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LibWeb/CSS: Separate IntegerSV and NumberSV from CSSUnitValue

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This inheritance exists for typed-om classes, but StyleValues aren't
typed-om.

Somehow this makes our z-index interpolation slightly more correct. 🎉
This commit is contained in:
Sam Atkins 2025-08-08 10:55:30 +01:00 • committed by Tim Ledbetter
commit 7157d19f56
Notes: github-actions[bot] 2025-08-08 14:20:36 +00:00
10 changed files with 23 additions and 25 deletions
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4
Libraries/LibWeb/CSS/Interpolation.cpp
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@ -1151,8 +1151,8 @@ static RefPtr<StyleValue const> interpolate_value_impl(DOM::Element& element, Ca
// https://drafts.csswg.org/css-values/#combine-integers
// Interpolation of <integer> is defined as Vresult = round((1 - p) × VA + p × VB);
// that is, interpolation happens in the real number space as for <number>s, and the result is converted to an <integer> by rounding to the nearest integer.
auto interpolated_value = interpolate_raw(from.as_integer().value(), to.as_integer().value(), delta);
return IntegerStyleValue::create(round_to<i64>(interpolated_value));
auto interpolated_value = interpolate_raw(from.as_integer().integer(), to.as_integer().integer(), delta);
return IntegerStyleValue::create(interpolated_value);
}
case StyleValue::Type::Length: {
auto const& from_length = from.as_length().length();