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/*
* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/CSS/Parser/Parser.h>
#include <LibWeb/CSS/StyleComputer.h>
#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/HTML/Parser/HTMLParser.h>
#include <LibWeb/Layout/SVGSVGBox.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/SVGSVGElement.h>
namespace Web::SVG {
SVGSVGElement::SVGSVGElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: SVGGraphicsElement(document, qualified_name)
{
}
JS::ThrowCompletionOr<void> SVGSVGElement::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGSVGElementPrototype>(realm, "SVGSVGElement"));
return {};
}
JS::GCPtr<Layout::Node> SVGSVGElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
{
return heap().allocate_without_realm<Layout::SVGSVGBox>(document(), *this, move(style));
}
void SVGSVGElement::apply_presentational_hints(CSS::StyleProperties& style) const
{
// NOTE: Hack to ensure SVG unitless widths/heights are parsed even with <!DOCTYPE html>
auto previous_quirks_mode = document().mode();
const_cast<DOM::Document&>(document()).set_quirks_mode(DOM::QuirksMode::Yes);
ScopeGuard reset_quirks_mode = [&] {
const_cast<DOM::Document&>(document()).set_quirks_mode(previous_quirks_mode);
};
auto width_attribute = attribute(SVG::AttributeNames::width);
auto parsing_context = CSS::Parser::ParsingContext { document() };
if (auto width_value = parse_css_value(parsing_context, attribute(Web::HTML::AttributeNames::width), CSS::PropertyID::Width)) {
style.set_property(CSS::PropertyID::Width, width_value.release_nonnull());
} else if (width_attribute == "") {
// If the `width` attribute is an empty string, it defaults to 100%.
// This matches WebKit and Blink, but not Firefox. The spec is unclear.
// FIXME: Figure out what to do here.
style.set_property(CSS::PropertyID::Width, CSS::PercentageStyleValue::create(CSS::Percentage { 100 }));
}
// Height defaults to 100%
auto height_attribute = attribute(SVG::AttributeNames::height);
if (auto height_value = parse_css_value(parsing_context, attribute(Web::HTML::AttributeNames::height), CSS::PropertyID::Height)) {
style.set_property(CSS::PropertyID::Height, height_value.release_nonnull());
} else if (height_attribute == "") {
// If the `height` attribute is an empty string, it defaults to 100%.
// This matches WebKit and Blink, but not Firefox. The spec is unclear.
// FIXME: Figure out what to do here.
style.set_property(CSS::PropertyID::Height, CSS::PercentageStyleValue::create(CSS::Percentage { 100 }));
}
}
void SVGSVGElement::parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value)
{
SVGGraphicsElement::parse_attribute(name, value);
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);
}
}
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