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2480b94ae7
Previously we were using the HTML parse_dimension_value method for the height and width attributes of an SVG element. These attributes should however be treated as css properties instead and thus also support calc() and absolute units so we use the css parser for this instead.
70 lines
2.8 KiB
C++
70 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/CSS/StyleComputer.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/HTML/Parser/HTMLParser.h>
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#include <LibWeb/Layout/SVGSVGBox.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/SVGSVGElement.h>
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namespace Web::SVG {
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SVGSVGElement::SVGSVGElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGGraphicsElement(document, qualified_name)
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{
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}
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JS::ThrowCompletionOr<void> SVGSVGElement::initialize(JS::Realm& realm)
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{
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MUST_OR_THROW_OOM(Base::initialize(realm));
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set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGSVGElementPrototype>(realm, "SVGSVGElement"));
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return {};
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}
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JS::GCPtr<Layout::Node> SVGSVGElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
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{
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return heap().allocate_without_realm<Layout::SVGSVGBox>(document(), *this, move(style));
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}
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void SVGSVGElement::apply_presentational_hints(CSS::StyleProperties& style) const
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{
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auto width_attribute = attribute(SVG::AttributeNames::width);
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auto parsing_context = CSS::Parser::ParsingContext { document() };
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if (auto width_value = parse_css_value(parsing_context, attribute(Web::HTML::AttributeNames::width), CSS::PropertyID::Width)) {
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style.set_property(CSS::PropertyID::Width, width_value.release_nonnull());
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} else if (width_attribute == "") {
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// If the `width` attribute is an empty string, it defaults to 100%.
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// This matches WebKit and Blink, but not Firefox. The spec is unclear.
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// FIXME: Figure out what to do here.
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style.set_property(CSS::PropertyID::Width, CSS::PercentageStyleValue::create(CSS::Percentage { 100 }));
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}
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// Height defaults to 100%
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auto height_attribute = attribute(SVG::AttributeNames::height);
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if (auto height_value = parse_css_value(parsing_context, attribute(Web::HTML::AttributeNames::height), CSS::PropertyID::Height)) {
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style.set_property(CSS::PropertyID::Height, height_value.release_nonnull());
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} else if (height_attribute == "") {
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// If the `height` attribute is an empty string, it defaults to 100%.
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// This matches WebKit and Blink, but not Firefox. The spec is unclear.
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// FIXME: Figure out what to do here.
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style.set_property(CSS::PropertyID::Height, CSS::PercentageStyleValue::create(CSS::Percentage { 100 }));
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}
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}
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void SVGSVGElement::parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value)
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{
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SVGGraphicsElement::parse_attribute(name, value);
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if (name.equals_ignoring_ascii_case(SVG::AttributeNames::viewBox))
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m_view_box = try_parse_view_box(value);
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}
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}
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