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/DataTransferItemList.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibJS/Forward.h>
+#include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/WebIDL/ExceptionOr.h>
+#include <LibWeb/WebIDL/Types.h>
+
+namespace Web::HTML {
+
+// https://html.spec.whatwg.org/multipage/dnd.html#the-datatransferitemlist-interface
+class DataTransferItemList : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(DataTransferItemList, Bindings::PlatformObject);
+    JS_DECLARE_ALLOCATOR(DataTransferItemList);
+
+public:
+    static JS::NonnullGCPtr<DataTransferItemList> create(JS::Realm&, JS::NonnullGCPtr<DataTransfer>);
+    virtual ~DataTransferItemList() override;
+
+    WebIDL::UnsignedLong length() const;
+
+    WebIDL::ExceptionOr<JS::GCPtr<DataTransferItem>> add(String const& data, String const& type);
+    JS::GCPtr<DataTransferItem> add(JS::NonnullGCPtr<FileAPI::File>);
+
+private:
+    DataTransferItemList(JS::Realm&, JS::NonnullGCPtr<DataTransfer>);
+
+    virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(JS::Cell::Visitor&) override;
+
+    virtual Optional<JS::Value> item_value(size_t index) const override;
+
+    JS::NonnullGCPtr<DataTransfer> m_data_transfer;
+};
+
+}