ladybird/Userland/Libraries/LibWeb/HTML/TrackEvent.h

/*
 * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/FlyString.h>
#include <AK/Optional.h>
#include <AK/Variant.h>
#include <LibJS/Heap/Handle.h>
#include <LibWeb/DOM/Event.h>

namespace Web::HTML {

struct TrackEventInit : public DOM::EventInit {
    using TrackType = Optional<Variant<JS::Handle<VideoTrack>, JS::Handle<AudioTrack>, JS::Handle<TextTrack>>>;
    TrackType track;
};

class TrackEvent : public DOM::Event {
    WEB_PLATFORM_OBJECT(TrackEvent, DOM::Event);
    JS_DECLARE_ALLOCATOR(TrackEvent);

public:
    [[nodiscard]] static JS::NonnullGCPtr<TrackEvent> create(JS::Realm&, FlyString const& event_name, TrackEventInit = {});
    static WebIDL::ExceptionOr<JS::NonnullGCPtr<TrackEvent>> construct_impl(JS::Realm&, FlyString const& event_name, TrackEventInit);

    // https://html.spec.whatwg.org/multipage/media.html#dom-trackevent-track
    Variant<Empty, JS::Handle<VideoTrack>, JS::Handle<AudioTrack>, JS::Handle<TextTrack>> track() const;

private:
    TrackEvent(JS::Realm&, FlyString const& event_name, TrackEventInit event_init);

    virtual void initialize(JS::Realm&) override;

    TrackEventInit::TrackType m_track;
};

}