2020-01-18 09:38:21 +01:00
										 
									 
								 
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								/*
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											2024-10-04 13:19:50 +02:00
										 
									 
								 
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								 * Copyright (c) 2018-2023, Andreas Kling <andreas@ladybird.org>
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											2021-08-09 21:28:56 +02:00
										 
									 
								 
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								 * Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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											2025-02-21 13:04:20 +00:00
										 
									 
								 
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								 * Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
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											2023-01-13 23:44:44 +00:00
										 
									 
								 
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								 * Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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								 *
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											2021-04-22 01:24:48 -07:00
										 
									 
								 
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								 * SPDX-License-Identifier: BSD-2-Clause
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								 */
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											2019-06-20 23:25:25 +02:00
										 
									 
								 
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								#pragma once
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								#include <AK/GenericShorthands.h>
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								#include <AK/NonnullOwnPtr.h>
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								#include <AK/RefCounted.h>
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								#include <AK/RefPtr.h>
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								#include <AK/String.h>
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								#include <AK/StringView.h>
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								#include <AK/Vector.h>
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											2019-10-19 11:49:46 +02:00
										 
									 
								 
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								#include <AK/WeakPtr.h>
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											2023-07-09 11:40:17 +03:30
										 
									 
								 
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								#include <LibGfx/Color.h>
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								#include <LibJS/Heap/Cell.h>
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								#include <LibURL/URL.h>
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								#include <LibWeb/CSS/Keyword.h>
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								#include <LibWeb/CSS/Length.h>
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								#include <LibWeb/Forward.h>
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								namespace Web::CSS {
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								template<typename T>
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								struct ValueComparingNonnullRefPtr : public NonnullRefPtr<T> {
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								    using NonnullRefPtr<T>::NonnullRefPtr;
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								    ValueComparingNonnullRefPtr(NonnullRefPtr<T> const& other)
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								        : NonnullRefPtr<T>(other)
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								    {
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								    }
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								    ValueComparingNonnullRefPtr(NonnullRefPtr<T>&& other)
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								        : NonnullRefPtr<T>(move(other))
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								    {
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								    }
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								    bool operator==(ValueComparingNonnullRefPtr const& other) const
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								    {
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								        return this->ptr() == other.ptr() || this->ptr()->equals(*other);
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								    }
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								private:
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								    using NonnullRefPtr<T>::operator==;
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								};
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								template<typename T>
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								struct ValueComparingRefPtr : public RefPtr<T> {
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								    using RefPtr<T>::RefPtr;
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								    ValueComparingRefPtr(RefPtr<T> const& other)
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								        : RefPtr<T>(other)
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								    {
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								    }
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								    ValueComparingRefPtr(RefPtr<T>&& other)
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								        : RefPtr<T>(move(other))
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								    {
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								    }
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								    template<typename U>
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								    bool operator==(ValueComparingNonnullRefPtr<U> const& other) const
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								    {
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								        return this->ptr() == other.ptr() || (this->ptr() && this->ptr()->equals(*other));
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								    }
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								    bool operator==(ValueComparingRefPtr const& other) const
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								    {
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								        return this->ptr() == other.ptr() || (this->ptr() && other.ptr() && this->ptr()->equals(*other));
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								    }
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								private:
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								    using RefPtr<T>::operator==;
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								};
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								using StyleValueVector = Vector<ValueComparingNonnullRefPtr<CSSStyleValue const>>;
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								// https://drafts.css-houdini.org/css-typed-om-1/#cssstylevalue
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								class CSSStyleValue : public RefCounted<CSSStyleValue> {
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								public:
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								    virtual ~CSSStyleValue() = default;
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								    enum class Type {
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								        Angle,
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								        BackgroundRepeat,
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								        BackgroundSize,
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								        BasicShape,
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								        BorderRadius,
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								        Calculated,
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								        Color,
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								        ColorScheme,
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								        ConicGradient,
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								        Content,
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								        Counter,
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								        CounterDefinitions,
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								        Cursor,
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								        CustomIdent,
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								        Display,
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								        Easing,
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								        Edge,
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								        FilterValueList,
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								        FitContent,
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								        Flex,
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								        FontSource,
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											2024-12-05 01:19:03 +01:00
										 
									 
								 
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								        FontVariant,
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								        Frequency,
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								        GridAutoFlow,
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								        GridTemplateArea,
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								        GridTrackPlacement,
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								        GridTrackSizeList,
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								        Image,
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								        Integer,
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								        Keyword,
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								        Length,
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								        LinearGradient,
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								        MathDepth,
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								        Number,
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								        OpenTypeTagged,
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								        Percentage,
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								        Position,
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								        RadialGradient,
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								        Ratio,
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								        Rect,
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								        Resolution,
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								        ScrollbarGutter,
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								        Shadow,
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								        Shorthand,
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								        String,
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								        Time,
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								        Transformation,
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								        Transition,
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											2025-03-27 17:35:06 +00:00
										 
									 
								 
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								        UnicodeRange,
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								        Unresolved,
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								        URL,
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								        ValueList,
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											2019-06-20 23:25:25 +02:00
										 
									 
								 
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								    };
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								    Type type() const { return m_type; }
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											2023-08-20 13:48:13 +01:00
										 
									 
								 
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								    bool is_abstract_image() const
							 | 
						
					
						
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								    {
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								        return AK::first_is_one_of(type(), Type::Image, Type::LinearGradient, Type::ConicGradient, Type::RadialGradient);
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								    }
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											2022-07-31 01:11:59 +01:00
										 
									 
								 
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								    AbstractImageStyleValue const& as_abstract_image() const;
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    AbstractImageStyleValue& as_abstract_image() { return const_cast<AbstractImageStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_abstract_image()); }
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											2023-08-20 13:48:13 +01:00
										 
									 
								 
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_angle() const { return type() == Type::Angle; }
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								    AngleStyleValue const& as_angle() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    AngleStyleValue& as_angle() { return const_cast<AngleStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_angle()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_background_repeat() const { return type() == Type::BackgroundRepeat; }
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								    BackgroundRepeatStyleValue const& as_background_repeat() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    BackgroundRepeatStyleValue& as_background_repeat() { return const_cast<BackgroundRepeatStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_background_repeat()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_background_size() const { return type() == Type::BackgroundSize; }
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								    BackgroundSizeStyleValue const& as_background_size() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    BackgroundSizeStyleValue& as_background_size() { return const_cast<BackgroundSizeStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_background_size()); }
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_basic_shape() const { return type() == Type::BasicShape; }
							 | 
						
					
						
							| 
								
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								    BasicShapeStyleValue const& as_basic_shape() const;
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    BasicShapeStyleValue& as_basic_shape() { return const_cast<BasicShapeStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_basic_shape()); }
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_border_radius() const { return type() == Type::BorderRadius; }
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								    BorderRadiusStyleValue const& as_border_radius() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    BorderRadiusStyleValue& as_border_radius() { return const_cast<BorderRadiusStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_border_radius()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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											2024-12-11 15:05:56 +00:00
										 
									 
								 
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								    bool is_calculated() const { return type() == Type::Calculated; }
							 | 
						
					
						
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								    CalculatedStyleValue const& as_calculated() const;
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								    CalculatedStyleValue& as_calculated() { return const_cast<CalculatedStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_calculated()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_color() const { return type() == Type::Color; }
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											2024-08-14 16:37:02 +01:00
										 
									 
								 
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								    CSSColorValue const& as_color() const;
							 | 
						
					
						
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								    CSSColorValue& as_color() { return const_cast<CSSColorValue&>(const_cast<CSSStyleValue const&>(*this).as_color()); }
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											2025-04-05 23:27:50 +01:00
										 
									 
								 
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								    virtual bool is_color_function() const { return false; }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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											2025-01-02 12:59:09 +11:00
										 
									 
								 
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								    bool is_color_scheme() const { return type() == Type::ColorScheme; }
							 | 
						
					
						
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								    ColorSchemeStyleValue const& as_color_scheme() const;
							 | 
						
					
						
