load old messages

lib/controllers/events_controller.dart

@@ -0,0 +1,30 @@
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:matrix/matrix.dart";
+import "package:nexus/controllers/from_controller.dart";
+
+class EventsController extends AsyncNotifier<GetRoomEventsResponse> {
+  EventsController(this.room);
+  final Room room;
+
+  @override
+  Future<GetRoomEventsResponse> build({String? from}) async {
+    final response = await room.client.getRoomEvents(
+      room.id,
+      Direction.b,
+      from: from,
+      limit: 32,
+    );
+    ref.watch(FromController.provider(room).notifier).set(response.end);
+    return response;
+  }
+
+  Future<GetRoomEventsResponse> prev() async {
+    final resp = await build(from: ref.read(FromController.provider(room)));
+    return resp;
+  }
+
+  static final provider = AsyncNotifierProvider.autoDispose
+      .family<EventsController, GetRoomEventsResponse, Room>(
+        EventsController.new,
+      );
+}

lib/controllers/from_controller.dart

@@ -0,0 +1,15 @@
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:matrix/matrix.dart";
+
+class FromController extends Notifier<String?> {
+  FromController(_);
+  @override
+  String? build() => null;
+
+  void set(String? value) => state = value;
+
+  static final provider =
+      NotifierProvider.family<FromController, String?, Room>(
+        FromController.new,
+      );
+}

lib/controllers/members_controller.dart

@@ -1,20 +1,22 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:matrix/matrix.dart";
 
-class MembersController extends AsyncNotifier<List<MatrixEvent>> {
+class MembersController extends AsyncNotifier<IList<MatrixEvent>> {
   final Room room;
   MembersController(this.room);
 
   @override
-  Future<List<MatrixEvent>> build() async =>
+  Future<IList<MatrixEvent>> build() async => IList(
     (await room.client.getMembersByRoom(
           room.id,
           notMembership: Membership.leave,
         )) ??
-      [];
+        [],
+  );
 
   static final provider =
-      AsyncNotifierProvider.family<MembersController, List<MatrixEvent>, Room>(
+      AsyncNotifierProvider.family<MembersController, IList<MatrixEvent>, Room>(
         MembersController.new,
       );
 }

lib/controllers/room_chat_controller.dart

@@ -3,7 +3,7 @@ import "package:flutter_chat_core/flutter_chat_core.dart";
 import "package:flutter_chat_core/flutter_chat_core.dart" as chat;
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:matrix/matrix.dart";
-import "package:nexus/controllers/timeline_controller.dart";
+import "package:nexus/controllers/events_controller.dart";
 import "package:nexus/helpers/extension_helper.dart";
 
 class RoomChatController extends AsyncNotifier<ChatController> {
@@ -12,7 +12,7 @@ class RoomChatController extends AsyncNotifier<ChatController> {
 
   @override
   Future<ChatController> build() async {
-    final timeline = await ref.watch(TimelineController.provider(room).future);
+    final response = await ref.watch(EventsController.provider(room).future);
 
     ref.onDispose(
       room.client.onTimelineEvent.stream.listen((event) async {
@@ -26,8 +26,10 @@ class RoomChatController extends AsyncNotifier<ChatController> {
 
     return InMemoryChatController(
       messages: (await Future.wait(
-        timeline.events.map((event) => event.toMessage()),
+        response.chunk.map(
-      )).toList().reversed.nonNulls.toList(),
+          (event) => Event.fromMatrixEvent(event, room).toMessage(),
+        ),
+      )).nonNulls.toList(),
     );
   }
 
@@ -46,13 +48,22 @@ class RoomChatController extends AsyncNotifier<ChatController> {
   }
 
   Future<void> loadOlder() async {
-    await ref.watch(TimelineController.provider(room).notifier).prev();
+    final controller = await future;
+    final response = await ref
+        .watch(EventsController.provider(room).notifier)
+        .prev();
+    await controller.insertAllMessages(
+      (await Future.wait(
+        response.chunk.map(
+          (event) => Event.fromMatrixEvent(event, room).toMessage(),
+        ),
+      )).nonNulls.toList().reversed.toList(),
+      index: 0,
+    );
   }
 
