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/*
* Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedString.h>
#include <AK/Variant.h>
#include <LibJS/Heap/Cell.h>
#include <LibWeb/WebIDL/CallbackType.h>
namespace Web::HTML {
class EventHandler final : public JS::Cell {
public:
explicit EventHandler(DeprecatedString);
explicit EventHandler(WebIDL::CallbackType&);
// Either uncompiled source code or a callback.
// https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-value
// NOTE: This does not contain Empty as part of the optimization of not allocating all event handler attributes up front.
// FIXME: The string should actually be an "internal raw uncompiled handler" struct. This struct is just the uncompiled source code plus a source location for reporting parse errors.
// https://html.spec.whatwg.org/multipage/webappapis.html#internal-raw-uncompiled-handler
Variant<DeprecatedString, JS::GCPtr<WebIDL::CallbackType>> value;
// https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-listener
JS::GCPtr<DOM::DOMEventListener> listener;
private:
virtual StringView class_name() const override { return "EventHandler"sv; }
virtual void visit_edges(Cell::Visitor&) override;
};
}
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