LibWeb: Invalidate style for tree counting functions when required

We mark any element that relies on tree counting functions as needing a style update when a sibling is inserted/removed.
Author: https://github.com/Calme1709 Commit: 2404f95e03 Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6426 Reviewed-by: https://github.com/AtkinsSJ ✅
2025-10-24 08:59:50 +00:00 · 2025-10-06 17:09:22 +13:00 · 2025-10-06 17:09:22 +13:00 · 2404f95e03 · 2025-10-20 15:13:22 +00:00
commit 2404f95e03
parent e9036c7c75
50 changed files with 297 additions and 230 deletions
--- a/Libraries/LibWeb/CSS/Interpolation.cpp
+++ b/Libraries/LibWeb/CSS/Interpolation.cpp
@ -1294,7 +1294,7 @@ static RefPtr<StyleValue const> interpolate_mixed_value(CalculationContext const
        });

        return CalculatedStyleValue::create(
-            simplify_a_calculation_tree(SumCalculationNode::create({ from_contribution, to_contribution }), calculation_context, {}),
+            simplify_a_calculation_tree(SumCalculationNode::create({ from_contribution, to_contribution }), calculation_context, {}, nullptr),
            *from_node->numeric_type()->added_to(*to_node->numeric_type()),
            calculation_context);
    }