472 lines
16 KiB
Dart
472 lines
16 KiB
Dart
import 'package:cached_network_image/cached_network_image.dart';
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import 'package:esys_flutter_share/esys_flutter_share.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_hooks/flutter_hooks.dart';
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import 'package:intl/intl.dart';
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import 'package:lemmy_api_client/lemmy_api_client.dart';
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import 'package:url_launcher/url_launcher.dart' as ul;
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import '../hooks/stores.dart';
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import '../util/extensions/api.dart';
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import '../util/goto.dart';
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import '../util/text_color.dart';
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import '../widgets/badge.dart';
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import '../widgets/bottom_modal.dart';
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import '../widgets/fullscreenable_image.dart';
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import '../widgets/markdown_text.dart';
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import '../widgets/sortable_infinite_list.dart';
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import 'communities_list.dart';
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import 'users_list.dart';
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/// Displays posts, comments, and general info about the given instance
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class InstancePage extends HookWidget {
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final String instanceUrl;
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final Future<FullSiteView> siteFuture;
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final Future<List<CommunityView>> communitiesFuture;
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void _share() =>
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Share.text('Share instance', 'https://$instanceUrl', 'text/plain');
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InstancePage({@required this.instanceUrl})
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: assert(instanceUrl != null),
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siteFuture = LemmyApi(instanceUrl).v1.getSite(),
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communitiesFuture =
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LemmyApi(instanceUrl).v1.listCommunities(sort: SortType.hot);
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final siteSnap = useFuture(siteFuture);
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final colorOnCard = textColorBasedOnBackground(theme.cardColor);
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final accStore = useAccountsStore();
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if (!siteSnap.hasData) {
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return Scaffold(
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appBar: AppBar(
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iconTheme: theme.iconTheme,
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brightness: theme.brightness,
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backgroundColor: theme.cardColor,
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elevation: 0,
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),
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body: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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if (siteSnap.hasError) ...[
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Icon(Icons.error),
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Padding(
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padding: const EdgeInsets.all(8),
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child: Text('ERROR: ${siteSnap.error}'),
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)
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] else
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CircularProgressIndicator(semanticsLabel: 'loading')
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],
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),
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),
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);
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}
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final site = siteSnap.data;
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void _openMoreMenu(BuildContext c) {
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showModalBottomSheet(
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backgroundColor: Colors.transparent,
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context: c,
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builder: (context) => BottomModal(
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child: Column(
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children: [
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ListTile(
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leading: Icon(Icons.open_in_browser),
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title: Text('Open in browser'),
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onTap: () async => await ul.canLaunch('https://$instanceUrl')
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? ul.launch('https://$instanceUrl')
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: Scaffold.of(context).showSnackBar(
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SnackBar(content: Text("can't open in browser"))),
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),
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ListTile(
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leading: Icon(Icons.info_outline),
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title: Text('Nerd stuff'),
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onTap: () {
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showDialog(
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context: context,
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child: SimpleDialog(
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contentPadding: const EdgeInsets.symmetric(
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horizontal: 20,
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vertical: 15,
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),
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children: [
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Table(
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children: [
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TableRow(children: [
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Text('url:'),
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Text(instanceUrl),
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]),
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TableRow(children: [
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Text('creator:'),
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Text('@${site.site.creatorName}')
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]),
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TableRow(children: [
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Text('version:'),
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Text(site.version),
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]),
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TableRow(children: [
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Text('enableDownvotes:'),
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Text(site.site.enableDownvotes.toString()),
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]),
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TableRow(children: [
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Text('enableNsfw:'),
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Text(site.site.enableNsfw.toString()),
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]),
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TableRow(children: [
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Text('published:'),
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Text(DateFormat.yMMMMd()
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.format(site.site.published)),
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]),
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TableRow(children: [
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Text('updated:'),
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Text(DateFormat.yMMMMd()
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.format(site.site.updated)),
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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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),
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);
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}
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return Scaffold(
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body: DefaultTabController(
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length: 3,
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child: NestedScrollView(
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headerSliverBuilder: (context, innerBoxIsScrolled) => <Widget>[
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SliverAppBar(
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brightness: theme.brightness,
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expandedHeight: 200,
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floating: false,
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pinned: true,
