ladybird/Libraries/LibWeb/HTML/Worker.h
CountBleck ffdc333e95 LibWeb: Construct Worker objects using JS::Realm, not DOM::Document
Since no part of the process of constructing a Worker needs anything
from the document, the realm makes more sense to use, especially since
we're given one to begin with. This change is necessary to allow Workers
to be constructed by workers.
2026-01-31 22:45:08 +01:00

73 lines
2.4 KiB
C++

/*
* Copyright (c) 2022, Ben Abraham <ben.d.abraham@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/Forward.h>
#include <LibWeb/HTML/AbstractWorker.h>
#include <LibWeb/HTML/Window.h>
#include <LibWeb/HTML/WorkerAgentParent.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
#define ENUMERATE_WORKER_EVENT_HANDLERS(E) \
E(onmessage, HTML::EventNames::message) \
E(onmessageerror, HTML::EventNames::messageerror)
namespace Web::HTML {
// https://html.spec.whatwg.org/multipage/workers.html#dedicated-workers-and-the-worker-interface
class Worker
: public DOM::EventTarget
, public HTML::AbstractWorker {
WEB_PLATFORM_OBJECT(Worker, DOM::EventTarget);
GC_DECLARE_ALLOCATOR(Worker);
public:
static WebIDL::ExceptionOr<GC::Ref<Worker>> create(JS::Realm& realm, TrustedTypes::TrustedScriptURLOrString const& script_url, WorkerOptions const& options);
static WebIDL::ExceptionOr<GC::Ref<Worker>> construct_impl(JS::Realm& realm, TrustedTypes::TrustedScriptURLOrString const& script_url, WorkerOptions const& options)
{
return Worker::create(realm, script_url, options);
}
WebIDL::ExceptionOr<void> terminate();
WebIDL::ExceptionOr<void> post_message(JS::Value message, StructuredSerializeOptions const&);
WebIDL::ExceptionOr<void> post_message(JS::Value message, Vector<GC::Root<JS::Object>> const& transfer);
virtual ~Worker() = default;
GC::Ptr<MessagePort> outside_message_port() { return m_outside_port; }
void set_agent(WorkerAgentParent& agent) { m_agent = agent; }
#undef __ENUMERATE
#define __ENUMERATE(attribute_name, event_name) \
void set_##attribute_name(WebIDL::CallbackType*); \
WebIDL::CallbackType* attribute_name();
ENUMERATE_WORKER_EVENT_HANDLERS(__ENUMERATE)
#undef __ENUMERATE
protected:
Worker(JS::Realm&, String const&, WorkerOptions const&);
// ^AbstractWorker
virtual DOM::EventTarget& this_event_target() override { return *this; }
private:
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
String m_script_url;
WorkerOptions m_options;
GC::Ptr<MessagePort> m_outside_port;
GC::Ptr<WorkerAgentParent> m_agent;
};
void run_a_worker(Variant<GC::Ref<Worker>, GC::Ref<SharedWorker>> worker, URL::URL& url, EnvironmentSettingsObject& outside_settings, GC::Ptr<MessagePort> outside_port, WorkerOptions const& options);
}