ladybird/Libraries/LibWeb/Painting/SVGPaintable.h
Aliaksandr Kalenik 910fd426a2 LibWeb: Allow <svg> to establish a stacking context
83b6bc4 went too far by forbidding SVGSVGElement from establishing a
stacking context. This element type does follow the behavior of CSS
boxes, unlike inner SVG elements like `<rect>`, `<circle>`, etc., which
are not supposed to be aware of concepts like stacking contexts,
overflow clipping, scroll offsets, etc.

This change allows us to delete overrides of `before_paint()` and
`after_paint()` in SVGPaintable and SVGSVGPaintable, because display
list recording code has been rearranged to take care of clipping and
scrolling before recursing into SVGSVGPaintable descendants.

`Screenshot/images/css-transform-box-ref.png` expectation is updated and
fixes a bug where a rectangle at the very bottom of the page was not
clipped correctly.
`Screenshot/images/svg-filters-lb-website-ref.png` has a more subtle
difference, but if you look closely, you’ll see it matches other
browsers more closely now.
2025-07-12 11:01:15 +02:00

31 lines
659 B
C++

/*
* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/Layout/SVGBox.h>
#include <LibWeb/Painting/PaintableBox.h>
namespace Web::Painting {
class SVGPaintable : public PaintableBox {
GC_CELL(SVGPaintable, PaintableBox);
public:
Layout::SVGBox const& layout_box() const;
protected:
virtual bool is_svg_paintable() const override { return true; }
SVGPaintable(Layout::SVGBox const&);
virtual CSSPixelRect compute_absolute_rect() const override;
};
template<>
inline bool Paintable::fast_is<SVGPaintable>() const { return is_svg_paintable(); }
}