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/*
* Copyright (c) 2023, Preston Taylor <95388976+PrestonLTaylor@users.noreply.github.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/CSS/StyleProperties.h>
#include <LibWeb/CSS/StyleValues/DisplayStyleValue.h>
#include <LibWeb/CSS/StyleValues/IdentifierStyleValue.h>
#include <LibWeb/CSS/StyleValues/OverflowStyleValue.h>
#include <LibWeb/DOM/ShadowRoot.h>
#include <LibWeb/SVG/SVGSymbolElement.h>
#include <LibWeb/SVG/SVGUseElement.h>
namespace Web::SVG {
SVGSymbolElement::SVGSymbolElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: SVGGraphicsElement(document, qualified_name)
{
}
JS::ThrowCompletionOr<void> SVGSymbolElement::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGSymbolElementPrototype>(realm, "SVGSymbolElement"));
return {};
}
// https://svgwg.org/svg2-draft/struct.html#SymbolNotes
void SVGSymbolElement::apply_presentational_hints(CSS::StyleProperties& style) const
{
// The user agent style sheet sets the overflow property for ‘symbol’ elements to hidden.
auto hidden = CSS::IdentifierStyleValue::create(CSS::ValueID::Hidden).release_value_but_fixme_should_propagate_errors();
style.set_property(CSS::PropertyID::Overflow, CSS::OverflowStyleValue::create(hidden, hidden).release_value_but_fixme_should_propagate_errors());
if (is_direct_child_of_use_shadow_tree()) {
// The generated instance of a ‘symbol’ that is the direct referenced element of a ‘use’ element must always have a computed value of inline for the display property.
style.set_property(CSS::PropertyID::Display, CSS::DisplayStyleValue::create(CSS::Display::from_short(CSS::Display::Short::Inline)).release_value_but_fixme_should_propagate_errors());
} else {
// FIXME: When we have a DefaultSVG.css then use https://svgwg.org/svg2-draft/styling.html#UAStyleSheet instead.
// The user agent must set the display property on the ‘symbol’ element to none, as part of the user agent style sheet,
// and this declaration must have importance over any other CSS rule or presentation attribute.
style.set_property(CSS::PropertyID::Display, CSS::DisplayStyleValue::create(CSS::Display::from_short(CSS::Display::Short::None)).release_value_but_fixme_should_propagate_errors());
}
// TODO: Parse viewBox and apply it in SVGGraphicsElement/SVGGraphicsPaintable
}
bool SVGSymbolElement::is_direct_child_of_use_shadow_tree() const
{
auto maybe_shadow_root = parent();
if (!is<DOM::ShadowRoot>(maybe_shadow_root)) {
return false;
}
auto host = static_cast<const DOM::ShadowRoot&>(*maybe_shadow_root).host();
return is<SVGUseElement>(host);
}
}
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