fix(flutter_desktop): fix calendar event bugs (#6446)

* fix: row controller being disposed too early in calendar

* fix: empty accessories in calendar event card

frontend/appflowy_flutter/lib/plugins/database/calendar/presentation/calendar_event_card.dart

@@ -1,3 +1,5 @@
+import 'package:appflowy/plugins/database/application/row/row_controller.dart';
+import 'package:appflowy/plugins/database/widgets/row/row_detail.dart';
 import 'package:flutter/material.dart';
 
 import 'package:appflowy/mobile/presentation/database/card/card_detail/mobile_card_detail_screen.dart';
@@ -168,6 +170,22 @@ class _EventCardState extends State<EventCard> {
             databaseController: widget.databaseController,
             rowMeta: widget.event.event.rowMeta,
             layoutSettings: settings,
+            onExpand: () {
+              final rowController = RowController(
+                rowMeta: widget.event.event.rowMeta,
+                viewId: widget.databaseController.viewId,
+                rowCache: widget.databaseController.rowCache,
+              );
+
+              FlowyOverlay.show(
+                context: context,
+                builder: (_) => RowDetailPage(
+                  databaseController: widget.databaseController,
+                  rowController: rowController,
+                  userProfile: context.read<CalendarBloc>().userProfile,
+                ),
+              );
+            },
           ),
         );
       },

frontend/appflowy_flutter/lib/plugins/database/calendar/presentation/calendar_event_editor.dart

@@ -12,8 +12,6 @@ import 'package:appflowy/plugins/database/widgets/cell/editable_cell_builder.dar
 import 'package:appflowy/plugins/database/widgets/cell/editable_cell_skeleton/text.dart';
 import 'package:appflowy/plugins/database/widgets/row/accessory/cell_accessory.dart';
 import 'package:appflowy/plugins/database/widgets/row/cells/cell_container.dart';
-import 'package:appflowy/plugins/database/widgets/row/row_detail.dart';
-import 'package:appflowy/workspace/application/view/view_bloc.dart';
 import 'package:appflowy_backend/protobuf/flowy-database2/protobuf.dart';
 import 'package:appflowy_popover/appflowy_popover.dart';
 import 'package:collection/collection.dart';
@@ -28,6 +26,7 @@ class CalendarEventEditor extends StatelessWidget {
     required RowMetaPB rowMeta,
     required this.layoutSettings,
     required this.databaseController,
+    required this.onExpand,
   })  : rowController = RowController(
           rowMeta: rowMeta,
           viewId: databaseController.viewId,
@@ -40,6 +39,7 @@ class CalendarEventEditor extends StatelessWidget {
   final DatabaseController databaseController;
   final RowController rowController;
   final EditableCellBuilder cellBuilder;
+  final VoidCallback onExpand;
 
   @override
   Widget build(BuildContext context) {
@@ -55,6 +55,7 @@ class CalendarEventEditor extends StatelessWidget {
           EventEditorControls(
             rowController: rowController,
             databaseController: databaseController,
+            onExpand: onExpand,
           ),
           Flexible(
             child: EventPropertyList(
@@ -74,10 +75,12 @@ class EventEditorControls extends StatelessWidget {
     super.key,
     required this.rowController,
     required this.databaseController,
+    required this.onExpand,
   });
 
   final RowController rowController;
   final DatabaseController databaseController;
+  final VoidCallback onExpand;
 
   @override
   Widget build(BuildContext context) {
@@ -122,17 +125,7 @@ class EventEditorControls extends StatelessWidget {
             iconColorOnHover: Theme.of(context).colorScheme.onSecondary,
             onPressed: () {
               PopoverContainer.of(context).close();
-              FlowyOverlay.show(
+              onExpand.call();
-                context: context,
-                builder: (_) => BlocProvider.value(
-                  value: context.read<ViewBloc>(),
-                  child: RowDetailPage(
-                    databaseController: databaseController,
-                    rowController: rowController,
-                    userProfile: context.read<CalendarBloc>().userProfile,
-                  ),
-                ),
-              );
             },
           ),
         ],

frontend/appflowy_flutter/lib/plugins/database/widgets/card/container/accessory.dart

@@ -24,6 +24,10 @@ class CardAccessoryContainer extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    if (accessories.isEmpty) {
+      return const SizedBox.shrink();
+    }
+
     final children = accessories.map<Widget>((accessory) {
       return GestureDetector(
         behavior: HitTestBehavior.opaque,