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LibWeb: Add spec comments to WorkerEnvironmentSettingsObject::setup()

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Tim Ledbetter 2024-05-23 11:14:51 +01:00 committed by Andreas Kling
parent b3f63f35e5
commit 2d487ee5ab
1 changed files with 14 additions and 0 deletions
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14
Userland/Libraries/LibWeb/HTML/Scripting/WorkerEnvironmentSettingsObject.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
* Copyright (c) 2024, Tim Ledbetter <timledbetter@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -11,16 +12,28 @@ namespace Web::HTML {
JS_DEFINE_ALLOCATOR(WorkerEnvironmentSettingsObject);
// https://html.spec.whatwg.org/multipage/workers.html#set-up-a-worker-environment-settings-object
JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObject::setup(JS::NonnullGCPtr<Page> page, NonnullOwnPtr<JS::ExecutionContext> execution_context /* FIXME: null or an environment reservedEnvironment, a URL topLevelCreationURL, and an origin topLevelOrigin */)
{
// 1. FIXME: Let inherited origin be outside settings's origin.
// 2. Let realm be the value of execution context's Realm component.
auto realm = execution_context->realm;
VERIFY(realm);
// 3. Let worker global scope be realm's global object.
auto& worker = verify_cast<HTML::WorkerGlobalScope>(realm->global_object());
// 4. Let settings object be a new environment settings object whose algorithms are defined as follows:
// NOTE: See the functions defined for this class.
auto settings_object = realm->heap().allocate<WorkerEnvironmentSettingsObject>(*realm, move(execution_context), worker);
settings_object->target_browsing_context = nullptr;
// FIXME: 5. Set settings object's id to a new unique opaque string, creation URL to worker global scope's url, top-level creation URL to null, target browsing context to null, and active service worker to null.
// FIXME: 6. If worker global scope is a DedicatedWorkerGlobalScope object, then set settings object's top-level origin to outside settings's top-level origin.
// FIXME: 7. Otherwise, set settings object's top-level origin to an implementation-defined value.
// 8. Set realm's [[HostDefined]] field to settings object.
auto intrinsics = realm->heap().allocate<Bindings::Intrinsics>(*realm, *realm);
auto host_defined = make<Bindings::HostDefined>(settings_object, intrinsics, page);
realm->set_host_defined(move(host_defined));
@ -29,6 +42,7 @@ JS::NonnullGCPtr<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObjec
// the realm's [[HostDefined]] internal slot as the internal slot contains the web platform intrinsics
worker.initialize_web_interfaces({});
// 9. Return settings object.
return settings_object;
}