Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/NavigationObserver.cpp

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2024, Tim Flynn <trflynn89@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/Realm.h>
+#include <LibWeb/HTML/Navigable.h>
+#include <LibWeb/HTML/NavigationObserver.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(NavigationObserver);
+
+NavigationObserver::NavigationObserver(JS::Realm& realm, Navigable& navigable)
+    : Bindings::PlatformObject(realm)
+    , m_navigable(navigable)
+{
+    m_navigable->register_navigation_observer({}, *this);
+}
+
+void NavigationObserver::visit_edges(Cell::Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_navigable);
+    visitor.visit(m_navigation_complete);
+}
+
+void NavigationObserver::finalize()
+{
+    Base::finalize();
+    m_navigable->unregister_navigation_observer({}, *this);
+}
+
+void NavigationObserver::set_navigation_complete(Function<void()> callback)
+{
+    if (callback)
+        m_navigation_complete = JS::create_heap_function(vm().heap(), move(callback));
+    else
+        m_navigation_complete = nullptr;
+}
+
+}