router_outlet.dart
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import 'package:flutter/material.dart';
import '../../../get.dart';
import 'get_router_delegate.dart';
class RouterOutlet<TDelegate extends RouterDelegate<T>, T extends Object>
extends StatefulWidget {
final TDelegate routerDelegate;
final Widget Function(
BuildContext context,
TDelegate delegate,
T? currentRoute,
) builder;
//keys
RouterOutlet.builder({
TDelegate? delegate,
required this.builder,
}) : routerDelegate = delegate ?? Get.delegate<TDelegate, T>()!,
super();
RouterOutlet({
TDelegate? delegate,
required List<GetPage> Function(T currentNavStack) pickPages,
required Widget Function(
BuildContext context,
TDelegate,
GetPage? page,
)
pageBuilder,
}) : this.builder(
builder: (context, rDelegate, currentConfig) {
final picked =
currentConfig == null ? <GetPage>[] : pickPages(currentConfig);
if (picked.length == 0) {
return pageBuilder(context, rDelegate, null);
}
return pageBuilder(context, rDelegate, picked.last);
},
delegate: delegate,
);
@override
_RouterOutletState<TDelegate, T> createState() =>
_RouterOutletState<TDelegate, T>();
}
class _RouterOutletState<TDelegate extends RouterDelegate<T>, T extends Object>
extends State<RouterOutlet<TDelegate, T>> {
TDelegate get delegate => widget.routerDelegate;
@override
void initState() {
super.initState();
_getCurrentRoute();
delegate.addListener(onRouterDelegateChanged);
}
@override
void dispose() {
delegate.removeListener(onRouterDelegateChanged);
super.dispose();
}
T? currentRoute;
void _getCurrentRoute() {
currentRoute = delegate.currentConfiguration;
}
void onRouterDelegateChanged() {
setState(_getCurrentRoute);
}
@override
Widget build(BuildContext context) {
return widget.builder(context, delegate, currentRoute);
}
}
class GetRouterOutlet extends RouterOutlet<GetDelegate, GetNavConfig> {
GetRouterOutlet.builder({
required Widget Function(
BuildContext context,
GetDelegate delegate,
GetNavConfig? currentRoute,
)
builder,
GetDelegate? routerDelegate,
}) : super.builder(
builder: builder,
delegate: routerDelegate,
);
GetRouterOutlet({
Widget Function(GetDelegate delegate)? emptyWidget,
GetPage Function(GetDelegate delegate)? emptyPage,
required List<GetPage> Function(GetNavConfig currentNavStack) pickPages,
bool Function(Route<dynamic>, dynamic)? onPopPage,
required String name,
}) : assert(
(emptyPage == null && emptyWidget == null) ||
(emptyPage != null && emptyWidget == null) ||
(emptyPage == null && emptyWidget != null),
'Either use emptyPage or emptyWidget'),
super(
pageBuilder: (context, rDelegate, page) {
var pageRes = page ?? emptyPage?.call(rDelegate);
if (pageRes != null) {
return GetNavigator(
onPopPage: onPopPage ??
(a, c) {
return true;
},
pages: [pageRes],
name: name,
);
}
return (emptyWidget?.call(rDelegate) ?? SizedBox.shrink());
},
pickPages: pickPages,
delegate: Get.rootDelegate,
);
}
extension PagesListExt on List<GetPage> {
List<GetPage> pickAtRoute(String route) {
return skipWhile((value) => value.name != route).toList();
}
List<GetPage> pickAfterRoute(String route) {
return skipWhile((value) => value.name != route).skip(1).toList();
}
}