302 lines
9.9 KiB
Dart
302 lines
9.9 KiB
Dart
import 'dart:async';
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import 'package:collection/collection.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:fuzzy/fuzzy.dart';
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import 'package:lemmy_api_client/v3.dart';
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import '../hooks/delayed_loading.dart';
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import '../hooks/logged_in_action.dart';
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import '../hooks/refreshable.dart';
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import '../hooks/stores.dart';
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import '../util/extensions/api.dart';
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import '../util/extensions/iterators.dart';
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import '../util/goto.dart';
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import '../util/text_color.dart';
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import '../widgets/avatar.dart';
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import '../widgets/pull_to_refresh.dart';
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import 'instance/instance.dart';
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/// List of subscribed communities per instance
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class CommunitiesTab extends HookWidget {
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const CommunitiesTab();
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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 filterController = useListenable(useTextEditingController());
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final accountsStore = useAccountsStore();
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final amountOfDisplayInstances = accountsStore.loggedInInstances.length;
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final isCollapsed = useState(List.filled(amountOfDisplayInstances, false));
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if (amountOfDisplayInstances != isCollapsed.value.length) {
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isCollapsed.value = List.filled(amountOfDisplayInstances, false);
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}
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getInstances() {
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final futures = accountsStore.loggedInInstances
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.map(
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(instanceHost) => LemmyApiV3(instanceHost)
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.run(const GetSite())
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.then((e) => e.siteView!.site),
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)
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.toList();
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return Future.wait(futures);
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}
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getCommunities() {
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final futures = accountsStore.loggedInInstances
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.map(
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(instanceHost) => LemmyApiV3(instanceHost)
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.run(GetSite(
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auth: accountsStore.defaultUserDataFor(instanceHost)!.jwt.raw,
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))
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.then((e) => e.myUser!.follows),
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)
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.toList();
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return Future.wait(futures);
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}
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final loggedInAccounts = accountsStore.loggedInInstances
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.map((instanceHost) =>
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'$instanceHost${accountsStore.defaultUsernameFor(instanceHost)}')
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.toList();
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final instancesRefreshable = useRefreshable(getInstances, loggedInAccounts);
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final communitiesRefreshable =
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useRefreshable(getCommunities, loggedInAccounts);
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if (communitiesRefreshable.snapshot.hasError ||
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instancesRefreshable.snapshot.hasError) {
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return Scaffold(
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appBar: AppBar(),
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body: Center(
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child: Row(
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children: [
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const Icon(Icons.error),
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Padding(
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padding: const EdgeInsets.all(8),
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child: Text(
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communitiesRefreshable.snapshot.error?.toString() ??
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instancesRefreshable.snapshot.error!.toString(),
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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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} else if (!communitiesRefreshable.snapshot.hasData ||
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!instancesRefreshable.snapshot.hasData) {
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return Scaffold(
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appBar: AppBar(),
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body: const Center(
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child: CircularProgressIndicator.adaptive(),
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),
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);
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}
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refresh() async {
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try {
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await Future.wait([
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instancesRefreshable.refresh(),
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communitiesRefreshable.refresh(),
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]);
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} catch (e) {
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ScaffoldMessenger.of(context)
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.showSnackBar(SnackBar(content: Text(e.toString())));
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}
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}
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final instances = instancesRefreshable.snapshot.data!;
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final communities = communitiesRefreshable.snapshot.data!
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.map(
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(e) =>
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e.sorted((a, b) => a.community.name.compareTo(b.community.name)),
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)
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.toList();
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final filterIcon = () {
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if (filterController.text.isEmpty) {
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return const Icon(Icons.filter_list);
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}
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return IconButton(
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onPressed: () {
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filterController.clear();
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primaryFocus?.unfocus();
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},
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icon: const Icon(Icons.clear),
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);
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}();
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filterCommunities(List<CommunityFollowerView> comm) {
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final matches = Fuzzy(
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comm.map((e) => e.community.name).toList(),
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options: FuzzyOptions(threshold: 0.5),
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).search(filterController.text).map((e) => e.item);
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return matches
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.map((match) => comm.firstWhere((e) => e.community.name == match));
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}
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toggleCollapse(int i) => isCollapsed.value =
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isCollapsed.value.mapWithIndex((e, j) => j == i ? !e : e).toList();
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return Scaffold(
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appBar: AppBar(
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actions: [
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IconButton(
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icon: const Icon(Icons.style),
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onPressed: () {}, // TODO: change styles?
