From 753c8eae553fedf0b74180c8bf76b347b6ef4a9e Mon Sep 17 00:00:00 2001
From: Harley Acheson <harley.acheson@gmail.com>
Date: Wed, 4 Oct 2023 11:28:42 -0700
Subject: [PATCH] UI: Interface Font Selection

When selecting fonts for the interface, show thumbnails
and start in the user-specified fonts directory
---
 .../editors/space_buttons/buttons_ops.cc      | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/source/blender/editors/space_buttons/buttons_ops.cc b/source/blender/editors/space_buttons/buttons_ops.cc
index 2bea5abda00..f10ac59644f 100644
--- a/source/blender/editors/space_buttons/buttons_ops.cc
+++ b/source/blender/editors/space_buttons/buttons_ops.cc
@@ -20,6 +20,7 @@
 
 #include "BLT_translation.h"
 
+#include "BKE_appdir.h"
 #include "BKE_context.h"
 #include "BKE_main.h"
 #include "BKE_report.h"
@@ -332,6 +333,31 @@ static int file_browse_invoke(bContext *C, wmOperator *op, const wmEvent *event)
     }
   }
 
+  if (!path[0]) {
+    /* Defaults if the path is empty. */
+    if (STR_ELEM(
+            RNA_property_identifier(prop), "font_path_ui", "font_path_ui_mono", "font_directory"))
+    {
+      if (!U.fontdir[0]) {
+        char fonts_dir[FILE_MAXDIR];
+        BKE_appdir_font_folder_default(fonts_dir, ARRAY_SIZE(fonts_dir));
+        BLI_path_slash_ensure(fonts_dir, ARRAY_SIZE(fonts_dir));
+        path = BLI_strdup(fonts_dir);
+      }
+      else {
+        MEM_freeN(path);
+        path = BLI_strdup(U.fontdir);
+      }
+      RNA_boolean_set(op->ptr, "filter_font", true);
+      RNA_enum_set(op->ptr, "display_type", FILE_IMGDISPLAY);
+      RNA_enum_set(op->ptr, "sort_method", FILE_SORT_ALPHA);
+    }
+    else {
+      MEM_freeN(path);
+      path = BLI_strdup(BKE_appdir_folder_default_or_root());
+    }
+  }
+
   RNA_string_set(op->ptr, path_prop, path);
   MEM_freeN(path);
 
-- 
2.30.2