-  Future<void> updateMessage(Message message, Message newMessage) async {
+  Future<void> updateMessage(Message message, Message newMessage) async =>
-    final controller = await future;
+      (await future).updateMessage(message, newMessage);
-    return controller.updateMessage(message, newMessage);
-  }
 
   Future<void> send(String message, {Message? replyTo}) async =>
       await room.sendTextEvent(

lib/controllers/spaces_controller.dart

@@ -1,13 +1,14 @@
 import "package:collection/collection.dart";
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter/material.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/client_controller.dart";
 import "package:nexus/helpers/extension_helper.dart";
 import "package:nexus/models/space.dart";
 
-class SpacesController extends AsyncNotifier<List<Space>> {
+class SpacesController extends AsyncNotifier<IList<Space>> {
   @override
-  Future<List<Space>> build() async {
+  Future<IList<Space>> build() async {
     final client = await ref.watch(ClientController.provider.future);
 
     final topLevel = await Future.wait(
@@ -28,7 +29,7 @@ class SpacesController extends AsyncNotifier<List<Space>> {
     final topLevelSpaces = topLevel.where((r) => r.roomData.isSpace).toList();
     final topLevelRooms = topLevel.where((r) => !r.roomData.isSpace).toList();
 
-    return [
+    return IList([
       Space(
         client: client,
         title: "Home",
@@ -66,10 +67,10 @@ class SpacesController extends AsyncNotifier<List<Space>> {
           ),
         ),
       )),
-    ];
+    ]);
   }
 
-  static final provider = AsyncNotifierProvider<SpacesController, List<Space>>(
+  static final provider = AsyncNotifierProvider<SpacesController, IList<Space>>(
     SpacesController.new,
   );
 }

lib/controllers/timeline_controller.dart

@@ -1,21 +0,0 @@
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:matrix/matrix.dart";
-
-class TimelineController extends AsyncNotifier<Timeline> {
-  TimelineController(this.room);
-  final Room room;
-
-  @override
-  Future<Timeline> build() => room.getTimeline();
-
-  Future<void> prev() async {
-    final timeline = await future;
-    await timeline.requestHistory();
-    state = AsyncValue.data(timeline);
-  }
-
-  static final provider =
-      AsyncNotifierProvider.family<TimelineController, Timeline, Room>(
-        TimelineController.new,
-      );
-}

lib/helpers/extension_helper.dart

@@ -39,7 +39,9 @@ extension ToMessage on Event {
     final metadata = {
       "formatted": formattedText.isEmpty ? body : formattedText,
       "eventType": type,
-      "displayName": senderFromMemoryOrFallback.displayName,
+      "displayName":
+          senderFromMemoryOrFallback.displayName ??
+          senderFromMemoryOrFallback.id,
       "txnId": transactionId,
     };
 

lib/main.dart

@@ -29,6 +29,7 @@ class App extends StatelessWidget {
     builder: (lightDynamic, darkDynamic) => LayoutBuilder(
       builder: (context, constraints) {
         final isDesktop = constraints.maxWidth > 650;
+        final showMembersByDefault = constraints.maxWidth > 1000;
 
         return MaterialApp(
           debugShowCheckedModeBanner: false,
@@ -47,7 +48,12 @@ class App extends StatelessWidget {
               builder: (context) => Row(
                 children: [
                   if (isDesktop) Sidebar(),
-                  Expanded(child: RoomChat(isDesktop: isDesktop)),
+                  Expanded(
+                    child: RoomChat(
+                      isDesktop: isDesktop,
+                      showMembersByDefault: showMembersByDefault,
+                    ),
+                  ),
                 ],
               ),
             ),

lib/widgets/room_chat.dart

@@ -24,7 +24,12 @@ import "package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart
 
