change warning to error

app.py

@@ -33,8 +33,8 @@ with gr.Blocks() as demo:
         (
             start_button
             .click(prepare_input, [input_video, start_time, end_time, lang_radio, model_dropdown], [output_transcribe, output_file])
-            .then(prepare_output, inputs=input_video, outputs=[adjust_speaker, adjust_audio, prev_button, next_button, adjust_button])
-            .then(prepare_video_subtitle, inputs=[input_video, start_time, end_time], outputs=output_video)
+            .success(prepare_output, inputs=input_video, outputs=[adjust_speaker, adjust_audio, prev_button, next_button, adjust_button])
+            .success(prepare_video_subtitle, inputs=[input_video, start_time, end_time], outputs=output_video)
         )
 
     bottom_markdown.render()
@@ -63,7 +63,7 @@ with gr.Blocks() as demo:
     (
         adjust_button
         .click(start_adjust, inputs=[input_video, adjust_speaker], outputs=[output_transcribe, output_file])
-        .then(start_adjust_subtitle, inputs=[input_video, start_time, end_time], outputs=output_video)
+        .success(start_adjust_subtitle, inputs=[input_video, start_time, end_time], outputs=output_video)
     )
 
     with gr.Accordion("Copyright"):

set_up.py

@@ -12,14 +12,13 @@ import utils
 
 def prepare_video_subtitle(input_file, start_time, end_time, progress=gr.Progress()):
     if input_file is None or not os.path.exists(input_file):
-        gr.Warning(ui_lang["input_video_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["input_video_warning"])
     if validate_time_format(start_time) is False:
-        gr.Warning(ui_lang["start_time_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["start_time_warning"])
     if validate_time_format(end_time) is False:
-        gr.Warning(ui_lang["end_time_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["end_time_warning"])
+    if (check_if_time_invalid(start_time, end_time)):
+        raise gr.Error(ui_lang["time_invalid"])
     # Add subtitle to video
     progress(0.8, desc=ui_lang["progress_add_subtitle"])
     add_subtitle_to_video(input_file, base_subtitle_file,
@@ -31,23 +30,17 @@ def prepare_input(input_file, start_time, end_time, lang, model_size, progress=g
     gr.Info(ui_lang["progress_starting_process"])
 
     if input_file is None or not os.path.exists(input_file):
-        gr.Warning(ui_lang["input_video_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["input_video_warning"])
     if validate_time_format(start_time) is False:
-        gr.Warning(ui_lang["start_time_warning"])
-        return [None, None, [None, None]]
-    if validate_time_format(end_time) is False or end_time is '00:00:00':
-        gr.Warning(ui_lang["end_time_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["start_time_warning"])
+    if validate_time_format(end_time) is False:
+        raise gr.Error(ui_lang["end_time_warning"])
     if (check_if_time_invalid(start_time, end_time)):
-        gr.Warning(ui_lang["time_invalid"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["time_invalid"])
     if lang is None:
-        gr.Warning(ui_lang["lang_radio_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["lang_radio_warning"])
     if model_size is None:
-        gr.Warning(ui_lang["model_dropdown_warning"])
-        return [None, None, [None, None]]
+        raise gr.Error(ui_lang["model_dropdown_warning"])
 
     print(f"SOURCE: {input_file}")
     print(f"AUDIO FILE: {audio_file}")

ui.py

@@ -74,8 +74,7 @@ def get_video_from_url(url):
         url, file_name.download_file, quiet=False, fuzzy=True)
 
     if (download_result is None):
-        gr.Warning(ui_lang["get_video_fail_info"])
-        return None
+        raise gr.Error(ui_lang["get_video_fail_info"])
 
     gr.Info(ui_lang["get_video_finished_info"])
     return file_name.download_file
@@ -91,11 +90,7 @@ def get_video_from_url(url):
 # def get_duration(input_file):
 #     print("Checking file")
 #     if input_file is None:
-#         gr.Warning(ui_lang["input_video_warning"])
-#         return [
-#             start_time.update(None, interactive=False),
-#             end_time.update(None, interactive=False)
-#         ]
+#         raise gr.Error(ui_lang["input_video_warning"])
 #     print("Getting duration & Waiting")
 #     info_json = ffmpeg.probe(input_file)
 #     print("Probing finished")