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LibWeb: Update Location initialization according to spec

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(cherry picked from commit 361c6f1b64393de645c6728712658a6052e857a1)
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Pavel Shliak 2024-12-01 02:56:22 +04:00 committed by Nico Weber
parent 026b5e53eb
commit 2270cd93f4
1 changed files with 24 additions and 1 deletions
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25
Userland/Libraries/LibWeb/HTML/Location.cpp
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@ -38,12 +38,35 @@ void Location::visit_edges(Cell::Visitor& visitor)
visitor.visit(m_default_properties);
}
// https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-location-interface
void Location::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(Location);
// FIXME: Implement steps 2.-4.
auto& vm = this->vm();
// Step 2: Let valueOf be location's relevant realm.[[Intrinsics]].[[%Object.prototype.valueOf%]].
auto& intrinsics = realm.intrinsics();
auto value_of_function = intrinsics.object_prototype()->get_without_side_effects(vm.names.valueOf);
// Step 3: Perform ! location.[[DefineOwnProperty]]("valueOf", { [[Value]]: valueOf, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }).
auto value_of_property_descriptor = JS::PropertyDescriptor {
.value = value_of_function,
.writable = false,
.enumerable = false,
.configurable = false,
};
MUST(internal_define_own_property(vm.names.valueOf, value_of_property_descriptor));
// Step 4: Perform ! location.[[DefineOwnProperty]](%Symbol.toPrimitive%, { [[Value]]: undefined, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }).
auto to_primitive_property_descriptor = JS::PropertyDescriptor {
.value = JS::js_undefined(),
.writable = false,
.enumerable = false,
.configurable = false,
};
MUST(internal_define_own_property(vm.well_known_symbol_to_primitive(), to_primitive_property_descriptor));
// 5. Set the value of the [[DefaultProperties]] internal slot of location to location.[[OwnPropertyKeys]]().
// NOTE: In LibWeb this happens before the ESO is set up, so we must avoid location's custom [[OwnPropertyKeys]].