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LibWeb: Add initial support for SVG <textPath>

This patch adds basic support for the SVG `<textPath>`, so it supports
placing text along a path, but none of the extra attributes for
controlling the layout of the text. This is enough to correctly display
the MDN example.
This commit is contained in:
MacDue 2023-12-17 18:35:21 +00:00 committed by Andreas Kling
parent d327104910
commit 809c5b0b03
11 changed files with 171 additions and 0 deletions

View file

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/*
* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/URL.h>
#include <LibWeb/Layout/SVGTextPathBox.h>
#include <LibWeb/SVG/AttributeNames.h>
#include <LibWeb/SVG/SVGTextPathElement.h>
namespace Web::SVG {
JS_DEFINE_ALLOCATOR(SVGTextPathElement);
SVGTextPathElement::SVGTextPathElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: SVGTextContentElement(document, move(qualified_name))
{
}
JS::GCPtr<SVGGeometryElement const> SVGTextPathElement::path_or_shape() const
{
auto href = get_attribute(AttributeNames::href);
if (!href.has_value())
return {};
auto url = document().url().complete_url(*href);
return try_resolve_url_to<SVGGeometryElement const>(url);
}
void SVGTextPathElement::initialize(JS::Realm& realm)
{
Base::initialize(realm);
set_prototype(&Bindings::ensure_web_prototype<Bindings::SVGTextPathElementPrototype>(realm, "SVGTextPathElement"_fly_string));
}
JS::GCPtr<Layout::Node> SVGTextPathElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
{
return heap().allocate_without_realm<Layout::SVGTextPathBox>(document(), *this, move(style));
}
};