Surface/lib/screens/chat/room.dart

103 lines
3.2 KiB
Dart

import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:styled_widget/styled_widget.dart';
import 'package:surface/controllers/chat_message_controller.dart';
import 'package:surface/providers/channel.dart';
import 'package:surface/types/chat.dart';
import 'package:surface/widgets/chat/chat_message.dart';
import 'package:surface/widgets/chat/chat_message_input.dart';
import 'package:surface/widgets/dialog.dart';
import 'package:surface/widgets/loading_indicator.dart';
import 'package:very_good_infinite_list/very_good_infinite_list.dart';
class ChatRoomScreen extends StatefulWidget {
final String scope;
final String alias;
const ChatRoomScreen({super.key, required this.scope, required this.alias});
@override
State<ChatRoomScreen> createState() => _ChatRoomScreenState();
}
class _ChatRoomScreenState extends State<ChatRoomScreen> {
bool _isBusy = false;
SnChannel? _channel;
late final ChatMessageController _messageController;
Future<void> _fetchChannel() async {
setState(() => _isBusy = true);
try {
final chan = context.read<ChatChannelProvider>();
_channel = await chan.getChannel('${widget.scope}:${widget.alias}');
} catch (err) {
if (!mounted) return;
context.showErrorDialog(err);
} finally {
setState(() => _isBusy = false);
}
}
@override
void initState() {
super.initState();
_messageController = ChatMessageController(context);
_fetchChannel().then((_) async {
await _messageController.initialize(_channel!);
await _messageController.checkUpdate();
});
}
@override
void dispose() {
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(_channel?.name ?? 'loading'.tr()),
),
body: ListenableBuilder(
listenable: _messageController,
builder: (context, _) {
return Column(
children: [
LoadingIndicator(isActive: _isBusy),
if (_messageController.isPending)
Expanded(
child: const CircularProgressIndicator().center(),
),
if (!_messageController.isPending)
Expanded(
child: InfiniteList(
hasReachedMax: _messageController.isAllLoaded,
itemCount: _messageController.messages.length,
isLoading: _messageController.isLoading,
onFetchData: () {
_messageController.loadMessages();
},
itemBuilder: (context, idx) {
final message = _messageController.messages[idx];
return ChatMessage(data: message);
},
),
),
if (!_messageController.isPending)
Material(
elevation: 2,
child: ChatMessageInput(controller: _messageController)
.padding(bottom: MediaQuery.of(context).padding.bottom),
),
],
);
},
),
);
}
}