30277f385c
This only handles very simple <text> elements, but this is enough (with the font-size changes) to improve the badges on the GitHub README a fair bit.
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Utf16View.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Utf16String.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/Layout/SVGTextBox.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/SVGGeometryElement.h>
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#include <LibWeb/SVG/SVGTextContentElement.h>
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namespace Web::SVG {
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SVGTextContentElement::SVGTextContentElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: SVGGraphicsElement(document, move(qualified_name))
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{
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}
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JS::ThrowCompletionOr<void> SVGTextContentElement::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::SVGTextContentElementPrototype>(realm, "SVGTextContentElement"));
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return {};
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}
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Optional<TextAnchor> SVGTextContentElement::text_anchor() const
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{
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if (!layout_node())
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return {};
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switch (layout_node()->computed_values().text_anchor()) {
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case CSS::TextAnchor::Start:
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return TextAnchor::Start;
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case CSS::TextAnchor::Middle:
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return TextAnchor::Middle;
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case CSS::TextAnchor::End:
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return TextAnchor::End;
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default:
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VERIFY_NOT_REACHED();
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}
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}
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void SVGTextContentElement::attribute_changed(DeprecatedFlyString const& name, DeprecatedString const& value)
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{
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SVGGraphicsElement::attribute_changed(name, value);
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if (name == SVG::AttributeNames::x) {
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m_x = AttributeParser::parse_coordinate(value).value_or(m_x);
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} else if (name == SVG::AttributeNames::y) {
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m_y = AttributeParser::parse_coordinate(value).value_or(m_y);
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} else if (name == SVG::AttributeNames::dx) {
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m_dx = AttributeParser::parse_coordinate(value).value_or(m_dx);
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} else if (name == SVG::AttributeNames::dy) {
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m_dy = AttributeParser::parse_coordinate(value).value_or(m_dy);
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}
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}
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JS::GCPtr<Layout::Node> SVGTextContentElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
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{
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return heap().allocate_without_realm<Layout::SVGTextBox>(document(), *this, move(style));
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}
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// https://svgwg.org/svg2-draft/text.html#__svg__SVGTextContentElement__getNumberOfChars
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WebIDL::ExceptionOr<int> SVGTextContentElement::get_number_of_chars() const
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{
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auto chars = TRY_OR_THROW_OOM(vm(), utf8_to_utf16(child_text_content()));
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return static_cast<int>(chars.size());
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}
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Gfx::FloatPoint SVGTextContentElement::get_offset() const
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{
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return { m_x + m_dx, m_y + m_dy };
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}
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}
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