Update app.py

app.py

@@ -472,12 +472,16 @@ def api_fn(api):
         gr.Warning("Invalid API!")
         valid_api = ""
         
+
+def generate_out(prompt, vp_pos, vp_neg, slider, example_prompt, gallery, num_inference_steps, seed, randomize_seed):
+    if vp_pos == "" and vp_neg == "":
+        gr.Warning("Visual preference is empty.", duration=10)
         
+    return generate(prompt, vp_pos, vp_neg, slider, example_prompt, gallery, num_inference_steps, seed, randomize_seed)
 
 @spaces.GPU(duration=45)
 def generate(prompt, vp_pos, vp_neg, slider, example_prompt, gallery, num_inference_steps, seed, randomize_seed):
     if vp_pos == "" and vp_neg == "":
-        gr.Warning("Visual preference is empty.", duration=10)
         slider = 0
 
     for filter in word_list:
@@ -754,7 +758,7 @@ with gr.Blocks(css=css, title="ViPer Demo", theme=gr.themes.Base()) as demo:
     )
 
     run_button.click(
-        fn = generate,
+        fn = generate_out,
         inputs = [prompt, positive_extracted_vp, negative_extracted_vp, slider, example_prompt, gallery, num_inference_steps, seed, randomize_seed],
         outputs = [result, example_prompt, gallery],
     )