feat: add notification permission check & request

Author: cybex-dev

lib/src/managers/notifications/notification_manager.dart

@@ -20,6 +20,12 @@ abstract class NotificationManager {
   /// [CKNotificationAction] buttons (except empty actions). Action buttons with an empty action will be treated as a tap.
   Stream<CKCallResult> get tapStream;
 
+  /// Requests notification permissions from web browser
+  Future<bool> requestPermissions();
+
+  /// Check if the notification permissions are granted
+  Future<bool> hasPermissions();
+
   /// Dispose of the notification manager, releasing resources & streams
   Future<void> dispose();
 

lib/src/managers/notifications/notification_manager_impl_web.dart

@@ -112,4 +112,10 @@ class NotificationManagerImplWeb extends NotificationManager {
 
   @override
   Stream<Iterable<CKNotification>> get notificationStream => _notificationsController.stream;
+
+  @override
+  Future<bool> hasPermissions() => Future.value(_jsNotifications.hasPermissions);
+
+  @override
+  Future<bool> requestPermissions() => _jsNotifications.requestPermissions();
 }

lib/src/method_channel/web_callkit_method_channel.dart

@@ -889,4 +889,10 @@ class MethodChannelWebCallkit extends WebCallkitPlatform {
   CKNotification? getNotification(String uuid) {
     return _notificationManager.getNotification(uuid);
   }
+
+  @override
+  Future<bool> hasPermissions() => _notificationManager.hasPermissions();
+
+  @override
+  Future<bool> requestPermissions() => _notificationManager.requestPermissions();
 }

lib/src/platform_interface/web_callkit_platform_interface.dart

@@ -151,4 +151,10 @@ abstract class WebCallkitPlatform extends PlatformInterface {
 
   /// Get a call currently in the callkit UI.
   CKNotification? getNotification(String uuid);
+
+  /// Requests notification permissions from web browser
+  Future<bool> requestPermissions();
+
+  /// Check if the notification permissions are granted
+  Future<bool> hasPermissions();
 }