mirror of
https://github.com/RGBCube/serenity
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be10360350
This isn't exactly ideal factoring (though I'm not sure what is) but this will make it possible to reuse this code in the parser.
345 lines
18 KiB
C++
345 lines
18 KiB
C++
/*
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* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@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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#pragma once
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#include <AK/Concepts.h>
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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/URL.h>
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#include <AK/Variant.h>
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#include <AK/Vector.h>
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#include <AK/WeakPtr.h>
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#include <LibGfx/Painter.h>
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#include <LibWeb/CSS/Enums.h>
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#include <LibWeb/CSS/Length.h>
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#include <LibWeb/CSS/ValueID.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<StyleValue const>>;
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class StyleValue : public RefCounted<StyleValue> {
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public:
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virtual ~StyleValue() = default;
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enum class Type {
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Angle,
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Background,
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BackgroundRepeat,
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BackgroundSize,
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Border,
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BorderRadius,
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BorderRadiusShorthand,
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Calculated,
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Color,
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ConicGradient,
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Content,
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Display,
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Edge,
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FilterValueList,
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Flex,
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FlexFlow,
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Font,
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Frequency,
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GridAreaShorthand,
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GridTemplateArea,
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GridTrackPlacement,
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GridTrackPlacementShorthand,
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GridTrackSizeList,
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GridTrackSizeListShorthand,
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Identifier,
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Image,
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Inherit,
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Initial,
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Invalid,
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Length,
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LinearGradient,
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ListStyle,
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Numeric,
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Overflow,
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Percentage,
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Position,
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RadialGradient,
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Rect,
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Resolution,
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Shadow,
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String,
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TextDecoration,
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Time,
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Transformation,
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Unresolved,
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Unset,
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Url,
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ValueList
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};
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Type type() const { return m_type; }
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bool is_abstract_image() const { return AK::first_is_one_of(type(), Type::Image, Type::LinearGradient, Type::ConicGradient, Type::RadialGradient); }
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bool is_angle() const { return type() == Type::Angle; }
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bool is_background() const { return type() == Type::Background; }
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bool is_background_repeat() const { return type() == Type::BackgroundRepeat; }
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bool is_background_size() const { return type() == Type::BackgroundSize; }
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bool is_border() const { return type() == Type::Border; }
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bool is_border_radius() const { return type() == Type::BorderRadius; }
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bool is_border_radius_shorthand() const { return type() == Type::BorderRadiusShorthand; }
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bool is_calculated() const { return type() == Type::Calculated; }
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bool is_color() const { return type() == Type::Color; }
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bool is_conic_gradient() const { return type() == Type::ConicGradient; }
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bool is_content() const { return type() == Type::Content; }
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bool is_display() const { return type() == Type::Display; }
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bool is_edge() const { return type() == Type::Edge; }
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bool is_filter_value_list() const { return type() == Type::FilterValueList; }
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bool is_flex() const { return type() == Type::Flex; }
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bool is_flex_flow() const { return type() == Type::FlexFlow; }
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bool is_font() const { return type() == Type::Font; }
