From f52667ccea72a9eea3c4ab426bbe8c586ec3c8a8 Mon Sep 17 00:00:00 2001
From: Jonas Wanke <contact@jonas-wanke.com>
Date: Tue, 24 Jan 2023 16:29:56 +0100
Subject: [PATCH] Add CenterOrScroll

---
 lib/black_hole_flutter.dart                   |  2 +-
 .../{expand_or_scroll.dart => or_scroll.dart} | 35 +++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 rename lib/src/widgets/{expand_or_scroll.dart => or_scroll.dart} (58%)

diff --git a/lib/black_hole_flutter.dart b/lib/black_hole_flutter.dart
index 96db06e..352247d 100644
--- a/lib/black_hole_flutter.dart
+++ b/lib/black_hole_flutter.dart
@@ -7,6 +7,6 @@ export 'src/navigation.dart';
 export 'src/render_object.dart';
 export 'src/size.dart';
 export 'src/widgets/buttons.dart';
-export 'src/widgets/expand_or_scroll.dart';
 export 'src/widgets/fill_or_wrap.dart';
+export 'src/widgets/or_scroll.dart';
 export 'src/widgets/title_and_subtitle.dart';
diff --git a/lib/src/widgets/expand_or_scroll.dart b/lib/src/widgets/or_scroll.dart
similarity index 58%
rename from lib/src/widgets/expand_or_scroll.dart
rename to lib/src/widgets/or_scroll.dart
index b1467e0..54473dd 100644
--- a/lib/src/widgets/expand_or_scroll.dart
+++ b/lib/src/widgets/or_scroll.dart
@@ -1,5 +1,40 @@
 import 'package:flutter/widgets.dart';
 
+/// Centers [child] if it's smaller than the parent and makes it scrollable
+/// along [scrollDirection] if it's taller.
+class CenterOrScroll extends StatelessWidget {
+  const CenterOrScroll({
+    super.key,
+    this.wrapInSafeArea = true,
+    this.padding = EdgeInsets.zero,
+    this.scrollDirection = Axis.vertical,
+    this.scrollController,
+    required this.child,
+  });
+
+  final bool wrapInSafeArea;
+  final EdgeInsets padding;
+  final Axis scrollDirection;
+  final ScrollController? scrollController;
+  final Widget child;
+
+  @override
+  Widget build(BuildContext context) {
+    var child = this.child;
+
+    if (wrapInSafeArea) child = SafeArea(child: child);
+
+    child = SingleChildScrollView(
+      padding: padding,
+      scrollDirection: scrollDirection,
+      controller: scrollController,
+      child: child,
+    );
+
+    return Center(child: _intrinsicAlongAxis(scrollDirection, child));
+  }
+}
+
 class ExpandOrScroll extends StatelessWidget {
   const ExpandOrScroll({
     super.key,