--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/SDK/file_operation_callback.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,63 @@
+#pragma once
+#include "metadb.h"
+
+//! Interface to notify component system about files being deleted or moved. Operates in app's main thread only.
+class NOVTABLE file_operation_callback : public service_base {
+public:
+	typedef const pfc::list_base_const_t<const char *> & t_pathlist;
+	//! p_items is a metadb::path_compare sorted list of files that have been deleted.
+	virtual void on_files_deleted_sorted(t_pathlist p_items) = 0;
+	//! p_from is a metadb::path_compare sorted list of files that have been moved, p_to is a list of corresponding target locations.
+	virtual void on_files_moved_sorted(t_pathlist p_from,t_pathlist p_to) = 0;
+	//! p_from is a metadb::path_compare sorted list of files that have been copied, p_to is a list of corresponding target locations.
+	virtual void on_files_copied_sorted(t_pathlist p_from,t_pathlist p_to) = 0;
+
+	static void g_on_files_deleted(const pfc::list_base_const_t<const char *> & p_items);
+	static void g_on_files_moved(const pfc::list_base_const_t<const char *> & p_from,const pfc::list_base_const_t<const char *> & p_to);
+	static void g_on_files_copied(const pfc::list_base_const_t<const char *> & p_from,const pfc::list_base_const_t<const char *> & p_to);
+
+	static bool g_search_sorted_list(const pfc::list_base_const_t<const char*> & p_list,const char * p_string,t_size & p_index);
+	static bool g_update_list_on_moved(metadb_handle_list_ref p_list,t_pathlist p_from,t_pathlist p_to);
+
+	static bool g_update_list_on_moved_ex(metadb_handle_list_ref p_list,t_pathlist p_from,t_pathlist p_to, metadb_handle_list_ref itemsAdded, metadb_handle_list_ref itemsRemoved);
+
+	static bool g_mark_dead_entries(metadb_handle_list_cref items, bit_array_var & mask, t_pathlist deadPaths);
+
+
+	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(file_operation_callback);
+};
+
+
+
+//! New in 0.9.5.
+class NOVTABLE file_operation_callback_dynamic {
+public:
+	//! p_items is a metadb::path_compare sorted list of files that have been deleted.
+	virtual void on_files_deleted_sorted(const pfc::list_base_const_t<const char *> & p_items) = 0;
+	//! p_from is a metadb::path_compare sorted list of files that have been moved, p_to is a list of corresponding target locations.
+	virtual void on_files_moved_sorted(const pfc::list_base_const_t<const char *> & p_from,const pfc::list_base_const_t<const char *> & p_to) = 0;
+	//! p_from is a metadb::path_compare sorted list of files that have been copied, p_to is a list of corresponding target locations.
+	virtual void on_files_copied_sorted(const pfc::list_base_const_t<const char *> & p_from,const pfc::list_base_const_t<const char *> & p_to) = 0;
+};
+
+//! New in 0.9.5.
+class NOVTABLE file_operation_callback_dynamic_manager : public service_base {
+public:
+	virtual void register_callback(file_operation_callback_dynamic * p_callback) = 0;
+	virtual void unregister_callback(file_operation_callback_dynamic * p_callback) = 0;
+
+	FB2K_MAKE_SERVICE_COREAPI(file_operation_callback_dynamic_manager);
+};
+
+//! New in 0.9.5.
+class file_operation_callback_dynamic_impl_base : public file_operation_callback_dynamic {
+public:
+	file_operation_callback_dynamic_impl_base() {file_operation_callback_dynamic_manager::get()->register_callback(this);}
+	~file_operation_callback_dynamic_impl_base() {file_operation_callback_dynamic_manager::get()->unregister_callback(this);}
+
+	void on_files_deleted_sorted(const pfc::list_base_const_t<const char*>& p_items) override { (void)p_items; }
+	void on_files_moved_sorted(const pfc::list_base_const_t<const char*>& p_from, const pfc::list_base_const_t<const char*>& p_to) override { (void)p_from; (void)p_to; }
+	void on_files_copied_sorted(const pfc::list_base_const_t<const char*>& p_from, const pfc::list_base_const_t<const char*>& p_to) override { (void)p_from; (void)p_to; }
+
+	PFC_CLASS_NOT_COPYABLE_EX(file_operation_callback_dynamic_impl_base);
+};