Scripts/song_select/file_navigator/box_folder.lua

@@ -15,8 +15,14 @@ local function is_2p_screen()
     return (tex.current_screen and tex.current_screen() or "") == "SONG_SELECT_2P"
 end
 
+local function make_count_text(count)
+    local count_cfg = tex.get_skin_config("song_tja_count") or { font_size = 35 }
+    return text.create_raw_text(base.format_song_count(count), count_cfg.font_size or 35, WHITE, BLACK, false, 5.0, 2.0, 1.0)
+end
+
 -- Folder text objects (hori_name, tja_count_text, explanation) from FolderBox::load_text,
--- cached per box on self.
+-- cached per box on self. The song count is filled in by a background scan after the box is
+-- first drawn, so its text is rebuilt whenever the count changes (it stayed at 0 otherwise).
 local function folder_texts(self, box)
     self._folder_texts = self._folder_texts or {}
     local key = box:path()
@@ -27,8 +33,8 @@ local function folder_texts(self, box)
         local hori_cfg = tex.get_skin_config("song_hori_name") or { font_size = 40 }
         local hori_name = text.create_raw_text(name, hori_cfg.font_size or 40, WHITE, BLACK, false, 5.0, 2.0, 1.0)
 
-        local count_cfg = tex.get_skin_config("song_tja_count") or { font_size = 35 }
-        local tja_count_text = text.create_raw_text(base.format_song_count(box.tja_count or 0), count_cfg.font_size or 35, WHITE, BLACK, false, 5.0, 2.0, 1.0)
+        local count = box.tja_count or 0
+        local tja_count_text = make_count_text(count)
 
         local explanation = box:explanation() or {}
         local exp_cfg = tex.get_skin_config("box_folder_explanation") or { font_size = 34 }
@@ -47,8 +53,14 @@ local function folder_texts(self, box)
             end
         end
 
-        t = { hori_name = hori_name, tja_count_text = tja_count_text, explanation = exp_texts }
+        t = { hori_name = hori_name, tja_count_text = tja_count_text, count = count, explanation = exp_texts }
         self._folder_texts[key] = t
+    else
+        local count = box.tja_count or 0
+        if count ~= t.count then
+            t.tja_count_text = make_count_text(count)
+            t.count = count
+        end
     end
     return t
 end