init

lib/app_scope.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+
+import 'inbox.dart';
+import 'session.dart';
+
+class AppScope extends InheritedWidget {
+  const AppScope({
+    super.key,
+    required this.session,
+    required this.inbox,
+    required this.routeObserver,
+    required super.child,
+  });
+
+  final SessionController session;
+  final InboxController inbox;
+  final RouteObserver<ModalRoute<void>> routeObserver;
+
+  static AppScope of(BuildContext context) {
+    final scope = context.dependOnInheritedWidgetOfExactType<AppScope>();
+    assert(scope != null, 'AppScope is missing');
+    return scope!;
+  }
+
+  @override
+  bool updateShouldNotify(AppScope oldWidget) {
+    return session != oldWidget.session ||
+        inbox != oldWidget.inbox ||
+        routeObserver != oldWidget.routeObserver;
+  }
+}