93 lines
2.7 KiB
Dart
93 lines
2.7 KiB
Dart
import 'package:aves/model/source/collection_source.dart';
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import 'package:aves/utils/durations.dart';
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import 'package:flutter/material.dart';
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class SourceStateAwareAppBarTitle extends StatelessWidget {
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final Widget title;
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final CollectionSource source;
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const SourceStateAwareAppBarTitle({
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Key key,
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@required this.title,
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@required this.source,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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title,
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ValueListenableBuilder<SourceState>(
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valueListenable: source.stateNotifier,
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builder: (context, sourceState, child) {
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return AnimatedSwitcher(
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duration: Durations.appBarTitleAnimation,
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transitionBuilder: (child, animation) => FadeTransition(
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opacity: animation,
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child: SizeTransition(
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sizeFactor: animation,
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child: child,
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),
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),
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child: sourceState == SourceState.ready
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? SizedBox.shrink()
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: SourceStateSubtitle(
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source: source,
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),
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);
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},
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),
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],
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);
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}
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}
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class SourceStateSubtitle extends StatelessWidget {
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final CollectionSource source;
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const SourceStateSubtitle({@required this.source});
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@override
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Widget build(BuildContext context) {
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String subtitle;
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switch (source.stateNotifier.value) {
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case SourceState.loading:
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subtitle = 'Loading';
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break;
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case SourceState.cataloguing:
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subtitle = 'Cataloguing';
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break;
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case SourceState.locating:
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subtitle = 'Locating';
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break;
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case SourceState.ready:
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default:
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break;
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}
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final subtitleStyle = Theme.of(context).textTheme.caption;
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return subtitle == null
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? SizedBox.shrink()
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: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(subtitle, style: subtitleStyle),
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StreamBuilder<ProgressEvent>(
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stream: source.progressStream,
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builder: (context, snapshot) {
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if (snapshot.hasError || !snapshot.hasData) return SizedBox.shrink();
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final progress = snapshot.data;
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return Padding(
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padding: EdgeInsetsDirectional.only(start: 8),
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child: Text(
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'${progress.done}/${progress.total}',
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style: subtitleStyle.copyWith(color: Colors.white30),
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),
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);
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},
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),
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],
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);
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}
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}
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