pagination

lib/chat/models/chat_component_state.dart

@@ -0,0 +1,34 @@
+import 'package:async_tools/async_tools.dart';
+import 'package:fast_immutable_collections/fast_immutable_collections.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_chat_types/flutter_chat_types.dart' show Message, User;
+import 'package:flutter_chat_ui/flutter_chat_ui.dart' show ChatState;
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:scroll_to_index/scroll_to_index.dart';
+import 'package:veilid_support/veilid_support.dart';
+
+import 'window_state.dart';
+
+part 'chat_component_state.freezed.dart';
+
+@freezed
+class ChatComponentState with _$ChatComponentState {
+  const factory ChatComponentState(
+      {
+      // GlobalKey for the chat
+      required GlobalKey<ChatState> chatKey,
+      // ScrollController for the chat
+      required AutoScrollController scrollController,
+      // Local user
+      required User localUser,
+      // Remote users
+      required IMap<TypedKey, User> remoteUsers,
+      // Messages state
+      required AsyncValue<WindowState<Message>> messageWindow,
+      // Title of the chat
+      required String title}) = _ChatComponentState;
+}
+
+extension ChatComponentStateExt on ChatComponentState {
+  //
+}

lib/chat/models/chat_component_state.freezed.dart

@@ -0,0 +1,267 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'chat_component_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$ChatComponentState {
+// GlobalKey for the chat
+  GlobalKey<ChatState> get chatKey =>
+      throw _privateConstructorUsedError; // ScrollController for the chat
+  AutoScrollController get scrollController =>
+      throw _privateConstructorUsedError; // Local user
+  User get localUser => throw _privateConstructorUsedError; // Remote users
+  IMap<Typed<FixedEncodedString43>, User> get remoteUsers =>
+      throw _privateConstructorUsedError; // Messages state
+  AsyncValue<WindowState<Message>> get messageWindow =>
+      throw _privateConstructorUsedError; // Title of the chat
+  String get title => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $ChatComponentStateCopyWith<ChatComponentState> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ChatComponentStateCopyWith<$Res> {
+  factory $ChatComponentStateCopyWith(
+          ChatComponentState value, $Res Function(ChatComponentState) then) =
+      _$ChatComponentStateCopyWithImpl<$Res, ChatComponentState>;
+  @useResult
+  $Res call(
+      {GlobalKey<ChatState> chatKey,
+      AutoScrollController scrollController,
+      User localUser,
+      IMap<Typed<FixedEncodedString43>, User> remoteUsers,
+      AsyncValue<WindowState<Message>> messageWindow,
+      String title});
+
+  $AsyncValueCopyWith<WindowState<Message>, $Res> get messageWindow;
+}
+
+/// @nodoc
+class _$ChatComponentStateCopyWithImpl<$Res, $Val extends ChatComponentState>
+    implements $ChatComponentStateCopyWith<$Res> {
+  _$ChatComponentStateCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? chatKey = null,
+    Object? scrollController = null,
+    Object? localUser = null,
+    Object? remoteUsers = null,
+    Object? messageWindow = null,
+    Object? title = null,
+  }) {
+    return _then(_value.copyWith(
+      chatKey: null == chatKey
+          ? _value.chatKey
+          : chatKey // ignore: cast_nullable_to_non_nullable
+              as GlobalKey<ChatState>,
+      scrollController: null == scrollController
+          ? _value.scrollController
+          : scrollController // ignore: cast_nullable_to_non_nullable
+              as AutoScrollController,
+      localUser: null == localUser
+          ? _value.localUser
+          : localUser // ignore: cast_nullable_to_non_nullable
+              as User,
+      remoteUsers: null == remoteUsers
+          ? _value.remoteUsers
+          : remoteUsers // ignore: cast_nullable_to_non_nullable
+              as IMap<Typed<FixedEncodedString43>, User>,
+      messageWindow: null == messageWindow
+          ? _value.messageWindow
+          : messageWindow // ignore: cast_nullable_to_non_nullable
+              as AsyncValue<WindowState<Message>>,
+      title: null == title
+          ? _value.title
+          : title // ignore: cast_nullable_to_non_nullable
+              as String,
+    ) as $Val);
+  }
+
+  @override
+  @pragma('vm:prefer-inline')
+  $AsyncValueCopyWith<WindowState<Message>, $Res> get messageWindow {
+    return $AsyncValueCopyWith<WindowState<Message>, $Res>(_value.messageWindow,
+        (value) {
+      return _then(_value.copyWith(messageWindow: value) as $Val);
+    });
+  }
+}
+
+/// @nodoc
+abstract class _$$ChatComponentStateImplCopyWith<$Res>
+    implements $ChatComponentStateCopyWith<$Res> {
+  factory _$$ChatComponentStateImplCopyWith(_$ChatComponentStateImpl value,
+          $Res Function(_$ChatComponentStateImpl) then) =
+      __$$ChatComponentStateImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {GlobalKey<ChatState> chatKey,
+      AutoScrollController scrollController,
+      User localUser,
