2692db8699
Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefCounted.h>
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#include <AK/Weakable.h>
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#include <LibWeb/DOM/EventTarget.h>
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#include <LibWeb/Forward.h>
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namespace Web::HTML {
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#define ENUMERATE_MESSAGE_PORT_EVENT_HANDLERS(E) \
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E(onmessage, HTML::EventNames::message) \
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E(onmessageerror, HTML::EventNames::messageerror)
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// https://html.spec.whatwg.org/multipage/web-messaging.html#message-ports
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class MessagePort final : public DOM::EventTarget {
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WEB_PLATFORM_OBJECT(MessagePort, DOM::EventTarget);
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public:
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static JS::NonnullGCPtr<MessagePort> create(JS::Realm&);
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virtual ~MessagePort() override;
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// https://html.spec.whatwg.org/multipage/web-messaging.html#entangle
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void entangle_with(MessagePort&);
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// https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messageport-postmessage
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void post_message(JS::Value);
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void start();
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void close();
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#undef __ENUMERATE
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#define __ENUMERATE(attribute_name, event_name) \
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void set_##attribute_name(WebIDL::CallbackType*); \
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WebIDL::CallbackType* attribute_name();
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ENUMERATE_MESSAGE_PORT_EVENT_HANDLERS(__ENUMERATE)
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#undef __ENUMERATE
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private:
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explicit MessagePort(JS::Realm&);
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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bool is_entangled() const { return m_remote_port; }
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void disentangle();
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// The HTML spec implies(!) that this is MessagePort.[[RemotePort]]
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JS::GCPtr<MessagePort> m_remote_port;
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// https://html.spec.whatwg.org/multipage/web-messaging.html#has-been-shipped
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bool m_has_been_shipped { false };
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// This is TransferableObject.[[Detached]]
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bool m_detached { false };
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};
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}
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