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LibWeb: Add a time origin property for all ESOs

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This acts as a baseline for performance related timestamps.
This commit is contained in:
Tim Ledbetter
2025-01-07 10:08:14 +00:00
committed by Alexander Kalenik
parent a8904451ff
commit 8963e62a5e
9 changed files with 29 additions and 5 deletions
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10
Libraries/LibWeb/HTML/Scripting/WorkerEnvironmentSettingsObject.cpp
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@@ -18,8 +18,6 @@ GC_DEFINE_ALLOCATOR(WorkerEnvironmentSettingsObject);
// https://html.spec.whatwg.org/multipage/workers.html#set-up-a-worker-environment-settings-object
GC::Ref<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObject::setup(GC::Ref<Page> page, NonnullOwnPtr<JS::ExecutionContext> execution_context, SerializedEnvironmentSettingsObject const& outside_settings, HighResolutionTime::DOMHighResTimeStamp unsafe_worker_creation_time)
{
(void)unsafe_worker_creation_time;
// 1. Let inherited origin be outside settings's origin.
auto inherited_origin = outside_settings.origin;
@@ -32,7 +30,7 @@ GC::Ref<WorkerEnvironmentSettingsObject> WorkerEnvironmentSettingsObject::setup(
// 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->create<WorkerEnvironmentSettingsObject>(move(execution_context), worker);
auto settings_object = realm->create<WorkerEnvironmentSettingsObject>(move(execution_context), worker, unsafe_worker_creation_time);
settings_object->target_browsing_context = nullptr;
settings_object->m_origin = move(inherited_origin);
@@ -80,6 +78,12 @@ CanUseCrossOriginIsolatedAPIs WorkerEnvironmentSettingsObject::cross_origin_isol
return CanUseCrossOriginIsolatedAPIs::No;
}
double WorkerEnvironmentSettingsObject::time_origin() const
{
// Return the result of coarsening unsafeWorkerCreationTime with worker global scope's cross-origin isolated capability.
return HighResolutionTime::coarsen_time(m_unsafe_worker_creation_time, cross_origin_isolated_capability() == CanUseCrossOriginIsolatedAPIs::Yes);
}
void WorkerEnvironmentSettingsObject::visit_edges(JS::Cell::Visitor& visitor)
{
Base::visit_edges(visitor);