LibWeb/CSS: Allow converting CSSMathValues to StyleValues

Because we store calculations as a tree of CalculationNodes inside a
CalculatedStyleValue, instead of a tree of StyleValues directly, this
implements a create_calculation_node() method on CSSNumericValue.
CSSMathValue::create_an_internal_representation() then calls
create_calculation_node() on itself, and wraps it in a
CalculatedStyleValue.

Lots of WPT passes again! Some regressions, which are expected: `cursor`
fails a test for the same reason it fails other that set it to some
kind of numeric value: We don't distinguish between "can contain a
number" and "can accept a number by itself". This will affect any
similar properties, but overall this is a big improvement.
This commit is contained in:
Sam Atkins 2025-10-10 17:29:54 +01:00
commit 078bc1a471
Notes: github-actions[bot] 2025-10-13 09:01:05 +00:00
24 changed files with 172 additions and 36 deletions

View file

@ -30,6 +30,8 @@ public:
virtual bool is_equal_numeric_value(GC::Ref<CSSNumericValue> other) const override;
virtual Optional<SumValue> create_a_sum_value() const override;
virtual WebIDL::ExceptionOr<NonnullRefPtr<CalculationNode const>> create_calculation_node(CalculationContext const&) const override;
private:
CSSMathMax(JS::Realm&, NumericType, GC::Ref<CSSNumericArray>);
GC::Ref<CSSNumericArray> m_values;