5a74486b59
This is a first step towards merging attribute change and removal notifications into a single function.
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@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/Bindings/Intrinsics.h>
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#include <LibWeb/SVG/AttributeNames.h>
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#include <LibWeb/SVG/AttributeParser.h>
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#include <LibWeb/SVG/SVGPolylineElement.h>
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namespace Web::SVG {
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SVGPolylineElement::SVGPolylineElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGGeometryElement(document, qualified_name)
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{
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}
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JS::ThrowCompletionOr<void> SVGPolylineElement::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::SVGPolylineElementPrototype>(realm, "SVGPolylineElement"));
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return {};
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}
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void SVGPolylineElement::attribute_changed(DeprecatedFlyString const& name, DeprecatedString const& value)
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{
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SVGGeometryElement::attribute_changed(name, value);
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if (name == SVG::AttributeNames::points) {
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m_points = AttributeParser::parse_points(value);
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m_path.clear();
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}
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}
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Gfx::Path& SVGPolylineElement::get_path()
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{
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if (m_path.has_value())
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return m_path.value();
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Gfx::Path path;
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if (m_points.is_empty()) {
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m_path = move(path);
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return m_path.value();
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}
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// 1. perform an absolute moveto operation to the first coordinate pair in the list of points
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path.move_to(m_points.first());
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// 2. for each subsequent coordinate pair, perform an absolute lineto operation to that coordinate pair.
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for (size_t point_index = 1; point_index < m_points.size(); ++point_index)
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path.line_to(m_points[point_index]);
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m_path = move(path);
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return m_path.value();
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}
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}
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