mirror of
https://github.com/LadybirdBrowser/ladybird.git
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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.
98 lines
3.3 KiB
C++
98 lines
3.3 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 <LibJS/Interpreter.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/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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struct WorkerOptions {
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DeprecatedString type { "classic" };
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DeprecatedString credentials { "same-origin" };
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DeprecatedString name { "" };
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};
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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(DeprecatedFlyString const& script_url, WorkerOptions const options, DOM::Document& document);
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<Worker>> construct_impl(JS::Realm& realm, DeprecatedFlyString 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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MessagePort* implicit_message_port() { return m_implicit_port.ptr(); }
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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(DeprecatedFlyString const&, const WorkerOptions, DOM::Document&);
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private:
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static HTML::EventLoop& get_vm_event_loop(JS::VM& target_vm)
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{
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return static_cast<Bindings::WebEngineCustomData*>(target_vm.custom_data())->event_loop;
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}
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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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DeprecatedFlyString m_script_url;
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WorkerOptions m_options;
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JS::GCPtr<DOM::Document> m_document;
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Bindings::WebEngineCustomData m_custom_data;
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NonnullRefPtr<JS::VM> m_worker_vm;
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NonnullOwnPtr<JS::Interpreter> m_interpreter;
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JS::GCPtr<WorkerEnvironmentSettingsObject> m_inner_settings;
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JS::VM::InterpreterExecutionScope m_interpreter_scope;
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RefPtr<WorkerDebugConsoleClient> m_console;
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JS::NonnullGCPtr<MessagePort> m_implicit_port;
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JS::GCPtr<MessagePort> m_outside_port;
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// NOTE: These are inside the worker VM.
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JS::GCPtr<JS::Realm> m_worker_realm;
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JS::GCPtr<JS::Object> m_worker_scope;
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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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