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			2108 lines
		
	
	
	
		
			86 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			2108 lines
		
	
	
	
		
			86 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2018-2020, 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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| 
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| #pragma once
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| 
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| #include <AK/Concepts.h>
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| #include <AK/DeprecatedString.h>
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| #include <AK/Function.h>
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| #include <AK/GenericShorthands.h>
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| #include <AK/NonnullOwnPtr.h>
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| #include <AK/NonnullOwnPtrVector.h>
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| #include <AK/NonnullRefPtrVector.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/Bitmap.h>
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| #include <LibGfx/Color.h>
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| #include <LibGfx/Painter.h>
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| #include <LibWeb/CSS/Angle.h>
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| #include <LibWeb/CSS/Display.h>
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| #include <LibWeb/CSS/Enums.h>
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| #include <LibWeb/CSS/Frequency.h>
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| #include <LibWeb/CSS/GridTrackPlacement.h>
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| #include <LibWeb/CSS/GridTrackSize.h>
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| #include <LibWeb/CSS/Length.h>
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| #include <LibWeb/CSS/Number.h>
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| #include <LibWeb/CSS/Parser/ComponentValue.h>
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| #include <LibWeb/CSS/Percentage.h>
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| #include <LibWeb/CSS/PropertyID.h>
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| #include <LibWeb/CSS/Resolution.h>
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| #include <LibWeb/CSS/Time.h>
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| #include <LibWeb/CSS/TransformFunctions.h>
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| #include <LibWeb/CSS/ValueID.h>
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| #include <LibWeb/Forward.h>
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| #include <LibWeb/Loader/ImageResource.h>
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| #include <LibWeb/Painting/GradientPainting.h>
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| 
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| namespace Web::CSS {
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| 
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| enum class BackgroundSize {
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|     Contain,
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|     Cover,
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|     LengthPercentage,
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| };
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| 
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| enum class ShadowPlacement {
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|     Outer,
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|     Inner,
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| };
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| 
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| enum class FlexBasis {
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|     Content,
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|     LengthPercentage,
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|     Auto,
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| };
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| 
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| // Note: The sides must be before the corners in this enum (as this order is used in parsing).
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| enum class SideOrCorner {
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|     Top,
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|     Bottom,
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|     Left,
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|     Right,
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|     TopLeft,
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|     TopRight,
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|     BottomLeft,
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|     BottomRight
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| };
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| 
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| template<typename TPosition>
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| struct ColorStopListElement {
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|     using PositionType = TPosition;
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|     struct ColorHint {
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|         TPosition value;
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|         inline bool operator==(ColorHint const&) const = default;
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|     };
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| 
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|     Optional<ColorHint> transition_hint;
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|     struct ColorStop {
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|         Color color;
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|         Optional<TPosition> position;
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|         Optional<TPosition> second_position = {};
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|         inline bool operator==(ColorStop const&) const = default;
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|     } color_stop;
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| 
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|     inline bool operator==(ColorStopListElement const&) const = default;
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| };
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| 
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| using LinearColorStopListElement = ColorStopListElement<LengthPercentage>;
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| using AngularColorStopListElement = ColorStopListElement<AnglePercentage>;
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| 
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| // FIXME: Named PositionValue to avoid conflicts with enums, but this represents a <position>
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| struct PositionValue {
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|     enum class HorizontalPreset {
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|         Left,
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|         Center,
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|         Right
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|     };
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| 
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|     enum class VerticalPreset {
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|         Top,
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|         Center,
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|         Bottom
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|     };
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| 
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|     enum class HorizontalEdge {
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|         Left,
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|         Right
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|     };
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| 
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|     enum class VerticalEdge {
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|         Top,
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|         Bottom
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|     };
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| 
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|     static PositionValue center()
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|     {
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|         return PositionValue { HorizontalPreset::Center, VerticalPreset::Center };
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|     }
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| 
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|     Variant<HorizontalPreset, LengthPercentage> horizontal_position { HorizontalPreset::Left };
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|     Variant<VerticalPreset, LengthPercentage> vertical_position { VerticalPreset::Top };
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|     HorizontalEdge x_relative_to { HorizontalEdge::Left };
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|     VerticalEdge y_relative_to { VerticalEdge::Top };
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| 
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|     CSSPixelPoint resolved(Layout::Node const& node, CSSPixelRect const& rect) const;
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|     ErrorOr<void> serialize(StringBuilder&) const;
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|     bool operator==(PositionValue const&) const = default;
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| };
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| 
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| struct EdgeRect {
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|     Length top_edge;
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|     Length right_edge;
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|     Length bottom_edge;
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|     Length left_edge;
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|     Gfx::FloatRect resolved(Layout::Node const&, Gfx::FloatRect) const;
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|     bool operator==(EdgeRect const&) const = default;
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| };
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| 
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| namespace Filter {
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| 
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| struct Blur {
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|     Optional<Length> radius {};
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|     float resolved_radius(Layout::Node const&) const;
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|     bool operator==(Blur const&) const = default;
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| };
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| 
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| struct DropShadow {
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|     Length offset_x;
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|     Length offset_y;
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|     Optional<Length> radius {};
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|     Optional<Color> color {};
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|     struct Resolved {
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|         float offset_x;
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|         float offset_y;
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|         float radius;
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|         Color color;
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|     };
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|     Resolved resolved(Layout::Node const&) const;
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|     bool operator==(DropShadow const&) const = default;
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| };
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| 
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| struct HueRotate {
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|     struct Zero {
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|         bool operator==(Zero const&) const = default;
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|     };
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|     using AngleOrZero = Variant<Angle, Zero>;
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|     Optional<AngleOrZero> angle {};
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|     float angle_degrees() const;
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|     bool operator==(HueRotate const&) const = default;
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| };
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| 
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| struct Color {
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|     enum class Operation {
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|         Brightness,
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|         Contrast,
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|         Grayscale,
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|         Invert,
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|         Opacity,
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|         Saturate,
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|         Sepia
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|     } operation;
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|     Optional<NumberPercentage> amount {};
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|     float resolved_amount() const;
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|     bool operator==(Color const&) const = default;
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| };
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| 
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| };
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| 
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| using FilterFunction = Variant<Filter::Blur, Filter::DropShadow, Filter::HueRotate, Filter::Color>;
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| 
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| // FIXME: Find a better place for this helper.
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| inline Gfx::Painter::ScalingMode to_gfx_scaling_mode(CSS::ImageRendering css_value)
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| {
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|     switch (css_value) {
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|     case CSS::ImageRendering::Auto:
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|     case CSS::ImageRendering::HighQuality:
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|     case CSS::ImageRendering::Smooth:
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|         return Gfx::Painter::ScalingMode::BilinearBlend;
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|     case CSS::ImageRendering::CrispEdges:
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|         return Gfx::Painter::ScalingMode::NearestNeighbor;
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|     case CSS::ImageRendering::Pixelated:
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|         return Gfx::Painter::ScalingMode::SmoothPixels;
