From bdf0254b1679ed2d041fccdf6b3d7fb1313e0405 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Tue, 15 Feb 2022 19:15:11 +0100
Subject: [PATCH] LibWeb: Add Element::did_remove_attribute() virtual

This allows subclasses to react to DOM attributes being removed.
---
 Userland/Libraries/LibWeb/DOM/Element.cpp | 2 ++
 Userland/Libraries/LibWeb/DOM/Element.h   | 1 +
 2 files changed, 3 insertions(+)

diff --git a/Userland/Libraries/LibWeb/DOM/Element.cpp b/Userland/Libraries/LibWeb/DOM/Element.cpp
index 3725aa98188..9f42142c2de 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Element.cpp
@@ -161,6 +161,8 @@ void Element::remove_attribute(const FlyString& name)
 {
     m_attributes->remove_attribute(name);
 
+    did_remove_attribute(name);
+
     // FIXME: Invalidate less.
     document().invalidate_style();
 }
diff --git a/Userland/Libraries/LibWeb/DOM/Element.h b/Userland/Libraries/LibWeb/DOM/Element.h
index 4242c6d5ebc..03a6fecff1b 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.h
+++ b/Userland/Libraries/LibWeb/DOM/Element.h
@@ -83,6 +83,7 @@ public:
 
     virtual void apply_presentational_hints(CSS::StyleProperties&) const { }
     virtual void parse_attribute(const FlyString& name, const String& value);
+    virtual void did_remove_attribute(FlyString const&) { }
 
     void recompute_style();