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								    ColorSchemeStyleValue& as_color_scheme() { return const_cast<ColorSchemeStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_color_scheme()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_conic_gradient() const { return type() == Type::ConicGradient; }
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								    ConicGradientStyleValue const& as_conic_gradient() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    ConicGradientStyleValue& as_conic_gradient() { return const_cast<ConicGradientStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_conic_gradient()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_content() const { return type() == Type::Content; }
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								    ContentStyleValue const& as_content() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    ContentStyleValue& as_content() { return const_cast<ContentStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_content()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_counter() const { return type() == Type::Counter; }
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								    CounterStyleValue const& as_counter() const;
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    CounterStyleValue& as_counter() { return const_cast<CounterStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_counter()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_counter_definitions() const { return type() == Type::CounterDefinitions; }
							 | 
						
					
						
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								    CounterDefinitionsStyleValue const& as_counter_definitions() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    CounterDefinitionsStyleValue& as_counter_definitions() { return const_cast<CounterDefinitionsStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_counter_definitions()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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											2025-02-21 13:04:20 +00:00
										 
									 
								 
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								    bool is_cursor() const { return type() == Type::Cursor; }
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								    CursorStyleValue const& as_cursor() const;
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								    CursorStyleValue& as_cursor() { return const_cast<CursorStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_cursor()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_custom_ident() const { return type() == Type::CustomIdent; }
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								    CustomIdentStyleValue const& as_custom_ident() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    CustomIdentStyleValue& as_custom_ident() { return const_cast<CustomIdentStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_custom_ident()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_display() const { return type() == Type::Display; }
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								    DisplayStyleValue const& as_display() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    DisplayStyleValue& as_display() { return const_cast<DisplayStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_display()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_easing() const { return type() == Type::Easing; }
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								    EasingStyleValue const& as_easing() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    EasingStyleValue& as_easing() { return const_cast<EasingStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_easing()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_edge() const { return type() == Type::Edge; }
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								    EdgeStyleValue const& as_edge() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    EdgeStyleValue& as_edge() { return const_cast<EdgeStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_edge()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_filter_value_list() const { return type() == Type::FilterValueList; }
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								    FilterValueListStyleValue const& as_filter_value_list() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    FilterValueListStyleValue& as_filter_value_list() { return const_cast<FilterValueListStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_filter_value_list()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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											2025-02-26 18:16:36 +01:00
										 
									 
								 
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								    [[nodiscard]] bool is_fit_content() const { return type() == Type::FitContent; }
							 | 
						
					
						
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								    [[nodiscard]] FitContentStyleValue const& as_fit_content() const;
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							 | 
							
							
								    [[nodiscard]] FitContentStyleValue& as_fit_content() { return const_cast<FitContentStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_fit_content()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_flex() const { return type() == Type::Flex; }
							 | 
						
					
						
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								    FlexStyleValue const& as_flex() const;
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    FlexStyleValue& as_flex() { return const_cast<FlexStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_flex()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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											2025-04-02 17:01:16 +01:00
										 
									 
								 
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								    bool is_font_source() const { return type() == Type::FontSource; }
							 | 
						
					
						
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								    FontSourceStyleValue const& as_font_source() const;
							 | 
						
					
						
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								    FontSourceStyleValue& as_font_source() { return const_cast<FontSourceStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_font_source()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_frequency() const { return type() == Type::Frequency; }
							 | 
						
					
						
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								    FrequencyStyleValue const& as_frequency() const;
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    FrequencyStyleValue& as_frequency() { return const_cast<FrequencyStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_frequency()); }
							 | 
						
					
						
							
								
									
										
										
										
