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LibWeb: Add SVGSVGElement.viewBox attribute

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This attribute has some compatbility issues...
- The spec says it should be an SVGAnimatedRect which contains
  a DOMRect and a DOMReadOnlyRect.
- Blink gives you an SVGAnimatedRect with 2x SVGRect
- Gecko gives you an SVGAnimatedRect with 2x SVGRect? (nullable)

I ended up with something similar to Gecko, an SVGAnimatedRect
with 2x DOMRect? (nullable)

With this fixed, we can now load https://polar.sh/ :^)
This commit is contained in:
Andreas Kling 2024-01-24 22:54:16 +01:00
parent 2fd034d1df
commit b12541b286
12 changed files with 228 additions and 2 deletions
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22
Userland/Libraries/LibWeb/SVG/SVGSVGElement.cpp
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@ -14,6 +14,7 @@
#include <LibWeb/HTML/Parser/HTMLParser.h>
#include <LibWeb/Layout/SVGSVGBox.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/SVGAnimatedRect.h>
#include <LibWeb/SVG/SVGSVGElement.h>
namespace Web::SVG {
@ -29,6 +30,13 @@ void SVGSVGElement::initialize(JS::Realm& realm)
{
Base::initialize(realm);
set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGSVGElementPrototype>(realm, "SVGSVGElement"_fly_string));
m_view_box_for_bindings = heap().allocate<SVGAnimatedRect>(realm, realm);
}
void SVGSVGElement::visit_edges(Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_view_box_for_bindings);
}
JS::GCPtr<Layout::Node> SVGSVGElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
@ -67,8 +75,18 @@ void SVGSVGElement::attribute_changed(FlyString const& name, Optional<String> co
{
SVGGraphicsElement::attribute_changed(name, value);
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::viewBox))
m_view_box = try_parse_view_box(value.value_or(String {}));
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::viewBox)) {
if (!value.has_value()) {
m_view_box_for_bindings->set_nulled(true);
} else {
m_view_box = try_parse_view_box(value.value_or(String {}));
m_view_box_for_bindings->set_nulled(!m_view_box.has_value());
if (m_view_box.has_value()) {
m_view_box_for_bindings->set_base_val(Gfx::DoubleRect { m_view_box->min_x, m_view_box->min_y, m_view_box->width, m_view_box->height });
m_view_box_for_bindings->set_anim_val(Gfx::DoubleRect { m_view_box->min_x, m_view_box->min_y, m_view_box->width, m_view_box->height });
}
}
}
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::preserveAspectRatio))
m_preserve_aspect_ratio = AttributeParser::parse_preserve_aspect_ratio(value.value_or(String {}));
if (name.equals_ignoring_ascii_case(SVG::AttributeNames::width) || name.equals_ignoring_ascii_case(SVG::AttributeNames::height))