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bool is_frequency() const { return type() == Type::Frequency; }
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bool is_grid_area_shorthand() const { return type() == Type::GridAreaShorthand; }
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bool is_grid_template_area() const { return type() == Type::GridTemplateArea; }
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bool is_grid_track_placement() const { return type() == Type::GridTrackPlacement; }
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bool is_grid_track_placement_shorthand() const { return type() == Type::GridTrackPlacementShorthand; }
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bool is_grid_track_size_list() const { return type() == Type::GridTrackSizeList; }
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bool is_grid_track_size_list_shorthand() const { return type() == Type::GridTrackSizeListShorthand; }
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bool is_identifier() const { return type() == Type::Identifier; }
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bool is_image() const { return type() == Type::Image; }
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bool is_inherit() const { return type() == Type::Inherit; }
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bool is_initial() const { return type() == Type::Initial; }
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bool is_length() const { return type() == Type::Length; }
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bool is_linear_gradient() const { return type() == Type::LinearGradient; }
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bool is_list_style() const { return type() == Type::ListStyle; }
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bool is_numeric() const { return type() == Type::Numeric; }
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bool is_overflow() const { return type() == Type::Overflow; }
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bool is_percentage() const { return type() == Type::Percentage; }
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bool is_position() const { return type() == Type::Position; }
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bool is_radial_gradient() const { return type() == Type::RadialGradient; }
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bool is_rect() const { return type() == Type::Rect; }
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bool is_resolution() const { return type() == Type::Resolution; }
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bool is_shadow() const { return type() == Type::Shadow; }
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bool is_string() const { return type() == Type::String; }
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bool is_text_decoration() const { return type() == Type::TextDecoration; }
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bool is_time() const { return type() == Type::Time; }
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bool is_transformation() const { return type() == Type::Transformation; }
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bool is_unresolved() const { return type() == Type::Unresolved; }
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bool is_unset() const { return type() == Type::Unset; }
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bool is_url() const { return type() == Type::Url; }
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bool is_value_list() const { return type() == Type::ValueList; }
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bool is_builtin() const { return is_inherit() || is_initial() || is_unset(); }
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AbstractImageStyleValue const& as_abstract_image() const;
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AngleStyleValue const& as_angle() const;
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BackgroundStyleValue const& as_background() const;
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BackgroundRepeatStyleValue const& as_background_repeat() const;
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BackgroundSizeStyleValue const& as_background_size() const;
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BorderRadiusStyleValue const& as_border_radius() const;
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BorderRadiusShorthandStyleValue const& as_border_radius_shorthand() const;
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BorderStyleValue const& as_border() const;
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CalculatedStyleValue const& as_calculated() const;
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ColorStyleValue const& as_color() const;
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ConicGradientStyleValue const& as_conic_gradient() const;
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ContentStyleValue const& as_content() const;
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DisplayStyleValue const& as_display() const;
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EdgeStyleValue const& as_edge() const;
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FilterValueListStyleValue const& as_filter_value_list() const;
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FlexFlowStyleValue const& as_flex_flow() const;
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FlexStyleValue const& as_flex() const;
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FontStyleValue const& as_font() const;
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FrequencyStyleValue const& as_frequency() const;
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GridAreaShorthandStyleValue const& as_grid_area_shorthand() const;
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GridTemplateAreaStyleValue const& as_grid_template_area() const;
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GridTrackPlacementShorthandStyleValue const& as_grid_track_placement_shorthand() const;
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GridTrackPlacementStyleValue const& as_grid_track_placement() const;
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GridTrackSizeListShorthandStyleValue const& as_grid_track_size_list_shorthand() const;
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GridTrackSizeListStyleValue const& as_grid_track_size_list() const;
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IdentifierStyleValue const& as_identifier() const;
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ImageStyleValue const& as_image() const;
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InheritStyleValue const& as_inherit() const;
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InitialStyleValue const& as_initial() const;
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LengthStyleValue const& as_length() const;
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LinearGradientStyleValue const& as_linear_gradient() const;
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ListStyleStyleValue const& as_list_style() const;