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|     }
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|     VERIFY_NOT_REACHED();
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| }
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| private:
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|     using NonnullRefPtr<T>::operator==;
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| };
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| private:
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|     using RefPtr<T>::operator==;
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| };
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| 
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| template<typename T>
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| using ValueComparingNonnullRefPtrVector = AK::NonnullPtrVector<ValueComparingNonnullRefPtr<T>>;
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| using StyleValueVector = ValueComparingNonnullRefPtrVector<StyleValue const>;
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| 
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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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| 
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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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|         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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|         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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|         ValueList
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|     };
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| 
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|     Type type() const { return m_type; }
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| 
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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_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_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_value_list() const { return type() == Type::ValueList; }
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| 
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|     bool is_builtin() const { return is_inherit() || is_initial() || is_unset(); }
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| 
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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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|     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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|     GridTrackSizeStyleValue 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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|     StyleValueList const& as_value_list() const;
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| 
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|     AbstractImageStyleValue& as_abstract_image() { return const_cast<AbstractImageStyleValue&>(const_cast<StyleValue const&>(*this).as_abstract_image()); }
 | |
|     AngleStyleValue& as_angle() { return const_cast<AngleStyleValue&>(const_cast<StyleValue const&>(*this).as_angle()); }
 | |
|     BackgroundStyleValue& as_background() { return const_cast<BackgroundStyleValue&>(const_cast<StyleValue const&>(*this).as_background()); }
 | |
|     BackgroundRepeatStyleValue& as_background_repeat() { return const_cast<BackgroundRepeatStyleValue&>(const_cast<StyleValue const&>(*this).as_background_repeat()); }
 | |
|     BackgroundSizeStyleValue& as_background_size() { return const_cast<BackgroundSizeStyleValue&>(const_cast<StyleValue const&>(*this).as_background_size()); }
 | |
|     BorderRadiusStyleValue& as_border_radius() { return const_cast<BorderRadiusStyleValue&>(const_cast<StyleValue const&>(*this).as_border_radius()); }
 | |
|     BorderRadiusShorthandStyleValue& as_border_radius_shorthand() { return const_cast<BorderRadiusShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_border_radius_shorthand()); }
 | |
|     BorderStyleValue& as_border() { return const_cast<BorderStyleValue&>(const_cast<StyleValue const&>(*this).as_border()); }
 | |
|     CalculatedStyleValue& as_calculated() { return const_cast<CalculatedStyleValue&>(const_cast<StyleValue const&>(*this).as_calculated()); }
 | |
|     ColorStyleValue& as_color() { return const_cast<ColorStyleValue&>(const_cast<StyleValue const&>(*this).as_color()); }
 | |
|     ConicGradientStyleValue& as_conic_gradient() { return const_cast<ConicGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_conic_gradient()); }
 | |
|     ContentStyleValue& as_content() { return const_cast<ContentStyleValue&>(const_cast<StyleValue const&>(*this).as_content()); }
 | |
|     FilterValueListStyleValue& as_filter_value_list() { return const_cast<FilterValueListStyleValue&>(const_cast<StyleValue const&>(*this).as_filter_value_list()); }
 | |
|     FlexFlowStyleValue& as_flex_flow() { return const_cast<FlexFlowStyleValue&>(const_cast<StyleValue const&>(*this).as_flex_flow()); }
 | |
|     FlexStyleValue& as_flex() { return const_cast<FlexStyleValue&>(const_cast<StyleValue const&>(*this).as_flex()); }
 | |
|     FontStyleValue& as_font() { return const_cast<FontStyleValue&>(const_cast<StyleValue const&>(*this).as_font()); }
 | |
|     FrequencyStyleValue& as_frequency() { return const_cast<FrequencyStyleValue&>(const_cast<StyleValue const&>(*this).as_frequency()); }
 | |
|     GridAreaShorthandStyleValue& as_grid_area_shorthand() { return const_cast<GridAreaShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_area_shorthand()); }
 | |
|     GridTemplateAreaStyleValue& as_grid_template_area() { return const_cast<GridTemplateAreaStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_template_area()); }
 | |
|     GridTrackPlacementShorthandStyleValue& as_grid_track_placement_shorthand() { return const_cast<GridTrackPlacementShorthandStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_placement_shorthand()); }
 | |
|     GridTrackPlacementStyleValue& as_grid_track_placement() { return const_cast<GridTrackPlacementStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_placement()); }
 | |
|     GridTrackSizeStyleValue& as_grid_track_size_list() { return const_cast<GridTrackSizeStyleValue&>(const_cast<StyleValue const&>(*this).as_grid_track_size_list()); }
 | |
|     IdentifierStyleValue& as_identifier() { return const_cast<IdentifierStyleValue&>(const_cast<StyleValue const&>(*this).as_identifier()); }
 | |
|     ImageStyleValue& as_image() { return const_cast<ImageStyleValue&>(const_cast<StyleValue const&>(*this).as_image()); }
 | |
|     InheritStyleValue& as_inherit() { return const_cast<InheritStyleValue&>(const_cast<StyleValue const&>(*this).as_inherit()); }
 | |
|     InitialStyleValue& as_initial() { return const_cast<InitialStyleValue&>(const_cast<StyleValue const&>(*this).as_initial()); }
 | |
|     LengthStyleValue& as_length() { return const_cast<LengthStyleValue&>(const_cast<StyleValue const&>(*this).as_length()); }
 | |
|     LinearGradientStyleValue& as_linear_gradient() { return const_cast<LinearGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_linear_gradient()); }
 | |
|     ListStyleStyleValue& as_list_style() { return const_cast<ListStyleStyleValue&>(const_cast<StyleValue const&>(*this).as_list_style()); }
 | |
|     NumericStyleValue& as_numeric() { return const_cast<NumericStyleValue&>(const_cast<StyleValue const&>(*this).as_numeric()); }
 | |
|     OverflowStyleValue& as_overflow() { return const_cast<OverflowStyleValue&>(const_cast<StyleValue const&>(*this).as_overflow()); }
 | |
|     PercentageStyleValue& as_percentage() { return const_cast<PercentageStyleValue&>(const_cast<StyleValue const&>(*this).as_percentage()); }
 | |
|     PositionStyleValue& as_position() { return const_cast<PositionStyleValue&>(const_cast<StyleValue const&>(*this).as_position()); }
 | |
|     RadialGradientStyleValue& as_radial_gradient() { return const_cast<RadialGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_radial_gradient()); }
 | |
|     RectStyleValue& as_rect() { return const_cast<RectStyleValue&>(const_cast<StyleValue const&>(*this).as_rect()); }
 | |
|     ResolutionStyleValue& as_resolution() { return const_cast<ResolutionStyleValue&>(const_cast<StyleValue const&>(*this).as_resolution()); }
 | |
|     ShadowStyleValue& as_shadow() { return const_cast<ShadowStyleValue&>(const_cast<StyleValue const&>(*this).as_shadow()); }
 | |
|     StringStyleValue& as_string() { return const_cast<StringStyleValue&>(const_cast<StyleValue const&>(*this).as_string()); }
 | |
|     TextDecorationStyleValue& as_text_decoration() { return const_cast<TextDecorationStyleValue&>(const_cast<StyleValue const&>(*this).as_text_decoration()); }
 | |
|     TimeStyleValue& as_time() { return const_cast<TimeStyleValue&>(const_cast<StyleValue const&>(*this).as_time()); }
 | |
|     TransformationStyleValue& as_transformation() { return const_cast<TransformationStyleValue&>(const_cast<StyleValue const&>(*this).as_transformation()); }
 | |
|     UnresolvedStyleValue& as_unresolved() { return const_cast<UnresolvedStyleValue&>(const_cast<StyleValue const&>(*this).as_unresolved()); }
 | |
|     UnsetStyleValue& as_unset() { return const_cast<UnsetStyleValue&>(const_cast<StyleValue const&>(*this).as_unset()); }
 | |
|     StyleValueList& as_value_list() { return const_cast<StyleValueList&>(const_cast<StyleValue const&>(*this).as_value_list()); }
 | |
| 
 | |
|     virtual bool has_auto() const { return false; }
 | |
|     virtual bool has_color() const { return false; }
 | |
|     virtual bool has_identifier() const { return false; }
 | |
|     virtual bool has_length() const { return false; }
 | |
|     virtual bool has_rect() const { return false; }
 | |
|     virtual bool has_number() const { return false; }
 | |
|     virtual bool has_integer() const { return false; }
 | |
| 
 | |
|     virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size) const;
 | |
| 
 | |
|     virtual Color to_color(Layout::NodeWithStyle const&) const { return {}; }
 | |
|     virtual EdgeRect to_rect() const { VERIFY_NOT_REACHED(); }
 | |
|     virtual CSS::ValueID to_identifier() const { return ValueID::Invalid; }
 | |
|     virtual Length to_length() const { VERIFY_NOT_REACHED(); }
 | |
|     virtual float to_number() const { return 0; }
 | |
|     virtual float to_integer() const { return 0; }
 | |
|     virtual ErrorOr<String> to_string() const = 0;
 | |
| 
 | |
|     virtual bool equals(StyleValue const& other) const = 0;
 | |
| 
 | |
|     bool operator==(StyleValue const& other) const
 | |
|     {
 | |
|         return this->equals(other);
 | |
|     }
 | |
| 
 | |
| protected:
 | |
|     explicit StyleValue(Type);
 | |
| 
 | |
| private:
 | |
|     Type m_type { Type::Invalid };
 | |
| };
 | |
| 
 | |
| template<typename T>
 | |
| struct StyleValueWithDefaultOperators : public StyleValue {
 | |
|     using StyleValue::StyleValue;
 | |
| 
 | |
|     virtual bool equals(StyleValue const& other) const override
 | |
|     {
 | |
|         if (type() != other.type())
 | |
|             return false;
 | |
|         auto const& typed_other = static_cast<T const&>(other);
 | |
|         return static_cast<T const&>(*this).properties_equal(typed_other);
 | |
|     }
 | |
| };
 | |
| 
 | |
| class AngleStyleValue : public StyleValueWithDefaultOperators<AngleStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<AngleStyleValue> create(Angle angle)
 | |
|     {
 | |
|         return adopt_ref(*new AngleStyleValue(move(angle)));
 | |
|     }
 | |
|     virtual ~AngleStyleValue() override { }
 | |
| 
 | |
|     Angle const& angle() const { return m_angle; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override { return m_angle.to_string(); }
 | |
| 
 | |
|     bool properties_equal(AngleStyleValue const& other) const { return m_angle == other.m_angle; }
 | |
| 
 | |
| private:
 | |
|     explicit AngleStyleValue(Angle angle)
 | |
|         : StyleValueWithDefaultOperators(Type::Angle)
 | |
|         , m_angle(move(angle))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Angle m_angle;
 | |
| };
 | |
| 
 | |
| class BackgroundStyleValue final : public StyleValueWithDefaultOperators<BackgroundStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<BackgroundStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> color,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> image,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> position,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> size,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> repeat,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> attachment,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> origin,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> clip)
 | |
|     {
 | |
|         return adopt_ref(*new BackgroundStyleValue(move(color), move(image), move(position), move(size), move(repeat), move(attachment), move(origin), move(clip)));
 | |
|     }
 | |
|     virtual ~BackgroundStyleValue() override = default;
 | |
| 
 | |
|     size_t layer_count() const { return m_properties.layer_count; }
 | |
| 
 | |
|     auto attachment() const { return m_properties.attachment; }
 | |
|     auto clip() const { return m_properties.clip; }
 | |
|     auto color() const { return m_properties.color; }
 | |
|     auto image() const { return m_properties.image; }
 | |
|     auto origin() const { return m_properties.origin; }
 | |
|     auto position() const { return m_properties.position; }
 | |
|     auto repeat() const { return m_properties.repeat; }
 | |
|     auto size() const { return m_properties.size; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(BackgroundStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     BackgroundStyleValue(
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> color,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> image,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> position,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> size,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> repeat,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> attachment,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> origin,
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> clip);
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> color;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> image;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> position;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> size;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> repeat;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> attachment;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> origin;
 | |
|         ValueComparingNonnullRefPtr<StyleValue const> clip;
 | |
|         size_t layer_count;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class BackgroundRepeatStyleValue final : public StyleValueWithDefaultOperators<BackgroundRepeatStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<BackgroundRepeatStyleValue> create(Repeat repeat_x, Repeat repeat_y)
 | |
|     {
 | |
|         return adopt_ref(*new BackgroundRepeatStyleValue(repeat_x, repeat_y));
 | |
|     }
 | |
|     virtual ~BackgroundRepeatStyleValue() override = default;
 | |
| 
 | |
|     Repeat repeat_x() const { return m_properties.repeat_x; }
 | |
|     Repeat repeat_y() const { return m_properties.repeat_y; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(BackgroundRepeatStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     BackgroundRepeatStyleValue(Repeat repeat_x, Repeat repeat_y)
 | |
|         : StyleValueWithDefaultOperators(Type::BackgroundRepeat)
 | |
|         , m_properties { .repeat_x = repeat_x, .repeat_y = repeat_y }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         Repeat repeat_x;
 | |
|         Repeat repeat_y;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| // NOTE: This is not used for identifier sizes, like `cover` and `contain`.
