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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefCounted.h>
#include <AK/Weakable.h>
#include <LibWeb/DOM/EventTarget.h>
#include <LibWeb/Forward.h>
namespace Web::HTML {
#define ENUMERATE_MESSAGE_PORT_EVENT_HANDLERS(E) \
E(onmessage, HTML::EventNames::message) \
E(onmessageerror, HTML::EventNames::messageerror)
// https://html.spec.whatwg.org/multipage/web-messaging.html#message-ports
class MessagePort final : public DOM::EventTarget {
WEB_PLATFORM_OBJECT(MessagePort, DOM::EventTarget);
public:
static JS::NonnullGCPtr<MessagePort> create(JS::Realm&);
virtual ~MessagePort() override;
// https://html.spec.whatwg.org/multipage/web-messaging.html#entangle
void entangle_with(MessagePort&);
// https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messageport-postmessage
void post_message(JS::Value);
void start();
void close();
#undef __ENUMERATE
#define __ENUMERATE(attribute_name, event_name) \
void set_##attribute_name(WebIDL::CallbackType*); \
WebIDL::CallbackType* attribute_name();
ENUMERATE_MESSAGE_PORT_EVENT_HANDLERS(__ENUMERATE)
#undef __ENUMERATE
private:
explicit MessagePort(JS::Realm&);
virtual void visit_edges(Cell::Visitor&) override;
bool is_entangled() const { return m_remote_port; }
void disentangle();
// The HTML spec implies(!) that this is MessagePort.[[RemotePort]]
JS::GCPtr<MessagePort> m_remote_port;
// https://html.spec.whatwg.org/multipage/web-messaging.html#has-been-shipped
bool m_has_been_shipped { false };
// This is TransferableObject.[[Detached]]
bool m_detached { false };
};
}
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