124c378472
We now create a WorkerAgent for the parent context, which is currently only a Window. Note that Workers can have Workers per the spec. The WorkerAgent spawns a WebWorker process to hold the actual script execution of the Worker. This is modeled with the DedicatedWorkerHost object in the WebWorker process. A start_dedicated_worker IPC method in the WebWorker IPC creates the WorkerHost object. Future different worker types may use different IPC messages to create their WorkerHost instance. This implementation cannot yet postMessage between the parent and the child processes. Co-Authored-By: Andreas Kling <kling@serenityos.org>
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/*
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* Copyright (c) 2022, Ben Abraham <ben.d.abraham@gmail.com>
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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/URLParser.h>
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#include <LibWeb/Bindings/MainThreadVM.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/MessageEvent.h>
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#include <LibWeb/HTML/MessagePort.h>
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#include <LibWeb/HTML/Scripting/ClassicScript.h>
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#include <LibWeb/HTML/Scripting/WindowEnvironmentSettingsObject.h>
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#include <LibWeb/HTML/Scripting/WorkerEnvironmentSettingsObject.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/HTML/WorkerAgent.h>
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#include <LibWeb/HTML/WorkerDebugConsoleClient.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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#define ENUMERATE_WORKER_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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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/workers.html#dedicated-workers-and-the-worker-interface
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class Worker : public DOM::EventTarget {
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WEB_PLATFORM_OBJECT(Worker, DOM::EventTarget);
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public:
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<Worker>> create(String const& script_url, WorkerOptions const options, DOM::Document& document);
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<Worker>> construct_impl(JS::Realm& realm, String const& script_url, WorkerOptions const options)
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{
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auto& window = verify_cast<HTML::Window>(realm.global_object());
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return Worker::create(script_url, options, window.associated_document());
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}
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WebIDL::ExceptionOr<void> terminate();
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void post_message(JS::Value message, JS::Value transfer);
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virtual ~Worker() = default;
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JS::GCPtr<MessagePort> outside_message_port() { return m_outside_port; }
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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_WORKER_EVENT_HANDLERS(__ENUMERATE)
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#undef __ENUMERATE
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protected:
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Worker(String const&, const WorkerOptions, DOM::Document&);
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private:
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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String m_script_url;
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WorkerOptions m_options;
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JS::GCPtr<DOM::Document> m_document;
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JS::GCPtr<MessagePort> m_outside_port;
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JS::GCPtr<WorkerAgent> m_agent;
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void run_a_worker(AK::URL& url, EnvironmentSettingsObject& outside_settings, MessagePort& outside_port, WorkerOptions const& options);
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};
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}
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