 | |
| class BackgroundSizeStyleValue final : public StyleValueWithDefaultOperators<BackgroundSizeStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<BackgroundSizeStyleValue> create(LengthPercentage size_x, LengthPercentage size_y)
 | |
|     {
 | |
|         return adopt_ref(*new BackgroundSizeStyleValue(size_x, size_y));
 | |
|     }
 | |
|     virtual ~BackgroundSizeStyleValue() override = default;
 | |
| 
 | |
|     LengthPercentage size_x() const { return m_properties.size_x; }
 | |
|     LengthPercentage size_y() const { return m_properties.size_y; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(BackgroundSizeStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     BackgroundSizeStyleValue(LengthPercentage size_x, LengthPercentage size_y)
 | |
|         : StyleValueWithDefaultOperators(Type::BackgroundSize)
 | |
|         , m_properties { .size_x = size_x, .size_y = size_y }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         LengthPercentage size_x;
 | |
|         LengthPercentage size_y;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class BorderStyleValue final : public StyleValueWithDefaultOperators<BorderStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<BorderStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_width,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_style,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_color)
 | |
|     {
 | |
|         return adopt_ref(*new BorderStyleValue(move(border_width), move(border_style), move(border_color)));
 | |
|     }
 | |
|     virtual ~BorderStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> border_width() const { return m_properties.border_width; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> border_style() const { return m_properties.border_style; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> border_color() const { return m_properties.border_color; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(BorderStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     BorderStyleValue(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_width,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_style,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_color)
 | |
|         : StyleValueWithDefaultOperators(Type::Border)
 | |
|         , m_properties { .border_width = move(border_width), .border_style = move(border_style), .border_color = move(border_color) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_width;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_style;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> border_color;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class BorderRadiusStyleValue final : public StyleValueWithDefaultOperators<BorderRadiusStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<BorderRadiusStyleValue> create(LengthPercentage const& horizontal_radius, LengthPercentage const& vertical_radius)
 | |
|     {
 | |
|         return adopt_ref(*new BorderRadiusStyleValue(horizontal_radius, vertical_radius));
 | |
|     }
 | |
|     virtual ~BorderRadiusStyleValue() override = default;
 | |
| 
 | |
|     LengthPercentage const& horizontal_radius() const { return m_properties.horizontal_radius; }
 | |
|     LengthPercentage const& vertical_radius() const { return m_properties.vertical_radius; }
 | |
|     bool is_elliptical() const { return m_properties.is_elliptical; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(BorderRadiusStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     BorderRadiusStyleValue(LengthPercentage const& horizontal_radius, LengthPercentage const& vertical_radius)
 | |
|         : StyleValueWithDefaultOperators(Type::BorderRadius)
 | |
|         , m_properties { .is_elliptical = horizontal_radius != vertical_radius, .horizontal_radius = horizontal_radius, .vertical_radius = vertical_radius }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size) const override;
 | |
| 
 | |
|     struct Properties {
 | |
|         bool is_elliptical;
 | |
|         LengthPercentage horizontal_radius;
 | |
|         LengthPercentage vertical_radius;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class BorderRadiusShorthandStyleValue final : public StyleValueWithDefaultOperators<BorderRadiusShorthandStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<BorderRadiusShorthandStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> top_left,
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> top_right,
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> bottom_right,
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> bottom_left)
 | |
|     {
 | |
|         return adopt_ref(*new BorderRadiusShorthandStyleValue(move(top_left), move(top_right), move(bottom_right), move(bottom_left)));
 | |
|     }
 | |
|     virtual ~BorderRadiusShorthandStyleValue() override = default;
 | |
| 
 | |
|     auto top_left() const { return m_properties.top_left; }
 | |
|     auto top_right() const { return m_properties.top_right; }
 | |
|     auto bottom_right() const { return m_properties.bottom_right; }
 | |
|     auto bottom_left() const { return m_properties.bottom_left; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(BorderRadiusShorthandStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     BorderRadiusShorthandStyleValue(
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> top_left,
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> top_right,
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> bottom_right,
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> bottom_left)
 | |
|         : StyleValueWithDefaultOperators(Type::BorderRadiusShorthand)
 | |
|         , m_properties { .top_left = move(top_left), .top_right = move(top_right), .bottom_right = move(bottom_right), .bottom_left = move(bottom_left) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> top_left;
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> top_right;
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> bottom_right;
 | |
|         ValueComparingNonnullRefPtr<BorderRadiusStyleValue const> bottom_left;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class CalculatedStyleValue : public StyleValue {
 | |
| public:
 | |
|     enum class ResolvedType {
 | |
|         Angle,
 | |
|         Frequency,
 | |
|         Integer,
 | |
|         Length,
 | |
|         Number,
 | |
|         Percentage,
 | |
|         Time,
 | |
|     };
 | |
| 
 | |
|     enum class SumOperation {
 | |
|         Add,
 | |
|         Subtract,
 | |
|     };
 | |
|     enum class ProductOperation {
 | |
|         Multiply,
 | |
|         Divide,
 | |
|     };
 | |
| 
 | |
|     using PercentageBasis = Variant<Empty, Angle, Frequency, Length, Time>;
 | |
| 
 | |
|     class CalculationResult {
 | |
|     public:
 | |
|         using Value = Variant<Number, Angle, Frequency, Length, Percentage, Time>;
 | |
|         CalculationResult(Value value)
 | |
|             : m_value(move(value))
 | |
|         {
 | |
|         }
 | |
|         void add(CalculationResult const& other, Layout::Node const*, PercentageBasis const& percentage_basis);
 | |
|         void subtract(CalculationResult const& other, Layout::Node const*, PercentageBasis const& percentage_basis);
 | |
|         void multiply_by(CalculationResult const& other, Layout::Node const*);
 | |
|         void divide_by(CalculationResult const& other, Layout::Node const*);
 | |
| 
 | |
|         Value const& value() const { return m_value; }
 | |
| 
 | |
|     private:
 | |
|         void add_or_subtract_internal(SumOperation op, CalculationResult const& other, Layout::Node const*, PercentageBasis const& percentage_basis);
 | |
|         Value m_value;
 | |
|     };
 | |
| 
 | |
|     struct CalcSum;
 | |
|     struct CalcSumPartWithOperator;
 | |
|     struct CalcProduct;
 | |
|     struct CalcProductPartWithOperator;
 | |
|     struct CalcNumberSum;
 | |
|     struct CalcNumberSumPartWithOperator;
 | |
|     struct CalcNumberProduct;
 | |
|     struct CalcNumberProductPartWithOperator;
 | |
| 
 | |
|     struct CalcNumberValue {
 | |
|         Variant<Number, NonnullOwnPtr<CalcNumberSum>> value;
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|     };
 | |
| 
 | |
|     struct CalcValue {
 | |
|         Variant<Number, Angle, Frequency, Length, Percentage, Time, NonnullOwnPtr<CalcSum>> value;
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|         bool contains_percentage() const;
 | |
|     };
 | |
| 
 | |
|     // This represents that: https://www.w3.org/TR/css-values-3/#calc-syntax
 | |
|     struct CalcSum {
 | |
|         CalcSum(NonnullOwnPtr<CalcProduct> first_calc_product, NonnullOwnPtrVector<CalcSumPartWithOperator> additional)
 | |
|             : first_calc_product(move(first_calc_product))
 | |
|             , zero_or_more_additional_calc_products(move(additional)) {};
 | |
| 
 | |
|         NonnullOwnPtr<CalcProduct> first_calc_product;
 | |
|         NonnullOwnPtrVector<CalcSumPartWithOperator> zero_or_more_additional_calc_products;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
| 
 | |
|         bool contains_percentage() const;
 | |
|     };
 | |
| 
 | |
|     struct CalcNumberSum {
 | |
|         CalcNumberSum(NonnullOwnPtr<CalcNumberProduct> first_calc_number_product, NonnullOwnPtrVector<CalcNumberSumPartWithOperator> additional)
 | |
|             : first_calc_number_product(move(first_calc_number_product))
 | |
|             , zero_or_more_additional_calc_number_products(move(additional)) {};
 | |
| 
 | |
|         NonnullOwnPtr<CalcNumberProduct> first_calc_number_product;
 | |
|         NonnullOwnPtrVector<CalcNumberSumPartWithOperator> zero_or_more_additional_calc_number_products;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|     };
 | |
| 
 | |
|     struct CalcProduct {
 | |
|         CalcValue first_calc_value;
 | |
|         NonnullOwnPtrVector<CalcProductPartWithOperator> zero_or_more_additional_calc_values;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|         bool contains_percentage() const;
 | |
|     };
 | |
| 
 | |
|     struct CalcSumPartWithOperator {
 | |
|         CalcSumPartWithOperator(SumOperation op, NonnullOwnPtr<CalcProduct> calc_product)
 | |
|             : op(op)
 | |
|             , value(move(calc_product)) {};
 | |
| 
 | |
|         SumOperation op;
 | |
|         NonnullOwnPtr<CalcProduct> value;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|         bool contains_percentage() const;
 | |
|     };
 | |
| 
 | |
|     struct CalcProductPartWithOperator {
 | |
|         ProductOperation op;
 | |
|         Variant<CalcValue, CalcNumberValue> value;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
| 
 | |
|         bool contains_percentage() const;
 | |
|     };
 | |
| 
 | |
|     struct CalcNumberProduct {
 | |
|         CalcNumberValue first_calc_number_value;
 | |
|         NonnullOwnPtrVector<CalcNumberProductPartWithOperator> zero_or_more_additional_calc_number_values;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|     };
 | |
| 
 | |
|     struct CalcNumberProductPartWithOperator {
 | |
|         ProductOperation op;
 | |
|         CalcNumberValue value;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|     };
 | |
| 
 | |
|     struct CalcNumberSumPartWithOperator {
 | |
|         CalcNumberSumPartWithOperator(SumOperation op, NonnullOwnPtr<CalcNumberProduct> calc_number_product)
 | |
|             : op(op)
 | |
|             , value(move(calc_number_product)) {};
 | |
| 
 | |
|         SumOperation op;
 | |