+      IMap<Typed<FixedEncodedString43>, User> remoteUsers,
+      AsyncValue<WindowState<Message>> messageWindow,
+      String title});
+
+  @override
+  $AsyncValueCopyWith<WindowState<Message>, $Res> get messageWindow;
+}
+
+/// @nodoc
+class __$$ChatComponentStateImplCopyWithImpl<$Res>
+    extends _$ChatComponentStateCopyWithImpl<$Res, _$ChatComponentStateImpl>
+    implements _$$ChatComponentStateImplCopyWith<$Res> {
+  __$$ChatComponentStateImplCopyWithImpl(_$ChatComponentStateImpl _value,
+      $Res Function(_$ChatComponentStateImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? chatKey = null,
+    Object? scrollController = null,
+    Object? localUser = null,
+    Object? remoteUsers = null,
+    Object? messageWindow = null,
+    Object? title = null,
+  }) {
+    return _then(_$ChatComponentStateImpl(
+      chatKey: null == chatKey
+          ? _value.chatKey
+          : chatKey // ignore: cast_nullable_to_non_nullable
+              as GlobalKey<ChatState>,
+      scrollController: null == scrollController
+          ? _value.scrollController
+          : scrollController // ignore: cast_nullable_to_non_nullable
+              as AutoScrollController,
+      localUser: null == localUser
+          ? _value.localUser
+          : localUser // ignore: cast_nullable_to_non_nullable
+              as User,
+      remoteUsers: null == remoteUsers
+          ? _value.remoteUsers
+          : remoteUsers // ignore: cast_nullable_to_non_nullable
+              as IMap<Typed<FixedEncodedString43>, User>,
+      messageWindow: null == messageWindow
+          ? _value.messageWindow
+          : messageWindow // ignore: cast_nullable_to_non_nullable
+              as AsyncValue<WindowState<Message>>,
+      title: null == title
+          ? _value.title
+          : title // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$ChatComponentStateImpl implements _ChatComponentState {
+  const _$ChatComponentStateImpl(
+      {required this.chatKey,
+      required this.scrollController,
+      required this.localUser,
+      required this.remoteUsers,
+      required this.messageWindow,
+      required this.title});
+
+// GlobalKey for the chat
+  @override
+  final GlobalKey<ChatState> chatKey;
+// ScrollController for the chat
+  @override
+  final AutoScrollController scrollController;
+// Local user
+  @override
+  final User localUser;
+// Remote users
+  @override
+  final IMap<Typed<FixedEncodedString43>, User> remoteUsers;
+// Messages state
+  @override
+  final AsyncValue<WindowState<Message>> messageWindow;
+// Title of the chat
+  @override
+  final String title;
+
+  @override
+  String toString() {
+    return 'ChatComponentState(chatKey: $chatKey, scrollController: $scrollController, localUser: $localUser, remoteUsers: $remoteUsers, messageWindow: $messageWindow, title: $title)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$ChatComponentStateImpl &&
+            (identical(other.chatKey, chatKey) || other.chatKey == chatKey) &&
+            (identical(other.scrollController, scrollController) ||
+                other.scrollController == scrollController) &&
+            (identical(other.localUser, localUser) ||
+                other.localUser == localUser) &&
+            (identical(other.remoteUsers, remoteUsers) ||
+                other.remoteUsers == remoteUsers) &&
+            (identical(other.messageWindow, messageWindow) ||
+                other.messageWindow == messageWindow) &&
+            (identical(other.title, title) || other.title == title));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, chatKey, scrollController,
+      localUser, remoteUsers, messageWindow, title);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$ChatComponentStateImplCopyWith<_$ChatComponentStateImpl> get copyWith =>
+      __$$ChatComponentStateImplCopyWithImpl<_$ChatComponentStateImpl>(
+          this, _$identity);
+}
+
+abstract class _ChatComponentState implements ChatComponentState {
+  const factory _ChatComponentState(
+      {required final GlobalKey<ChatState> chatKey,
+      required final AutoScrollController scrollController,
+      required final User localUser,
+      required final IMap<Typed<FixedEncodedString43>, User> remoteUsers,
+      required final AsyncValue<WindowState<Message>> messageWindow,
+      required final String title}) = _$ChatComponentStateImpl;
+
+  @override // GlobalKey for the chat
+  GlobalKey<ChatState> get chatKey;
+  @override // ScrollController for the chat
+  AutoScrollController get scrollController;
+  @override // Local user
+  User get localUser;
+  @override // Remote users
+  IMap<Typed<FixedEncodedString43>, User> get remoteUsers;
+  @override // Messages state
+  AsyncValue<WindowState<Message>> get messageWindow;
+  @override // Title of the chat
+  String get title;
+  @override
+  @JsonKey(ignore: true)
+  _$$ChatComponentStateImplCopyWith<_$ChatComponentStateImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/chat/models/messages_state.dart

