377 lines
12 KiB
Dart
377 lines
12 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:matrix/matrix.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:provider/provider.dart';
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void main() async {
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WidgetsFlutterBinding.ensureInitialized();
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final client = Client(
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'Matrix Example Chat',
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databaseBuilder: (_) async {
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final dir = await getApplicationSupportDirectory();
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final db = FluffyBoxDatabase('matrix_example_chat', dir.path);
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await db.open();
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return db;
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},
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);
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await client.init();
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runApp(MatrixExampleChat(client: client));
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}
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class MatrixExampleChat extends StatelessWidget {
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final Client client;
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const MatrixExampleChat({required this.client, Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Matrix Example Chat',
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builder: (context, child) => Provider<Client>(
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create: (context) => client,
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child: child,
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),
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home: client.isLogged() ? const RoomListPage() : const LoginPage(),
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);
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}
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}
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class LoginPage extends StatefulWidget {
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const LoginPage({Key? key}) : super(key: key);
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@override
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_LoginPageState createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> {
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final TextEditingController _homeserverTextField = TextEditingController(
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text: 'matrix.org',
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);
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final TextEditingController _usernameTextField = TextEditingController();
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final TextEditingController _passwordTextField = TextEditingController();
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bool _loading = false;
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void _login() async {
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setState(() {
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_loading = true;
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});
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try {
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final client = Provider.of<Client>(context, listen: false);
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await client
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.checkHomeserver(Uri.https(_homeserverTextField.text.trim(), ''));
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await client.login(
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LoginType.mLoginPassword,
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password: _passwordTextField.text,
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identifier: AuthenticationUserIdentifier(user: _usernameTextField.text),
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);
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Navigator.of(context).pushAndRemoveUntil(
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MaterialPageRoute(builder: (_) => const RoomListPage()),
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(route) => false,
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);
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} catch (e) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(e.toString()),
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),
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);
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setState(() {
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_loading = false;
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});
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: const Text('Login')),
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body: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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children: [
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TextField(
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controller: _homeserverTextField,
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readOnly: _loading,
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autocorrect: false,
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decoration: const InputDecoration(
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prefixText: 'https://',
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border: OutlineInputBorder(),
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labelText: 'Homeserver',
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),
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),
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const SizedBox(height: 16),
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TextField(
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controller: _usernameTextField,
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readOnly: _loading,
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autocorrect: false,
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decoration: const InputDecoration(
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border: OutlineInputBorder(),
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labelText: 'Username',
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),
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),
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const SizedBox(height: 16),
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TextField(
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controller: _passwordTextField,
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readOnly: _loading,
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autocorrect: false,
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obscureText: true,
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decoration: const InputDecoration(
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border: OutlineInputBorder(),
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labelText: 'Password',
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),
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),
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const SizedBox(height: 16),
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SizedBox(
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width: double.infinity,
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child: ElevatedButton(
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onPressed: _loading ? null : _login,
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child: _loading
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? const LinearProgressIndicator()
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: const Text('Login'),
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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 RoomListPage extends StatefulWidget {
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const RoomListPage({Key? key}) : super(key: key);
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@override
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_RoomListPageState createState() => _RoomListPageState();
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}
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class _RoomListPageState extends State<RoomListPage> {
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void _logout() async {
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final client = Provider.of<Client>(context, listen: false);
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await client.logout();
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Navigator.of(context).pushAndRemoveUntil(
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MaterialPageRoute(builder: (_) => const LoginPage()),
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(route) => false,
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);
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}
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void _join(Room room) async {
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if (room.membership != Membership.join) {
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await room.join();
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}
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Navigator.of(context).push(
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MaterialPageRoute(
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builder: (_) => RoomPage(room: room),
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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final client = Provider.of<Client>(context, listen: false);
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return Scaffold(
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appBar: AppBar(
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title: const Text('Chats'),
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actions: [
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IconButton(
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icon: const Icon(Icons.logout),
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onPressed: _logout,
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),
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],
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),
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body: StreamBuilder(
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stream: client.onSync.stream,
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builder: (context, _) => ListView.builder(
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itemCount: client.rooms.length,
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itemBuilder: (context, i) => ListTile(
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leading: CircleAvatar(
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foregroundImage: client.rooms[i].avatar == null
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? null
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: NetworkImage(client.rooms[i].avatar!
