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LibWeb: Implement SVG preserveAspectRatio attribute

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This attribute is used to define how the viewBox should be scaled.
Previously the behaviour implemented was that of "xMidYMid meet", now
all of them work (expect none :P).

With this the Discord login backend is now correctly scaled/positioned.

This also brings our SVG code a little closer to the spec! With spec
comments and all :^)

(Minor non-visible update to layout tests)
This commit is contained in:
MacDue 2023-04-17 01:20:24 +01:00 • committed by Andreas Kling
parent 5a12e9f222
commit 5df4e64eb7
6 changed files with 205 additions and 25 deletions
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2
Userland/Libraries/LibWeb/SVG/SVGSVGElement.cpp
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@ -73,6 +73,8 @@ void SVGSVGElement::parse_attribute(DeprecatedFlyString const& name, DeprecatedS
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::viewBox))
m_view_box = try_parse_view_box(value);
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::preserveAspectRatio))
m_preserve_aspect_ratio = AttributeParser::parse_preserve_aspect_ratio(value);
}
}