											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_grid_auto_flow() const { return type() == Type::GridAutoFlow; }
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								    GridAutoFlowStyleValue const& as_grid_auto_flow() const;
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								    GridAutoFlowStyleValue& as_grid_auto_flow() { return const_cast<GridAutoFlowStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_grid_auto_flow()); }
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								    bool is_grid_template_area() const { return type() == Type::GridTemplateArea; }
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								    GridTemplateAreaStyleValue const& as_grid_template_area() const;
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								    GridTemplateAreaStyleValue& as_grid_template_area() { return const_cast<GridTemplateAreaStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_grid_template_area()); }
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								    bool is_grid_track_placement() const { return type() == Type::GridTrackPlacement; }
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								    GridTrackPlacementStyleValue const& as_grid_track_placement() const;
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								    GridTrackPlacementStyleValue& as_grid_track_placement() { return const_cast<GridTrackPlacementStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_grid_track_placement()); }
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								    bool is_grid_track_size_list() const { return type() == Type::GridTrackSizeList; }
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								    GridTrackSizeListStyleValue const& as_grid_track_size_list() const;
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								    GridTrackSizeListStyleValue& as_grid_track_size_list() { return const_cast<GridTrackSizeListStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_grid_track_size_list()); }
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								    bool is_image() const { return type() == Type::Image; }
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								    ImageStyleValue const& as_image() const;
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								    ImageStyleValue& as_image() { return const_cast<ImageStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_image()); }
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								    bool is_integer() const { return type() == Type::Integer; }
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								    IntegerStyleValue const& as_integer() const;
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								    IntegerStyleValue& as_integer() { return const_cast<IntegerStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_integer()); }
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								    bool is_keyword() const { return type() == Type::Keyword; }
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								    CSSKeywordValue const& as_keyword() const;
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								    CSSKeywordValue& as_keyword() { return const_cast<CSSKeywordValue&>(const_cast<CSSStyleValue const&>(*this).as_keyword()); }
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								    bool is_length() const { return type() == Type::Length; }
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								    LengthStyleValue const& as_length() const;
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								    LengthStyleValue& as_length() { return const_cast<LengthStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_length()); }
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								    bool is_linear_gradient() const { return type() == Type::LinearGradient; }
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								    LinearGradientStyleValue const& as_linear_gradient() const;
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								    LinearGradientStyleValue& as_linear_gradient() { return const_cast<LinearGradientStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_linear_gradient()); }
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								    bool is_math_depth() const { return type() == Type::MathDepth; }
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								    MathDepthStyleValue const& as_math_depth() const;
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								    MathDepthStyleValue& as_math_depth() { return const_cast<MathDepthStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_math_depth()); }
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								    bool is_number() const { return type() == Type::Number; }
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								    NumberStyleValue const& as_number() const;
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								    NumberStyleValue& as_number() { return const_cast<NumberStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_number()); }
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								    bool is_open_type_tagged() const { return type() == Type::OpenTypeTagged; }
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								    OpenTypeTaggedStyleValue const& as_open_type_tagged() const;
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								    OpenTypeTaggedStyleValue& as_open_type_tagged() { return const_cast<OpenTypeTaggedStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_open_type_tagged()); }
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								    bool is_percentage() const { return type() == Type::Percentage; }
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								    PercentageStyleValue const& as_percentage() const;
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								    PercentageStyleValue& as_percentage() { return const_cast<PercentageStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_percentage()); }
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								    bool is_position() const { return type() == Type::Position; }
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								    PositionStyleValue const& as_position() const;
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								    PositionStyleValue& as_position() { return const_cast<PositionStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_position()); }
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								    bool is_radial_gradient() const { return type() == Type::RadialGradient; }
