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/IndexedDB/Internal/ConnectionQueueHandler.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2024, stelar7 <dudedbz@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/HashMap.h>
+#include <LibJS/Heap/Handle.h>
+#include <LibWeb/DOM/EventTarget.h>
+#include <LibWeb/IndexedDB/IDBRequest.h>
+#include <LibWeb/StorageAPI/StorageKey.h>
+
+namespace Web::IndexedDB {
+
+class ConnectionQueue : public AK::Vector<JS::Handle<IDBRequest>> {
+public:
+    bool all_previous_requests_processed(JS::NonnullGCPtr<IDBRequest> const& request) const
+    {
+        for (auto const& entry : *this) {
+            if (entry == request)
+                return true;
+            if (!entry->processed())
+                return false;
+        }
+
+        return true;
+    }
+};
+
+using ConnectionMap = HashMap<StorageAPI::StorageKey, HashMap<String, ConnectionQueue>>;
+
+// https://w3c.github.io/IndexedDB/#connection-queues
+class ConnectionQueueHandler {
+public:
+    static ConnectionQueue& for_key_and_name(StorageAPI::StorageKey& key, String& name);
+    static ConnectionQueueHandler& the()
+    {
+        static ConnectionQueueHandler s_instance;
+        return s_instance;
+    }
+
+private:
+    ConnectionMap m_open_requests;
+};
+
+}