Refresh on empty message, remove autorefresh.

app.py

@@ -36,13 +36,6 @@ def generate_html(me: str) -> str:
             return html
 
 
-def refresh(state):
-    def do_refresh():
-        print(f"refresh, username: {state.value['username']}")
-        return generate_html(state.value["username"])
-    return do_refresh
-
-
 def store_message(writer: str, message: str, me: str):
     if writer and message:
         with open(DATA_FILE, "a") as csvfile:
@@ -68,7 +61,8 @@ def login(username, state):
 
 def send_message(message, state):
     username = state["username"]
-    store_message(username, message, me=username)
+    if message != "":
+        store_message(username, message, me=username)
     return (generate_html(username), "")
 
 css = """
@@ -100,10 +94,10 @@ with gr.Blocks(css=css) as demo:
 
     with (chat_box := gr.Box(visible=False)):
         with gr.Row():
-            output = gr.HTML(refresh(state), label="Chat", every=5.0)
+            output = gr.HTML(label="Chat")
         with gr.Row():
             message = gr.Textbox(
-                label="Your message", show_label=False, max_lines=1
+                label="Your message (leave empty to refresh)", show_label=True, max_lines=1
             )
 
     username.submit(
@@ -122,4 +116,4 @@ with gr.Blocks(css=css) as demo:
         inputs=[message, state],
         outputs=[output, message],
     )
-demo.launch(enable_queue=True)
+demo.launch()