aves/lib/widgets/common/app_bar_subtitle.dart

86 lines
2.6 KiB
Dart

import 'package:aves/model/source/collection_source.dart';
import 'package:aves/model/source/enums.dart';
import 'package:aves/model/source/events.dart';
import 'package:aves/model/source/source_state.dart';
import 'package:aves/theme/durations.dart';
import 'package:aves/widgets/common/extensions/build_context.dart';
import 'package:flutter/material.dart';
class SourceStateAwareAppBarTitle extends StatelessWidget {
final Widget title;
final CollectionSource source;
const SourceStateAwareAppBarTitle({
Key? key,
required this.title,
required this.source,
}) : super(key: key);
@override
Widget build(BuildContext context) {
return Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
title,
ValueListenableBuilder<SourceState>(
valueListenable: source.stateNotifier,
builder: (context, sourceState, child) {
return AnimatedSwitcher(
duration: Durations.appBarTitleAnimation,
transitionBuilder: (child, animation) => FadeTransition(
opacity: animation,
child: SizeTransition(
sizeFactor: animation,
child: child,
),
),
child: sourceState == SourceState.ready
? const SizedBox.shrink()
: SourceStateSubtitle(
source: source,
),
);
},
),
],
);
}
}
class SourceStateSubtitle extends StatelessWidget {
final CollectionSource source;
const SourceStateSubtitle({
Key? key,
required this.source,
}) : super(key: key);
@override
Widget build(BuildContext context) {
final sourceState = source.stateNotifier.value;
final subtitle = sourceState.getName(context.l10n);
if (subtitle == null) return const SizedBox();
final subtitleStyle = Theme.of(context).textTheme.caption!;
return Row(
mainAxisSize: MainAxisSize.min,
children: [
Text(subtitle, style: subtitleStyle),
ValueListenableBuilder<ProgressEvent>(
valueListenable: source.progressNotifier,
builder: (context, progress, snapshot) {
if (progress.total == 0 || sourceState == SourceState.locatingCountries) return const SizedBox();
return Padding(
padding: const EdgeInsetsDirectional.only(start: 8),
child: Text(
'${progress.done}/${progress.total}',
style: subtitleStyle.copyWith(color: Colors.white30),
),
);
},
),
],
);
}
}