@@ -1,27 +0,0 @@
-import 'package:fast_immutable_collections/fast_immutable_collections.dart';
-import 'package:flutter/foundation.dart';
-import 'package:freezed_annotation/freezed_annotation.dart';
-
-import 'message_state.dart';
-
-part 'messages_state.freezed.dart';
-part 'messages_state.g.dart';
-
-@freezed
-class MessagesState with _$MessagesState {
-  const factory MessagesState({
-    // List of messages in the window
-    required IList<MessageState> windowMessages,
-    // Total number of messages
-    required int length,
-    // One past the end of the last element
-    required int windowTail,
-    // The total number of elements to try to keep in 'messages'
-    required int windowCount,
-    // If we should have the tail following the array
-    required bool follow,
-  }) = _MessagesState;
-
-  factory MessagesState.fromJson(dynamic json) =>
-      _$MessagesStateFromJson(json as Map<String, dynamic>);
-}

lib/chat/models/messages_state.g.dart

@@ -1,28 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'messages_state.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-_$MessagesStateImpl _$$MessagesStateImplFromJson(Map<String, dynamic> json) =>
-    _$MessagesStateImpl(
-      windowMessages: IList<MessageState>.fromJson(
-          json['window_messages'], (value) => MessageState.fromJson(value)),
-      length: (json['length'] as num).toInt(),
-      windowTail: (json['window_tail'] as num).toInt(),
-      windowCount: (json['window_count'] as num).toInt(),
-      follow: json['follow'] as bool,
-    );
-
-Map<String, dynamic> _$$MessagesStateImplToJson(_$MessagesStateImpl instance) =>
-    <String, dynamic>{
-      'window_messages': instance.windowMessages.toJson(
-        (value) => value.toJson(),
-      ),
-      'length': instance.length,
-      'window_tail': instance.windowTail,
-      'window_count': instance.windowCount,
-      'follow': instance.follow,
-    };

lib/chat/models/models.dart

@@ -1,2 +1,3 @@
+export 'chat_component_state.dart';
 export 'message_state.dart';
-export 'messages_state.dart';
+export 'window_state.dart';

lib/chat/models/window_state.dart

@@ -0,0 +1,27 @@
+import 'package:fast_immutable_collections/fast_immutable_collections.dart';
+import 'package:flutter/foundation.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'window_state.freezed.dart';
+
+@freezed
+class WindowState<T> with _$WindowState<T> {
+  const factory WindowState({
+    // List of objects in the window
+    required IList<T> window,
+    // Total number of objects (windowTail max)
+    required int length,
+    // One past the end of the last element
+    required int windowTail,
+    // The total number of elements to try to keep in the window
+    required int windowCount,
+    // If we should have the tail following the array
+    required bool follow,
+  }) = _WindowState;
+}
+
+extension WindowStateExt<T> on WindowState<T> {
+  int get windowEnd => (length == 0) ? -1 : (windowTail - 1) % length;
+  int get windowStart =>
+      (length == 0) ? 0 : (windowTail - window.length) % length;
+}

lib/chat/models/window_state.freezed.dart

@@ -3,7 +3,7 @@
 // ignore_for_file: type=lint
 // ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
 
-part of 'messages_state.dart';
+part of 'window_state.dart';
 
