add workaround for changing prompt while generating (#1578)

webui.py

@@ -525,7 +525,7 @@ def parse_meta(raw_prompt_txt):
                 loaded_json = None
 
             if loaded_json is None:
-                return gr.update(), gr.update(visible=True), gr.update(visible=False)
+                return gr.update(), gr.update(), gr.update(visible=False)
 
             return json.dumps(loaded_json), gr.update(visible=False), gr.update(visible=True)
 
@@ -557,11 +557,11 @@ def parse_meta(raw_prompt_txt):
             load_parameter_button
         ] + lora_ctrls, queue=False, show_progress=False)
 
-        generate_button.click(lambda: (gr.update(visible=True, interactive=True), gr.update(visible=True, interactive=True), gr.update(visible=False), []), outputs=[stop_button, skip_button, generate_button, gallery]) \
+        generate_button.click(lambda: (gr.update(visible=True, interactive=True), gr.update(visible=True, interactive=True), gr.update(visible=False, interactive=False), []), outputs=[stop_button, skip_button, generate_button, gallery]) \
             .then(fn=refresh_seed, inputs=[seed_random, image_seed], outputs=image_seed) \
             .then(advanced_parameters.set_all_advanced_parameters, inputs=adps) \
             .then(fn=generate_clicked, inputs=ctrls, outputs=[progress_html, progress_window, progress_gallery, gallery]) \
-            .then(lambda: (gr.update(visible=True), gr.update(visible=False), gr.update(visible=False)), outputs=[generate_button, stop_button, skip_button]) \
+            .then(lambda: (gr.update(visible=True, interactive=True), gr.update(visible=False), gr.update(visible=False)), outputs=[generate_button, stop_button, skip_button]) \
             .then(fn=lambda: None, _js='playNotification').then(fn=lambda: None, _js='refresh_grid_delayed')
 
         for notification_file in ['notification.ogg', 'notification.mp3']: