From fa05430e56df09b6a4c7a0d8efe910779b64bb7e Mon Sep 17 00:00:00 2001
From: J-P Nurmi <jpnurmi@ubuntu.com>
Date: Wed, 12 Jul 2023 18:50:50 +0200
Subject: [PATCH] feat: expose NavigationPage navigator observers

---
 .../navi_rail/yaru_navigation_page.dart        | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/lib/src/widgets/navi_rail/yaru_navigation_page.dart b/lib/src/widgets/navi_rail/yaru_navigation_page.dart
index 01e5583e0..45cc3cd22 100644
--- a/lib/src/widgets/navi_rail/yaru_navigation_page.dart
+++ b/lib/src/widgets/navi_rail/yaru_navigation_page.dart
@@ -28,6 +28,7 @@ class YaruNavigationPage extends StatefulWidget {
     this.leading,
     this.trailing,
     this.navigatorKey,
+    this.navigatorObservers = const <NavigatorObserver>[],
     this.initialRoute,
     this.onGenerateRoute,
     this.onUnknownRoute,
@@ -67,13 +68,28 @@ class YaruNavigationPage extends StatefulWidget {
   /// A key to use when building the [Navigator] widget.
   final GlobalKey<NavigatorState>? navigatorKey;
 
+  /// A list of observers for the [Navigator] widget.
+  ///
+  /// See also:
+  ///  * [Navigator.observers]
+  final List<NavigatorObserver> navigatorObservers;
+
   /// The route name for the initial route.
+  ///
+  /// See also:
+  ///  * [Navigator.initialRoute]
   final String? initialRoute;
 
   /// Called to generate a route for a given [RouteSettings].
+  ///
+  /// See also:
+  ///  * [Navigator.onGenerateRoute]
   final RouteFactory? onGenerateRoute;
 
   /// Called when [onGenerateRoute] fails to generate a route.
+  ///
+  /// See also:
+  ///  * [Navigator.onUnknownRoute]
   final RouteFactory? onUnknownRoute;
 
   @override
@@ -203,7 +219,7 @@ class _YaruNavigationPageState extends State<YaruNavigationPage> {
           onGenerateRoute: widget.onGenerateRoute,
           onUnknownRoute: widget.onUnknownRoute,
           onPopPage: (route, result) => route.didPop(result),
-          observers: [HeroController()],
+          observers: [...widget.navigatorObservers, HeroController()],
         ),
       ),
     );