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LibWeb: Support flex items with calc() main size containing percentages

If a flex item's main size is a CSS calc() value that resolves to a
length and contains a percentage, we can only resolve it when we have
the corresponding reference size for the containing block.
This commit is contained in:
Andreas Kling 2023-06-02 15:34:26 +02:00
parent d6c3cbd958
commit 06617a982e
3 changed files with 38 additions and 3 deletions

View file

@ -0,0 +1,15 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x69.34375 [BFC] children: not-inline
Box <body.pink> at (8,8) content-size 784x53.34375 flex-container(row) [FFC] children: not-inline
Box <div.orange> at (8,8) content-size 194.71875x53.34375 flex-container(row) flex-item [FFC] children: not-inline
BlockContainer <div.lime> at (8,8) content-size 87.358999x53.34375 flex-item [BFC] children: inline
line 0 width: 74.75, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 9, rect: [8,8 74.75x17.46875]
"This is a"
line 1 width: 71.828125, height: 17.9375, bottom: 35.40625, baseline: 13.53125
frag 0 from TextNode start: 10, length: 8, rect: [8,25 71.828125x17.46875]
"bunch of"
line 2 width: 32.140625, height: 18.40625, bottom: 53.34375, baseline: 13.53125
frag 0 from TextNode start: 19, length: 4, rect: [8,42 32.140625x17.46875]
"text"
TextNode <#text>

View file

@ -0,0 +1,17 @@
<!doctype html><style>
html {
background: white;
}
body {
background: pink;
display: flex;
}
.orange {
background: orange;
display: flex;
}
.lime {
background: lime;
width: calc(50% - 10px);
}
</style><body class=pink><div class=orange><div class=lime>This is a bunch of text

View file

@ -623,10 +623,13 @@ void FlexFormattingContext::determine_flex_base_size_and_hypothetical_main_size(
if (flex_basis.length_percentage->is_calculated()) {
auto const& calc_value = *flex_basis.length_percentage->calculated();
if (calc_value.resolves_to_length())
return true;
if (calc_value.resolves_to_percentage() || (calc_value.resolves_to_length() && calc_value.contains_percentage()))
if (calc_value.resolves_to_percentage())
return can_resolve_percentages;
if (calc_value.resolves_to_length()) {
if (calc_value.contains_percentage())
return can_resolve_percentages;
return true;
}
return false;
}
VERIFY(flex_basis.length_percentage->is_percentage());