Cleanup: factor out "set default filepath" into a ED_fileselect_ensure_default_filepath

Follow up to D15904, a bunch of places had exact same logic for
"is filepath set? if not, set some default one", so factor all that out
into a separate ED_fileselect_ensure_default_filepath function.

1 files changed, 2 insertions, 15 deletions

diff --git a/source/blender/editors/io/io_usd.c b/source/blender/editors/io/io_usd.c
index 14b8c6e4184..74ce0cca16c 100644
--- a/source/blender/editors/io/io_usd.c
+++ b/source/blender/editors/io/io_usd.c
@@ -21,6 +21,7 @@
 
 #  include "BLT_translation.h"
 
+#  include "ED_fileselect.h"
 #  include "ED_object.h"
 
 #  include "MEM_guardedalloc.h"
@@ -84,21 +85,7 @@ static int wm_usd_export_invoke(bContext *C, wmOperator *op, const wmEvent *UNUS
   options->as_background_job = true;
   op->customdata = options;
 
-  if (!RNA_struct_property_is_set_ex(op->ptr, "filepath", false)) {
-    Main *bmain = CTX_data_main(C);
-    char filepath[FILE_MAX];
-    const char *main_blendfile_path = BKE_main_blendfile_path(bmain);
-
-    if (main_blendfile_path[0] == '\0') {
-      BLI_strncpy(filepath, DATA_("untitled"), sizeof(filepath));
-    }
-    else {
-      BLI_strncpy(filepath, main_blendfile_path, sizeof(filepath));
-    }
-
-    BLI_path_extension_replace(filepath, sizeof(filepath), ".usdc");
-    RNA_string_set(op->ptr, "filepath", filepath);
-  }
+  ED_fileselect_ensure_default_filepath(C, op, ".usdc");
 
   WM_event_add_fileselect(C, op);