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

/*
 * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/FlyString.h>
#include <LibWeb/DOM/Event.h>

namespace Web::HTML {

// https://html.spec.whatwg.org/multipage/webappapis.html#erroreventinit
struct ErrorEventInit : public DOM::EventInit {
    String message;
    String filename; // FIXME: This should be a USVString.
    u32 lineno { 0 };
    u32 colno { 0 };
    JS::Value error { JS::js_null() };
};

// https://html.spec.whatwg.org/multipage/webappapis.html#errorevent
class ErrorEvent final : public DOM::Event {
    WEB_PLATFORM_OBJECT(ErrorEvent, DOM::Event);
    JS_DECLARE_ALLOCATOR(ErrorEvent);

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

    virtual ~ErrorEvent() override;

    // https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-message
    String const& message() const { return m_message; }

    // https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-filename
    String const& filename() const { return m_filename; }

    // https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-lineno
    u32 lineno() const { return m_lineno; }

    // https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-colno
    u32 colno() const { return m_colno; }

    // https://html.spec.whatwg.org/multipage/webappapis.html#dom-errorevent-error
    JS::Value error() const { return m_error; }

private:
    ErrorEvent(JS::Realm&, FlyString const& event_name, ErrorEventInit const& event_init);

    virtual void initialize(JS::Realm&) override;
    virtual void visit_edges(Cell::Visitor&) override;

    String m_message;
    String m_filename; // FIXME: This should be a USVString.
    u32 m_lineno { 0 };
    u32 m_colno { 0 };
    JS::Value m_error;
};

}