ladybird/Libraries/LibWeb/HTML/ElementInternals.cpp
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

61 lines
1.6 KiB
C++

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