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

@ -9,6 +9,7 @@
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/CSS/CSSMathNegate.h>
#include <LibWeb/CSS/CSSNumericArray.h>
#include <LibWeb/CSS/StyleValues/CalculatedStyleValue.h>
#include <LibWeb/WebIDL/DOMException.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
@ -157,4 +158,14 @@ Optional<SumValue> CSSMathMax::create_a_sum_value() const
return item_with_largest_value;
}
WebIDL::ExceptionOr<NonnullRefPtr<CalculationNode const>> CSSMathMax::create_calculation_node(CalculationContext const& context) const
{
Vector<NonnullRefPtr<CalculationNode const>> child_nodes;
for (auto const& child_value : m_values->values()) {
child_nodes.append(TRY(child_value->create_calculation_node(context)));
}
return MaxCalculationNode::create(move(child_nodes));
}
}