1 files changed, 14 insertions, 0 deletions
diff --git a/source/blender/windowmanager/intern/wm_uilist_type.c b/source/blender/windowmanager/intern/wm_uilist_type.c
index 434131903fc..6d298ee63f1 100644
--- a/source/blender/windowmanager/intern/wm_uilist_type.c
+++ b/source/blender/windowmanager/intern/wm_uilist_type.c
@@ -21,6 +21,7 @@
  */
 
 #include <stdio.h>
+#include <string.h>
 
 #include "BLI_sys_types.h"
 
@@ -109,3 +110,16 @@ void WM_uilisttype_to_full_list_id(const uiListType *ult,
   /* We tag the list id with the list type... */
   BLI_snprintf(r_full_list_id, UI_MAX_NAME_STR, "%s_%s", ult->idname, list_id ? list_id : "");
 }
+
+/**
+ * Get the "non-full" list-ID, see #WM_uilisttype_to_full_list_id() for details.
+ *
+ * \note Assumes `uiList.list_id` was set using #WM_uilisttype_to_full_list_id()!
+ */
+const char *WM_uilisttype_list_id_get(const uiListType *ult, uiList *list)
+{
+  /* Some sanity check for the assumed behavior of #WM_uilisttype_to_full_list_id(). */
+  BLI_assert((list->list_id + strlen(ult->idname))[0] == '_');
+  /* +1 to skip the '_' */
+  return list->list_id + strlen(ult->idname) + 1;
+}