--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/SDK/ui.cpp	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,99 @@
+#include "foobar2000-sdk-pch.h"
+#include "ui_edit_context.h"
+#include "ui.h"
+#include "genrand.h"
+
+#ifdef _WIN32
+bool ui_drop_item_callback::g_on_drop(interface IDataObject * pDataObject)
+{
+	for (auto ptr : enumerate()) {
+		if (ptr->on_drop(pDataObject)) return true;
+	}
+	return false;
+}
+
+bool ui_drop_item_callback::g_is_accepted_type(interface IDataObject * pDataObject, DWORD * p_effect)
+{
+	for (auto ptr : enumerate()) {
+		if (ptr->is_accepted_type(pDataObject, p_effect)) return true;
+	}
+	return false;
+}
+#endif // _WIN32
+
+bool user_interface::g_find(service_ptr_t<user_interface> & p_out,const GUID & p_guid)
+{
+	for (auto ptr : enumerate()) {
+		if (ptr->get_guid() == p_guid) {
+			p_out = ptr;
+			return true;
+		}
+	}
+	return false;
+}
+
+// ui_edit_context.h code
+
+void ui_edit_context::select_all() { update_selection(pfc::bit_array_true(), pfc::bit_array_true()); }
+void ui_edit_context::select_none() { update_selection(pfc::bit_array_true(), pfc::bit_array_false()); }
+void ui_edit_context::get_selected_items(metadb_handle_list_ref out) { pfc::bit_array_bittable mask(get_item_count()); get_selection_mask(mask); get_items(out, mask); }
+void ui_edit_context::remove_selection() { pfc::bit_array_bittable mask(get_item_count()); get_selection_mask(mask); remove_items(mask); }
+void ui_edit_context::crop_selection() { pfc::bit_array_bittable mask(get_item_count()); get_selection_mask(mask); remove_items(pfc::bit_array_not(mask)); }
+void ui_edit_context::clear() { remove_items(pfc::bit_array_true()); }
+void ui_edit_context::get_all_items(metadb_handle_list_ref out) { get_items(out, pfc::bit_array_true()); }
+
+void ui_edit_context::get_selection_mask(pfc::bit_array_var & out) {
+	const t_size count = get_item_count(); for (t_size walk = 0; walk < count; ++walk) out.set(walk, is_item_selected(walk));
+}
+
+t_size ui_edit_context::get_selection_count(t_size max) {
+	t_size count = 0;
+	const t_size total = get_item_count();
+	for (t_size walk = 0; walk < total && count < max; ++walk) if (is_item_selected(walk)) ++count;
+	return count;
+}
+
+void ui_edit_context::sort_by_format(const char * spec, bool onlySelection) {
+	const t_size count = get_item_count();
+	pfc::array_t<t_size> order; order.set_size(count);
+	pfc::array_t<t_size> sel_map;
+	if (onlySelection) {
+		sel_map.set_size(count);
+		t_size sel_count = 0;
+		for (t_size n = 0; n<count; n++) if (is_item_selected(n)) sel_map[sel_count++] = n;
+		sel_map.set_size(sel_count);
+	}
+
+	{
+		metadb_handle_list temp;
+		pfc::array_t<t_size> order_temp;
+		if (onlySelection) {
+			get_selected_items(temp);
+			order_temp.set_size(count);
+		} else {
+			get_all_items(temp);
+		}
+
+
+		if (spec != NULL) {
+			temp.sort_by_format_get_order(onlySelection ? order_temp.get_ptr() : order.get_ptr(), spec, 0);
+		} else {
+			auto api = genrand_service::get(); api->seed();
+			api->generate_random_order(onlySelection ? order_temp.get_ptr() : order.get_ptr(), temp.get_count());
+		}
+
+		if (onlySelection) {
+			t_size n, ptr;
+			for (n = 0, ptr = 0; n<count; n++) {
+				if (!is_item_selected(n)) {
+					order[n] = n;
+				} else {
+					t_size v = order_temp[ptr++];
+					order[n] = sel_map[v];
+				}
+			}
+		}
+	}
+
+	reorder_items(order.get_ptr(), count);
+}