72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/*
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* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibURL/URL.h>
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#include <LibWeb/Bindings/SVGTextPathElement.h>
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#include <LibWeb/Layout/SVGTextPathBox.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/SVGLength.h>
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#include <LibWeb/SVG/SVGTextPathElement.h>
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namespace Web::SVG {
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GC_DEFINE_ALLOCATOR(SVGTextPathElement);
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SVGTextPathElement::SVGTextPathElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGTextContentElement(document, move(qualified_name))
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{
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}
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void SVGTextPathElement::attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_)
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{
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Base::attribute_changed(name, old_value, value, namespace_);
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if (name == SVG::AttributeNames::startOffset)
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m_start_offset = AttributeParser::parse_number_percentage(value.value_or(String {}));
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}
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GC::Ptr<SVGGeometryElement const> SVGTextPathElement::path_or_shape() const
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{
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auto href = has_attribute(AttributeNames::href) ? get_attribute(AttributeNames::href) : get_attribute(AttributeNames::xlink_href);
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if (!href.has_value())
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return {};
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return try_resolve_url_to<SVGGeometryElement const>(*href);
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}
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// https://svgwg.org/svg2-draft/text.html#TextPathElementStartOffsetAttribute
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float SVGTextPathElement::start_offset_for_path_length(float path_length) const
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{
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if (!m_start_offset.has_value())
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return 0;
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return m_start_offset->resolve_relative_to(path_length);
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}
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// https://svgwg.org/svg2-draft/text.html#__svg__SVGTextPathElement__startOffset
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GC::Ref<SVGAnimatedLength> SVGTextPathElement::start_offset() const
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{
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auto base_length = SVGLength::create(realm(), 0, m_start_offset.value_or(NumberPercentage::create_number(0)).value(), SVGLength::ReadOnly::No);
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auto anim_length = SVGLength::create(realm(), 0, m_start_offset.value_or(NumberPercentage::create_number(0)).value(), SVGLength::ReadOnly::Yes);
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return SVGAnimatedLength::create(realm(), base_length, anim_length);
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}
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void SVGTextPathElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(SVGTextPathElement);
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Base::initialize(realm);
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}
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void SVGTextPathElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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SVGURIReferenceMixin::visit_edges(visitor);
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}
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GC::Ptr<Layout::Node> SVGTextPathElement::create_layout_node(GC::Ref<CSS::ComputedProperties> style)
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{
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return heap().allocate<Layout::SVGTextPathBox>(document(), *this, move(style));
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}
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};
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