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elevation: 0,
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backgroundColor: theme.cardColor,
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iconTheme: theme.iconTheme,
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title: Text(
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site.site.name,
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style: TextStyle(color: colorOnCard),
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),
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actions: [
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IconButton(icon: Icon(Icons.share), onPressed: _share),
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IconButton(
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icon: Icon(Icons.more_vert),
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onPressed: () => _openMoreMenu(context)),
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],
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flexibleSpace: FlexibleSpaceBar(
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background: Stack(children: [
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if (site.site.banner != null)
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FullscreenableImage(
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url: site.site.banner,
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child: CachedNetworkImage(
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imageUrl: site.site.banner,
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errorWidget: (_, __, ___) => SizedBox.shrink(),
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),
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),
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SafeArea(
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child: Center(
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child: Column(
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children: [
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Padding(
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padding: const EdgeInsets.only(top: 40),
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child: FullscreenableImage(
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url: site.site.icon,
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child: CachedNetworkImage(
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width: 100,
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height: 100,
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imageUrl: site.site.icon,
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errorWidget: (_, __, ___) =>
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Icon(Icons.warning),
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),
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),
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),
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Text(site.site.name,
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style: theme.textTheme.headline6),
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Text(instanceUrl, style: theme.textTheme.caption)
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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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SliverPersistentHeader(
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delegate: _SliverAppBarDelegate(
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TabBar(
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labelColor: theme.textTheme.bodyText1.color,
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unselectedLabelColor: Colors.grey,
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tabs: [
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Tab(text: 'Posts'),
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Tab(text: 'Comments'),
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Tab(text: 'About'),
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],
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),
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),
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pinned: true,
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),
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],
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body: TabBarView(
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children: [
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InfinitePostList(
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fetcher: (page, batchSize, sort) =>
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LemmyApi(instanceUrl).v1.getPosts(
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// TODO: switch between all and subscribed
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type: PostListingType.all,
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sort: sort,
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limit: batchSize,
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page: page,
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auth: accStore.defaultTokenFor(instanceUrl)?.raw,
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)),
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InfiniteCommentList(
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fetcher: (page, batchSize, sort) =>
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LemmyApi(instanceUrl).v1.getComments(
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type: CommentListingType.all,
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sort: sort,
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limit: batchSize,
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page: page,
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auth: accStore.defaultTokenFor(instanceUrl)?.raw,
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)),
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_AboutTab(site,
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communitiesFuture: communitiesFuture,
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instanceUrl: instanceUrl),
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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 _SliverAppBarDelegate extends SliverPersistentHeaderDelegate {
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_SliverAppBarDelegate(this._tabBar);
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final TabBar _tabBar;
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@override
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double get minExtent => _tabBar.preferredSize.height;
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@override
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double get maxExtent => _tabBar.preferredSize.height;
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@override
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Widget build(
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BuildContext context, double shrinkOffset, bool overlapsContent) {
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final theme = Theme.of(context);
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return Container(child: _tabBar, color: theme.cardColor);
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}
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@override
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bool shouldRebuild(_SliverAppBarDelegate oldDelegate) => false;
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}
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class _AboutTab extends HookWidget {
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final FullSiteView site;
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final Future<List<CommunityView>> communitiesFuture;
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final String instanceUrl;
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const _AboutTab(this.site,
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{@required this.communitiesFuture, @required this.instanceUrl})
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: assert(communitiesFuture != null),
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assert(instanceUrl != null);
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void goToUser(int id) {
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print('GO TO USER $id');
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}
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void goToModLog() {
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print('GO TO MODLOG');
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}
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void goToBannedUsers(BuildContext c) {
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goTo(
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c,
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(_) => UsersListPage(
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users: site.banned.reversed.toList(), title: 'Banned users'),
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);
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final commSnap = useFuture(communitiesFuture);
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final accStore = useAccountsStore();
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void goToCommunities() {
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goTo(
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context,
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(_) => CommunitiesListPage(
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fetcher: (page, batchSize, sortType) =>
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LemmyApi(instanceUrl).v1.listCommunities(
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sort: sortType,
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limit: batchSize,
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page: page,