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NumericStyleValue const& as_numeric() const;
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OverflowStyleValue const& as_overflow() const;
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PercentageStyleValue const& as_percentage() const;
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PositionStyleValue const& as_position() const;
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RadialGradientStyleValue const& as_radial_gradient() const;
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RectStyleValue const& as_rect() const;
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ResolutionStyleValue const& as_resolution() const;
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ShadowStyleValue const& as_shadow() const;
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StringStyleValue const& as_string() const;
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TextDecorationStyleValue const& as_text_decoration() const;
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TimeStyleValue const& as_time() const;
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TransformationStyleValue const& as_transformation() const;
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UnresolvedStyleValue const& as_unresolved() const;
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UnsetStyleValue const& as_unset() const;
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URLStyleValue const& as_url() const;
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StyleValueList const& as_value_list() const;
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AbstractImageStyleValue& as_abstract_image() { return const_cast<AbstractImageStyleValue&>(const_cast<StyleValue const&>(*this).as_abstract_image()); }
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AngleStyleValue& as_angle() { return const_cast<AngleStyleValue&>(const_cast<StyleValue const&>(*this).as_angle()); }
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BackgroundStyleValue& as_background() { return const_cast<BackgroundStyleValue&>(const_cast<StyleValue const&>(*this).as_background()); }
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BackgroundRepeatStyleValue& as_background_repeat() { return const_cast<BackgroundRepeatStyleValue&>(const_cast<StyleValue const&>(*this).as_background_repeat()); }
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BackgroundSizeStyleValue& as_background_size() { return const_cast<BackgroundSizeStyleValue&>(const_cast<StyleValue const&>(*this).as_background_size()); }
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BorderRadiusStyleValue& as_border_radius() { return const_cast<BorderRadiusStyleValue&>(const_cast<StyleValue const&>(*this).as_border_radius()); }
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BorderRadiusShorthandStyleValue& as_border_radius_shorthand() { return const_cast<BorderRadiusShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_border_radius_shorthand()); }
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BorderStyleValue& as_border() { return const_cast<BorderStyleValue&>(const_cast<StyleValue const&>(*this).as_border()); }
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CalculatedStyleValue& as_calculated() { return const_cast<CalculatedStyleValue&>(const_cast<StyleValue const&>(*this).as_calculated()); }
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ColorStyleValue& as_color() { return const_cast<ColorStyleValue&>(const_cast<StyleValue const&>(*this).as_color()); }
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ConicGradientStyleValue& as_conic_gradient() { return const_cast<ConicGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_conic_gradient()); }
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ContentStyleValue& as_content() { return const_cast<ContentStyleValue&>(const_cast<StyleValue const&>(*this).as_content()); }
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DisplayStyleValue& as_display() { return const_cast<DisplayStyleValue&>(const_cast<StyleValue const&>(*this).as_display()); }
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EdgeStyleValue& as_edge() { return const_cast<EdgeStyleValue&>(const_cast<StyleValue const&>(*this).as_edge()); }
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FilterValueListStyleValue& as_filter_value_list() { return const_cast<FilterValueListStyleValue&>(const_cast<StyleValue const&>(*this).as_filter_value_list()); }
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FlexFlowStyleValue& as_flex_flow() { return const_cast<FlexFlowStyleValue&>(const_cast<StyleValue const&>(*this).as_flex_flow()); }
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FlexStyleValue& as_flex() { return const_cast<FlexStyleValue&>(const_cast<StyleValue const&>(*this).as_flex()); }
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FontStyleValue& as_font() { return const_cast<FontStyleValue&>(const_cast<StyleValue const&>(*this).as_font()); }
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FrequencyStyleValue& as_frequency() { return const_cast<FrequencyStyleValue&>(const_cast<StyleValue const&>(*this).as_frequency()); }
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GridAreaShorthandStyleValue& as_grid_area_shorthand() { return const_cast<GridAreaShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_area_shorthand()); }
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GridTemplateAreaStyleValue& as_grid_template_area() { return const_cast<GridTemplateAreaStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_template_area()); }
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GridTrackPlacementShorthandStyleValue& as_grid_track_placement_shorthand() { return const_cast<GridTrackPlacementShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_placement_shorthand()); }
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GridTrackPlacementStyleValue& as_grid_track_placement() { return const_cast<GridTrackPlacementStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_placement()); }
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GridTrackSizeListShorthandStyleValue& as_grid_track_size_list_shorthand() { return const_cast<GridTrackSizeListShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_size_list_shorthand()); }
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GridTrackSizeListStyleValue& as_grid_track_size_list() { return const_cast<GridTrackSizeListStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_size_list()); }
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IdentifierStyleValue& as_identifier() { return const_cast<IdentifierStyleValue&>(const_cast<StyleValue const&>(*this).as_identifier()); }
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ImageStyleValue& as_image() { return const_cast<ImageStyleValue&>(const_cast<StyleValue const&>(*this).as_image()); }
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InheritStyleValue& as_inherit() { return const_cast<InheritStyleValue&>(const_cast<StyleValue const&>(*this).as_inherit()); }
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InitialStyleValue& as_initial() { return const_cast<InitialStyleValue&>(const_cast<StyleValue const&>(*this).as_initial()); }