|         NonnullOwnPtr<CalcNumberProduct> value;
 | |
| 
 | |
|         ErrorOr<String> to_string() const;
 | |
|         Optional<ResolvedType> resolved_type() const;
 | |
|         CalculationResult resolve(Layout::Node const*, PercentageBasis const& percentage_basis) const;
 | |
|     };
 | |
| 
 | |
|     static ValueComparingNonnullRefPtr<CalculatedStyleValue> create(NonnullOwnPtr<CalcSum> calc_sum, ResolvedType resolved_type)
 | |
|     {
 | |
|         return adopt_ref(*new CalculatedStyleValue(move(calc_sum), resolved_type));
 | |
|     }
 | |
| 
 | |
|     ErrorOr<String> to_string() const override;
 | |
|     virtual bool equals(StyleValue const& other) const override;
 | |
|     ResolvedType resolved_type() const { return m_resolved_type; }
 | |
|     NonnullOwnPtr<CalcSum> const& expression() const { return m_expression; }
 | |
| 
 | |
|     bool resolves_to_angle() const { return m_resolved_type == ResolvedType::Angle; }
 | |
|     Optional<Angle> resolve_angle() const;
 | |
|     Optional<Angle> resolve_angle_percentage(Angle const& percentage_basis) const;
 | |
| 
 | |
|     bool resolves_to_frequency() const { return m_resolved_type == ResolvedType::Frequency; }
 | |
|     Optional<Frequency> resolve_frequency() const;
 | |
|     Optional<Frequency> resolve_frequency_percentage(Frequency const& percentage_basis) const;
 | |
| 
 | |
|     bool resolves_to_length() const { return m_resolved_type == ResolvedType::Length; }
 | |
|     Optional<Length> resolve_length(Layout::Node const& layout_node) const;
 | |
|     Optional<Length> resolve_length_percentage(Layout::Node const&, Length const& percentage_basis) const;
 | |
| 
 | |
|     bool resolves_to_percentage() const { return m_resolved_type == ResolvedType::Percentage; }
 | |
|     Optional<Percentage> resolve_percentage() const;
 | |
| 
 | |
|     bool resolves_to_time() const { return m_resolved_type == ResolvedType::Time; }
 | |
|     Optional<Time> resolve_time() const;
 | |
|     Optional<Time> resolve_time_percentage(Time const& percentage_basis) const;
 | |
| 
 | |
|     bool resolves_to_integer() const { return m_resolved_type == ResolvedType::Integer; }
 | |
|     bool resolves_to_number() const { return resolves_to_integer() || m_resolved_type == ResolvedType::Number; }
 | |
|     Optional<float> resolve_number();
 | |
|     Optional<i64> resolve_integer();
 | |
| 
 | |
|     bool contains_percentage() const;
 | |
| 
 | |
| private:
 | |
|     explicit CalculatedStyleValue(NonnullOwnPtr<CalcSum> calc_sum, ResolvedType resolved_type)
 | |
|         : StyleValue(Type::Calculated)
 | |
|         , m_resolved_type(resolved_type)
 | |
|         , m_expression(move(calc_sum))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     ResolvedType m_resolved_type;
 | |
|     NonnullOwnPtr<CalcSum> m_expression;
 | |
| };
 | |
| 
 | |
| class ColorStyleValue : public StyleValueWithDefaultOperators<ColorStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ColorStyleValue> create(Color color);
 | |
|     virtual ~ColorStyleValue() override = default;
 | |
| 
 | |
|     Color color() const { return m_color; }
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
|     virtual bool has_color() const override { return true; }
 | |
|     virtual Color to_color(Layout::NodeWithStyle const&) const override { return m_color; }
 | |
| 
 | |
|     bool properties_equal(ColorStyleValue const& other) const { return m_color == other.m_color; };
 | |
| 
 | |
| private:
 | |
|     explicit ColorStyleValue(Color color)
 | |
|         : StyleValueWithDefaultOperators(Type::Color)
 | |
|         , m_color(color)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Color m_color;
 | |
| };
 | |
| 
 | |
| class ContentStyleValue final : public StyleValueWithDefaultOperators<ContentStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ContentStyleValue> create(ValueComparingNonnullRefPtr<StyleValueList> content, ValueComparingRefPtr<StyleValueList> alt_text)
 | |
|     {
 | |
|         return adopt_ref(*new ContentStyleValue(move(content), move(alt_text)));
 | |
|     }
 | |
| 
 | |
|     StyleValueList const& content() const { return *m_properties.content; }
 | |
|     bool has_alt_text() const { return !m_properties.alt_text.is_null(); }
 | |
|     StyleValueList const* alt_text() const { return m_properties.alt_text; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(ContentStyleValue const& other) const { return m_properties == other.m_properties; };
 | |
| 
 | |
| private:
 | |
|     ContentStyleValue(ValueComparingNonnullRefPtr<StyleValueList> content, ValueComparingRefPtr<StyleValueList> alt_text)
 | |
|         : StyleValueWithDefaultOperators(Type::Content)
 | |
|         , m_properties { .content = move(content), .alt_text = move(alt_text) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValueList> content;
 | |
|         ValueComparingRefPtr<StyleValueList> alt_text;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class FilterValueListStyleValue final : public StyleValueWithDefaultOperators<FilterValueListStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<FilterValueListStyleValue> create(
 | |
|         Vector<FilterFunction> filter_value_list)
 | |
|     {
 | |
|         VERIFY(filter_value_list.size() >= 1);
 | |
|         return adopt_ref(*new FilterValueListStyleValue(move(filter_value_list)));
 | |
|     }
 | |
| 
 | |
|     Vector<FilterFunction> const& filter_value_list() const { return m_filter_value_list; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     virtual ~FilterValueListStyleValue() override = default;
 | |
| 
 | |
|     bool properties_equal(FilterValueListStyleValue const& other) const { return m_filter_value_list == other.m_filter_value_list; };
 | |
| 
 | |
| private:
 | |
|     FilterValueListStyleValue(Vector<FilterFunction> filter_value_list)
 | |
|         : StyleValueWithDefaultOperators(Type::FilterValueList)
 | |
|         , m_filter_value_list(move(filter_value_list))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     // FIXME: No support for SVG filters yet
 | |
|     Vector<FilterFunction> m_filter_value_list;
 | |
| };
 | |
| 
 | |
| class FlexStyleValue final : public StyleValueWithDefaultOperators<FlexStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<FlexStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> grow,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> shrink,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> basis)
 | |
|     {
 | |
|         return adopt_ref(*new FlexStyleValue(move(grow), move(shrink), move(basis)));
 | |
|     }
 | |
|     virtual ~FlexStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> grow() const { return m_properties.grow; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> shrink() const { return m_properties.shrink; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> basis() const { return m_properties.basis; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(FlexStyleValue const& other) const { return m_properties == other.m_properties; };
 | |
| 
 | |
| private:
 | |
|     FlexStyleValue(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> grow,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> shrink,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> basis)
 | |
|         : StyleValueWithDefaultOperators(Type::Flex)
 | |
|         , m_properties { .grow = move(grow), .shrink = move(shrink), .basis = move(basis) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> grow;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> shrink;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> basis;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class FlexFlowStyleValue final : public StyleValueWithDefaultOperators<FlexFlowStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<FlexFlowStyleValue> create(ValueComparingNonnullRefPtr<StyleValue> flex_direction, ValueComparingNonnullRefPtr<StyleValue> flex_wrap)
 | |
|     {
 | |
|         return adopt_ref(*new FlexFlowStyleValue(move(flex_direction), move(flex_wrap)));
 | |
|     }
 | |
|     virtual ~FlexFlowStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> flex_direction() const { return m_properties.flex_direction; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> flex_wrap() const { return m_properties.flex_wrap; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(FlexFlowStyleValue const& other) const { return m_properties == other.m_properties; };
 | |
| 
 | |
| private:
 | |
|     FlexFlowStyleValue(ValueComparingNonnullRefPtr<StyleValue> flex_direction, ValueComparingNonnullRefPtr<StyleValue> flex_wrap)
 | |
|         : StyleValueWithDefaultOperators(Type::FlexFlow)
 | |
|         , m_properties { .flex_direction = move(flex_direction), .flex_wrap = move(flex_wrap) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> flex_direction;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> flex_wrap;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class FontStyleValue final : public StyleValueWithDefaultOperators<FontStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<FontStyleValue> create(ValueComparingNonnullRefPtr<StyleValue> font_stretch, ValueComparingNonnullRefPtr<StyleValue> font_style, ValueComparingNonnullRefPtr<StyleValue> font_weight, ValueComparingNonnullRefPtr<StyleValue> font_size, ValueComparingNonnullRefPtr<StyleValue> line_height, ValueComparingNonnullRefPtr<StyleValue> font_families)
 | |
|     {
 | |
|         return adopt_ref(*new FontStyleValue(move(font_stretch), move(font_style), move(font_weight), move(font_size), move(line_height), move(font_families)));
 | |
|     }
 | |
|     virtual ~FontStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> font_stretch() const { return m_properties.font_stretch; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> font_style() const { return m_properties.font_style; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> font_weight() const { return m_properties.font_weight; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> font_size() const { return m_properties.font_size; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> line_height() const { return m_properties.line_height; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> font_families() const { return m_properties.font_families; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(FontStyleValue const& other) const { return m_properties == other.m_properties; };
 | |
| 
 | |
| private:
 | |
|     FontStyleValue(ValueComparingNonnullRefPtr<StyleValue> font_stretch, ValueComparingNonnullRefPtr<StyleValue> font_style, ValueComparingNonnullRefPtr<StyleValue> font_weight, ValueComparingNonnullRefPtr<StyleValue> font_size, ValueComparingNonnullRefPtr<StyleValue> line_height, ValueComparingNonnullRefPtr<StyleValue> font_families)
 | |
|         : StyleValueWithDefaultOperators(Type::Font)
 | |
|         , m_properties { .font_stretch = move(font_stretch), .font_style = move(font_style), .font_weight = move(font_weight), .font_size = move(font_size), .line_height = move(line_height), .font_families = move(font_families) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> font_stretch;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> font_style;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> font_weight;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> font_size;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> line_height;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> font_families;
 | |
|         // FIXME: Implement font-variant.