 class RoomChat extends HookConsumerWidget {
   final bool isDesktop;
-  const RoomChat({required this.isDesktop, super.key});
+  final bool showMembersByDefault;
+  const RoomChat({
+    required this.isDesktop,
+    required this.showMembersByDefault,
+    super.key,
+  });
 
   void showContextMenu({
     required BuildContext context,
@@ -48,8 +53,7 @@ class RoomChat extends HookConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final replyToMessage = useState<Message?>(null);
-    final memberListOpened = useState<bool>(isDesktop);
+    final memberListOpened = useState<bool>(showMembersByDefault);
-    final urlRegex = RegExp(r"https?://[^\s\]\(\)]+");
     final theme = Theme.of(context);
     return ref
         .watch(CurrentRoomController.provider)
@@ -105,14 +109,13 @@ class RoomChat extends HookConsumerWidget {
                                   onTap: () => replyToMessage.value = message,
                                 ),
                             builders: Builders(
-                              chatAnimatedListBuilder: (context, itemBuilder) {
+                              chatAnimatedListBuilder: (_, itemBuilder) =>
-                                return ChatAnimatedList(
+                                  ChatAnimatedList(
                                     itemBuilder: itemBuilder,
                                     onEndReached: ref
                                         .watch(controllerProvider.notifier)
                                         .loadOlder,
-                                );
+                                  ),
-                              },
                               composerBuilder: (_) => ChatBox(
                                 replyToMessage: replyToMessage.value,
                                 onDismiss: () => replyToMessage.value = null,
@@ -133,15 +136,21 @@ class RoomChat extends HookConsumerWidget {
                                           return SizedBox.shrink();
                                         }
                                         if (element.localName == "code") {
+                                          if (element.parent?.localName ==
+                                              "pre") {
                                             return SizedBox(
                                               width: 400,
                                               child: CodeField(
                                                 name: element.className
-                                                  .replaceAll("language-", ""),
+                                                    .replaceAll(
+                                                      "language-",
+                                                      "",
+                                                    ),
                                                 codes: element.text,
                                               ),
                                             );
                                           }
+                                        }
                                         if (element.localName == "img") {
                                           final src = Uri.tryParse(
                                             element.attributes["src"] ?? "",
@@ -204,11 +213,7 @@ class RoomChat extends HookConsumerWidget {
                                   ),
                               linkPreviewBuilder: (_, message, isSentByMe) =>
                                   LinkPreview(
-                                    text:
+                                    text: message.text,
-                                        urlRegex
-                                            .firstMatch(message.text)
-                                            ?.group(0) ??
-                                        "",
                                     backgroundColor: isSentByMe
                                         ? theme.colorScheme.inversePrimary
                                         : theme.colorScheme.surfaceContainerLow,
@@ -306,11 +311,13 @@ class RoomChat extends HookConsumerWidget {
                         ),
                   ),
 
-                  if (memberListOpened.value == true && isDesktop)
+                  if (memberListOpened.value == true && showMembersByDefault)
                     MemberList(room.roomData),
                 ],
               ),
-              endDrawer: isDesktop ? null : MemberList(room.roomData),
+              endDrawer: showMembersByDefault
+                  ? null
+                  : MemberList(room.roomData),
             );
           },
         );

lib/widgets/top_widget.dart

@@ -1,5 +1,4 @@
 import "dart:math";
-
 import "package:flutter/material.dart";
 import "package:flutter_chat_core/flutter_chat_core.dart";
 import "package:flutter_chat_ui/flutter_chat_ui.dart";
@@ -29,13 +28,18 @@ class TopWidget extends ConsumerWidget {
               loading: SizedBox.shrink,
               data: (replyMessage) {
                 if (replyMessage == null) return SizedBox.shrink();
+
+                // Black magic to limit reply preview length
                 final replyText = message is TextMessage
                     ? replyMessage.text.substring(
                         0,
                         min(
                           max(
                             min(
+                              max(
                                 (message as TextMessage).text.length - 20,
+                                message.metadata?["displayName"].length,
+                              ),
                               replyMessage.text.length,
                             ),
                             5,