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),
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],
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title: TextField(
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controller: filterController,
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textAlign: TextAlign.center,
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decoration: InputDecoration(
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suffixIcon: filterIcon,
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hintText: 'Filter', // TODO: hint with an filter icon
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),
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),
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),
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body: PullToRefresh(
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onRefresh: refresh,
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child: amountOfDisplayInstances == 0
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? const Center(
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child: Text('You are not logged in to any instances'),
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)
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: ListView(
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children: [
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for (var i = 0; i < amountOfDisplayInstances; i++)
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Column(
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children: [
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ListTile(
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onTap: () => Navigator.of(context).push(
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InstancePage.route(
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accountsStore.loggedInInstances.elementAt(i),
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),
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),
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onLongPress: () => toggleCollapse(i),
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leading: Avatar(
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url: instances[i].icon,
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alwaysShow: true,
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),
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title: Text(
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instances[i].name,
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style: theme.textTheme.headline6,
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),
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trailing: IconButton(
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icon: Icon(isCollapsed.value[i]
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? Icons.keyboard_arrow_up
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: Icons.keyboard_arrow_down),
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onPressed: () => toggleCollapse(i),
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),
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),
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if (!isCollapsed.value[i])
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for (final comm in filterCommunities(communities[i]))
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Padding(
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padding: const EdgeInsets.only(left: 17),
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child: ListTile(
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onTap: () => goToCommunity.byId(
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context,
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accountsStore.loggedInInstances
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.elementAt(i),
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comm.community.id),
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dense: true,
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leading: VerticalDivider(
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color: theme.hintColor,
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),
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title: Row(
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children: [
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Avatar(
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radius: 15,
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url: comm.community.icon,
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alwaysShow: true,
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),
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const SizedBox(width: 10),
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Text(comm.community.originPreferredName),
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],
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),
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trailing: _CommunitySubscribeToggle(
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key: ValueKey(comm.community.id),
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instanceHost: comm.instanceHost,
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communityId: comm.community.id,
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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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class _CommunitySubscribeToggle extends HookWidget {
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final int communityId;
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final String instanceHost;
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const _CommunitySubscribeToggle({
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required this.instanceHost,
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required this.communityId,
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super.key,
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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 subbed = useState(true);
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final delayed = useDelayedLoading();
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final loggedInAction = useLoggedInAction(instanceHost);
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handleTap(Jwt token) async {
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delayed.start();
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try {
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await LemmyApiV3(instanceHost).run(FollowCommunity(
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communityId: communityId,
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follow: !subbed.value,
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auth: token.raw,
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));
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subbed.value = !subbed.value;
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} on Exception catch (err) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content: Text('Failed to ${subbed.value ? 'un' : ''}follow: $err'),
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));
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}
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delayed.cancel();
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}
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return InkWell(
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onTap: delayed.pending ? () {} : loggedInAction(handleTap),
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child: Container(
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decoration: delayed.loading
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? null
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: BoxDecoration(
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color: subbed.value ? theme.colorScheme.secondary : null,
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border: Border.all(color: theme.colorScheme.secondary),
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borderRadius: BorderRadius.circular(7),
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),
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child: delayed.loading
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? const SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator.adaptive())
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: Icon(
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subbed.value ? Icons.done : Icons.add,
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color: subbed.value
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? textColorBasedOnBackground(theme.colorScheme.secondary)
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: theme.colorScheme.secondary,
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size: 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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