From 21e383c24fb0d84ae6eae3b20758f059c4c08530 Mon Sep 17 00:00:00 2001
From: Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
Date: Wed, 21 Jun 2023 15:45:41 +0300
Subject: [PATCH] LibWeb: Add content navigable in NavigableContainer

"Each navigable container has a content navigable, which is either a
navigable or null. It is initially null."
---
 Userland/Libraries/LibWeb/HTML/NavigableContainer.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Userland/Libraries/LibWeb/HTML/NavigableContainer.h b/Userland/Libraries/LibWeb/HTML/NavigableContainer.h
index 3292636b6a..5628c629e7 100644
--- a/Userland/Libraries/LibWeb/HTML/NavigableContainer.h
+++ b/Userland/Libraries/LibWeb/HTML/NavigableContainer.h
@@ -18,6 +18,9 @@ public:
 
     static HashTable<NavigableContainer*>& all_instances();
 
+    JS::GCPtr<Navigable> content_navigable() { return m_content_navigable; }
+    JS::GCPtr<Navigable const> content_navigable() const { return m_content_navigable.ptr(); }
+
     BrowsingContext* nested_browsing_context() { return m_nested_browsing_context; }
     BrowsingContext const* nested_browsing_context() const { return m_nested_browsing_context; }
 
@@ -43,6 +46,9 @@ protected:
 
     JS::GCPtr<BrowsingContext> m_nested_browsing_context;
 
+    // https://html.spec.whatwg.org/multipage/document-sequences.html#content-navigable
+    JS::GCPtr<Navigable> m_content_navigable { nullptr };
+
 private:
     virtual bool is_navigable_container() const override { return true; }
 };