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class FrequencyStyleValue : public StyleValueWithDefaultOperators<FrequencyStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<FrequencyStyleValue> create(Frequency frequency)
 | |
|     {
 | |
|         return adopt_ref(*new FrequencyStyleValue(move(frequency)));
 | |
|     }
 | |
|     virtual ~FrequencyStyleValue() override { }
 | |
| 
 | |
|     Frequency const& frequency() const { return m_frequency; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override { return m_frequency.to_string(); }
 | |
| 
 | |
|     bool properties_equal(FrequencyStyleValue const& other) const { return m_frequency == other.m_frequency; };
 | |
| 
 | |
| private:
 | |
|     explicit FrequencyStyleValue(Frequency frequency)
 | |
|         : StyleValueWithDefaultOperators(Type::Frequency)
 | |
|         , m_frequency(move(frequency))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Frequency m_frequency;
 | |
| };
 | |
| 
 | |
| class GridTemplateAreaStyleValue final : public StyleValueWithDefaultOperators<GridTemplateAreaStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<GridTemplateAreaStyleValue> create(Vector<Vector<String>> grid_template_area);
 | |
|     virtual ~GridTemplateAreaStyleValue() override = default;
 | |
| 
 | |
|     Vector<Vector<String>> const& grid_template_area() const { return m_grid_template_area; }
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(GridTemplateAreaStyleValue const& other) const { return m_grid_template_area == other.m_grid_template_area; };
 | |
| 
 | |
| private:
 | |
|     explicit GridTemplateAreaStyleValue(Vector<Vector<String>> grid_template_area)
 | |
|         : StyleValueWithDefaultOperators(Type::GridTemplateArea)
 | |
|         , m_grid_template_area(grid_template_area)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Vector<Vector<String>> m_grid_template_area;
 | |
| };
 | |
| 
 | |
| class GridTrackPlacementStyleValue final : public StyleValueWithDefaultOperators<GridTrackPlacementStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue> create(CSS::GridTrackPlacement grid_track_placement);
 | |
|     virtual ~GridTrackPlacementStyleValue() override = default;
 | |
| 
 | |
|     CSS::GridTrackPlacement const& grid_track_placement() const { return m_grid_track_placement; }
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(GridTrackPlacementStyleValue const& other) const { return m_grid_track_placement == other.m_grid_track_placement; };
 | |
| 
 | |
| private:
 | |
|     explicit GridTrackPlacementStyleValue(CSS::GridTrackPlacement grid_track_placement)
 | |
|         : StyleValueWithDefaultOperators(Type::GridTrackPlacement)
 | |
|         , m_grid_track_placement(grid_track_placement)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     CSS::GridTrackPlacement m_grid_track_placement;
 | |
| };
 | |
| 
 | |
| class GridTrackPlacementShorthandStyleValue final : public StyleValueWithDefaultOperators<GridTrackPlacementShorthandStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<GridTrackPlacementShorthandStyleValue> create(ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> start, ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> end)
 | |
|     {
 | |
|         return adopt_ref(*new GridTrackPlacementShorthandStyleValue(move(start), move(end)));
 | |
|     }
 | |
|     static ValueComparingNonnullRefPtr<GridTrackPlacementShorthandStyleValue> create(GridTrackPlacement start)
 | |
|     {
 | |
|         return adopt_ref(*new GridTrackPlacementShorthandStyleValue(GridTrackPlacementStyleValue::create(start), GridTrackPlacementStyleValue::create(GridTrackPlacement::make_auto())));
 | |
|     }
 | |
|     virtual ~GridTrackPlacementShorthandStyleValue() override = default;
 | |
| 
 | |
|     auto start() const { return m_properties.start; }
 | |
|     auto end() const { return m_properties.end; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(GridTrackPlacementShorthandStyleValue const& other) const { return m_properties == other.m_properties; };
 | |
| 
 | |
| private:
 | |
|     GridTrackPlacementShorthandStyleValue(ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> start, ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> end)
 | |
|         : StyleValueWithDefaultOperators(Type::GridTrackPlacementShorthand)
 | |
|         , m_properties { .start = move(start), .end = move(end) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> start;
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> end;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class GridAreaShorthandStyleValue final : public StyleValueWithDefaultOperators<GridAreaShorthandStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<GridAreaShorthandStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_start,
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_start,
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_end,
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_end)
 | |
|     {
 | |
|         return adopt_ref(*new GridAreaShorthandStyleValue(row_start, column_start, row_end, column_end));
 | |
|     }
 | |
|     static ValueComparingNonnullRefPtr<GridAreaShorthandStyleValue> create(GridTrackPlacement row_start, GridTrackPlacement column_start, GridTrackPlacement row_end, GridTrackPlacement column_end)
 | |
|     {
 | |
|         return adopt_ref(*new GridAreaShorthandStyleValue(GridTrackPlacementStyleValue::create(row_start), GridTrackPlacementStyleValue::create(column_start), GridTrackPlacementStyleValue::create(row_end), GridTrackPlacementStyleValue::create(column_end)));
 | |
|     }
 | |
|     virtual ~GridAreaShorthandStyleValue() override = default;
 | |
| 
 | |
|     auto row_start() const { return m_properties.row_start; }
 | |
|     auto column_start() const { return m_properties.column_start; }
 | |
|     auto row_end() const { return m_properties.row_end; }
 | |
|     auto column_end() const { return m_properties.column_end; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(GridAreaShorthandStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     GridAreaShorthandStyleValue(ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_start, ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_start, ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_end, ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_end)
 | |
|         : StyleValueWithDefaultOperators(Type::GridAreaShorthand)
 | |
|         , m_properties { .row_start = move(row_start), .column_start = move(column_start), .row_end = move(row_end), .column_end = move(column_end) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_start;
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_start;
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> row_end;
 | |
|         ValueComparingNonnullRefPtr<GridTrackPlacementStyleValue const> column_end;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class GridTrackSizeStyleValue final : public StyleValueWithDefaultOperators<GridTrackSizeStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<GridTrackSizeStyleValue> create(CSS::GridTrackSizeList grid_track_size_list);
 | |
|     virtual ~GridTrackSizeStyleValue() override = default;
 | |
| 
 | |
|     static ValueComparingNonnullRefPtr<GridTrackSizeStyleValue> make_auto();
 | |
| 
 | |
|     CSS::GridTrackSizeList grid_track_size_list() const { return m_grid_track_size_list; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(GridTrackSizeStyleValue const& other) const { return m_grid_track_size_list == other.m_grid_track_size_list; }
 | |
| 
 | |
| private:
 | |
|     explicit GridTrackSizeStyleValue(CSS::GridTrackSizeList grid_track_size_list)
 | |
|         : StyleValueWithDefaultOperators(Type::GridTrackSizeList)
 | |
|         , m_grid_track_size_list(grid_track_size_list)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     CSS::GridTrackSizeList m_grid_track_size_list;
 | |
| };
 | |
| 
 | |
| class IdentifierStyleValue final : public StyleValueWithDefaultOperators<IdentifierStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<IdentifierStyleValue> create(CSS::ValueID id)
 | |
|     {
 | |
|         return adopt_ref(*new IdentifierStyleValue(id));
 | |
|     }
 | |
|     virtual ~IdentifierStyleValue() override = default;
 | |
| 
 | |
|     CSS::ValueID id() const { return m_id; }
 | |
| 
 | |
|     virtual bool has_auto() const override { return m_id == ValueID::Auto; }
 | |
|     virtual bool has_identifier() const override { return true; }
 | |
|     virtual CSS::ValueID to_identifier() const override { return m_id; }
 | |
|     virtual bool has_color() const override;
 | |
|     virtual Color to_color(Layout::NodeWithStyle const& node) const override;
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(IdentifierStyleValue const& other) const { return m_id == other.m_id; }
 | |
| 
 | |
| private:
 | |
|     explicit IdentifierStyleValue(CSS::ValueID id)
 | |
|         : StyleValueWithDefaultOperators(Type::Identifier)
 | |
|         , m_id(id)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     CSS::ValueID m_id { CSS::ValueID::Invalid };
 | |
| };
 | |
| 
 | |
| class AbstractImageStyleValue : public StyleValue {
 | |
| public:
 | |
|     using StyleValue::StyleValue;
 | |
| 
 | |
|     virtual Optional<CSSPixels> natural_width() const { return {}; }
 | |
|     virtual Optional<CSSPixels> natural_height() const { return {}; }
 | |
| 
 | |
|     virtual void load_any_resources(DOM::Document&) {};
 | |
|     virtual void resolve_for_size(Layout::Node const&, CSSPixelSize) const {};
 | |
| 
 | |
|     virtual bool is_paintable() const = 0;
 | |
|     virtual void paint(PaintContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering image_rendering) const = 0;
 | |
| };
 | |
| 
 | |
| class ImageStyleValue final
 | |
|     : public AbstractImageStyleValue
 | |
|     , public ImageResourceClient {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ImageStyleValue> create(AK::URL const& url) { return adopt_ref(*new ImageStyleValue(url)); }
 | |
|     virtual ~ImageStyleValue() override = default;
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
|     virtual bool equals(StyleValue const& other) const override;
