client: Add output messages when loading image viewer / no image found

playbook/templates/client.py

@@ -6,6 +6,12 @@ import subprocess
 import sys
 from time import sleep
 
+text_closed_pictures = "Gehe zurück ..."
+text_load_pictures = "Bilder werden geladen ..."
+text_no_pictures_found = "Hier sind leider noch keine Bilder drinnen."
+
+wait_no_pictures_found = 5 # seconds
+
 indicator = "➤"
 
 binding_up = [ord('k'), curses.KEY_UP]
@@ -37,7 +43,14 @@ def show_pictures(files):
 
 def search_pictures(out, path):
     files = sorted([str(f) for f in path.iterdir() if f.is_file() and f.suffix.lower() in ['.png', '.jpg', '.jpeg', '.gif']])
-    return show_pictures(files)
+    if len(files) <= 0:
+        out(text_no_pictures_found)
+        sleep(wait_no_pictures_found)
+        return True
+    out(text_load_pictures)
+    ret = show_pictures(files)
+    out(text_closed_pictures)
+    return ret
 
 def show_select(win, base_dir, path):
     if not path.is_dir():