From 9662eec3886314748d09f0205ce42d924aa487f0 Mon Sep 17 00:00:00 2001
From: Luke Wilde <lukew@serenityos.org>
Date: Fri, 30 Sep 2022 19:40:19 +0100
Subject: [PATCH] LibWeb: Apply :enabled pseudo class to only certain elements

I thought the spec listing out the elements again was an oversight, but
it isn't, as simply inverting "is_actually_disabled" makes :enabled
apply to every element.
---
 Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp b/Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp
index 1752676817..b782a2c384 100644
--- a/Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp
+++ b/Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp
@@ -13,8 +13,14 @@
 #include <LibWeb/HTML/AttributeNames.h>
 #include <LibWeb/HTML/HTMLAnchorElement.h>
 #include <LibWeb/HTML/HTMLAreaElement.h>
+#include <LibWeb/HTML/HTMLButtonElement.h>
+#include <LibWeb/HTML/HTMLFieldSetElement.h>
 #include <LibWeb/HTML/HTMLHtmlElement.h>
 #include <LibWeb/HTML/HTMLInputElement.h>
+#include <LibWeb/HTML/HTMLOptGroupElement.h>
+#include <LibWeb/HTML/HTMLOptionElement.h>
+#include <LibWeb/HTML/HTMLSelectElement.h>
+#include <LibWeb/HTML/HTMLTextAreaElement.h>
 
 namespace Web::SelectorEngine {
 
@@ -228,7 +234,8 @@ static inline bool matches_pseudo_class(CSS::Selector::SimpleSelector::PseudoCla
     case CSS::Selector::SimpleSelector::PseudoClass::Type::Enabled:
         // https://html.spec.whatwg.org/multipage/semantics-other.html#selector-enabled
         // The :enabled pseudo-class must match any button, input, select, textarea, optgroup, option, fieldset element, or form-associated custom element that is not actually disabled.
-        return !element.is_actually_disabled();
+        return (is<HTML::HTMLButtonElement>(element) || is<HTML::HTMLInputElement>(element) || is<HTML::HTMLSelectElement>(element) || is<HTML::HTMLTextAreaElement>(element) || is<HTML::HTMLOptGroupElement>(element) || is<HTML::HTMLOptionElement>(element) || is<HTML::HTMLFieldSetElement>(element))
+            && !element.is_actually_disabled();
     case CSS::Selector::SimpleSelector::PseudoClass::Type::Checked:
         return matches_checked_pseudo_class(element);
     case CSS::Selector::SimpleSelector::PseudoClass::Type::Is: