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LibWeb: Don't claim that inline layout nodes can contain abspos elements

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We assume elsewhere that any abspos element's containing block must be
some kind of Layout::Box, so let's enforce that when deciding if a box
can be such a container.

This fixes a bad downcast on https://serpapi.com/
This commit is contained in:
Andreas Kling 2025-05-16 15:57:28 +02:00 committed by Andreas Kling
parent ea33bdc975
commit 3e1ee37c6a
3 changed files with 31 additions and 0 deletions
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3
Libraries/LibWeb/Layout/Node.cpp
View File

@ -76,6 +76,9 @@ bool Node::is_out_of_flow(FormattingContext const& formatting_context) const
bool Node::can_contain_boxes_with_position_absolute() const
{
if (!is<Box>(*this))
return false;
if (computed_values().position() != CSS::Positioning::Static)
return true;

16
Tests/LibWeb/Layout/expected/abspos-static-position-containing-block-inline-situation.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 800x18 [BFC] children: inline
InlineNode <body>
frag 0 from BlockContainer start: 0, length: 0, rect: [8,13 0x0] baseline: 0
frag 1 from TextNode start: 0, length: 5, rect: [8,0 36.84375x18] baseline: 13.796875
"hello"
BlockContainer <main> at (8,13) content-size 0x0 inline-block [BFC] children: not-inline
BlockContainer <div> at (8,0) content-size 36.84375x18 positioned [BFC] children: inline
TextNode <#text>
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x18]
PaintableWithLines (InlineNode<BODY>)
PaintableWithLines (BlockContainer<MAIN>) [8,13 0x0]
PaintableWithLines (BlockContainer<DIV>) [8,0 36.84375x18]
TextPaintable (TextNode<#text>)

12
Tests/LibWeb/Layout/input/abspos-static-position-containing-block-inline-situation.html Normal file
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@ -0,0 +1,12 @@
<!doctype html><style>
body {
display: inline;
position: relative;
}
main {
display: inline-block;
}
div {
position: absolute;
}
</style><body><main><div>hello