/*

 * Copyright (c) 2023-2024, Tim Flynn <trflynn89@ladybird.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include <LibJS/Forward.h>

#include <LibJS/Heap/HeapFunction.h>

#include <LibJS/SafeFunction.h>

#include <LibWeb/Bindings/PlatformObject.h>

#include <LibWeb/Forward.h>

#include <LibWeb/HTML/DocumentReadyState.h>

namespace Web::DOM {

class DocumentObserver final : public Bindings::PlatformObject {

    WEB_PLATFORM_OBJECT(DocumentObserver, Bindings::PlatformObject);

    JS_DECLARE_ALLOCATOR(DocumentObserver);

public:

    [[nodiscard]] JS::GCPtr<JS::HeapFunction<void()>> document_became_inactive() const { return m_document_became_inactive; }

    void set_document_became_inactive(Function<void()>);

    [[nodiscard]] JS::GCPtr<JS::HeapFunction<void()>> document_completely_loaded() const { return m_document_completely_loaded; }

    void set_document_completely_loaded(Function<void()>);

    [[nodiscard]] JS::GCPtr<JS::HeapFunction<void(HTML::DocumentReadyState)>> document_readiness_observer() const { return m_document_readiness_observer; }

    void set_document_readiness_observer(Function<void(HTML::DocumentReadyState)>);

private:

    explicit DocumentObserver(JS::Realm&, DOM::Document&);

    virtual void visit_edges(Cell::Visitor&) override;

    virtual void finalize() override;

    JS::NonnullGCPtr<DOM::Document> m_document;

    JS::GCPtr<JS::HeapFunction<void()>> m_document_became_inactive;

    JS::GCPtr<JS::HeapFunction<void()>> m_document_completely_loaded;

    JS::GCPtr<JS::HeapFunction<void(HTML::DocumentReadyState)>> m_document_readiness_observer;

};

}