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LibWeb: Ignore % max-width if box is sized under max-content constraint

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When a box is sized under max-content constraint, any percentage value
set for max-width should be considered as if it were infinite. In other
words, it should have no effect on restricting the box's width.
This commit is contained in:
Aliaksandr Kalenik 2023-08-18 02:06:22 +02:00 committed by Andreas Kling
parent 0cda97b852
commit 37bd216c52
Notes: sideshowbarker 2024-07-17 05:02:35 +09:00 
Author: https://github.com/kalenikaliaksandr
Commit: https://github.com/SerenityOS/serenity/commit/37bd216c52
Pull-request: https://github.com/SerenityOS/serenity/pull/20630
3 changed files with 29 additions and 0 deletions
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16
Tests/LibWeb/Layout/expected/block-and-inline/inline-block-percentage-max-width.txt Normal file
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@ -0,0 +1,16 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x113.46875 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x97.46875 children: inline
line 0 width: 134.109375, height: 97.46875, bottom: 97.46875, baseline: 53.53125
frag 0 from BlockContainer start: 0, length: 0, rect: [48,48 54.109375x17.46875]
BlockContainer <div> at (48,48) content-size 54.109375x17.46875 inline-block [BFC] children: inline
line 0 width: 54.109375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 6, rect: [48,48 54.109375x17.46875]
"New UI"
TextNode <#text>
PaintableWithLines (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x113.46875]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x97.46875]
PaintableWithLines (BlockContainer<DIV>) [8,8 134.109375x97.46875]
TextPaintable (TextNode<#text>)

11
Tests/LibWeb/Layout/input/block-and-inline/inline-block-percentage-max-width.html Normal file
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@ -0,0 +1,11 @@
<!doctype html><style>
* {
outline: 1px solid black;
}
div {
display: inline-block;
max-width: 100%;
box-sizing: border-box;
padding: 40px;
}
</style><body><div>New UI

2
Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
View file

@ -1810,6 +1810,8 @@ bool FormattingContext::should_treat_max_width_as_none(Box const& box, Available
if (box.is_absolutely_positioned())
return false;
if (max_width.contains_percentage()) {
if (available_width.is_max_content())
return true;
if (available_width.is_min_content())
return false;
if (!m_state.get(*box.non_anonymous_containing_block()).has_definite_width())