packages/wyatt_bloc_layout/example/lib/components/theme_components.dart

@@ -18,7 +18,7 @@ class CustomAppBar extends AppBarComponent {
       );
 
   @override
-  AppBarComponent? configure(
+  AppBarComponent configure(
           {String? title, Widget? leading, List<Widget>? actions}) =>
       CustomAppBar(
         title: title ?? this.title,
@@ -44,7 +44,7 @@ class CustomBottomBar extends BottomNavigationBarComponent {
       );
 
   @override
-  BottomNavigationBarComponent? configure(
+  BottomNavigationBarComponent configure(
           {void Function(BuildContext p1, int p2)? onTap,
           int currentIndex = 0}) =>
       this;
@@ -58,7 +58,7 @@ class CustomLoadingWidget extends LoadingWidgetComponent {
       Center(child: CircularProgressIndicator(color: color));
 
   @override
-  LoadingWidgetComponent? configure({Color? color}) => CustomLoadingWidget(
+  LoadingWidgetComponent configure({Color? color}) => CustomLoadingWidget(
         color: color ?? this.color,
       );
 }
@@ -73,7 +73,7 @@ class CustomErrorWidget extends ErrorWidgetComponent {
       );
 
   @override
-  ErrorWidgetComponent? configure({String? error}) => CustomErrorWidget(
+  ErrorWidgetComponent configure({String? error}) => CustomErrorWidget(
         error: error ?? this.error,
       );
 }

packages/wyatt_bloc_layout/lib/src/presentation/consumers/crud_cubit_consumer_screen_bases.dart

@@ -27,11 +27,10 @@ abstract class CrudCubitConsumerScreenBase<
   const CrudCubitConsumerScreenBase({super.key});
 
   Widget errorBuilder(BuildContext context, CrudError state) =>
-      context.components.errorWidget?.configure(error: state.message) ??
+      context.components.errorWidget.configure(error: state.message);
-      const SizedBox.shrink();
 
   Widget loadingBuilder(BuildContext context, CrudLoading state) =>
-      context.components.loadingWidget ?? const SizedBox.shrink();
+      context.components.loadingWidget;
 
   Widget initialBuilder(BuildContext context, CrudInitial state) =>
       const SizedBox.shrink();

packages/wyatt_bloc_layout/lib/src/presentation/screens/crud_cubit_screen_base.dart

@@ -16,17 +16,17 @@
 
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart' as bloc_base;
+import 'package:wyatt_bloc_helper/wyatt_bloc_helper.dart';
 import 'package:wyatt_bloc_layout/wyatt_bloc_layout.dart';
 
 abstract class CrudCubitScreenBase<Cubit extends bloc_base.Cubit<CrudState>,
     SuccessState extends CrudSuccess> extends CubitScreen<Cubit, CrudState> {
   const CrudCubitScreenBase();
   Widget errorBuilder(BuildContext context, CrudError state) =>
-      context.components.errorWidget?.configure(error: state.message) ??
+      context.components.errorWidget;
-      const SizedBox.shrink();
 
   Widget loadingBuilder(BuildContext context, CrudLoading state) =>
-      context.components.loadingWidget ?? const SizedBox.shrink();
+      context.components.loadingWidget;
 
   Widget initialBuilder(BuildContext context, CrudInitial state) =>
       const SizedBox.shrink();

packages/wyatt_ui_components/example/lib/components/custom_app_bar.dart

@@ -10,7 +10,7 @@ class CustomAppBar extends AppBarComponent {
       );
 
   @override
-  AppBarComponent? configure(
+  AppBarComponent configure(
           {String? title, Widget? leading, List<Widget>? actions}) =>
       CustomAppBar(
         title: title ?? this.title,

packages/wyatt_ui_components/example/lib/components/custom_bottom_bar.dart

@@ -29,7 +29,7 @@ class CustomBottomNavigationBar extends BottomNavigationBarComponent {
       );
 
   @override
-  CustomBottomNavigationBar? configure({
+  CustomBottomNavigationBar configure({
     void Function(BuildContext, int)? onTap,
     int currentIndex = 0,
   }) =>

packages/wyatt_ui_components/example/lib/components/custom_error_widget.dart

@@ -11,6 +11,6 @@ class CustomErrorWidget extends ErrorWidgetComponent {
       );
 
   @override
-  ErrorWidgetComponent? configure({String? error}) =>
+  ErrorWidgetComponent configure({String? error}) =>
       CustomErrorWidget(error: error ?? this.error);
 }

packages/wyatt_ui_components/example/lib/components/custom_loading_widget.dart

@@ -12,7 +12,7 @@ class CustomLoadingWidget extends LoadingWidgetComponent {
       );
 
