Don't allow user to submit obfuscation on blank input

app.py

@@ -120,6 +120,12 @@ def update_save_feedback_button(feedback_rating, feedback_text):
     else:
         return gr.update(interactive=False)
 
+def update_obfuscate_button(input_text):
+    if input_text.strip() == "":
+        return gr.update(interactive=False)
+    else:
+        return gr.update(interactive=True)
+
 demo = gr.Blocks()
 
 with demo:
@@ -175,10 +181,10 @@ with demo:
                         writing_type_sliders.append(slider)
                         sliders.append(slider)
             
-            obfuscate_button = gr.Button("Obfuscate Text")
+            obfuscate_button = gr.Button("Obfuscate Text", interactive=False)
             
             reset_button.click(fn=reset_sliders, inputs=[], outputs=sliders)
-            
+            input_text.change(fn=update_obfuscate_button, inputs=input_text, outputs=obfuscate_button)
 
         with gr.Column(variant="panel"):
             gr.Markdown("# 3) Obfuscated Output")