Replaced callbacks onTokenExpiring and onTokenExpired by event types …

…OidcTokenExpiringEvent/OidcTokenExpiredEvent

packages/oidc_core/lib/src/managers/user_manager_base.dart

@@ -794,7 +794,9 @@ abstract class OidcUserManagerBase {
 
   @protected
   Future<void> handleTokenExpiring(OidcToken event) async {
-    settings.onTokenExpiring?.call(event);
+    eventsController.add(
+      OidcTokenExpiringEvent.now(currentToken: event)
+    );
 
     final refreshToken = event.refreshToken;
     if (refreshToken == null) {
@@ -836,7 +838,9 @@ abstract class OidcUserManagerBase {
 
   @protected
   void handleTokenExpired(OidcToken event) {
-    settings.onTokenExpired?.call(event);
+    eventsController.add(
+      OidcTokenExpiredEvent.now(currentToken: event),
+    );
 
     if (!settings.supportOfflineAuth) {
       forgetUser();

packages/oidc_core/lib/src/models/events/_exports.dart

@@ -1,2 +1,4 @@
 export 'event.dart';
 export 'pre_logout_event.dart';
+export 'token_expired_event.dart';
+export 'token_expiring_event.dart';

packages/oidc_core/lib/src/models/events/token_expired_event.dart

@@ -0,0 +1,18 @@
+import 'package:oidc_core/oidc_core.dart';
+
+/// An event that gets raised after a token expired.
+class OidcTokenExpiredEvent extends OidcEvent {
+  ///
+  const OidcTokenExpiredEvent({
+    required this.currentToken,
+    required super.at,
+  });
+
+  ///
+  OidcTokenExpiredEvent.now({
+    required this.currentToken,
+  }) : super.now();
+
+  /// The current token that is expired.
+  final OidcToken currentToken;
+}

packages/oidc_core/lib/src/models/events/token_expiring_event.dart

@@ -0,0 +1,18 @@
+import 'package:oidc_core/oidc_core.dart';
+
+/// An event that gets raised before a token expires.
+class OidcTokenExpiringEvent extends OidcEvent {
+  ///
+  const OidcTokenExpiringEvent({
+    required this.currentToken,
+    required super.at,
+  });
+
+  ///
+  OidcTokenExpiringEvent.now({
+    required this.currentToken,
+  }) : super.now();
+
+  /// The current token that is expiring.
+  final OidcToken currentToken;
+}

packages/oidc_core/lib/src/models/settings/user_manager_settings.dart

@@ -3,8 +3,6 @@ import 'package:oidc_core/oidc_core.dart';
 /// The callback used to determine the `expiring` duration.
 typedef OidcRefreshBeforeCallback = Duration? Function(OidcToken token);
 
-typedef OidcTokenCallback = void Function(OidcToken token);
-
 /// The default refreshBefore function, which refreshes 1 minute before the token expires.
 Duration? defaultRefreshBefore(OidcToken token) {
   return const Duration(minutes: 1);
@@ -37,8 +35,6 @@ class OidcUserManagerSettings {
     this.sessionManagementSettings = const OidcSessionManagementSettings(),
     this.getIdToken,
     this.supportOfflineAuth = false,
-    this.onTokenExpiring,
-    this.onTokenExpired,
   });
 
   /// The default scopes
@@ -131,12 +127,6 @@ class OidcUserManagerSettings {
 
   /// platform-specific options.
   final OidcPlatformSpecificOptions? options;
-
-  /// Callback that is called before the token expires.
-  final OidcTokenCallback? onTokenExpiring;
-
-  /// Callback that is called after the token expired.
-  final OidcTokenCallback? onTokenExpired;
 }
 
 ///