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LibWeb: Support relative lengths in calc color values

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Gains us ~40 WPT tests.
This commit is contained in:
Callum Law 2025-06-29 17:18:05 +12:00 • committed by Sam Atkins
parent 62d138ebf7
commit 9ab7c5d08d
Notes: github-actions[bot] 2025-07-04 12:20:09 +00:00
17 changed files with 169 additions and 74 deletions
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17
Libraries/LibWeb/CSS/Interpolation.cpp
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@ -659,6 +659,13 @@ RefPtr<CSSStyleValue const> interpolate_box_shadow(DOM::Element& element, Calcul
StyleValueVector result_shadows;
result_shadows.ensure_capacity(from_shadows.size());
Optional<Layout::NodeWithStyle const&> layout_node;
CalculationResolutionContext resolution_context;
if (auto node = element.layout_node()) {
layout_node = *node;
resolution_context.length_resolution_context = Length::ResolutionContext::for_layout_node(*node);
}
for (size_t i = 0; i < from_shadows.size(); i++) {
auto const& from_shadow = from_shadows[i]->as_shadow();
auto const& to_shadow = to_shadows[i]->as_shadow();
@ -669,7 +676,7 @@ RefPtr<CSSStyleValue const> interpolate_box_shadow(DOM::Element& element, Calcul
if (!interpolated_offset_x || !interpolated_offset_y || !interpolated_blur_radius || !interpolated_spread_distance)
return {};
auto result_shadow = ShadowStyleValue::create(
CSSColorValue::create_from_color(interpolate_color(from_shadow.color()->to_color({}, {}), to_shadow.color()->to_color({}, {}), delta), ColorSyntax::Modern),
CSSColorValue::create_from_color(interpolate_color(from_shadow.color()->to_color(layout_node, resolution_context), to_shadow.color()->to_color(layout_node, resolution_context), delta), ColorSyntax::Modern),
*interpolated_offset_x,
*interpolated_offset_y,
*interpolated_blur_radius,
@ -781,9 +788,13 @@ static RefPtr<CSSStyleValue const> interpolate_value_impl(DOM::Element& element,
}
case CSSStyleValue::Type::Color: {
Optional<Layout::NodeWithStyle const&> layout_node;
if (auto node = element.layout_node())
CalculationResolutionContext resolution_context {};
if (auto node = element.layout_node()) {
layout_node = *node;
return CSSColorValue::create_from_color(interpolate_color(from.to_color(layout_node, {}), to.to_color(layout_node, {}), delta), ColorSyntax::Modern);
resolution_context.length_resolution_context = Length::ResolutionContext::for_layout_node(*node);
}
return CSSColorValue::create_from_color(interpolate_color(from.to_color(layout_node, resolution_context), to.to_color(layout_node, resolution_context), delta), ColorSyntax::Modern);
}
case CSSStyleValue::Type::Edge: {
auto resolved_from = from.as_edge().resolved_value(calculation_context);