 | |
| 
 | |
|     virtual void load_any_resources(DOM::Document&) override;
 | |
| 
 | |
|     Optional<CSSPixels> natural_width() const override;
 | |
|     Optional<CSSPixels> natural_height() const override;
 | |
| 
 | |
|     bool is_paintable() const override { return bitmap(0) != nullptr; }
 | |
|     void paint(PaintContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering image_rendering) const override;
 | |
| 
 | |
|     Function<void()> on_animate;
 | |
| 
 | |
| private:
 | |
|     ImageStyleValue(AK::URL const&);
 | |
| 
 | |
|     // ^ResourceClient
 | |
|     virtual void resource_did_load() override;
 | |
| 
 | |
|     void animate();
 | |
|     Gfx::Bitmap const* bitmap(size_t index) const;
 | |
| 
 | |
|     AK::URL m_url;
 | |
|     WeakPtr<DOM::Document> m_document;
 | |
| 
 | |
|     size_t m_current_frame_index { 0 };
 | |
|     size_t m_loops_completed { 0 };
 | |
|     RefPtr<Platform::Timer> m_timer;
 | |
| };
 | |
| 
 | |
| enum class GradientRepeating {
 | |
|     Yes,
 | |
|     No
 | |
| };
 | |
| 
 | |
| class RadialGradientStyleValue final : public AbstractImageStyleValue {
 | |
| public:
 | |
|     enum class EndingShape {
 | |
|         Circle,
 | |
|         Ellipse
 | |
|     };
 | |
| 
 | |
|     enum class Extent {
 | |
|         ClosestCorner,
 | |
|         ClosestSide,
 | |
|         FarthestCorner,
 | |
|         FarthestSide
 | |
|     };
 | |
| 
 | |
|     struct CircleSize {
 | |
|         Length radius;
 | |
|         bool operator==(CircleSize const&) const = default;
 | |
|     };
 | |
| 
 | |
|     struct EllipseSize {
 | |
|         LengthPercentage radius_a;
 | |
|         LengthPercentage radius_b;
 | |
|         bool operator==(EllipseSize const&) const = default;
 | |
|     };
 | |
| 
 | |
|     using Size = Variant<Extent, CircleSize, EllipseSize>;
 | |
| 
 | |
|     static ValueComparingNonnullRefPtr<RadialGradientStyleValue> create(EndingShape ending_shape, Size size, PositionValue position, Vector<LinearColorStopListElement> color_stop_list, GradientRepeating repeating)
 | |
|     {
 | |
|         VERIFY(color_stop_list.size() >= 2);
 | |
|         return adopt_ref(*new RadialGradientStyleValue(ending_shape, size, position, move(color_stop_list), repeating));
 | |
|     }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     void paint(PaintContext&, DevicePixelRect const& dest_rect, CSS::ImageRendering) const override;
 | |
| 
 | |
|     virtual bool equals(StyleValue const& other) const override;
 | |
| 
 | |
|     Vector<LinearColorStopListElement> const& color_stop_list() const
 | |
|     {
 | |
|         return m_properties.color_stop_list;
 | |
|     }
 | |
| 
 | |
|     bool is_paintable() const override { return true; }
 | |
| 
 | |
|     void resolve_for_size(Layout::Node const&, CSSPixelSize) const override;
 | |
| 
 | |
|     Gfx::FloatSize resolve_size(Layout::Node const&, Gfx::FloatPoint, Gfx::FloatRect const&) const;
 | |
| 
 | |
|     bool is_repeating() const { return m_properties.repeating == GradientRepeating::Yes; }
 | |
| 
 | |
|     virtual ~RadialGradientStyleValue() override = default;
 | |
| 
 | |
| private:
 | |
|     RadialGradientStyleValue(EndingShape ending_shape, Size size, PositionValue position, Vector<LinearColorStopListElement> color_stop_list, GradientRepeating repeating)
 | |
|         : AbstractImageStyleValue(Type::RadialGradient)
 | |
|         , m_properties { .ending_shape = ending_shape, .size = size, .position = position, .color_stop_list = move(color_stop_list), .repeating = repeating }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         EndingShape ending_shape;
 | |
|         Size size;
 | |
|         PositionValue position;
 | |
|         Vector<LinearColorStopListElement> color_stop_list;
 | |
|         GradientRepeating repeating;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| 
 | |
|     struct ResolvedData {
 | |
|         Painting::RadialGradientData data;
 | |
|         Gfx::FloatSize gradient_size;
 | |
|         Gfx::FloatPoint center;
 | |
|     };
 | |
| 
 | |
|     mutable Optional<ResolvedData> m_resolved;
 | |
| };
 | |
| 
 | |
| class ConicGradientStyleValue final : public AbstractImageStyleValue {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ConicGradientStyleValue> create(Angle from_angle, PositionValue position, Vector<AngularColorStopListElement> color_stop_list, GradientRepeating repeating)
 | |
|     {
 | |
|         VERIFY(color_stop_list.size() >= 2);
 | |
|         return adopt_ref(*new ConicGradientStyleValue(from_angle, position, move(color_stop_list), repeating));
 | |
|     }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     void paint(PaintContext&, DevicePixelRect const& dest_rect, CSS::ImageRendering) const override;
 | |
| 
 | |
|     virtual bool equals(StyleValue const& other) const override;
 | |
| 
 | |
|     Vector<AngularColorStopListElement> const& color_stop_list() const
 | |
|     {
 | |
|         return m_properties.color_stop_list;
 | |
|     }
 | |
| 
 | |
|     float angle_degrees() const;
 | |
| 
 | |
|     bool is_paintable() const override { return true; }
 | |
| 
 | |
|     void resolve_for_size(Layout::Node const&, CSSPixelSize) const override;
 | |
| 
 | |
|     virtual ~ConicGradientStyleValue() override = default;
 | |
| 
 | |
|     bool is_repeating() const { return m_properties.repeating == GradientRepeating::Yes; }
 | |
| 
 | |
| private:
 | |
|     ConicGradientStyleValue(Angle from_angle, PositionValue position, Vector<AngularColorStopListElement> color_stop_list, GradientRepeating repeating)
 | |
|         : AbstractImageStyleValue(Type::ConicGradient)
 | |
|         , m_properties { .from_angle = from_angle, .position = position, .color_stop_list = move(color_stop_list), .repeating = repeating }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         // FIXME: Support <color-interpolation-method>
 | |
|         Angle from_angle;
 | |
|         PositionValue position;
 | |
|         Vector<AngularColorStopListElement> color_stop_list;
 | |
|         GradientRepeating repeating;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| 
 | |
|     struct ResolvedData {
 | |
|         Painting::ConicGradientData data;
 | |
|         CSSPixelPoint position;
 | |
|     };
 | |
| 
 | |
|     mutable Optional<ResolvedData> m_resolved;
 | |
| };
 | |
| 
 | |
| class LinearGradientStyleValue final : public AbstractImageStyleValue {
 | |
| public:
 | |
|     using GradientDirection = Variant<Angle, SideOrCorner>;
 | |
| 
 | |
|     enum class GradientType {
 | |
|         Standard,
 | |
|         WebKit
 | |
|     };
 | |
| 
 | |
|     static ValueComparingNonnullRefPtr<LinearGradientStyleValue> create(GradientDirection direction, Vector<LinearColorStopListElement> color_stop_list, GradientType type, GradientRepeating repeating)
 | |
|     {
 | |
|         VERIFY(color_stop_list.size() >= 2);
 | |
|         return adopt_ref(*new LinearGradientStyleValue(direction, move(color_stop_list), type, repeating));
 | |
|     }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
|     virtual ~LinearGradientStyleValue() override = default;
 | |
|     virtual bool equals(StyleValue const& other) const override;
 | |
| 
 | |
|     Vector<LinearColorStopListElement> const& color_stop_list() const
 | |
|     {
 | |
|         return m_properties.color_stop_list;
 | |
|     }
 | |
| 
 | |
|     bool is_repeating() const { return m_properties.repeating == GradientRepeating::Yes; }
 | |
| 
 | |
|     float angle_degrees(CSSPixelSize gradient_size) const;
 | |
| 
 | |
|     void resolve_for_size(Layout::Node const&, CSSPixelSize) const override;
 | |
| 
 | |
|     bool is_paintable() const override { return true; }
 | |
|     void paint(PaintContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering image_rendering) const override;
 | |
| 
 | |
| private:
 | |
|     LinearGradientStyleValue(GradientDirection direction, Vector<LinearColorStopListElement> color_stop_list, GradientType type, GradientRepeating repeating)
 | |
|         : AbstractImageStyleValue(Type::LinearGradient)
 | |
|         , m_properties { .direction = direction, .color_stop_list = move(color_stop_list), .gradient_type = type, .repeating = repeating }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         GradientDirection direction;
 | |
|         Vector<LinearColorStopListElement> color_stop_list;
 | |
|         GradientType gradient_type;
 | |
|         GradientRepeating repeating;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| 
 | |
|     struct ResolvedData {
 | |
|         Painting::LinearGradientData data;
 | |
|         CSSPixelSize size;
 | |
|     };
 | |
| 
 | |
|     mutable Optional<ResolvedData> m_resolved;
 | |
| };
 | |
| 
 | |
| class InheritStyleValue final : public StyleValueWithDefaultOperators<InheritStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<InheritStyleValue> the()
 | |
|     {
 | |
|         static ValueComparingNonnullRefPtr<InheritStyleValue> instance = adopt_ref(*new InheritStyleValue);
 | |
|         return instance;
 | |
|     }
 | |
|     virtual ~InheritStyleValue() override = default;
 | |
| 
 | |
|     ErrorOr<String> to_string() const override { return "inherit"_string; }
 | |
| 
 | |
|     bool properties_equal(InheritStyleValue const&) const { return true; }
 | |
| 
 | |
| private:
 | |
|     InheritStyleValue()
 | |
|         : StyleValueWithDefaultOperators(Type::Inherit)
 | |
|     {
 | |
|     }
 | |
| };
 | |
| 
 | |
| class InitialStyleValue final : public StyleValueWithDefaultOperators<InitialStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<InitialStyleValue> the()
 | |
|     {
 | |
|         static ValueComparingNonnullRefPtr<InitialStyleValue> instance = adopt_ref(*new InitialStyleValue);
 | |
|         return instance;
 | |
|     }
 | |
|     virtual ~InitialStyleValue() override = default;
 | |
| 
 | |
|     ErrorOr<String> to_string() const override { return "initial"_string; }
 | |
| 
 | |
|     bool properties_equal(InitialStyleValue const&) const { return true; }
 | |
| 
 | |
| private:
 | |
|     InitialStyleValue()
 | |
|         : StyleValueWithDefaultOperators(Type::Initial)
 | |
|     {
 | |
|     }
