div>
<div class="box">2</div>
<div class="box">3</div>
</div>