feat: remove completed mark without query run

Author: shuoweil

bigframes/formatting_helpers.py

@@ -198,10 +198,16 @@ def progress_callback(
                 display_id=current_display_id,
             )
         elif isinstance(event, bigframes.core.events.ExecutionFinished):
-            display.update_display(
-                display.HTML(f"✅ Completed. {previous_display_html}"),
-                display_id=current_display_id,
-            )
+            if previous_display_html:
+                display.update_display(
+                    display.HTML(f"✅ Completed. {previous_display_html}"),
+                    display_id=current_display_id,
+                )
+            else:
+                display.update_display(
+                    display.HTML(""),
+                    display_id=current_display_id,
+                )
         elif isinstance(event, bigframes.core.events.SessionClosed):
             display.update_display(
                 display.HTML(f"Session {event.session_id} closed."),

notebooks/dataframes/anywidget_mode.ipynb

@@ -91,9 +91,7 @@
    "outputs": [
     {
      "data": {
-      "text/html": [
-       "✅ Completed. "
-      ],
+      "text/html": [],
       "text/plain": [
        "<IPython.core.display.HTML object>"
       ]
@@ -422,9 +420,7 @@
     },
     {
      "data": {
-      "text/html": [
-       "✅ Completed. "
-      ],
+      "text/html": [],
       "text/plain": [
        "<IPython.core.display.HTML object>"
       ]
@@ -826,9 +822,7 @@
     },
     {
      "data": {
-      "text/html": [
-       "✅ Completed. "
-      ],
+      "text/html": [],
       "text/plain": [
        "<IPython.core.display.HTML object>"
       ]
@@ -838,9 +832,7 @@
     },
     {
      "data": {
-      "text/html": [
-       "✅ Completed. "
-      ],
+      "text/html": [],
       "text/plain": [
        "<IPython.core.display.HTML object>"
       ]