 | |
| };
 | |
| 
 | |
| class LengthStyleValue : public StyleValueWithDefaultOperators<LengthStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<LengthStyleValue> create(Length const&);
 | |
|     virtual ~LengthStyleValue() override = default;
 | |
| 
 | |
|     Length const& length() const { return m_length; }
 | |
| 
 | |
|     virtual bool has_auto() const override { return m_length.is_auto(); }
 | |
|     virtual bool has_length() const override { return true; }
 | |
|     virtual bool has_identifier() const override { return has_auto(); }
 | |
|     virtual ErrorOr<String> to_string() const override { return m_length.to_string(); }
 | |
|     virtual Length to_length() const override { return m_length; }
 | |
|     virtual ValueID to_identifier() const override { return has_auto() ? ValueID::Auto : ValueID::Invalid; }
 | |
|     virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size) const override;
 | |
| 
 | |
|     bool properties_equal(LengthStyleValue const& other) const { return m_length == other.m_length; }
 | |
| 
 | |
| private:
 | |
|     explicit LengthStyleValue(Length const& length)
 | |
|         : StyleValueWithDefaultOperators(Type::Length)
 | |
|         , m_length(length)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Length m_length;
 | |
| };
 | |
| 
 | |
| class ListStyleStyleValue final : public StyleValueWithDefaultOperators<ListStyleStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ListStyleStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> position,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> image,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> style_type)
 | |
|     {
 | |
|         return adopt_ref(*new ListStyleStyleValue(move(position), move(image), move(style_type)));
 | |
|     }
 | |
|     virtual ~ListStyleStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> position() const { return m_properties.position; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> image() const { return m_properties.image; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> style_type() const { return m_properties.style_type; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(ListStyleStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     ListStyleStyleValue(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> position,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> image,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> style_type)
 | |
|         : StyleValueWithDefaultOperators(Type::ListStyle)
 | |
|         , m_properties { .position = move(position), .image = move(image), .style_type = move(style_type) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> position;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> image;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> style_type;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class NumericStyleValue : public StyleValueWithDefaultOperators<NumericStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<NumericStyleValue> create_float(float value)
 | |
|     {
 | |
|         return adopt_ref(*new NumericStyleValue(value));
 | |
|     }
 | |
| 
 | |
|     static ValueComparingNonnullRefPtr<NumericStyleValue> create_integer(i64 value)
 | |
|     {
 | |
|         return adopt_ref(*new NumericStyleValue(value));
 | |
|     }
 | |
| 
 | |
|     virtual bool has_length() const override { return to_number() == 0; }
 | |
|     virtual Length to_length() const override { return Length::make_px(0); }
 | |
| 
 | |
|     virtual bool has_number() const override { return true; }
 | |
|     virtual float to_number() const override
 | |
|     {
 | |
|         return m_value.visit(
 | |
|             [](float value) { return value; },
 | |
|             [](i64 value) { return (float)value; });
 | |
|     }
 | |
| 
 | |
|     virtual bool has_integer() const override { return m_value.has<i64>(); }
 | |
|     virtual float to_integer() const override { return m_value.get<i64>(); }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(NumericStyleValue const& other) const { return m_value == other.m_value; }
 | |
| 
 | |
| private:
 | |
|     explicit NumericStyleValue(Variant<float, i64> value)
 | |
|         : StyleValueWithDefaultOperators(Type::Numeric)
 | |
|         , m_value(move(value))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Variant<float, i64> m_value { (i64)0 };
 | |
| };
 | |
| 
 | |
| class OverflowStyleValue final : public StyleValueWithDefaultOperators<OverflowStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<OverflowStyleValue> create(ValueComparingNonnullRefPtr<StyleValue> overflow_x, ValueComparingNonnullRefPtr<StyleValue> overflow_y)
 | |
|     {
 | |
|         return adopt_ref(*new OverflowStyleValue(move(overflow_x), move(overflow_y)));
 | |
|     }
 | |
|     virtual ~OverflowStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> overflow_x() const { return m_properties.overflow_x; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> overflow_y() const { return m_properties.overflow_y; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(OverflowStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     OverflowStyleValue(ValueComparingNonnullRefPtr<StyleValue> overflow_x, ValueComparingNonnullRefPtr<StyleValue> overflow_y)
 | |
|         : StyleValueWithDefaultOperators(Type::Overflow)
 | |
|         , m_properties { .overflow_x = move(overflow_x), .overflow_y = move(overflow_y) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> overflow_x;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> overflow_y;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class PercentageStyleValue final : public StyleValueWithDefaultOperators<PercentageStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<PercentageStyleValue> create(Percentage percentage)
 | |
|     {
 | |
|         return adopt_ref(*new PercentageStyleValue(move(percentage)));
 | |
|     }
 | |
|     virtual ~PercentageStyleValue() override = default;
 | |
| 
 | |
|     Percentage const& percentage() const { return m_percentage; }
 | |
|     Percentage& percentage() { return m_percentage; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(PercentageStyleValue const& other) const { return m_percentage == other.m_percentage; }
 | |
| 
 | |
| private:
 | |
|     PercentageStyleValue(Percentage&& percentage)
 | |
|         : StyleValueWithDefaultOperators(Type::Percentage)
 | |
|         , m_percentage(percentage)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Percentage m_percentage;
 | |
| };
 | |
| 
 | |
| class PositionStyleValue final : public StyleValueWithDefaultOperators<PositionStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<PositionStyleValue> create(PositionEdge edge_x, LengthPercentage const& offset_x, PositionEdge edge_y, LengthPercentage const& offset_y)
 | |
|     {
 | |
|         return adopt_ref(*new PositionStyleValue(edge_x, offset_x, edge_y, offset_y));
 | |
|     }
 | |
|     virtual ~PositionStyleValue() override = default;
 | |
| 
 | |
|     PositionEdge edge_x() const { return m_properties.edge_x; }
 | |
|     LengthPercentage const& offset_x() const { return m_properties.offset_x; }
 | |
|     PositionEdge edge_y() const { return m_properties.edge_y; }
 | |
|     LengthPercentage const& offset_y() const { return m_properties.offset_y; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(PositionStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     PositionStyleValue(PositionEdge edge_x, LengthPercentage const& offset_x, PositionEdge edge_y, LengthPercentage const& offset_y)
 | |
|         : StyleValueWithDefaultOperators(Type::Position)
 | |
|         , m_properties { .edge_x = edge_x, .offset_x = offset_x, .edge_y = edge_y, .offset_y = offset_y }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         PositionEdge edge_x;
 | |
|         LengthPercentage offset_x;
 | |
|         PositionEdge edge_y;
 | |
|         LengthPercentage offset_y;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class ResolutionStyleValue : public StyleValueWithDefaultOperators<ResolutionStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ResolutionStyleValue> create(Resolution resolution)
 | |
|     {
 | |
|         return adopt_ref(*new ResolutionStyleValue(move(resolution)));
 | |
|     }
 | |
|     virtual ~ResolutionStyleValue() override { }
 | |
| 
 | |
|     Resolution const& resolution() const { return m_resolution; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override { return m_resolution.to_string(); }
 | |
| 
 | |
|     bool properties_equal(ResolutionStyleValue const& other) const { return m_resolution == other.m_resolution; }
 | |
| 
 | |
| private:
 | |
|     explicit ResolutionStyleValue(Resolution resolution)
 | |
|         : StyleValueWithDefaultOperators(Type::Resolution)
 | |
|         , m_resolution(move(resolution))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Resolution m_resolution;
 | |
| };
 | |
| 
 | |
| class ShadowStyleValue final : public StyleValueWithDefaultOperators<ShadowStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<ShadowStyleValue>
 | |
|     create(Color color, Length const& offset_x, Length const& offset_y, Length const& blur_radius, Length const& spread_distance, ShadowPlacement placement)
 | |
|     {
 | |
|         return adopt_ref(*new ShadowStyleValue(color, offset_x, offset_y, blur_radius, spread_distance, placement));
 | |
|     }
 | |
|     virtual ~ShadowStyleValue() override = default;
 | |
| 
 | |
|     Color color() const { return m_properties.color; }
 | |
|     Length const& offset_x() const { return m_properties.offset_x; }
 | |
|     Length const& offset_y() const { return m_properties.offset_y; }
 | |
|     Length const& blur_radius() const { return m_properties.blur_radius; }
 | |
|     Length const& spread_distance() const { return m_properties.spread_distance; }
 | |
|     ShadowPlacement placement() const { return m_properties.placement; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(ShadowStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     explicit ShadowStyleValue(Color color, Length const& offset_x, Length const& offset_y, Length const& blur_radius, Length const& spread_distance, ShadowPlacement placement)
