aves/lib/widgets/common/app_bar_subtitle.dart
Thibault Deckers 0dbb46d9bb const galore
2021-06-08 11:05:23 +09:00

95 lines
2.9 KiB
Dart

import 'package:aves/model/source/collection_source.dart';
import 'package:aves/model/source/enums.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({required this.source});
@override
Widget build(BuildContext context) {
String? subtitle;
switch (source.stateNotifier.value) {
case SourceState.loading:
subtitle = context.l10n.sourceStateLoading;
break;
case SourceState.cataloguing:
subtitle = context.l10n.sourceStateCataloguing;
break;
case SourceState.locating:
subtitle = context.l10n.sourceStateLocating;
break;
case SourceState.ready:
default:
break;
}
final subtitleStyle = Theme.of(context).textTheme.caption;
return subtitle == null
? const SizedBox.shrink()
: Row(
mainAxisSize: MainAxisSize.min,
children: [
Text(subtitle, style: subtitleStyle),
StreamBuilder<ProgressEvent>(
stream: source.progressStream,
builder: (context, snapshot) {
if (snapshot.hasError || !snapshot.hasData) return const SizedBox.shrink();
final progress = snapshot.data!;
return Padding(
padding: const EdgeInsetsDirectional.only(start: 8),
child: Text(
'${progress.done}/${progress.total}',
style: subtitleStyle!.copyWith(color: Colors.white30),
),
);
},
),
],
);
}
}