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LibWeb: Implement the EventTarget constructor
This is typically used as `class A extends EventTarget`. It's usage can be found on websites such as https://loadout.tf/ This has the quirk that we don't do set the EventTarget prototype for HTML::Window, as it would cause a null deref on startup. However, given it wasn't doing this before, I don't think it should cause any issues.
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@ -24,6 +24,8 @@ class EventTarget : public Bindings::PlatformObject {
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public:
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virtual ~EventTarget() override;
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<EventTarget>> construct_impl(JS::Realm&);
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virtual bool is_focusable() const { return false; }
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void add_event_listener(FlyString const& type, IDLEventListener* callback, Variant<AddEventListenerOptions, bool> const& options);
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@ -62,6 +64,7 @@ protected:
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void element_event_handler_attribute_changed(FlyString const& local_name, Optional<String> const& value);
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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private:
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