 // **************************************************************************
 // FreezedGenerator
@@ -14,37 +14,32 @@ T _$identity<T>(T value) => value;
 final _privateConstructorUsedError = UnsupportedError(
     'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
 
-MessagesState _$MessagesStateFromJson(Map<String, dynamic> json) {
-  return _MessagesState.fromJson(json);
-}
-
 /// @nodoc
-mixin _$MessagesState {
-// List of messages in the window
-  IList<MessageState> get windowMessages =>
-      throw _privateConstructorUsedError; // Total number of messages
+mixin _$WindowState<T> {
+// List of objects in the window
+  IList<T> get window =>
+      throw _privateConstructorUsedError; // Total number of objects (windowTail max)
   int get length =>
       throw _privateConstructorUsedError; // One past the end of the last element
   int get windowTail =>
-      throw _privateConstructorUsedError; // The total number of elements to try to keep in 'messages'
+      throw _privateConstructorUsedError; // The total number of elements to try to keep in the window
   int get windowCount =>
       throw _privateConstructorUsedError; // If we should have the tail following the array
   bool get follow => throw _privateConstructorUsedError;
 
-  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
   @JsonKey(ignore: true)
-  $MessagesStateCopyWith<MessagesState> get copyWith =>
+  $WindowStateCopyWith<T, WindowState<T>> get copyWith =>
       throw _privateConstructorUsedError;
 }
 
 /// @nodoc
-abstract class $MessagesStateCopyWith<$Res> {
-  factory $MessagesStateCopyWith(
-          MessagesState value, $Res Function(MessagesState) then) =
-      _$MessagesStateCopyWithImpl<$Res, MessagesState>;
+abstract class $WindowStateCopyWith<T, $Res> {
+  factory $WindowStateCopyWith(
+          WindowState<T> value, $Res Function(WindowState<T>) then) =
+      _$WindowStateCopyWithImpl<T, $Res, WindowState<T>>;
   @useResult
   $Res call(
-      {IList<MessageState> windowMessages,
+      {IList<T> window,
       int length,
       int windowTail,
       int windowCount,
@@ -52,9 +47,9 @@ abstract class $MessagesStateCopyWith<$Res> {
 }
 
 /// @nodoc
-class _$MessagesStateCopyWithImpl<$Res, $Val extends MessagesState>
-    implements $MessagesStateCopyWith<$Res> {
-  _$MessagesStateCopyWithImpl(this._value, this._then);
+class _$WindowStateCopyWithImpl<T, $Res, $Val extends WindowState<T>>
+    implements $WindowStateCopyWith<T, $Res> {
+  _$WindowStateCopyWithImpl(this._value, this._then);
 
   // ignore: unused_field
   final $Val _value;
@@ -64,17 +59,17 @@ class _$MessagesStateCopyWithImpl<$Res, $Val extends MessagesState>
   @pragma('vm:prefer-inline')
   @override
   $Res call({
-    Object? windowMessages = null,
+    Object? window = null,
     Object? length = null,
     Object? windowTail = null,
     Object? windowCount = null,
     Object? follow = null,
   }) {
     return _then(_value.copyWith(
-      windowMessages: null == windowMessages
-          ? _value.windowMessages
-          : windowMessages // ignore: cast_nullable_to_non_nullable
-              as IList<MessageState>,
+      window: null == window
+          ? _value.window
+          : window // ignore: cast_nullable_to_non_nullable
+              as IList<T>,
       length: null == length
           ? _value.length
           : length // ignore: cast_nullable_to_non_nullable
@@ -96,15 +91,15 @@ class _$MessagesStateCopyWithImpl<$Res, $Val extends MessagesState>
 }
 
 /// @nodoc
-abstract class _$$MessagesStateImplCopyWith<$Res>
-    implements $MessagesStateCopyWith<$Res> {
-  factory _$$MessagesStateImplCopyWith(
-          _$MessagesStateImpl value, $Res Function(_$MessagesStateImpl) then) =
-      __$$MessagesStateImplCopyWithImpl<$Res>;
+abstract class _$$WindowStateImplCopyWith<T, $Res>
+    implements $WindowStateCopyWith<T, $Res> {
+  factory _$$WindowStateImplCopyWith(_$WindowStateImpl<T> value,
+          $Res Function(_$WindowStateImpl<T>) then) =
+      __$$WindowStateImplCopyWithImpl<T, $Res>;
   @override
   @useResult
   $Res call(
-      {IList<MessageState> windowMessages,
+      {IList<T> window,
       int length,
       int windowTail,
       int windowCount,
@@ -112,27 +107,27 @@ abstract class _$$MessagesStateImplCopyWith<$Res>
 }
 
