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61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/*
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* Copyright (c) 2024, the Ladybird developers.
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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/ElementInternalsPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/HTML/ElementInternals.h>
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#include <LibWeb/HTML/HTMLElement.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(ElementInternals);
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GC::Ref<ElementInternals> ElementInternals::create(JS::Realm& realm, HTMLElement& target_element)
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{
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return realm.create<ElementInternals>(realm, target_element);
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}
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ElementInternals::ElementInternals(JS::Realm& realm, HTMLElement& target_element)
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: Bindings::PlatformObject(realm)
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, m_target_element(target_element)
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{
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}
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// https://html.spec.whatwg.org/multipage/custom-elements.html#dom-elementinternals-shadowroot
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GC::Ptr<DOM::ShadowRoot> ElementInternals::shadow_root() const
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{
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// 1. Let target be this's target element.
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auto target = m_target_element;
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// 2. If target is not a shadow host, then return null.
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if (!target->is_shadow_host())
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return nullptr;
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// 3. Let shadow be target's shadow root.
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auto shadow = target->shadow_root();
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// 4. If shadow's available to element internals is false, then return null.
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if (!shadow->available_to_element_internals())
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return nullptr;
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// 5. Return shadow.
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return shadow;
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}
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void ElementInternals::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(ElementInternals);
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}
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void ElementInternals::visit_edges(JS::Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_target_element);
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}
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}
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