5aacec65ab
This isn't perfect (especially the global object situation in activate_event_handler), but I believe it's in a much more complete state now :^) This fixes the issue of crashing in prepare_for_ordinary_call with the `i < m_size` crash, as it now uses the IDL callback functions which requires the Environment Settings Object. The environment settings object for the callback is fetched at the time the callback is created, for example, WrapperGenerator gets the incumbent settings object for the callback at the time of wrapping. This allows us to remove passing in ScriptExecutionContext into EventTarget's constructor. With this, we can now drop ScriptExecutionContext.
78 lines
2.1 KiB
C++
78 lines
2.1 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/Bindings/Wrappable.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
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: public RefCounted<MessagePort>
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, public Weakable<MessagePort>
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, public DOM::EventTarget
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, public Bindings::Wrappable {
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public:
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using WrapperType = Bindings::MessagePortWrapper;
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using RefCounted::ref;
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using RefCounted::unref;
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static NonnullRefPtr<MessagePort> create()
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{
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return adopt_ref(*new MessagePort());
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}
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virtual ~MessagePort() override;
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// ^EventTarget
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virtual void ref_event_target() override { ref(); }
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virtual void unref_event_target() override { unref(); }
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virtual JS::Object* create_wrapper(JS::GlobalObject&) override;
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// https://html.spec.whatwg.org/multipage/web-messaging.html#entangle
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void entangle_with(Badge<MessageChannel>, 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(Optional<Bindings::CallbackType>); \
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Bindings::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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MessagePort();
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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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WeakPtr<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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