// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_EVENTS_INTEREST_EVENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_EVENTS_INTEREST_EVENT_H_

#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/event_interface_names.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"

namespace blink {

class InterestEventInit;

class InterestEvent final : public Event {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static InterestEvent* Create(const AtomicString& type,
                               const InterestEventInit* initializer) {
    return MakeGarbageCollected<InterestEvent>(type, initializer);
  }

  static InterestEvent* Create(const AtomicString& type,
                               Element* source,
                               Event::Cancelable cancelable) {
    return MakeGarbageCollected<InterestEvent>(type, source, cancelable);
  }

  InterestEvent(const AtomicString&, const InterestEventInit*);
  InterestEvent(const AtomicString&, Element*, Event::Cancelable);

  const AtomicString& InterfaceName() const override {
    return event_interface_names::kInterestEvent;
  }

  void Trace(Visitor*) const override;

  Element* source() const;

  EventTarget* relatedTarget() const override { return related_target_.Get(); }
  void SetRelatedTarget(EventTarget* related_target) override {
    related_target_ = related_target;
  }

  DispatchEventResult DispatchEvent(EventDispatcher&) override;

 private:
  // crbug.com/346835896: When ShadowRootReferenceTargetEnabled ships, the
  // event's source will be managed by `related_target_` instead of `source_`.
  // When the flag is cleaned up the `source_` member will be removed.
  Member<Element> source_;
  Member<EventTarget> related_target_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_EVENTS_INTEREST_EVENT_H_