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LibWeb: Remove implicit conversion from float and double to CSSPixels

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In general it is not safe to convert any arbitrary floating-point value
to CSSPixels. CSSPixels has a resolution of 0.015625, which for small
values (e.g. scale factors between 0 and 1), can produce bad results
if converted to CSSPixels then scaled back up. In the worst case values
can underflow to zero and produce incorrect results.
This commit is contained in:
MacDue 2023-08-26 15:03:04 +01:00 • committed by Alexander Kalenik
parent 0f9c088302
commit 360c0eb509
Notes: sideshowbarker 2024-07-17 10:10:18 +09:00
43 changed files with 248 additions and 221 deletions
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Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -1787,7 +1787,7 @@ Optional<Dimension> Parser::parse_dimension(ComponentValue const& component_valu
// FIXME: Disallow quirk when inside a CSS sub-expression (like `calc()`)
// "The <quirky-length> value must not be supported in arguments to CSS expressions other than the rect()
// expression, and must not be supported in the supports() static method of the CSS interface."
return Length::make_px(numeric_value);
return Length::make_px(CSSPixels(numeric_value));
}
}