UI: simplify tool-tip logic for operators

- Use WM_operatortype_description to get the operator description.
- Pass properties to WM_operatortype_name,
  so the operator name callback is used.
- Add UI_but_operatortype_get_from_enum_menu function
  to access the operator from enum menus.
- Change WM_operatortype_description to return NULL when there is no
  description, use WM_operatortype_description_or_name
  when either can be used.

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index 07746af4b60..c57fe6d4ba1 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -578,6 +578,9 @@ const char *WM_operatortype_name(struct wmOperatorType *ot, struct PointerRNA *p
 char *WM_operatortype_description(struct bContext *C,
                                   struct wmOperatorType *ot,
                                   struct PointerRNA *properties);
+char *WM_operatortype_description_or_name(struct bContext *C,
+                                          struct wmOperatorType *ot,
+                                          struct PointerRNA *properties);
 
 /* wm_operator_utils.c */
 void WM_operator_type_modal_from_exec_for_object_edit_coords(struct wmOperatorType *ot);