✨ Basic publisher page
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272
lib/screens/post/post_publisher.dart
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272
lib/screens/post/post_publisher.dart
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import 'dart:ui';
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:gap/gap.dart';
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import 'package:go_router/go_router.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import 'package:provider/provider.dart';
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import 'package:styled_widget/styled_widget.dart';
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import 'package:surface/providers/post.dart';
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import 'package:surface/providers/sn_network.dart';
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import 'package:surface/providers/user_directory.dart';
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import 'package:surface/types/account.dart';
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import 'package:surface/types/post.dart';
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import 'package:surface/widgets/account/account_image.dart';
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import 'package:surface/widgets/dialog.dart';
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import 'package:surface/widgets/post/post_item.dart';
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import 'package:surface/widgets/universal_image.dart';
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import 'package:very_good_infinite_list/very_good_infinite_list.dart';
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class PostPublisherScreen extends StatefulWidget {
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final String name;
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const PostPublisherScreen({super.key, required this.name});
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@override
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State<PostPublisherScreen> createState() => _PostPublisherScreenState();
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}
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class _PostPublisherScreenState extends State<PostPublisherScreen> {
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late final ScrollController _scrollController = ScrollController();
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SnPublisher? _publisher;
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SnAccount? _account;
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Future<void> _fetchPublisher() async {
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try {
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final sn = context.read<SnNetworkProvider>();
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final ud = context.read<UserDirectoryProvider>();
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final resp = await sn.client.get('/cgi/co/publishers/${widget.name}');
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if (!mounted) return;
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_publisher = SnPublisher.fromJson(resp.data);
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_account = await ud.getAccount(_publisher?.accountId);
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} catch (err) {
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if (!mounted) return;
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context.showErrorDialog(err).then((_) {
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if (mounted) Navigator.pop(context);
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});
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} finally {
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setState(() {});
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}
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}
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double _appBarBlur = 0.0;
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late final _appBarWidth = MediaQuery.of(context).size.width;
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late final _appBarHeight =
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(_appBarWidth * kBannerAspectRatio).roundToDouble();
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void _updateAppBarBlur() {
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if (_scrollController.offset > _appBarHeight) return;
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setState(() {
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_appBarBlur =
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(_scrollController.offset / _appBarHeight * 10).clamp(0.0, 10.0);
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});
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}
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bool _isBusy = false;
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int? _postCount;
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final List<SnPost> _posts = List.empty(growable: true);
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Future<void> _fetchPosts() async {
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if (_isBusy) return;
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_isBusy = true;
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try {
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final pt = context.read<SnPostContentProvider>();
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final result = await pt.listPosts(
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offset: _posts.length,
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author: widget.name,
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);
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_postCount = result.$2;
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_posts.addAll(result.$1);
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} catch (err) {
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if (!mounted) return;
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context.showErrorDialog(err);
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} finally {
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_isBusy = false;
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setState(() {});
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}
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}
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@override
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void initState() {
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super.initState();
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_fetchPublisher().then((_) {
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_fetchPosts();
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});
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_scrollController.addListener(_updateAppBarBlur);
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}
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@override
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void dispose() {
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_scrollController.removeListener(_updateAppBarBlur);
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_scrollController.dispose();
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super.dispose();
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}
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static const kBannerAspectRatio = 7 / 16;
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@override
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Widget build(BuildContext context) {
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final imageHeight = _appBarHeight + kToolbarHeight + 8;
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final sn = context.read<SnNetworkProvider>();
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return Scaffold(
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body: CustomScrollView(
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controller: _scrollController,
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slivers: [
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SliverAppBar(
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expandedHeight: _appBarHeight,
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title: Text(_publisher?.nick ?? 'loading'.tr()),
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pinned: true,
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flexibleSpace: _publisher != null
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? Stack(
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fit: StackFit.expand,
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children: [
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UniversalImage(
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sn.getAttachmentUrl(_publisher!.banner),
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fit: BoxFit.cover,
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height: imageHeight,
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width: _appBarWidth,
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cacheHeight: imageHeight,
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cacheWidth: _appBarWidth,
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),
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Positioned(
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top: 0,
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left: 0,
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right: 0,
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height: 56 + MediaQuery.of(context).padding.top,
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child: ClipRect(
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child: BackdropFilter(
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filter: ImageFilter.blur(
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sigmaX: _appBarBlur,
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sigmaY: _appBarBlur,
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),
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child: Container(
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color: Colors.black.withOpacity(
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clampDouble(_appBarBlur * 0.1, 0, 0.5),
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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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: null,
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),
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if (_publisher != null)
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SliverToBoxAdapter(
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child: Container(
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constraints: const BoxConstraints(maxWidth: 640),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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AccountImage(
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content: _publisher!.avatar,
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radius: 28,
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),
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const Gap(16),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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_publisher!.nick,
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style: Theme.of(context).textTheme.titleMedium,
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).bold(),
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Text('@${_publisher!.name}').fontSize(13),
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],
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),
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),
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ElevatedButton(
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style:
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ButtonStyle(elevation: WidgetStatePropertyAll(0)),
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onPressed: () {},
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child: Text('subscribe').tr(),
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),
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],
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).padding(right: 8),
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const Gap(12),
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Text(_publisher!.description).padding(horizontal: 8),
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const Gap(12),
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Column(
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children: [
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Row(
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children: [
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const Icon(Symbols.calendar_add_on),
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const Gap(8),
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Text('publisherJoinedAt').tr(args: [
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DateFormat('y/M/d').format(_publisher!.createdAt)
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]),
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],
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),
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Row(
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children: [
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const Icon(Symbols.trending_up),
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const Gap(8),
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Text('publisherSocialPointTotal').plural(
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_publisher!.totalUpvote -
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_publisher!.totalDownvote,
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),
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],
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),
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Row(
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children: [
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const Icon(Symbols.tools_wrench),
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const Gap(8),
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InkWell(
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child: Text('publisherRunBy').tr(args: [
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'@${_account?.name ?? 'unknown'}',
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]),
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onTap: () {},
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),
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const Gap(8),
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AccountImage(content: _account?.avatar, radius: 8),
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],
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),
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],
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).padding(horizontal: 8),
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],
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).padding(all: 16),
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).center(),
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),
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SliverToBoxAdapter(
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child: const Divider(height: 1),
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),
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SliverInfiniteList(
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itemCount: _posts.length,
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isLoading: _isBusy,
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hasReachedMax: _postCount != null && _posts.length >= _postCount!,
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onFetchData: _fetchPosts,
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itemBuilder: (context, idx) {
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return GestureDetector(
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child: PostItem(
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data: _posts[idx],
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maxWidth: 640,
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onChanged: (data) {
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setState(() => _posts[idx] = data);
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},
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onDeleted: () {
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_posts.clear();
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_fetchPosts();
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},
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),
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onTap: () {
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GoRouter.of(context).pushNamed(
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'postDetail',
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pathParameters: {'slug': _posts[idx].id.toString()},
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extra: _posts[idx],
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);
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},
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);
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},
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separatorBuilder: (context, index) => const Divider(height: 1),
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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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