Update app.py via AI Editor

app.py

@@ -95,10 +95,10 @@ def markdown_table_to_df(md_table):
 
 def markdown_table_preview(md_text):
     if not md_text:
-        return html.Div("No table found.")
+        return html.Div()  # Always return a preview area, but empty if no text
     tables = extract_markdown_tables(md_text)
     if not tables:
-        return html.Div("No table found.")
+        return html.Div()
     table_divs = []
     for i, table in enumerate(tables):
         df = markdown_table_to_df(table)
@@ -200,7 +200,6 @@ def get_left_col_content():
                         },
                         rows=5,
                         wrap='soft'
-                        # autoFocus removed for Dash compatibility
                     ),
                     dbc.Row([
                         dbc.Col(
@@ -264,7 +263,7 @@ def get_right_col_content(selected_type, shred_doc, pink_doc, pink_review_doc, r
                 file_list_component(),
                 html.Div([
                     html.Div("Loaded Shred Document:", className="mt-2 mb-1"),
-                    markdown_table_preview(shred_doc) if shred_doc else html.Div("No Shred document loaded.")
+                    markdown_table_preview(shred_doc)
                 ], style={'marginBottom': '12px'})
             ])
         )
@@ -277,27 +276,27 @@ def get_right_col_content(selected_type, shred_doc, pink_doc, pink_review_doc, r
             if src == "shred":
                 label = "Shred (Requirements)"
                 store_var = shred_doc
-                loaded_preview = markdown_table_preview(shred_doc) if shred_doc else html.Div("No Shred document loaded.")
+                loaded_preview = markdown_table_preview(shred_doc)
             elif src == "pink":
                 label = "Pink Document"
                 store_var = pink_doc
-                loaded_preview = markdown_narrative_preview(pink_doc) if pink_doc else html.Div("No Pink document loaded.")
+                loaded_preview = markdown_narrative_preview(pink_doc)
             elif src == "pink_review":
                 label = "Pink Review"
                 store_var = pink_review_doc
-                loaded_preview = markdown_table_preview(pink_review_doc) if pink_review_doc else html.Div("No Pink Review document loaded.")
+                loaded_preview = markdown_table_preview(pink_review_doc)
             elif src == "red":
                 label = "Red Document"
                 store_var = red_doc
-                loaded_preview = markdown_narrative_preview(red_doc) if red_doc else html.Div("No Red document loaded.")
+                loaded_preview = markdown_narrative_preview(red_doc)
             elif src == "red_review":
                 label = "Red Review"
                 store_var = red_review_doc
-                loaded_preview = markdown_table_preview(red_review_doc) if red_review_doc else html.Div("No Red Review document loaded.")
+                loaded_preview = markdown_table_preview(red_review_doc)
             elif src == "gold":
                 label = "Gold Document"
                 store_var = gold_doc
-                loaded_preview = markdown_narrative_preview(gold_doc) if gold_doc else html.Div("No Gold document loaded.")
+                loaded_preview = markdown_narrative_preview(gold_doc)
             controls.append(html.Div([
                 html.Label(f"Upload {label}"),
                 dcc.Upload(
@@ -329,7 +328,7 @@ def get_right_col_content(selected_type, shred_doc, pink_doc, pink_review_doc, r
                 html.Div([
                     html.Div("Loaded Document Preview:", className="mt-2 mb-1"),
                     loaded_preview
-                ], style={'marginBottom': '12px'}) if store_var else None,
+                ], style={'marginBottom': '12px'}),
             ], id={'type': f'doc-type-controls-{src}', 'index': selected_type}))
     controls.append(
         dbc.Row([
@@ -476,7 +475,6 @@ def combined_callback(
 ):
     ctx = callback_context
     trigger = ctx.triggered[0]['prop_id'].split('.')[0] if ctx.triggered else ""
-    # Default outputs
     files_display = existing_files if existing_files else []
     new_shred = current_shred
     preview = dash.no_update
@@ -505,7 +503,7 @@ def combined_callback(
             preview = markdown_table_preview(new_shred)
             generated_doc = dash.no_update
         else:
-            preview = markdown_table_preview(new_shred) if new_shred else html.Div("No Shred document loaded.")
+            preview = markdown_table_preview(new_shred)
             generated_doc = dash.no_update
         return files_display, new_shred, preview, loading_msg, generated_doc
 
@@ -551,7 +549,7 @@ def combined_callback(
         logging.info("Document preview updated.")
         return dash.no_update, dash.no_update, preview, "", generated_doc
 
-    return files_display, new_shred, markdown_table_preview(new_shred) if new_shred else html.Div("No Shred document loaded."), loading_msg, generated_doc
+    return files_display, new_shred, markdown_table_preview(new_shred), loading_msg, generated_doc
 
 @app.callback(
     Output("download-document", "data"),