595 lines
19 KiB
Dart
595 lines
19 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/gestures.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: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/delayed_loading.dart';
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import '../hooks/logged_in_action.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/goto.dart';
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import '../util/intl.dart';
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import '../util/more_icon.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/info_table_popup.dart';
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import '../widgets/markdown_text.dart';
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import '../widgets/sortable_infinite_list.dart';
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/// Displays posts, comments, and general info about the given community
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class CommunityPage extends HookWidget {
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final CommunityView _community;
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final String instanceHost;
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final String communityName;
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final int communityId;
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CommunityPage.fromName({
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@required this.communityName,
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@required this.instanceHost,
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}) : assert(communityName != null),
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assert(instanceHost != null),
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communityId = null,
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_community = null;
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CommunityPage.fromId({
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@required this.communityId,
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@required this.instanceHost,
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}) : assert(communityId != null),
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assert(instanceHost != null),
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communityName = null,
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_community = null;
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CommunityPage.fromCommunityView(this._community)
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: instanceHost = _community.instanceHost,
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communityId = _community.id,
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communityName = _community.name;
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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 accountsStore = useAccountsStore();
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final fullCommunitySnap = useMemoFuture(() {
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final token = accountsStore.defaultTokenFor(instanceHost);
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if (communityId != null) {
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return LemmyApi(instanceHost).v1.getCommunity(
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id: communityId,
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auth: token?.raw,
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);
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} else {
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return LemmyApi(instanceHost).v1.getCommunity(
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name: communityName,
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auth: token?.raw,
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);
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}
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});
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final colorOnCard = textColorBasedOnBackground(theme.cardColor);
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final community = () {
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if (fullCommunitySnap.hasData) {
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return fullCommunitySnap.data.community;
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} else if (_community != null) {
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return _community;
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} else {
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return null;
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}
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}();
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// FALLBACK
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if (community == null) {
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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 (fullCommunitySnap.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: ${fullCommunitySnap.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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// FUNCTIONS
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void _share() =>
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Share.text('Share instance', community.actorId, 'text/plain');
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void _openMoreMenu() {
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showModalBottomSheet(
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backgroundColor: Colors.transparent,
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context: context,
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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(community.actorId)
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? ul.launch(community.actorId)
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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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showInfoTablePopup(context, {
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'id': community.id,
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'actorId': community.actorId,
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'created by': '@${community.creatorName}',
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'hot rank': community.hotRank,
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'published': community.published,
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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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// TODO: change top section to be more flexible
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SliverAppBar(
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expandedHeight: 300,
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pinned: true,
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elevation: 0,
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backgroundColor: theme.cardColor,
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brightness: theme.brightness,
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iconTheme: theme.iconTheme,
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title: Text('!${community.name}',
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style: TextStyle(color: colorOnCard)),
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actions: [
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IconButton(icon: Icon(Icons.share), onPressed: _share),
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IconButton(icon: Icon(moreIcon), onPressed: _openMoreMenu),
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],
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flexibleSpace: FlexibleSpaceBar(
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background:
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_CommunityOverview(community, instanceHost: instanceHost),
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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(community.instanceHost).v1.getPosts(
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type: PostListingType.community,
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sort: sort,
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communityId: community.id,
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page: page,
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limit: batchSize,
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),
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),
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InfiniteCommentList(
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fetcher: (page, batchSize, sortType) =>
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LemmyApi(community.instanceHost).v1.getComments(
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communityId: community.id,
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auth: accountsStore
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.defaultTokenFor(community.instanceHost)
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?.raw,
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type: CommentListingType.community,
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sort: sortType,
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limit: batchSize,
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page: page,
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)),
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_AboutTab(
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community: community,
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moderators: fullCommunitySnap.data?.moderators,
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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 _CommunityOverview extends StatelessWidget {
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final CommunityView community;
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final String instanceHost;
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_CommunityOverview(
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this.community, {
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@required this.instanceHost,
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}) : assert(instanceHost != null),
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assert(goToInstance != 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 shadow = BoxShadow(color: theme.canvasColor, blurRadius: 5);
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final icon = community.icon != null
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? Stack(
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alignment: Alignment.center,
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children: [
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Container(
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width: 90,
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height: 90,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white,
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.7), blurRadius: 3)
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]),
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),
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SizedBox(
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width: 83,
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height: 83,
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child: FullscreenableImage(
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url: community.icon,
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child: CachedNetworkImage(
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imageUrl: community.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,
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image: imageProvider,
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),
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),
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),
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errorWidget: (_, __, ___) => Icon(Icons.warning),
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),
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),
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),
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],
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)
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: null;
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return Stack(children: [
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if (community.banner != null)
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FullscreenableImage(
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url: community.banner,
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child: CachedNetworkImage(
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imageUrl: community.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: Padding(
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padding: const EdgeInsets.only(top: 45),
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child: Column(children: [
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if (community.icon != null) icon,
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// NAME
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Center(
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child: Padding(
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padding: const EdgeInsets.only(top: 10),
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child: RichText(
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overflow: TextOverflow.ellipsis, // TODO: fix overflowing
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text: TextSpan(
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style:
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theme.textTheme.subtitle1.copyWith(shadows: [shadow]),
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children: [
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TextSpan(
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text: '!',
