bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
110 lines
4.5 KiB
C++
110 lines
4.5 KiB
C++
/*
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* Copyright (c) 2022, Andrew Kaster <akaster@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Vector.h>
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#include <LibWeb/Bindings/DedicatedWorkerExposedInterfaces.h>
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#include <LibWeb/Bindings/ExceptionOrUtils.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/WorkerGlobalScopePrototype.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/EventHandler.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/WorkerGlobalScope.h>
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#include <LibWeb/HTML/WorkerLocation.h>
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#include <LibWeb/HTML/WorkerNavigator.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(WorkerGlobalScope);
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WorkerGlobalScope::WorkerGlobalScope(JS::Realm& realm, Web::Page& page)
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: DOM::EventTarget(realm)
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, m_page(page)
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{
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}
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WorkerGlobalScope::~WorkerGlobalScope() = default;
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void WorkerGlobalScope::initialize_web_interfaces(Badge<WorkerEnvironmentSettingsObject>)
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{
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auto& realm = this->realm();
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Base::initialize(realm);
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// FIXME: Handle shared worker
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add_dedicated_worker_exposed_interfaces(*this);
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Object::set_prototype(&Bindings::ensure_web_prototype<Bindings::WorkerGlobalScopePrototype>(realm, "WorkerGlobalScope"));
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WindowOrWorkerGlobalScopeMixin::initialize(realm);
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m_navigator = WorkerNavigator::create(*this);
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}
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void WorkerGlobalScope::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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WindowOrWorkerGlobalScopeMixin::visit_edges(visitor);
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visitor.visit(m_location);
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visitor.visit(m_navigator);
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}
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// https://html.spec.whatwg.org/multipage/workers.html#importing-scripts-and-libraries
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WebIDL::ExceptionOr<void> WorkerGlobalScope::import_scripts(Vector<String> urls)
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{
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// The algorithm may optionally be customized by supplying custom perform the fetch hooks,
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// which if provided will be used when invoking fetch a classic worker-imported script.
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// NOTE: Service Workers is an example of a specification that runs this algorithm with its own options for the perform the fetch hook.
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// FIXME: 1. If worker global scope's type is "module", throw a TypeError exception.
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// FIXME: 2. Let settings object be the current settings object.
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// 3. If urls is empty, return.
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if (urls.is_empty())
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return {};
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// FIXME: 4. Parse each value in urls relative to settings object. If any fail, throw a "SyntaxError" DOMException.
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// FIXME: 5. For each url in the resulting URL records, run these substeps:
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// 1. Fetch a classic worker-imported script given url and settings object, passing along any custom perform the fetch steps provided.
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// If this succeeds, let script be the result. Otherwise, rethrow the exception.
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// 2. Run the classic script script, with the rethrow errors argument set to true.
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// NOTE: script will run until it either returns, fails to parse, fails to catch an exception,
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// or gets prematurely aborted by the terminate a worker algorithm defined above.
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// If an exception was thrown or if the script was prematurely aborted, then abort all these steps,
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// letting the exception or aborting continue to be processed by the calling script.
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return {};
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}
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// https://html.spec.whatwg.org/multipage/workers.html#dom-workerglobalscope-location
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JS::NonnullGCPtr<WorkerLocation> WorkerGlobalScope::location() const
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{
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// The location attribute must return the WorkerLocation object whose associated WorkerGlobalScope object is the WorkerGlobalScope object.
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return *m_location;
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}
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// https://html.spec.whatwg.org/multipage/workers.html#dom-worker-navigator
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JS::NonnullGCPtr<WorkerNavigator> WorkerGlobalScope::navigator() const
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{
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// The navigator attribute of the WorkerGlobalScope interface must return an instance of the WorkerNavigator interface,
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// which represents the identity and state of the user agent (the client).
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return *m_navigator;
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}
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#undef __ENUMERATE
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#define __ENUMERATE(attribute_name, event_name) \
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void WorkerGlobalScope::set_##attribute_name(WebIDL::CallbackType* value) \
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{ \
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set_event_handler_attribute(event_name, move(value)); \
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} \
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WebIDL::CallbackType* WorkerGlobalScope::attribute_name() \
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{ \
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return event_handler_attribute(event_name); \
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}
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ENUMERATE_WORKER_GLOBAL_SCOPE_EVENT_HANDLERS(__ENUMERATE)
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#undef __ENUMERATE
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}
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