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								    RadialGradientStyleValue const& as_radial_gradient() const;
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								    RadialGradientStyleValue& as_radial_gradient() { return const_cast<RadialGradientStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_radial_gradient()); }
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								    bool is_ratio() const { return type() == Type::Ratio; }
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								    RatioStyleValue const& as_ratio() const;
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								    RatioStyleValue& as_ratio() { return const_cast<RatioStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_ratio()); }
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								    bool is_rect() const { return type() == Type::Rect; }
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								    RectStyleValue const& as_rect() const;
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								    RectStyleValue& as_rect() { return const_cast<RectStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_rect()); }
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								    bool is_resolution() const { return type() == Type::Resolution; }
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								    ResolutionStyleValue const& as_resolution() const;
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								    ResolutionStyleValue& as_resolution() { return const_cast<ResolutionStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_resolution()); }
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								    bool is_scrollbar_gutter() const { return type() == Type::ScrollbarGutter; }
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								    ScrollbarGutterStyleValue const& as_scrollbar_gutter() const;
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								    ScrollbarGutterStyleValue& as_scrollbar_gutter() { return const_cast<ScrollbarGutterStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_scrollbar_gutter()); }
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								    bool is_shadow() const { return type() == Type::Shadow; }
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								    ShadowStyleValue const& as_shadow() const;
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								    ShadowStyleValue& as_shadow() { return const_cast<ShadowStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_shadow()); }
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								    bool is_shorthand() const { return type() == Type::Shorthand; }
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								    ShorthandStyleValue const& as_shorthand() const;
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								    ShorthandStyleValue& as_shorthand() { return const_cast<ShorthandStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_shorthand()); }
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								    bool is_string() const { return type() == Type::String; }
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								    StringStyleValue const& as_string() const;
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								    StringStyleValue& as_string() { return const_cast<StringStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_string()); }
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								    bool is_time() const { return type() == Type::Time; }
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								    TimeStyleValue const& as_time() const;
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								    TimeStyleValue& as_time() { return const_cast<TimeStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_time()); }
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								    bool is_transformation() const { return type() == Type::Transformation; }
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								    TransformationStyleValue const& as_transformation() const;
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								    TransformationStyleValue& as_transformation() { return const_cast<TransformationStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_transformation()); }
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								    bool is_transition() const { return type() == Type::Transition; }
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								    TransitionStyleValue const& as_transition() const;
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								    TransitionStyleValue& as_transition() { return const_cast<TransitionStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_transition()); }
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								    bool is_unicode_range() const { return type() == Type::UnicodeRange; }
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								    UnicodeRangeStyleValue const& as_unicode_range() const;
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								    UnicodeRangeStyleValue& as_unicode_range() { return const_cast<UnicodeRangeStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_unicode_range()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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								    bool is_unresolved() const { return type() == Type::Unresolved; }
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								    UnresolvedStyleValue const& as_unresolved() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    UnresolvedStyleValue& as_unresolved() { return const_cast<UnresolvedStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_unresolved()); }
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								    bool is_url() const { return type() == Type::URL; }
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								    URLStyleValue const& as_url() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    URLStyleValue& as_url() { return const_cast<URLStyleValue&>(const_cast<CSSStyleValue const&>(*this).as_url()); }
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								    bool is_value_list() const { return type() == Type::ValueList; }
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								    StyleValueList const& as_value_list() const;
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    StyleValueList& as_value_list() { return const_cast<StyleValueList&>(const_cast<CSSStyleValue const&>(*this).as_value_list()); }
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											2024-08-14 10:54:09 +01:00
										 