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style: TextStyle(fontWeight: FontWeight.w200)),
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TextSpan(
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text: community.name,
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style: TextStyle(fontWeight: FontWeight.w600)),
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TextSpan(
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text: '@',
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style: TextStyle(fontWeight: FontWeight.w200)),
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TextSpan(
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text: community.originInstanceHost,
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style: TextStyle(fontWeight: FontWeight.w600),
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recognizer: TapGestureRecognizer()
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..onTap = () => goToInstance(
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context, community.originInstanceHost),
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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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// TITLE/MOTTO
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Center(
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child: Padding(
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padding: const EdgeInsets.only(top: 8, left: 20, right: 20),
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child: Text(
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community.title,
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textAlign: TextAlign.center,
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style:
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TextStyle(fontWeight: FontWeight.w300, shadows: [shadow]),
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),
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)),
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Padding(
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padding: const EdgeInsets.only(top: 20),
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child: Stack(
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children: [
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// INFO ICONS
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Padding(
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padding: const EdgeInsets.only(top: 5),
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child: Row(
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children: [
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Spacer(),
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Padding(
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padding: const EdgeInsets.only(right: 3),
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child: Icon(Icons.people, size: 20),
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),
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Text(compactNumber(community.numberOfSubscribers)),
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Spacer(
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flex: 4,
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),
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Padding(
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padding: const EdgeInsets.only(right: 3),
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child: Icon(Icons.record_voice_over, size: 20),
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),
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Text('xx'), // TODO: display online users
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Spacer(),
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],
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),
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),
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_FollowButton(community),
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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 _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(color: theme.cardColor, child: _tabBar);
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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 StatelessWidget {
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final CommunityView community;
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final List<CommunityModeratorView> moderators;
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const _AboutTab({
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Key key,
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@required this.community,
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@required this.moderators,
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}) : super(key: key);
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void goToModlog() {
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print('GO TO MODLOG');
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}
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void goToCategories() {
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print('GO TO CATEGORIES');
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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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return ListView(
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padding: EdgeInsets.only(top: 20),
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children: [
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if (community.description != null) ...[
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 15),
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child: MarkdownText(community.description,
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instanceHost: community.instanceHost),
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),
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_Divider(),
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],
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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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// TODO: consider using Chips
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Padding(
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padding: const EdgeInsets.only(left: 7),
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child: _Badge('X users online'),
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),
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_Badge(
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'''${community.numberOfSubscribers} subscriber${pluralS(community.numberOfSubscribers)}'''),
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_Badge(
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'''${community.numberOfPosts} post${pluralS(community.numberOfPosts)}'''),
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Padding(
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padding: const EdgeInsets.only(right: 15),
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child: _Badge(
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'''${community.numberOfComments} comment${pluralS(community.numberOfComments)}'''),
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),
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],
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),
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),
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_Divider(),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 15),
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child: OutlineButton(
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(10),
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),
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onPressed: goToCategories,
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child: Text(community.categoryName),
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),
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),
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_Divider(),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 15),
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child: OutlineButton(
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(10),
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),
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onPressed: goToModlog,
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child: Text('Modlog'),
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),
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),
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_Divider(),
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if (moderators != null && moderators.isNotEmpty) ...[
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 15),
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child: Text('Mods:', style: theme.textTheme.subtitle2),
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),
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for (final mod in moderators)
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ListTile(
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title: Text(mod.userPreferredUsername ?? '@${mod.userName}'),
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onTap: () => goToUser.byId(context, mod.instanceHost, mod.userId),
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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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final bool noPad;
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_Badge(this.text, {this.noPad = false});
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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: noPad ? const EdgeInsets.all(0) : 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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class _FollowButton extends HookWidget {
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final CommunityView community;
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_FollowButton(this.community);
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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 isSubbed = useState(community.subscribed ?? false);
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final delayed = useDelayedLoading();
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final loggedInAction = useLoggedInAction(community.instanceHost);
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final colorOnTopOfAccent = textColorBasedOnBackground(theme.accentColor);
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subscribe(Jwt token) async {
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delayed.start();
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try {
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await LemmyApi(community.instanceHost).v1.followCommunity(
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communityId: community.id,
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follow: !isSubbed.value,
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auth: token.raw);
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isSubbed.value = !isSubbed.value;
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// ignore: avoid_catches_without_on_clauses
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} catch (e) {
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Scaffold.of(context).showSnackBar(SnackBar(
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content: Row(
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children: [
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Icon(Icons.warning),
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SizedBox(width: 10),
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Text("couldn't ${isSubbed.value ? 'un' : ''}sub :<"),
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],
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),
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));
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}
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delayed.cancel();
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}
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return Center(
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child: SizedBox(
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height: 27,
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width: 160,
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child: delayed.loading
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? RaisedButton(
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onPressed: null,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(20),
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),
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child: SizedBox(
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height: 15,
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width: 15,
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child: CircularProgressIndicator(),
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),
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)
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: RaisedButton.icon(
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padding: EdgeInsets.symmetric(vertical: 5, horizontal: 20),
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onPressed: loggedInAction(delayed.pending ? (_) {} : subscribe),
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icon: isSubbed.value
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? Icon(Icons.remove, size: 18, color: colorOnTopOfAccent)
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: Icon(Icons.add, size: 18, color: colorOnTopOfAccent),
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color: theme.accentColor,
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label: Text(
|
|
'${isSubbed.value ? 'un' : ''}subscribe',
|
|
style: TextStyle(
|
|
color: colorOnTopOfAccent,
|
|
fontSize: theme.textTheme.subtitle1.fontSize),
|
|
),
|
|
shape: RoundedRectangleBorder(
|
|
borderRadius: BorderRadius.circular(20),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|