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auth: accStore.defaultTokenFor(instanceUrl)?.raw,
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),
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title: 'Communities of ${site.site.name}',
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),
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);
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}
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return SingleChildScrollView(
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child: SafeArea(
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top: false,
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child: Column(
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children: [
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 15, vertical: 15),
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child: MarkdownText(
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site.site.description,
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instanceUrl: instanceUrl,
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),
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),
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_Divider(),
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SizedBox(
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height: 25,
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child: ListView(
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scrollDirection: Axis.horizontal,
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children: [
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SizedBox(width: 7),
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_Badge('X users online'),
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_Badge('${site.site.numberOfUsers} users'),
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_Badge('${site.site.numberOfCommunities} communities'),
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_Badge('${site.site.numberOfPosts} posts'),
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_Badge('${site.site.numberOfComments} comments'),
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SizedBox(width: 15),
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],
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),
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),
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_Divider(),
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ListTile(
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title: Center(
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child: Text(
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'Trending communities:',
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style: theme.textTheme.headline6.copyWith(fontSize: 18),
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),
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),
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),
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if (commSnap.hasData)
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...commSnap.data.getRange(0, 6).map((e) => ListTile(
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onTap: () =>
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goToCommunity.byId(context, e.instanceUrl, e.id),
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title: Text(e.name),
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leading: e.icon != null
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? CachedNetworkImage(
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height: 50,
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width: 50,
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imageUrl: e.icon,
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errorWidget: (_, __, ___) =>
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SizedBox(width: 50, height: 50),
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imageBuilder: (context, imageProvider) => Container(
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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image: DecorationImage(
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fit: BoxFit.cover,
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image: imageProvider,
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),
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),
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))
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: SizedBox(width: 50),
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))
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else if (commSnap.hasError)
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text("Can't load communities, ${commSnap.error}"),
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)
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else
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 10),
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child: CircularProgressIndicator(),
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),
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ListTile(
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title: Center(child: Text('See all')),
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onTap: goToCommunities,
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),
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_Divider(),
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ListTile(
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title: Center(
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child: Text(
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'Admins:',
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style: theme.textTheme.headline6.copyWith(fontSize: 18),
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),
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),
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),
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...site.admins.map((e) => ListTile(
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title: Text((e.preferredUsername == null ||
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e.preferredUsername.isEmpty)
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? '@${e.name}'
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: e.preferredUsername),
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subtitle: e.bio != null
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? MarkdownText(e.bio, instanceUrl: instanceUrl)
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: null,
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onTap: () => goToUser(e.id),
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leading: e.avatar != null
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? CachedNetworkImage(
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height: 50,
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width: 50,
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imageUrl: e.avatar,
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errorWidget: (_, __, ___) =>
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SizedBox(width: 50, height: 50),
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imageBuilder: (context, imageProvider) => Container(
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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image: DecorationImage(
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fit: BoxFit.cover, image: imageProvider),
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),
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))
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: SizedBox(width: 50),
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)),
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_Divider(),
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ListTile(
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title: Center(child: Text('Banned users')),
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onTap: () => goToBannedUsers(context),
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),
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ListTile(
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title: Center(child: Text('Modlog')),
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onTap: goToModLog,
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),
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SizedBox(height: 20),
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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 _Badge extends StatelessWidget {
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final String text;
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_Badge(this.text);
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Padding(
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padding: const EdgeInsets.only(left: 8),
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child: Badge(
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child: Text(
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text,
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style:
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TextStyle(color: textColorBasedOnBackground(theme.accentColor)),
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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 _Divider extends StatelessWidget {
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@override
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Widget build(BuildContext context) => Padding(
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padding: const EdgeInsets.symmetric(horizontal: 15, vertical: 10),
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child: Divider(),
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);
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}
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