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	Since we now have access to the `AbstractElement` through the `ComputationContext` we can just set the flag that this element relies on tree counting functions directly, no need to pass this struct around.
		
			
				
	
	
		
			157 lines
		
	
	
	
		
			7.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			157 lines
		
	
	
	
		
			7.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2018-2025, Andreas Kling <andreas@ladybird.org>
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|  * Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
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|  * Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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|  * Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include <LibGfx/Font/Font.h>
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| #include <LibGfx/Font/FontStyleMapping.h>
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| #include <LibGfx/Font/FontWeight.h>
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| #include <LibWeb/CSS/CSSStyleValue.h>
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| #include <LibWeb/CSS/Parser/Parser.h>
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| #include <LibWeb/CSS/StyleValues/AbstractImageStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/AnchorSizeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/AnchorStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/AngleStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/BackgroundSizeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/BasicShapeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/BorderImageSliceStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/CalculatedStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ColorSchemeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ColorStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ConicGradientStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ContentStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/CounterDefinitionsStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/CounterStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/CursorStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/CustomIdentStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/DisplayStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/EasingStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/EdgeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/FilterValueListStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/FitContentStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/FlexStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/FontSourceStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/FontStyleStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/FrequencyStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/GridAutoFlowStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/GridTemplateAreaStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/GridTrackPlacementStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/GridTrackSizeListStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/GuaranteedInvalidStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ImageStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/IntegerStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/KeywordStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/LinearGradientStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/MathDepthStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/NumberStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/OpenTypeTaggedStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/PendingSubstitutionStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/PositionStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/RadialGradientStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/RatioStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/RectStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/RepeatStyleStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ResolutionStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ScrollbarColorStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ScrollbarGutterStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ShadowStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/ShorthandStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/StringStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/StyleValue.h>
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| #include <LibWeb/CSS/StyleValues/StyleValueList.h>
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| #include <LibWeb/CSS/StyleValues/SuperellipseStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/TextUnderlinePositionStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/TimeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/TransformationStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/TransitionStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/TreeCountingFunctionStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/URLStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/UnicodeRangeStyleValue.h>
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| #include <LibWeb/CSS/StyleValues/UnresolvedStyleValue.h>
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| #include <LibWeb/HTML/Navigable.h>
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| #include <LibWeb/Layout/Node.h>
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| 
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| namespace Web::CSS {
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| 
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| ColorResolutionContext ColorResolutionContext::for_element(DOM::AbstractElement const& element)
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| {
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|     auto color_scheme = element.computed_properties()->color_scheme(element.document().page().preferred_color_scheme(), element.document().supported_color_schemes());
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| 
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|     CalculationResolutionContext calculation_resolution_context { .length_resolution_context = Length::ResolutionContext::for_element(element) };
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| 
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|     return {
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|         .color_scheme = color_scheme,
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|         .current_color = element.computed_properties()->color_or_fallback(PropertyID::Color, { color_scheme, CSS::InitialValues::color(), element.document(), calculation_resolution_context }, CSS::InitialValues::color()),
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|         .document = element.document(),
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|         .calculation_resolution_context = calculation_resolution_context
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|     };
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| }
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| 
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| ColorResolutionContext ColorResolutionContext::for_layout_node_with_style(Layout::NodeWithStyle const& layout_node)
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| {
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|     return {
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|         .color_scheme = layout_node.computed_values().color_scheme(),
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|         .current_color = layout_node.computed_values().color(),
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|         .document = layout_node.document(),
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|         .calculation_resolution_context = { .length_resolution_context = Length::ResolutionContext::for_layout_node(layout_node) },
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|     };
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| }
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| 
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| StyleValue::StyleValue(Type type)
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|     : m_type(type)
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| {
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| }
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| 
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| AbstractImageStyleValue const& StyleValue::as_abstract_image() const
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| {
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|     VERIFY(is_abstract_image());
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|     return static_cast<AbstractImageStyleValue const&>(*this);
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| }
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| 
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| DimensionStyleValue const& StyleValue::as_dimension() const
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| {
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|     VERIFY(is_dimension());
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|     return static_cast<DimensionStyleValue const&>(*this);
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| }
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| 
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| #define __ENUMERATE_CSS_STYLE_VALUE_TYPE(title_case, snake_case, style_value_class_name) \
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|     style_value_class_name const& StyleValue::as_##snake_case() const                    \
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|     {                                                                                    \
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|         VERIFY(is_##snake_case());                                                       \
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|         return static_cast<style_value_class_name const&>(*this);                        \
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|     }
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| ENUMERATE_CSS_STYLE_VALUE_TYPES
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| #undef __ENUMERATE_CSS_STYLE_VALUE_TYPE
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| 
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| ValueComparingNonnullRefPtr<StyleValue const> StyleValue::absolutized(ComputationContext const&) const
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| {
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|     return *this;
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| }
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| 
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| bool StyleValue::has_auto() const
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| {
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|     return is_keyword() && as_keyword().keyword() == Keyword::Auto;
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| }
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| 
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| Vector<Parser::ComponentValue> StyleValue::tokenize() const
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| {
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|     // This is an inefficient way of producing ComponentValues, but it's guaranteed to work for types that round-trip.
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|     // FIXME: Implement better versions in the subclasses.
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|     return Parser::Parser::create(Parser::ParsingParams {}, to_string(SerializationMode::Normal)).parse_as_list_of_component_values();
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| }
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| 
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| // https://drafts.css-houdini.org/css-typed-om-1/#reify-as-a-cssstylevalue
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| GC::Ref<CSSStyleValue> StyleValue::reify(JS::Realm& realm, FlyString const& associated_property) const
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| {
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|     // 1. Return a new CSSStyleValue object representing value whose [[associatedProperty]] internal slot is set to property.
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|     return CSSStyleValue::create(realm, associated_property, *this);
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| }
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| 
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| }
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