Add log out button

analysis_options.yaml

@@ -23,6 +23,8 @@ linter:
   rules:
     # avoid_print: false  # Uncomment to disable the `avoid_print` rule
     # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+    curly_braces_in_flow_control_structures: false
+    avoid_print: false
 
 # Additional information about this file can be found at
 # https://dart.dev/guides/language/analysis-options

android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET" />
+
     <application
         android:label="zenith"
         android:name="${applicationName}"

lib/chats.dart

@@ -1,57 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:matrix/matrix.dart';
-import 'package:provider/provider.dart';
-import 'package:shared_preferences/shared_preferences.dart';
-import 'package:zenith/zenith_client_provider.dart';
-
-class ChatsPage extends StatefulWidget {
-  const ChatsPage({super.key});
-
-  @override
-  State<ChatsPage> createState() => _ChatsPageState();
-}
-
-class _ChatsPageState extends State<ChatsPage> {
-  final serverController = TextEditingController();
-  final usernameController = TextEditingController();
-  final passwordController = TextEditingController();
-  late Client client;
-  bool roomsLoading = false;
-
-  @override
-  void initState() {
-    super.initState();
-    client = Provider.of<ZenithClientProvider>(context, listen: false).client;
-    client.onRoomState.stream.listen((event) {
-      print(event.type);
-    });
-  }
-
-  void sendMessage() {}
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        title: const Text("Zenith"),
-      ),
-      body: Padding(
-        padding: const EdgeInsets.all(16.0),
-        child: Center(
-          child: roomsLoading
-              ? const CircularProgressIndicator()
-              : Column(
-                  mainAxisAlignment: MainAxisAlignment.center,
-                  children: [Text("${client.rooms.length} Rooms.")],
-                ),
-        ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: sendMessage,
-        tooltip: 'Send message',
-        child: const Icon(Icons.send),
-      ),
-    );
-  }
-}

lib/login.dart

@@ -1,8 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:matrix/matrix.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:zenith/chats.dart';
+import 'package:zenith/rooms.dart';
 import 'package:zenith/zenith_client_provider.dart';
 
 class LoginPage extends StatefulWidget {
@@ -16,11 +15,36 @@ class _LoginPageState extends State<LoginPage> {
   final serverController = TextEditingController();
   final usernameController = TextEditingController();
   final passwordController = TextEditingController();
+  bool loggingIn = false;
+  String failedMessage = '';
 
   void connectMatrix() async {
-    final provider = Provider.of<ZenithClientProvider>(context, listen: false);
+    setState(() {
+      loggingIn = true;
+    });
+
+    try {
+      final provider =
+          Provider.of<ZenithClientProvider>(context, listen: false);
       await provider.initialize(serverController.text, usernameController.text,
           passwordController.text);
+    } catch (error) {
+      print("Error signing in $error");
+      setState(() {
+        failedMessage = error.toString();
+      });
+
+      Future.delayed(const Duration(seconds: 10), () {
+        setState(() {
+          failedMessage = '';
+        });
+      });
+      return;
+    } finally {
+      setState(() {
+        loggingIn = false;
+      });
+    }
 
     final prefs = await SharedPreferences.getInstance();
     prefs.setString("homeserver", serverController.text);
@@ -30,7 +54,7 @@ class _LoginPageState extends State<LoginPage> {
     if (!mounted) return;
     Navigator.pushAndRemoveUntil(
         context,
-        MaterialPageRoute(builder: (context) => const ChatsPage()),
+        MaterialPageRoute(builder: (context) => const RoomsPage()),
         (route) => false);
   }
 
@@ -41,7 +65,8 @@ class _LoginPageState extends State<LoginPage> {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
+    return Consumer<ZenithClientProvider>(
+      builder: (context, provider, child) => Scaffold(
         appBar: AppBar(
           backgroundColor: Theme.of(context).colorScheme.inversePrimary,
           title: const Text("Login"),
@@ -66,16 +91,22 @@ class _LoginPageState extends State<LoginPage> {
                   controller: passwordController,
                   decoration: const InputDecoration(labelText: 'Password'),
                   obscureText: true,
+                  onFieldSubmitted: (value) => connectMatrix(),
                 ),
+                Text(failedMessage,
+                    style: Theme.of(context).textTheme.headlineSmall)
               ],
             ),
           ),
         ),
-      floatingActionButton: FloatingActionButton(
+        floatingActionButton: loggingIn
+            ? const CircularProgressIndicator()
+            : FloatingActionButton(
                 onPressed: connectMatrix,
                 tooltip: 'Log in',
                 child: const Icon(Icons.login),
               ),
+      ),
     );
   }
 }

lib/main.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:matrix/matrix.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:zenith/chats.dart';
+import 'package:zenith/rooms.dart';
 import 'package:zenith/login.dart';
 import 'package:provider/provider.dart';
 import 'package:zenith/zenith_client_provider.dart';
@@ -66,7 +66,7 @@ class _MyHomePageState extends State<MyHomePage> {
     if (!savedCreds) {
       return const LoginPage();
     } else {
-      return const ChatsPage();
+      return const RoomsPage();
     }
   }
 }

