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LibWeb: Add customElements.getName

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Keith Cirkel 2024-07-06 15:35:10 +01:00 committed by Andrew Kaster
parent 51f5da00d7
commit 8d593bcfeb
Notes: sideshowbarker 2024-07-17 05:00:08 +09:00 
Author: https://github.com/keithamus 🔰
Commit: https://github.com/LadybirdBrowser/ladybird/commit/8d593bcfeb
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/458
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/tcl3
3 changed files with 17 additions and 0 deletions
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15
Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.cpp
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@ -337,6 +337,21 @@ Variant<JS::Handle<WebIDL::CallbackType>, JS::Value> CustomElementRegistry::get(
return JS::js_undefined(); return JS::js_undefined();
} }
// https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-getname
Optional<String> CustomElementRegistry::get_name(JS::Handle<WebIDL::CallbackType> const& constructor) const
{
// 1. If this CustomElementRegistry contains an entry with constructor constructor, then return that entry's name.
auto existing_definition_iterator = m_custom_element_definitions.find_if([&constructor](auto const& definition) {
return definition->constructor().callback == constructor.cell()->callback;
});
if (!existing_definition_iterator.is_end())
return (*existing_definition_iterator)->name();
// 2. Return null.
return {};
}
// https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-whendefined // https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-whendefined
WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> CustomElementRegistry::when_defined(String const& name) WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> CustomElementRegistry::when_defined(String const& name)
{ {

1
Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.h
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@ -26,6 +26,7 @@ public:
JS::ThrowCompletionOr<void> define(String const& name, WebIDL::CallbackType* constructor, ElementDefinitionOptions options); JS::ThrowCompletionOr<void> define(String const& name, WebIDL::CallbackType* constructor, ElementDefinitionOptions options);
Variant<JS::Handle<WebIDL::CallbackType>, JS::Value> get(String const& name) const; Variant<JS::Handle<WebIDL::CallbackType>, JS::Value> get(String const& name) const;
Optional<String> get_name(JS::Handle<WebIDL::CallbackType> const& constructor) const;
WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> when_defined(String const& name); WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> when_defined(String const& name);
void upgrade(JS::NonnullGCPtr<DOM::Node> root) const; void upgrade(JS::NonnullGCPtr<DOM::Node> root) const;

1
Userland/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.idl
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@ -5,6 +5,7 @@
interface CustomElementRegistry { interface CustomElementRegistry {
[CEReactions] undefined define(DOMString name, CustomElementConstructor constructor, optional ElementDefinitionOptions options = {}); [CEReactions] undefined define(DOMString name, CustomElementConstructor constructor, optional ElementDefinitionOptions options = {});
(CustomElementConstructor or undefined) get(DOMString name); (CustomElementConstructor or undefined) get(DOMString name);
DOMString? getName(CustomElementConstructor constructor);
Promise<CustomElementConstructor> whenDefined(DOMString name); Promise<CustomElementConstructor> whenDefined(DOMString name);
[CEReactions] undefined upgrade(Node root); [CEReactions] undefined upgrade(Node root);
}; };