									 
								 
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											2023-09-20 16:58:45 +01:00
										 
									 
								 
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								    // https://www.w3.org/TR/css-values-4/#common-keywords
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								    // https://drafts.csswg.org/css-cascade-4/#valdef-all-revert
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											2024-09-11 20:13:44 +08:00
										 
									 
								 
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								    bool is_css_wide_keyword() const { return is_inherit() || is_initial() || is_revert() || is_unset() || is_revert_layer(); }
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											2024-08-14 15:00:10 +01:00
										 
									 
								 
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								    bool is_inherit() const { return to_keyword() == Keyword::Inherit; }
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								    bool is_initial() const { return to_keyword() == Keyword::Initial; }
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								    bool is_revert() const { return to_keyword() == Keyword::Revert; }
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											2024-09-11 20:13:44 +08:00
										 
									 
								 
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								    bool is_revert_layer() const { return to_keyword() == Keyword::RevertLayer; }
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											2024-08-14 15:00:10 +01:00
										 
									 
								 
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								    bool is_unset() const { return to_keyword() == Keyword::Unset; }
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											2021-09-23 19:54:19 +01:00
										 
									 
								 
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											2023-04-19 12:00:38 +01:00
										 
									 
								 
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								    bool has_auto() const;
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											2021-09-23 19:54:19 +01:00
										 
									 
								 
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								    virtual bool has_color() const { return false; }
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											2021-09-23 12:45:08 +01:00
										 
									 
								 
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    virtual ValueComparingNonnullRefPtr<CSSStyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const;
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											2022-02-26 01:35:25 +01:00
										 
									 
								 
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											2023-04-19 18:31:00 +01:00
										 
									 
								 
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								    virtual Color to_color(Optional<Layout::NodeWithStyle const&>) const { return {}; }
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											2024-08-14 14:06:03 +01:00
										 
									 
								 
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								    Keyword to_keyword() const;
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											2024-12-07 00:59:49 +01:00
										 
									 
								 
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								    enum class SerializationMode {
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								        Normal,
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								        ResolvedValue,
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								    };
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								    virtual String to_string(SerializationMode) const = 0;
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											2019-08-18 08:09:56 +02:00
										 
									 
								 
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											2023-05-24 15:28:09 +02:00
										 
									 
								 
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								    [[nodiscard]] int to_font_weight() const;
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								    [[nodiscard]] int to_font_slope() const;
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											2024-09-27 14:04:59 +01:00
										 
									 
								 
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								    [[nodiscard]] int to_font_width() const;
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											2025-04-10 16:35:59 +01:00
										 
									 
								 
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								    virtual void set_style_sheet(GC::Ptr<CSSStyleSheet>) { }
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								    virtual void visit_edges(JS::Cell::Visitor&) const { }
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								    virtual bool equals(CSSStyleValue const& other) const = 0;
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											2023-02-20 00:41:51 +00:00
										 
									 
								 
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								    bool operator==(CSSStyleValue const& other) const
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											2023-02-20 00:41:51 +00:00
										 
									 
								 
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								    {
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								        return this->equals(other);
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								    }
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											2020-12-14 15:04:13 +01:00
										 
									 
								 
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											2019-06-20 23:25:25 +02:00
										 
									 
								 
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								protected:
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								    explicit CSSStyleValue(Type);
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								private:
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											2023-05-06 12:43:29 +01:00
										 
									 
								 
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								    Type m_type;
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											2019-06-20 23:25:25 +02:00
										 
									 
								 
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								};
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											2019-06-22 21:48:21 +02:00
										 
									 
								 
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											2023-02-11 19:12:00 +01:00
										 
									 
								 
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								template<typename T>
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								struct StyleValueWithDefaultOperators : public CSSStyleValue {
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								    using CSSStyleValue::CSSStyleValue;
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											2025-04-10 16:35:59 +01:00
										 
									 
								 
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								    using Base = CSSStyleValue;
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											2023-02-11 19:12:00 +01:00
										 
									 
								 
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								    virtual bool equals(CSSStyleValue const& other) const override
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											2023-02-11 19:12:00 +01:00
										 
									 
								 
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								    {
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								        if (type() != other.type())
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								            return false;
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								        auto const& typed_other = static_cast<T const&>(other);
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											2023-02-20 00:41:51 +00:00
										 
									 
								 
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								        return static_cast<T const&>(*this).properties_equal(typed_other);
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											2023-02-11 19:12:00 +01:00
										 
									 
								 
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								    }
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								};
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											2020-03-07 10:27:02 +01:00
										 
									 
								 
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								}
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											2022-02-02 20:53:55 +00:00
										 
									 
								 
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								template<>
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											2024-08-14 11:10:54 +01:00
										 
									 
								 
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								struct AK::Formatter<Web::CSS::CSSStyleValue> : Formatter<StringView> {
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								    ErrorOr<void> format(FormatBuilder& builder, Web::CSS::CSSStyleValue const& style_value)
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											2022-02-02 20:53:55 +00:00
										 
									 
								 
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								    {
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											2024-12-07 00:59:49 +01:00
										 
									 
								 
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								        return Formatter<StringView>::format(builder, style_value.to_string(Web::CSS::CSSStyleValue::SerializationMode::Normal));
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											2022-02-02 20:53:55 +00:00
										 
									 
								 
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								    }
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								};
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