   @override
-  CustomLoadingWidget? configure({Color? color}) => CustomLoadingWidget(
+  CustomLoadingWidget configure({Color? color}) => CustomLoadingWidget(
         color: color ?? this.color,
       );
 }

packages/wyatt_ui_components/example/lib/main.dart

@@ -50,23 +50,20 @@ class Home extends StatelessWidget {
   Widget build(BuildContext context) => Scaffold(
         appBar: PreferredSize(
           preferredSize: const Size.fromHeight(60),
-          child: context.components.appBar?.configure(title: 'Example title') ??
+          child: context.components.appBar.configure(title: 'Example title'),
-              const SizedBox.shrink(),
         ),
         body: Column(
           children: [
             Expanded(
               child: context.components.errorWidget
-                      ?.configure(error: 'Example erreur') ??
+                  .configure(error: 'Example erreur'),
-                  const SizedBox.shrink(),
             ),
             const SizedBox(
               height: 10,
             ),
             Expanded(
               child: context.components.loadingWidget
-                      ?.configure(color: Colors.green) ??
+                  .configure(color: Colors.green),
-                  const SizedBox.shrink(),
             ),
           ],
         ),

packages/wyatt_ui_components/lib/src/domain/entities/component.dart

@@ -19,5 +19,5 @@ import 'package:flutter/material.dart';
 abstract class Component extends StatelessWidget {
   const Component({super.key});
 
-  Component? configure();
+  Component configure();
 }

packages/wyatt_ui_components/lib/src/domain/entities/components.dart

@@ -29,7 +29,7 @@ abstract class AppBarComponent extends Component {
   });
 
   @override
-  AppBarComponent? configure({
+  AppBarComponent configure({
     String? title,
     Widget? leading,
     List<Widget>? actions,
@@ -46,7 +46,7 @@ abstract class BottomNavigationBarComponent extends Component {
   });
 
   @override
-  BottomNavigationBarComponent? configure({
+  BottomNavigationBarComponent configure({
     void Function(BuildContext, int)? onTap,
     int currentIndex = 0,
   });
@@ -57,7 +57,7 @@ abstract class ErrorWidgetComponent extends Component {
   const ErrorWidgetComponent({required this.error, super.key});
 
   @override
-  ErrorWidgetComponent? configure({String? error});
+  ErrorWidgetComponent configure({String? error});
 }
 
 abstract class LoadingWidgetComponent extends Component {
@@ -65,5 +65,5 @@ abstract class LoadingWidgetComponent extends Component {
   const LoadingWidgetComponent({required this.color, super.key});
 
   @override
-  LoadingWidgetComponent? configure({Color? color});
+  LoadingWidgetComponent configure({Color? color});
 }

packages/wyatt_ui_components/lib/src/features/component_theme_data.dart

@@ -17,15 +17,15 @@
 import 'package:wyatt_ui_components/src/domain/entities/components.dart';
 
 class ComponentThemeData {
-  final AppBarComponent? appBar;
+  final AppBarComponent appBar;
-  final BottomNavigationBarComponent? bottomNavigationBar;
+  final BottomNavigationBarComponent bottomNavigationBar;
-  final ErrorWidgetComponent? errorWidget;
+  final ErrorWidgetComponent errorWidget;
-  final LoadingWidgetComponent? loadingWidget;
+  final LoadingWidgetComponent loadingWidget;
 
   const ComponentThemeData.raw({
-    this.appBar,
+    required this.appBar,
-    this.bottomNavigationBar,
+    required this.bottomNavigationBar,
-    this.errorWidget,
+    required this.errorWidget,
-    this.loadingWidget,
+    required this.loadingWidget,
   });
 }

packages/wyatt_ui_layout/example/lib/components/custom_app_bar.dart

@@ -13,7 +13,7 @@ class CustomAppBar extends AppBarComponent {
       );
 
   @override
-  AppBarComponent? configure({
+  AppBarComponent configure({
     String? title,
     Widget? leading,
     List<Widget>? actions,

packages/wyatt_ui_layout/example/lib/components/custom_bottom_navigation_bar.dart

@@ -29,7 +29,7 @@ class CustomBottomNavigationBar extends BottomNavigationBarComponent {
       );
 
   @override
-  CustomBottomNavigationBar? configure({
+  CustomBottomNavigationBar configure({
     void Function(BuildContext, int)? onTap,
     int currentIndex = 0,
   }) =>

packages/wyatt_ui_layout/lib/src/presentation/layouts/app_bar_layout.dart

@@ -31,8 +31,7 @@ class AppBarLayout extends Layout {
   Widget build(BuildContext context) => Scaffold(
         appBar: PreferredSize(
           preferredSize: const Size.fromHeight(60),
-          child: context.components.appBar?.configure(title: title) ??
+          child: context.components.appBar.configure(title: title),
-              const SizedBox.shrink(),
         ),
         body: body,
       );

packages/wyatt_ui_layout/lib/src/presentation/layouts/bottom_navigation_bar_layout.dart

@@ -14,7 +14,7 @@ class BottomNavigationBarLayout extends Layout {
   @override
   Widget build(BuildContext context) => Scaffold(
         body: body,
-        bottomNavigationBar: context.components.bottomNavigationBar?.configure(
+        bottomNavigationBar: context.components.bottomNavigationBar.configure(
           currentIndex: currentIndex,
         ),
       );

packages/wyatt_ui_layout/lib/src/presentation/layouts/frame_layout.dart

@@ -34,11 +34,10 @@ class FrameLayout extends Layout {
   Widget build(BuildContext context) => Scaffold(
         appBar: PreferredSize(
           preferredSize: const Size.fromHeight(60),
-          child: context.components.appBar?.configure(title: title) ??
+          child: context.components.appBar.configure(title: title),
-              const SizedBox.shrink(),
         ),
         body: body,
-        bottomNavigationBar: context.components.bottomNavigationBar?.configure(
+        bottomNavigationBar: context.components.bottomNavigationBar.configure(
           currentIndex: currentIndex,
         ),
       );