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LengthStyleValue& as_length() { return const_cast<LengthStyleValue&>(const_cast<StyleValue const&>(*this).as_length()); }
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LinearGradientStyleValue& as_linear_gradient() { return const_cast<LinearGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_linear_gradient()); }
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ListStyleStyleValue& as_list_style() { return const_cast<ListStyleStyleValue&>(const_cast<StyleValue const&>(*this).as_list_style()); }
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NumericStyleValue& as_numeric() { return const_cast<NumericStyleValue&>(const_cast<StyleValue const&>(*this).as_numeric()); }
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OverflowStyleValue& as_overflow() { return const_cast<OverflowStyleValue&>(const_cast<StyleValue const&>(*this).as_overflow()); }
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PercentageStyleValue& as_percentage() { return const_cast<PercentageStyleValue&>(const_cast<StyleValue const&>(*this).as_percentage()); }
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PositionStyleValue& as_position() { return const_cast<PositionStyleValue&>(const_cast<StyleValue const&>(*this).as_position()); }
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RadialGradientStyleValue& as_radial_gradient() { return const_cast<RadialGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_radial_gradient()); }
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RectStyleValue& as_rect() { return const_cast<RectStyleValue&>(const_cast<StyleValue const&>(*this).as_rect()); }
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ResolutionStyleValue& as_resolution() { return const_cast<ResolutionStyleValue&>(const_cast<StyleValue const&>(*this).as_resolution()); }
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ShadowStyleValue& as_shadow() { return const_cast<ShadowStyleValue&>(const_cast<StyleValue const&>(*this).as_shadow()); }
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StringStyleValue& as_string() { return const_cast<StringStyleValue&>(const_cast<StyleValue const&>(*this).as_string()); }
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TextDecorationStyleValue& as_text_decoration() { return const_cast<TextDecorationStyleValue&>(const_cast<StyleValue const&>(*this).as_text_decoration()); }
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TimeStyleValue& as_time() { return const_cast<TimeStyleValue&>(const_cast<StyleValue const&>(*this).as_time()); }
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TransformationStyleValue& as_transformation() { return const_cast<TransformationStyleValue&>(const_cast<StyleValue const&>(*this).as_transformation()); }
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UnresolvedStyleValue& as_unresolved() { return const_cast<UnresolvedStyleValue&>(const_cast<StyleValue const&>(*this).as_unresolved()); }
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UnsetStyleValue& as_unset() { return const_cast<UnsetStyleValue&>(const_cast<StyleValue const&>(*this).as_unset()); }
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URLStyleValue& as_url() { return const_cast<URLStyleValue&>(const_cast<StyleValue const&>(*this).as_url()); }
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StyleValueList& as_value_list() { return const_cast<StyleValueList&>(const_cast<StyleValue const&>(*this).as_value_list()); }
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bool has_auto() const;
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virtual bool has_color() const { return false; }
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virtual bool has_length() const { return false; }
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virtual bool has_rect() const { return false; }
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virtual bool has_number() const { return false; }
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virtual bool has_integer() const { return false; }
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virtual ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const;
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virtual Color to_color(Optional<Layout::NodeWithStyle const&>) const { return {}; }
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ValueID to_identifier() const;
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virtual Length to_length() const { VERIFY_NOT_REACHED(); }
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virtual float to_number() const { return 0; }
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virtual float to_integer() const { return 0; }
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virtual ErrorOr<String> to_string() const = 0;
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[[nodiscard]] int to_font_weight() const;
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[[nodiscard]] int to_font_slope() const;
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virtual bool equals(StyleValue const& other) const = 0;
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bool operator==(StyleValue const& other) const
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{
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return this->equals(other);
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}
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protected:
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explicit StyleValue(Type);
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private:
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Type m_type { Type::Invalid };
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};
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template<typename T>
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struct StyleValueWithDefaultOperators : public StyleValue {
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using StyleValue::StyleValue;
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virtual bool equals(StyleValue const& other) const override
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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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return static_cast<T const&>(*this).properties_equal(typed_other);
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}
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};
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}
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template<>
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struct AK::Formatter<Web::CSS::StyleValue> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Web::CSS::StyleValue const& style_value)
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{
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return Formatter<StringView>::format(builder, TRY(style_value.to_string()));
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}
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};
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