feat: added notification accessors

Author: cybex-dev

lib/js_notifications_web.dart

@@ -158,4 +158,28 @@ class JsNotificationsWeb extends JsNotificationsPlatform {
     _tapStream ??= StreamController<NotificationActionResult>.broadcast();
     return _tapStream!.stream;
   }
+
+  @override
+  Future<List<String>> getNotificationTags() async {
+    return _notifications.keys.toList();
+  }
+
+  @override
+  Future<interop.JSNotification?> getNotification(String tag) async {
+    return _notifications[tag];
+  }
+
+  @override
+  Future<List<interop.JSNotification>> getAllNotifications() async {
+    return _notifications.values.toList();
+  }
+
+  void _addNotification(String id, interop.JSNotification notification) {
+    _notifications[id] = notification;
+  }
+
+  @override
+  Future<void> dispose() async {
+    await _dismissSubscription.cancel();
+  }
 }

lib/method_channel/js_notifications_method_channel.dart

@@ -75,4 +75,28 @@ class MethodChannelJsNotifications extends JsNotificationsPlatform {
   set scopeUrl(String value) {
     // TODO: implement scopeUrl
   }
+
+  @override
+  Future<List<interop.JSNotification>> getAllNotifications() {
+    // TODO: implement getAllNotifications
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<interop.JSNotification?> getNotification(String tag) {
+    // TODO: implement getNotification
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<String>> getNotificationTags() {
+    // TODO: implement getNotificationTags
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<void> dispose() {
+    // TODO: implement dispose
+    throw UnimplementedError();
+  }
 }

lib/platform_interface/js_notifications_platform_interface.dart

@@ -78,6 +78,15 @@ abstract class JsNotificationsPlatform extends PlatformInterface {
   /// Send action to service worker
   Future<void> sendAction(Map<String, dynamic> data, {String? id});
 
+  /// Get all notification tags
+  Future<List<String>> getNotificationTags();
+
+  /// Get notification by tag
+  Future<interop.JSNotification?> getNotification(String tag);
+
+  /// Get all notifications
+  Future<List<interop.JSNotification>> getAllNotifications();
+
   /// Stream broadcasting notification click events with associated data & action
   Stream<NotificationActionResult> get actionStream;
 
@@ -86,4 +95,6 @@ abstract class JsNotificationsPlatform extends PlatformInterface {
 
   /// Stream broadcasting notification tap events with associated data
   Stream<NotificationActionResult> get tapStream;
+
+  Future<void> dispose();
 }