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c57975c9fd
This reverts 0e3487b9ab.
Back when I made that change, I thought we could make our StyleValue
classes match the typed-om definitions directly. However, they have
different requirements. Typed-om types need to be mutable and GCed,
whereas StyleValues are immutable and ideally wouldn't require a JS VM.
While I was already making such a cataclysmic change, I've moved it into
the StyleValues directory, because it *not* being there has bothered me
for a long time. 😅
104 lines
4.3 KiB
C++
104 lines
4.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
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* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Vector.h>
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#include <LibWeb/CSS/Angle.h>
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#include <LibWeb/CSS/Percentage.h>
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#include <LibWeb/CSS/StyleValues/AbstractImageStyleValue.h>
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#include <LibWeb/CSS/StyleValues/CSSColorValue.h>
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#include <LibWeb/Painting/GradientPainting.h>
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namespace Web::CSS {
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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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class LinearGradientStyleValue final : public AbstractImageStyleValue {
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public:
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using GradientDirection = Variant<Angle, SideOrCorner>;
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enum class GradientType {
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Standard,
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WebKit
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};
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static ValueComparingNonnullRefPtr<LinearGradientStyleValue const> create(GradientDirection direction, Vector<LinearColorStopListElement> color_stop_list, GradientType type, GradientRepeating repeating, Optional<InterpolationMethod> interpolation_method)
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{
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VERIFY(!color_stop_list.is_empty());
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bool any_non_legacy = color_stop_list.find_first_index_if([](auto const& stop) { return !stop.color_stop.color->is_keyword() && stop.color_stop.color->as_color().color_syntax() == ColorSyntax::Modern; }).has_value();
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return adopt_ref(*new (nothrow) LinearGradientStyleValue(direction, move(color_stop_list), type, repeating, interpolation_method, any_non_legacy ? ColorSyntax::Modern : ColorSyntax::Legacy));
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}
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virtual String to_string(SerializationMode) const override;
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virtual ~LinearGradientStyleValue() override = default;
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virtual bool equals(StyleValue const& other) const override;
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Vector<LinearColorStopListElement> const& color_stop_list() const
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{
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return m_properties.color_stop_list;
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}
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// FIXME: This (and the any_non_legacy code in the constructor) is duplicated in the separate gradient classes,
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// should this logic be pulled into some kind of GradientStyleValue superclass?
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// It could also contain the "gradient related things" currently in AbstractImageStyleValue.h
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InterpolationMethod interpolation_method() const
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{
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if (m_properties.interpolation_method.has_value())
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return m_properties.interpolation_method.value();
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return InterpolationMethod { .color_space = InterpolationMethod::default_color_space(m_properties.color_syntax) };
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}
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bool is_repeating() const { return m_properties.repeating == GradientRepeating::Yes; }
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float angle_degrees(CSSPixelSize gradient_size) const;
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void resolve_for_size(Layout::NodeWithStyle const&, CSSPixelSize) const override;
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bool is_paintable() const override { return true; }
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void paint(DisplayListRecordingContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering image_rendering) const override;
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private:
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LinearGradientStyleValue(GradientDirection direction, Vector<LinearColorStopListElement> color_stop_list, GradientType type, GradientRepeating repeating, Optional<InterpolationMethod> interpolation_method, ColorSyntax color_syntax)
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: AbstractImageStyleValue(Type::LinearGradient)
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, m_properties { .direction = direction, .color_stop_list = move(color_stop_list), .gradient_type = type, .repeating = repeating, .interpolation_method = interpolation_method, .color_syntax = color_syntax }
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{
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}
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struct Properties {
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GradientDirection direction;
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Vector<LinearColorStopListElement> color_stop_list;
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GradientType gradient_type;
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GradientRepeating repeating;
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Optional<InterpolationMethod> interpolation_method;
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ColorSyntax color_syntax;
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bool operator==(Properties const&) const = default;
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} m_properties;
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struct ResolvedDataCacheKey {
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Length::ResolutionContext length_resolution_context;
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CSSPixelSize size;
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bool operator==(ResolvedDataCacheKey const&) const = default;
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};
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mutable Optional<ResolvedDataCacheKey> m_resolved_data_cache_key;
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mutable Optional<Painting::LinearGradientData> m_resolved;
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};
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}
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