mirror of
https://github.com/RGBCube/serenity
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c7c3043aa2
The SVG <use> element is used to be able to reuse other SVG graphics without having to re-write the svg element. We now support this feature! :^)
92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
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* Copyright (c) 2023, Preston Taylor <95388976+PrestonLTaylor@users.noreply.github.com>
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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/ExceptionOrUtils.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/DOMStringMap.h>
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#include <LibWeb/SVG/SVGElement.h>
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#include <LibWeb/SVG/SVGUseElement.h>
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namespace Web::SVG {
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SVGElement::SVGElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: Element(document, move(qualified_name))
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{
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}
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JS::ThrowCompletionOr<void> SVGElement::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::SVGElementPrototype>(realm, "SVGElement"));
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m_dataset = TRY(Bindings::throw_dom_exception_if_needed(realm.vm(), [&]() {
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return HTML::DOMStringMap::create(*this);
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}));
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return {};
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}
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void SVGElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_dataset);
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}
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void SVGElement::parse_attribute(DeprecatedFlyString const& name, DeprecatedString const& value)
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{
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Base::parse_attribute(name, value);
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update_use_elements_that_reference_this();
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}
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void SVGElement::inserted()
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{
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Base::inserted();
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update_use_elements_that_reference_this();
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}
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void SVGElement::children_changed()
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{
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Base::children_changed();
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update_use_elements_that_reference_this();
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}
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void SVGElement::update_use_elements_that_reference_this()
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{
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if (is<SVGUseElement>(this)) {
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return;
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}
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document().for_each_in_subtree_of_type<SVGUseElement>([this](SVGUseElement& use_element) {
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use_element.svg_element_changed(*this);
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return IterationDecision::Continue;
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});
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}
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void SVGElement::removed_from(Node* parent)
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{
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Base::removed_from(parent);
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remove_from_use_element_that_reference_this();
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}
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void SVGElement::remove_from_use_element_that_reference_this()
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{
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if (is<SVGUseElement>(this)) {
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return;
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}
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document().for_each_in_subtree_of_type<SVGUseElement>([this](SVGUseElement& use_element) {
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use_element.svg_element_removed(*this);
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return IterationDecision::Continue;
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});
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}
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}
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