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LibWeb: Support <svg> elements with display: block
There are a couple of things that went into this: - We now calculate the intrinsic width/height and aspect ratio of <svg> elements based on the spec algorithm instead of our previous ad-hoc guesswork solution. - Replaced elements with automatic size and intrinsic aspect ratio but no intrinsic dimensions are now sized with the stretch-fit width formula. - We take care to assign both used width and used height to <svg> elements before running their SVG formatting contexts. This ensures that the inside SVG content is laid out with knowledge of its viewport geometry. - We avoid infinite recursion in tentative_height_for_replaced_element() by using the already-calculated used width instead of calling the function that calculates the used width (since that may call us right back again).
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11 changed files with 107 additions and 74 deletions
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@ -19,6 +19,7 @@ public:
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virtual ~SVGSVGBox() override = default;
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SVG::SVGSVGElement& dom_node() { return verify_cast<SVG::SVGSVGElement>(ReplacedBox::dom_node()); }
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SVG::SVGSVGElement const& dom_node() const { return verify_cast<SVG::SVGSVGElement>(ReplacedBox::dom_node()); }
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virtual bool can_have_children() const override { return true; }
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@ -28,6 +29,8 @@ public:
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private:
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virtual bool is_svg_svg_box() const final { return true; }
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[[nodiscard]] Optional<float> calculate_intrinsic_aspect_ratio() const;
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};
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template<>
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