49 lines
1.2 KiB
Dart
49 lines
1.2 KiB
Dart
// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
|
|
// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
|
|
//
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
|
|
import 'package:material_ui/material_ui.dart';
|
|
|
|
class ViewModelBuilder<T extends ValueNotifier> extends StatefulWidget {
|
|
final T Function() create;
|
|
final Widget Function(BuildContext context, T viewModel, Widget? child)
|
|
builder;
|
|
final Widget? child;
|
|
const ViewModelBuilder({
|
|
super.key,
|
|
required this.create,
|
|
required this.builder,
|
|
this.child,
|
|
});
|
|
|
|
@override
|
|
State<ViewModelBuilder<T>> createState() => _ViewModelBuilderState<T>();
|
|
}
|
|
|
|
class _ViewModelBuilderState<T extends ValueNotifier>
|
|
extends State<ViewModelBuilder<T>> {
|
|
late final T _viewModel;
|
|
|
|
@override
|
|
void initState() {
|
|
_viewModel = widget.create();
|
|
super.initState();
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_viewModel.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ValueListenableBuilder(
|
|
valueListenable: _viewModel,
|
|
builder: (context, value, child) =>
|
|
widget.builder.call(context, _viewModel, child),
|
|
);
|
|
}
|
|
}
|