Solian/lib/screens/chat/chat_list.dart

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Dart
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import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:solian/models/channel.dart';
import 'package:solian/providers/auth.dart';
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import 'package:solian/router.dart';
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import 'package:solian/utils/service_url.dart';
import 'package:solian/utils/theme.dart';
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import 'package:solian/widgets/chat/chat_new.dart';
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import 'package:solian/widgets/exts.dart';
import 'package:solian/widgets/scaffold.dart';
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import 'package:flutter_gen/gen_l10n/app_localizations.dart';
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import 'package:solian/widgets/notification_notifier.dart';
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import 'package:solian/widgets/signin_required.dart';
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class ChatListScreen extends StatelessWidget {
const ChatListScreen({super.key});
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@override
Widget build(BuildContext context) {
return IndentScaffold(
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title: AppLocalizations.of(context)!.chat,
appBarActions: const [NotificationButton()],
fixedAppBarColor: SolianTheme.isLargeScreen(context),
child: ChatListWidget(
onSelect: (item) {
SolianRouter.router.pushReplacementNamed(
'chat.channel',
pathParameters: {'channel': item.alias},
);
},
),
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);
}
}
class ChatListWidget extends StatefulWidget {
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final Function(Channel item)? onSelect;
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const ChatListWidget({super.key, this.onSelect});
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@override
State<ChatListWidget> createState() => _ChatListWidgetState();
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}
class _ChatListWidgetState extends State<ChatListWidget> {
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List<Channel> _channels = List.empty();
Future<void> fetchChannels() async {
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final auth = context.read<AuthProvider>();
if (!await auth.isAuthorized()) return;
var uri = getRequestUri('messaging', '/api/channels/me/available');
var res = await auth.client!.get(uri);
if (res.statusCode == 200) {
final result = jsonDecode(utf8.decode(res.bodyBytes)) as List<dynamic>;
setState(() {
_channels = result.map((x) => Channel.fromJson(x)).toList();
});
} else {
var message = utf8.decode(res.bodyBytes);
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context.showErrorDialog(message);
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}
}
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void viewNewChatAction() {
showModalBottomSheet(
context: context,
builder: (context) => ChatNewAction(onUpdate: () => fetchChannels()),
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);
}
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@override
void initState() {
Future.delayed(Duration.zero, () {
fetchChannels();
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});
super.initState();
}
@override
Widget build(BuildContext context) {
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final auth = context.read<AuthProvider>();
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return Scaffold(
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floatingActionButton: FutureBuilder(
future: auth.isAuthorized(),
builder: (context, snapshot) {
if (snapshot.hasData && snapshot.data!) {
return FloatingActionButton.extended(
icon: const Icon(Icons.add),
label: Text(AppLocalizations.of(context)!.chatNew),
onPressed: () => viewNewChatAction(),
);
} else {
return Container();
}
},
),
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body: FutureBuilder(
future: auth.isAuthorized(),
builder: (context, snapshot) {
if (!snapshot.hasData || !snapshot.data!) {
return const SignInRequiredScreen();
}
return RefreshIndicator(
onRefresh: () => fetchChannels(),
child: ListView.builder(
itemCount: _channels.length,
itemBuilder: (context, index) {
final element = _channels[index];
return ListTile(
leading: const CircleAvatar(
backgroundColor: Colors.indigo,
child: Icon(Icons.tag, color: Colors.white),
),
title: Text(element.name),
subtitle: Text(element.description),
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onTap: () async {
if (widget.onSelect != null) {
widget.onSelect!(element);
return;
}
final result = await SolianRouter.router.pushNamed(
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'chat.channel',
pathParameters: {
'channel': element.alias,
},
);
switch (result) {
case 'refresh':
fetchChannels();
}
},
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);
},
),
);
},
),
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);
}
}