Update run.py

run.py

@@ -2,12 +2,10 @@
 import gradio as gr
 
 elemIDs=list(range(5)) # elemIDs 0-4
+defaultElemIDs=list(range(1,len(elemIDs)))
 internal_state=0
  
-def toggler(visibility=[]):
-   if(len(visibility)==0):
-     print("restore visibility to "+str(list(range(1,len(elemIDs))))) 
-     visibility=list(range(len(elemIDs))) # visibility of all buttons by default (i.e., without textbox)
+def toggler(visibility=defaultElemIDs):
    #visibility=[str(e) for e in visibility]
    l=[]
    l.append(gr.Textbox("Visible Text", visible=(0 in visibility)))
@@ -31,9 +29,13 @@ def respond(message, chat_history, visible_elemIDs):
   global internal_state
   previous_state = internal_state
   internal_state = message
-  visible_elemIDs= [e for e in visible_elemIDs if str(e) != str(internal_state)] # streiche button zum aktuellen state
+  visible_elemIDs= [e for e in visible_elemIDs 
+    if ((str(e) != str(internal_state))|(str(e)=="1")] # delete some buttons
   bot_message = f"I was in state \"{previous_state}\" and am now in state \"{internal_state}\". please click another button."
   chat_history.append((message, bot_message))
+  if(len(visible_elemIDs)==0):
+    print("restore visibility to "+str(list(range(1,len(elemIDs))))) 
+    visible_elemIDs=defaultElemIDs # visibility of all buttons by default (i.e., without textbox)
   print("respond:\n\nvisible_elemIDs="+str(visible_elemIDs)+"\n\nbot_message="+str(bot_message))
   return message, chat_history, visible_elemIDs
 
@@ -43,7 +45,7 @@ with gr.Blocks() as demo:
   changeableElems=[msg,btn1,btn2,btn3,btn4]
   visibility=gr.Dropdown(
     elemIDs, 
-    value=[1,2,3,4], #list(range(len(elemIDs))),
+    value=defaultElemIDs, #list(range(len(elemIDs))),
     multiselect=True, 
     visible=True, #False,     
     label="Active Elements") # determine which elements are visible #,visible=False