feat: Fixes issue #378: ✨Added support for daily & weekly recurrence event in month view

Author: Shubham Jitiya

example/lib/constants.dart

@@ -5,6 +5,8 @@ import 'app_colors.dart';
 class AppConstants {
   AppConstants._();
 
+  static final List<String> weekTitles = ['M', 'T', 'W', 'T', 'F', 'S', 'S'];
+
   static OutlineInputBorder inputBorder = OutlineInputBorder(
     borderRadius: BorderRadius.circular(7),
     borderSide: BorderSide(

example/lib/main.dart

@@ -42,10 +42,29 @@ List<CalendarEventData> _events = [
     startTime: DateTime(_now.year, _now.month, _now.day, 18, 30),
     endTime: DateTime(_now.year, _now.month, _now.day, 22),
   ),
+  CalendarEventData(
+    date: _now.subtract(Duration(days: 3)),
+    recurrenceSettings: RecurrenceSettings.withCalculatedEndDate(
+      startDate: _now.subtract(Duration(days: 3)),
+      endDate: _now.subtract(Duration(days: 3)),
+      frequency: RepeatFrequency.daily,
+      recurrenceEndOn: RecurrenceEnd.after,
+      interval: 5,
+    ),
+    title: "Physics test prep",
+    description: "Prepare for physics test",
+  ),
   CalendarEventData(
     date: _now.add(Duration(days: 1)),
     startTime: DateTime(_now.year, _now.month, _now.day, 18),
     endTime: DateTime(_now.year, _now.month, _now.day, 19),
+    recurrenceSettings: RecurrenceSettings(
+      startDate: _now,
+      endDate: _now.add(Duration(days: 5)),
+      frequency: RepeatFrequency.daily,
+      interval: 5,
+      recurrenceEndOn: RecurrenceEnd.after,
+    ),
     title: "Wedding anniversary",
     description: "Attend uncle's wedding anniversary.",
   ),

example/lib/pages/event_details_page.dart

@@ -1,13 +1,20 @@
 import 'package:calendar_view/calendar_view.dart';
+import 'package:example/pages/web/delete_event_dialog.dart';
 import 'package:flutter/material.dart';
 
 import '../extension.dart';
 import 'create_event_page.dart';
 
 class DetailsPage extends StatelessWidget {
   final CalendarEventData event;
+  final DateTime date;
+
+  const DetailsPage({
+    super.key,
+    required this.event,
+    required this.date,
+  });
 
-  const DetailsPage({super.key, required this.event});
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -90,10 +97,8 @@ class DetailsPage extends StatelessWidget {
             children: [
               Expanded(
                 child: ElevatedButton(
-                  onPressed: () {
-                    CalendarControllerProvider.of(context)
-                        .controller
-                        .remove(event);
+                  onPressed: () async {
+                    await _handleDeleteEvent(context);
                     Navigator.of(context).pop();
                   },
                   child: Text('Delete Event'),
@@ -111,7 +116,7 @@ class DetailsPage extends StatelessWidget {
                       ),
                     );
 
-                    if (result) {
+                    if (result != null) {
                       Navigator.of(context).pop();
                     }
                   },
@@ -124,4 +129,33 @@ class DetailsPage extends StatelessWidget {
       ),
     );
   }
+
+  /// Handles the deletion of an event, showing a dialog for repeating events.
+  ///
+  /// This method checks if the event is a repeating event. If it is, it shows
+  /// a dialog to the user to choose the deletion type (e.g., delete this
+  /// event, delete following events, delete all events).
+  /// If the event is not repeating, it defaults to deleting all occurrences
+  /// of the event.
+  Future<void> _handleDeleteEvent(BuildContext context) async {
+    DeleteEvent? result;
+    final isRepeatingEvent = event.recurrenceSettings != null &&
+        (event.recurrenceSettings?.frequency != RepeatFrequency.doNotRepeat);
+
+    if (isRepeatingEvent) {
+      result = await showDialog(
+        context: context,
+        builder: (_) => DeleteEventDialog(),
+      );
+    } else {
+      result = DeleteEvent.all;
+    }
+    if (result != null) {
+      CalendarControllerProvider.of(context).controller.deleteRecurrenceEvent(
+            date: date,
+            event: event,
+            deleteEventType: result,
+          );
+    }
+  }
 }

example/lib/pages/web/delete_event_dialog.dart

@@ -0,0 +1,63 @@
+import 'package:calendar_view/calendar_view.dart';
+import 'package:flutter/material.dart';
+
+class DeleteEventDialog extends StatefulWidget {
+  @override
+  _RadioDialogState createState() => _RadioDialogState();
+}
+
+class _RadioDialogState extends State<DeleteEventDialog> {
+  DeleteEvent _selectedOption = DeleteEvent.current;
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: Text('Delete recurring event '),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          RadioListTile<DeleteEvent>(
+            title: Text('This event'),
+            value: DeleteEvent.current,
+            groupValue: _selectedOption,
+            onChanged: (deleteType) {
+              if (deleteType != null) {
+                setState(() => _selectedOption = deleteType);
+              }
+            },
+          ),
+          RadioListTile<DeleteEvent>(
+            title: Text('This and following events'),
+            value: DeleteEvent.following,
+            groupValue: _selectedOption,
+            onChanged: (deleteType) {
+              if (deleteType != null) {
+                setState(() => _selectedOption = deleteType);
+              }
+            },
+          ),
+          RadioListTile<DeleteEvent>(
+            title: Text('All events'),
+            value: DeleteEvent.all,
+            groupValue: _selectedOption,
+            onChanged: (deleteType) {
+              if (deleteType != null) {
+                setState(() => _selectedOption = deleteType);
+              }
+            },
+          ),
+        ],
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(),
+          child: Text('Cancel'),
+        ),
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(_selectedOption),
+          child: Text('Done'),
+        ),
+      ],
+    );
+  }
+}