lib/room.dart

@@ -0,0 +1,90 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:matrix/matrix.dart';
+
+class RoomPage extends StatefulWidget {
+  const RoomPage({super.key, required this.room});
+
+  final Room room;
+
+  @override
+  State<RoomPage> createState() => _RoomPageState();
+}
+
+class _RoomPageState extends State<RoomPage> {
+  Timeline? timeline;
+  final chatController = TextEditingController();
+  StreamSubscription? updateListener;
+
+  void updateTimeline() async {
+    final newTimeline =
+        await widget.room.getTimeline(eventContextId: widget.room.fullyRead);
+    setState(() {
+      timeline = newTimeline;
+    });
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    updateTimeline();
+    updateListener = widget.room.onUpdate.stream.listen((event) {
+      updateTimeline();
+    });
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    updateListener?.cancel();
+  }
+
+  void sendMessage() {}
+
+  List<Widget> getChildren() {
+    if (timeline == null) return [const CircularProgressIndicator()];
+    return [
+      Expanded(
+        child: ListView.builder(
+            itemCount: timeline?.events.length,
+            reverse: true,
+            itemBuilder: (context, index) => ListTile(
+                  title: Text(timeline!.events[index].senderFromMemoryOrFallback
+                          .displayName ??
+                      ""),
+                  subtitle: Text(timeline!.events[index].body),
+                )),
+      ),
+      TextFormField(
+        controller: chatController,
+        decoration: const InputDecoration(hintText: 'Message'),
+        onFieldSubmitted: (value) async {
+          print("Sending text event $value to room ${widget.room.id}...");
+          await widget.room.sendTextEvent(value);
+          chatController.text = '';
+        },
+      ),
+    ];
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
+        title: Text(widget.room.getLocalizedDisplayname()),
+      ),
+      body: Padding(
+          padding: const EdgeInsets.all(16.0),
+          child: Column(
+            children: getChildren(),
+          )),
+      floatingActionButton: FloatingActionButton(
+        onPressed: sendMessage,
+        tooltip: 'Send message',
+        child: const Icon(Icons.send),
+      ),
+    );
+  }
+}

lib/rooms.dart

@@ -0,0 +1,102 @@
+import 'package:flutter/material.dart';
+import 'package:matrix/matrix.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:zenith/login.dart';
+import 'package:zenith/room.dart';
+import 'package:zenith/zenith_client_provider.dart';
+
+class RoomsPage extends StatefulWidget {
+  const RoomsPage({super.key});
+
+  @override
+  State<RoomsPage> createState() => _RoomsPageState();
+}
+
+class _RoomsPageState extends State<RoomsPage> {
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  void sendMessage() {}
+
+  void viewRoom(Room room) {
+    Navigator.push(
+        context, MaterialPageRoute(builder: (context) => RoomPage(room: room)));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
+        title: const Text("Zenith"),
+        actions: [
+          IconButton(
+              onPressed: () {
+                showDialog(
+                  context: context,
+                  builder: (context) => AlertDialog(
+                    title: const Text("Log out?"),
+                    actions: [
+                      ElevatedButton(
+                          onPressed: () {
+                            Navigator.of(context).pop();
+                          },
+                          child: const Text("Cancel")),
+                      ElevatedButton(
+                        child: const Text("Confirm"),
+                        onPressed: () async {
+                          print("Logging out...");
+                          final prefs = await SharedPreferences.getInstance();
+                          prefs.remove("homeserver");
+                          prefs.remove("username");
+                          prefs.remove("password");
+
+                          if (!mounted) return;
+                          final provider = Provider.of<ZenithClientProvider>(
+                              context,
+                              listen: false);
+                          await provider.client.logout();
+
+                          if (!mounted) return;
+                          Navigator.pushAndRemoveUntil(
+                              context,
+                              MaterialPageRoute(
+                                  builder: (context) => const LoginPage()),
+                              (route) => false);
+                        },
+                      )
+                    ],
+                  ),
+                );
+              },
+              icon: const Icon(Icons.logout))
+        ],
+      ),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Center(child: Consumer<ZenithClientProvider>(
+          builder: (context, provider, child) {
+            if (provider.loading)
+              return const CircularProgressIndicator();
+            else
+              return ListView.builder(
+                  itemCount: provider.client.rooms.length,
+                  itemBuilder: (context, index) => ListTile(
+                        title: Text(provider.client.rooms[index]
+                            .getLocalizedDisplayname()),
+                        onTap: () => viewRoom(provider.client.rooms[index]),
+                      ));
+          },
+        )),
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: sendMessage,
+        tooltip: 'Send message',
+        child: const Icon(Icons.send),
+      ),
+    );
+  }
+}

lib/zenith_client_provider.dart

@@ -3,23 +3,28 @@ import 'package:matrix/matrix.dart';
 
 class ZenithClientProvider extends ChangeNotifier {
   late Client _client;
+  bool _loading = true;
 
   Client get client => _client;
 
-  void setClient(Client newClient) {
-    _client = newClient;
-    notifyListeners();
-  }
+  bool get loading => _loading;
 
   Future<void> initialize(
       String homeserver, String username, String password) async {
+    _loading = true;
     _client = Client("zenith");
+    try {
       print("Checking homeserver...");
       await client.checkHomeserver(Uri.parse(homeserver));
       print("Logging in...");
       await client.login(LoginType.mLoginPassword,
           identifier: AuthenticationUserIdentifier(user: username),
           password: password);
+      await client.roomsLoading;
+      await client.accountDataLoading;
+    } finally {
+      _loading = false;
+    }
     notifyListeners();
   }
 }