mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-03 13:02:09 +02:00
e495db44d5
Previously, `Document::notify_css_background_image_loaded()` walked the entire `PaintableBox` subtree and cleared each box's paintable cache whenever any CSS image finished loading. Replace this with per-image observers owned by the layout node. During `apply_style`, each node registers as an `ImageStyleValue::Client` for the images its style references. On load, only the affected layout node's paintables are invalidated.
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/*
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* Copyright (c) 2026-present, the Ladybird developers.
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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/Optional.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibWeb/CSS/StyleValues/AbstractImageStyleValue.h>
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namespace Web::CSS {
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class ImageSetStyleValue final : public AbstractImageStyleValue {
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using Base = AbstractImageStyleValue;
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public:
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struct Option {
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NonnullRefPtr<AbstractImageStyleValue const> image;
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NonnullRefPtr<StyleValue const> resolution;
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Optional<String> type;
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};
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static ValueComparingNonnullRefPtr<ImageSetStyleValue const> create(Vector<Option>);
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virtual ~ImageSetStyleValue() override = default;
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virtual void visit_edges(JS::Cell::Visitor&) const override;
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virtual void serialize(StringBuilder&, SerializationMode) const override;
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virtual bool equals(StyleValue const& other) const override;
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virtual bool is_computationally_independent() const override;
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virtual void load_any_resources(DOM::Document&) override;
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virtual void load_any_resources(Layout::NodeWithStyle const&) override;
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virtual Optional<CSSPixels> natural_width() const override;
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virtual Optional<CSSPixels> natural_height() const override;
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virtual Optional<CSSPixelFraction> natural_aspect_ratio() const override;
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virtual void resolve_for_size(Layout::NodeWithStyle const&, CSSPixelSize) const override;
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virtual bool is_paintable() const override;
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virtual void paint(DisplayListRecordingContext&, DevicePixelRect const&, ImageRendering) const override;
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virtual Optional<Gfx::Color> color_if_single_pixel_bitmap() const override;
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AbstractImageStyleValue const* selected_image() const { return m_selected_image; }
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private:
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explicit ImageSetStyleValue(Vector<Option>);
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virtual void set_style_sheet(GC::Ptr<CSSStyleSheet>) override;
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virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(ComputationContext const&) const override;
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AbstractImageStyleValue const* select_image(double device_pixels_per_css_pixel, Optional<CalculationResolutionContext> const&) const;
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void update_selected_image_for_layout_node(Layout::NodeWithStyle const&) const;
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Vector<Option> m_options;
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GC::Ptr<CSSStyleSheet> m_style_sheet;
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mutable AbstractImageStyleValue const* m_selected_image { nullptr };
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};
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}
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