288 lines
9.7 KiB
Dart
288 lines
9.7 KiB
Dart
import 'dart:async';
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import 'package:cached_network_image/cached_network_image.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/lemmy_api_client.dart';
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import '../hooks/delayed_loading.dart';
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import '../hooks/memo_future.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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/// 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 = useTextEditingController();
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useValueListenable(filterController);
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final accountsStore = useAccountsStore();
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final amountOfDisplayInstances =
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useMemoized(() => accountsStore.loggedInInstances.length);
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final isCollapsed = useState(List.filled(amountOfDisplayInstances, false));
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// TODO: rebuild when instances/accounts change
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final instancesSnap = useMemoFuture(() {
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final futures = accountsStore.loggedInInstances
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.map(
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(instanceHost) =>
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LemmyApi(instanceHost).v1.getSite().then((e) => e.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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final communitiesSnap = useMemoFuture(() {
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final futures = accountsStore.loggedInInstances
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.map(
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(instanceHost) => LemmyApi(instanceHost)
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.v1
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.getUserDetails(
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sort: SortType.active,
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savedOnly: false,
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userId:
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accountsStore.defaultTokenFor(instanceHost).payload.id,
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)
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.then((e) => e.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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if (communitiesSnap.hasError || instancesSnap.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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communitiesSnap.error?.toString() ??
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instancesSnap.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 (!communitiesSnap.hasData || !instancesSnap.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(),
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),
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);
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}
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final instances = instancesSnap.data;
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final communities = communitiesSnap.data
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..forEach(
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(e) => e.sort((a, b) => a.communityName.compareTo(b.communityName)));
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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.communityName).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.communityName == 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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isDense: true,
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border: const OutlineInputBorder(),
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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: 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: () => goToInstance(
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context, accountsStore.loggedInInstances.elementAt(i)),
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onLongPress: () => toggleCollapse(i),
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leading: instances[i].icon != null
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? CachedNetworkImage(
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height: 50,
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width: 50,
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imageUrl: instances[i].icon,
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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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errorWidget: (_, __, ___) =>
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const SizedBox(width: 50),
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)
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: const SizedBox(width: 50),
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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.elementAt(i),
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comm.communityId),
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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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if (comm.communityIcon != null)
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CachedNetworkImage(
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height: 30,
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width: 30,
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imageUrl: comm.communityIcon,
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imageBuilder: (context, imageProvider) =>
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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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errorWidget: (_, __, ___) =>
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const SizedBox(width: 30),
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)
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else
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const SizedBox(width: 30),
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const SizedBox(width: 10),
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Text(
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'''!${comm.communityName}${comm.isLocal ? '' : '@${comm.originInstanceHost}'}''',
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),
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],
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),
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trailing: _CommunitySubscribeToggle(
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instanceHost: comm.instanceHost,
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communityId: comm.communityId,
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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, @required this.communityId})
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: assert(instanceHost != null),
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assert(communityId != null);
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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 accountsStore = useAccountsStore();
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handleTap() async {
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delayed.start();
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try {
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await LemmyApi(instanceHost).v1.followCommunity(
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communityId: communityId,
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follow: !subbed.value,
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auth: accountsStore.defaultTokenFor(instanceHost).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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Scaffold.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 ? () {} : 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.accentColor : null,
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border: Border.all(color: theme.accentColor),
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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, height: 20, child: CircularProgressIndicator())
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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.accentColor)
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: theme.accentColor,
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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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