Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/TrackEvent.cpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/Bindings/TrackEventPrototype.h>
+#include <LibWeb/HTML/TrackEvent.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(TrackEvent);
+
+JS::NonnullGCPtr<TrackEvent> TrackEvent::create(JS::Realm& realm, FlyString const& event_name, TrackEventInit event_init)
+{
+    return realm.heap().allocate<TrackEvent>(realm, realm, event_name, move(event_init));
+}
+
+WebIDL::ExceptionOr<JS::NonnullGCPtr<TrackEvent>> TrackEvent::construct_impl(JS::Realm& realm, FlyString const& event_name, TrackEventInit event_init)
+{
+    return create(realm, event_name, move(event_init));
+}
+
+TrackEvent::TrackEvent(JS::Realm& realm, FlyString const& event_name, TrackEventInit event_init)
+    : DOM::Event(realm, event_name, event_init)
+    , m_track(move(event_init.track))
+{
+}
+
+void TrackEvent::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(TrackEvent);
+}
+
+Variant<Empty, JS::Handle<VideoTrack>, JS::Handle<AudioTrack>, JS::Handle<TextTrack>> TrackEvent::track() const
+{
+    // FIXME: This is a bit awkward. When creating a nullable union, our IDL generator creates a type of
+    //        Optional<Variant<...>>, using an empty Optional to represent null. But when retrieving the
+    //        attribute, it expects a type of Variant<Empty, ...>, using Empty to represent null.
+    if (!m_track.has_value())
+        return Empty {};
+
+    return *m_track;
+}
+
+}