 | |
|         : StyleValueWithDefaultOperators(Type::Shadow)
 | |
|         , m_properties { .color = color, .offset_x = offset_x, .offset_y = offset_y, .blur_radius = blur_radius, .spread_distance = spread_distance, .placement = placement }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Gfx::FontPixelMetrics const& font_metrics, CSSPixels font_size, CSSPixels root_font_size) const override;
 | |
| 
 | |
|     struct Properties {
 | |
|         Color color;
 | |
|         Length offset_x;
 | |
|         Length offset_y;
 | |
|         Length blur_radius;
 | |
|         Length spread_distance;
 | |
|         ShadowPlacement placement;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class StringStyleValue : public StyleValueWithDefaultOperators<StringStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<StringStyleValue> create(String const& string)
 | |
|     {
 | |
|         return adopt_ref(*new StringStyleValue(string));
 | |
|     }
 | |
|     virtual ~StringStyleValue() override = default;
 | |
| 
 | |
|     ErrorOr<String> to_string() const override { return m_string; }
 | |
| 
 | |
|     bool properties_equal(StringStyleValue const& other) const { return m_string == other.m_string; }
 | |
| 
 | |
| private:
 | |
|     explicit StringStyleValue(String const& string)
 | |
|         : StyleValueWithDefaultOperators(Type::String)
 | |
|         , m_string(string)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     String m_string;
 | |
| };
 | |
| 
 | |
| class TextDecorationStyleValue final : public StyleValueWithDefaultOperators<TextDecorationStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<TextDecorationStyleValue> create(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> line,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> thickness,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> style,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> color)
 | |
|     {
 | |
|         return adopt_ref(*new TextDecorationStyleValue(move(line), move(thickness), move(style), move(color)));
 | |
|     }
 | |
|     virtual ~TextDecorationStyleValue() override = default;
 | |
| 
 | |
|     ValueComparingNonnullRefPtr<StyleValue> line() const { return m_properties.line; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> thickness() const { return m_properties.thickness; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> style() const { return m_properties.style; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue> color() const { return m_properties.color; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(TextDecorationStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     TextDecorationStyleValue(
 | |
|         ValueComparingNonnullRefPtr<StyleValue> line,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> thickness,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> style,
 | |
|         ValueComparingNonnullRefPtr<StyleValue> color)
 | |
|         : StyleValueWithDefaultOperators(Type::TextDecoration)
 | |
|         , m_properties { .line = move(line), .thickness = move(thickness), .style = move(style), .color = move(color) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         ValueComparingNonnullRefPtr<StyleValue> line;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> thickness;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> style;
 | |
|         ValueComparingNonnullRefPtr<StyleValue> color;
 | |
|         bool operator==(Properties const&) const = default;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class TimeStyleValue : public StyleValueWithDefaultOperators<TimeStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<TimeStyleValue> create(Time time)
 | |
|     {
 | |
|         return adopt_ref(*new TimeStyleValue(move(time)));
 | |
|     }
 | |
|     virtual ~TimeStyleValue() override { }
 | |
| 
 | |
|     Time const& time() const { return m_time; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override { return m_time.to_string(); }
 | |
| 
 | |
|     bool properties_equal(TimeStyleValue const& other) const { return m_time == other.m_time; }
 | |
| 
 | |
| private:
 | |
|     explicit TimeStyleValue(Time time)
 | |
|         : StyleValueWithDefaultOperators(Type::Time)
 | |
|         , m_time(move(time))
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Time m_time;
 | |
| };
 | |
| 
 | |
| class TransformationStyleValue final : public StyleValueWithDefaultOperators<TransformationStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<TransformationStyleValue> create(CSS::TransformFunction transform_function, StyleValueVector&& values)
 | |
|     {
 | |
|         return adopt_ref(*new TransformationStyleValue(transform_function, move(values)));
 | |
|     }
 | |
|     virtual ~TransformationStyleValue() override = default;
 | |
| 
 | |
|     CSS::TransformFunction transform_function() const { return m_properties.transform_function; }
 | |
|     StyleValueVector values() const { return m_properties.values; }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(TransformationStyleValue const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     TransformationStyleValue(CSS::TransformFunction transform_function, StyleValueVector&& values)
 | |
|         : StyleValueWithDefaultOperators(Type::Transformation)
 | |
|         , m_properties { .transform_function = transform_function, .values = move(values) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         CSS::TransformFunction transform_function;
 | |
|         StyleValueVector values;
 | |
|         bool operator==(Properties const& other) const;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class UnresolvedStyleValue final : public StyleValue {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<UnresolvedStyleValue> create(Vector<Parser::ComponentValue>&& values, bool contains_var_or_attr)
 | |
|     {
 | |
|         return adopt_ref(*new UnresolvedStyleValue(move(values), contains_var_or_attr));
 | |
|     }
 | |
|     virtual ~UnresolvedStyleValue() override = default;
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     Vector<Parser::ComponentValue> const& values() const { return m_values; }
 | |
|     bool contains_var_or_attr() const { return m_contains_var_or_attr; }
 | |
| 
 | |
|     virtual bool equals(StyleValue const& other) const override;
 | |
| 
 | |
| private:
 | |
|     UnresolvedStyleValue(Vector<Parser::ComponentValue>&& values, bool contains_var_or_attr)
 | |
|         : StyleValue(Type::Unresolved)
 | |
|         , m_values(move(values))
 | |
|         , m_contains_var_or_attr(contains_var_or_attr)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     Vector<Parser::ComponentValue> m_values;
 | |
|     bool m_contains_var_or_attr { false };
 | |
| };
 | |
| 
 | |
| class UnsetStyleValue final : public StyleValueWithDefaultOperators<UnsetStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<UnsetStyleValue> the()
 | |
|     {
 | |
|         static ValueComparingNonnullRefPtr<UnsetStyleValue> instance = adopt_ref(*new UnsetStyleValue);
 | |
|         return instance;
 | |
|     }
 | |
|     virtual ~UnsetStyleValue() override = default;
 | |
| 
 | |
|     ErrorOr<String> to_string() const override { return "unset"_string; }
 | |
| 
 | |
|     bool properties_equal(UnsetStyleValue const&) const { return true; }
 | |
| 
 | |
| private:
 | |
|     UnsetStyleValue()
 | |
|         : StyleValueWithDefaultOperators(Type::Unset)
 | |
|     {
 | |
|     }
 | |
| };
 | |
| 
 | |
| class StyleValueList final : public StyleValueWithDefaultOperators<StyleValueList> {
 | |
| public:
 | |
|     enum class Separator {
 | |
|         Space,
 | |
|         Comma,
 | |
|     };
 | |
|     static ValueComparingNonnullRefPtr<StyleValueList> create(StyleValueVector&& values, Separator separator) { return adopt_ref(*new StyleValueList(move(values), separator)); }
 | |
| 
 | |
|     size_t size() const { return m_properties.values.size(); }
 | |
|     StyleValueVector const& values() const { return m_properties.values; }
 | |
|     ValueComparingNonnullRefPtr<StyleValue const> value_at(size_t i, bool allow_loop) const
 | |
|     {
 | |
|         if (allow_loop)
 | |
|             return m_properties.values[i % size()];
 | |
|         return m_properties.values[i];
 | |
|     }
 | |
| 
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
| 
 | |
|     bool properties_equal(StyleValueList const& other) const { return m_properties == other.m_properties; }
 | |
| 
 | |
| private:
 | |
|     StyleValueList(StyleValueVector&& values, Separator separator)
 | |
|         : StyleValueWithDefaultOperators(Type::ValueList)
 | |
|         , m_properties { .separator = separator, .values = move(values) }
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     struct Properties {
 | |
|         Separator separator;
 | |
|         StyleValueVector values;
 | |
|         bool operator==(Properties const&) const;
 | |
|     } m_properties;
 | |
| };
 | |
| 
 | |
| class RectStyleValue : public StyleValueWithDefaultOperators<RectStyleValue> {
 | |
| public:
 | |
|     static ValueComparingNonnullRefPtr<RectStyleValue> create(EdgeRect rect);
 | |
|     virtual ~RectStyleValue() override = default;
 | |
| 
 | |
|     EdgeRect rect() const { return m_rect; }
 | |
|     virtual ErrorOr<String> to_string() const override;
 | |
|     virtual bool has_rect() const override { return true; }
 | |
|     virtual EdgeRect to_rect() const override { return m_rect; }
 | |
| 
 | |
|     bool properties_equal(RectStyleValue const& other) const { return m_rect == other.m_rect; }
 | |
| 
 | |
| private:
 | |
|     explicit RectStyleValue(EdgeRect rect)
 | |
|         : StyleValueWithDefaultOperators(Type::Rect)
 | |
|         , m_rect(rect)
 | |
|     {
 | |
|     }
 | |
| 
 | |
|     EdgeRect m_rect;
 | |
| };
 | |
| 
 | |
| }
 | |
| 
 | |
| template<>
 | |
| struct AK::Formatter<Web::CSS::StyleValue> : Formatter<StringView> {
 | |
|     ErrorOr<void> format(FormatBuilder& builder, Web::CSS::StyleValue const& style_value)
 | |
|     {
 | |
|         return Formatter<StringView>::format(builder, TRY(style_value.to_string()));
 | |
|     }
 | |
| };
 | 