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.getThumbnail(
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client,
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width: 56,
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height: 56,
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)
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.toString()),
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),
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title: Row(
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children: [
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Expanded(child: Text(client.rooms[i].displayname)),
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if (client.rooms[i].notificationCount > 0)
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Material(
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borderRadius: BorderRadius.circular(99),
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color: Colors.red,
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child: Padding(
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padding: const EdgeInsets.all(2.0),
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child:
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Text(client.rooms[i].notificationCount.toString()),
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))
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],
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),
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subtitle: Text(
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client.rooms[i].lastEvent?.body ?? 'No messages',
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maxLines: 1,
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),
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onTap: () => _join(client.rooms[i]),
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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 RoomPage extends StatefulWidget {
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final Room room;
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const RoomPage({required this.room, Key? key}) : super(key: key);
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@override
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_RoomPageState createState() => _RoomPageState();
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}
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class _RoomPageState extends State<RoomPage> {
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late final Future<Timeline> _timelineFuture;
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final GlobalKey<AnimatedListState> _listKey = GlobalKey<AnimatedListState>();
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int _count = 0;
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@override
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void initState() {
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_timelineFuture = widget.room.getTimeline(onChange: (i) {
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print('on change! $i');
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_listKey.currentState?.setState(() {});
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}, onInsert: (i) {
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print('on insert! $i');
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_listKey.currentState?.insertItem(i);
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_count++;
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}, onRemove: (i) {
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print('On remove $i');
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_count--;
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_listKey.currentState?.removeItem(i, (_, __) => const ListTile());
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}, onHistoryReceived: (count) {
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print('On History Received $count');
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for (var i = 0; i < count; i++) {
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_listKey.currentState?.insertItem(_count + i);
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}
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_count += count;
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});
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super.initState();
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}
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final TextEditingController _sendController = TextEditingController();
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void _send() {
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widget.room.sendTextEvent(_sendController.text.trim());
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_sendController.clear();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text(widget.room.displayname),
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),
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body: SafeArea(
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child: Column(
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children: [
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Expanded(
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child: FutureBuilder<Timeline>(
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future: _timelineFuture,
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builder: (context, snapshot) {
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final timeline = snapshot.data;
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if (timeline == null) {
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return const Center(
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child: CircularProgressIndicator.adaptive(),
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);
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}
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_count = timeline.events.length;
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return Column(
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children: [
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Center(
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child: TextButton(
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onPressed: timeline.requestHistory,
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child: const Text('Load more...')),
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),
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const Divider(height: 1),
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Expanded(
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child: AnimatedList(
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key: _listKey,
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reverse: true,
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initialItemCount: timeline.events.length,
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itemBuilder: (context, i, animation) => timeline
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.events[i].relationshipEventId !=
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null
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? Container()
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: ScaleTransition(
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scale: animation,
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child: Opacity(
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opacity: timeline.events[i].status.isSent
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? 1
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: 0.5,
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child: ListTile(
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leading: CircleAvatar(
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foregroundImage: timeline.events[i]
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.sender.avatarUrl ==
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null
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? null
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: NetworkImage(timeline
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.events[i].sender.avatarUrl!
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.getThumbnail(
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widget.room.client,
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width: 56,
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height: 56,
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)
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.toString()),
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),
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title: Row(
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children: [
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Expanded(
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child: Text(timeline
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.events[i].sender
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.calcDisplayname()),
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),
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Text(
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timeline.events[i].originServerTs
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.toIso8601String(),
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style:
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const TextStyle(fontSize: 10),
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),
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],
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),
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subtitle: Text(timeline.events[i]
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.getDisplayEvent(timeline)
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.body),
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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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const Divider(height: 1),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16.0),
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child: Row(
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children: [
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Expanded(
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child: TextField(
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controller: _sendController,
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decoration: const InputDecoration(
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hintText: 'Send message',
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),
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)),
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IconButton(
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icon: const Icon(Icons.send_outlined),
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onPressed: _send,
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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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