 /// @nodoc
-class __$$MessagesStateImplCopyWithImpl<$Res>
-    extends _$MessagesStateCopyWithImpl<$Res, _$MessagesStateImpl>
-    implements _$$MessagesStateImplCopyWith<$Res> {
-  __$$MessagesStateImplCopyWithImpl(
-      _$MessagesStateImpl _value, $Res Function(_$MessagesStateImpl) _then)
+class __$$WindowStateImplCopyWithImpl<T, $Res>
+    extends _$WindowStateCopyWithImpl<T, $Res, _$WindowStateImpl<T>>
+    implements _$$WindowStateImplCopyWith<T, $Res> {
+  __$$WindowStateImplCopyWithImpl(
+      _$WindowStateImpl<T> _value, $Res Function(_$WindowStateImpl<T>) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
   @override
   $Res call({
-    Object? windowMessages = null,
+    Object? window = null,
     Object? length = null,
     Object? windowTail = null,
     Object? windowCount = null,
     Object? follow = null,
   }) {
-    return _then(_$MessagesStateImpl(
-      windowMessages: null == windowMessages
-          ? _value.windowMessages
-          : windowMessages // ignore: cast_nullable_to_non_nullable
-              as IList<MessageState>,
+    return _then(_$WindowStateImpl<T>(
+      window: null == window
+          ? _value.window
+          : window // ignore: cast_nullable_to_non_nullable
+              as IList<T>,
       length: null == length
           ? _value.length
           : length // ignore: cast_nullable_to_non_nullable
@@ -154,30 +149,27 @@ class __$$MessagesStateImplCopyWithImpl<$Res>
 }
 
 /// @nodoc
-@JsonSerializable()
-class _$MessagesStateImpl
+
+class _$WindowStateImpl<T>
     with DiagnosticableTreeMixin
-    implements _MessagesState {
-  const _$MessagesStateImpl(
-      {required this.windowMessages,
+    implements _WindowState<T> {
+  const _$WindowStateImpl(
+      {required this.window,
       required this.length,
       required this.windowTail,
       required this.windowCount,
       required this.follow});
 
-  factory _$MessagesStateImpl.fromJson(Map<String, dynamic> json) =>
-      _$$MessagesStateImplFromJson(json);
-
-// List of messages in the window
+// List of objects in the window
   @override
-  final IList<MessageState> windowMessages;
-// Total number of messages
+  final IList<T> window;
+// Total number of objects (windowTail max)
   @override
   final int length;
 // One past the end of the last element
   @override
   final int windowTail;
-// The total number of elements to try to keep in 'messages'
+// The total number of elements to try to keep in the window
   @override
   final int windowCount;
 // If we should have the tail following the array
@@ -186,15 +178,15 @@ class _$MessagesStateImpl
 
   @override
   String toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) {
-    return 'MessagesState(windowMessages: $windowMessages, length: $length, windowTail: $windowTail, windowCount: $windowCount, follow: $follow)';
+    return 'WindowState<$T>(window: $window, length: $length, windowTail: $windowTail, windowCount: $windowCount, follow: $follow)';
   }
 
   @override
   void debugFillProperties(DiagnosticPropertiesBuilder properties) {
     super.debugFillProperties(properties);
     properties
-      ..add(DiagnosticsProperty('type', 'MessagesState'))
-      ..add(DiagnosticsProperty('windowMessages', windowMessages))
+      ..add(DiagnosticsProperty('type', 'WindowState<$T>'))
+      ..add(DiagnosticsProperty('window', window))
       ..add(DiagnosticsProperty('length', length))
       ..add(DiagnosticsProperty('windowTail', windowTail))
       ..add(DiagnosticsProperty('windowCount', windowCount))
@@ -205,9 +197,8 @@ class _$MessagesStateImpl
   bool operator ==(Object other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$MessagesStateImpl &&
-            const DeepCollectionEquality()
-                .equals(other.windowMessages, windowMessages) &&
+            other is _$WindowStateImpl<T> &&
+            const DeepCollectionEquality().equals(other.window, window) &&
             (identical(other.length, length) || other.length == length) &&
             (identical(other.windowTail, windowTail) ||
                 other.windowTail == windowTail) &&
@@ -216,11 +207,10 @@ class _$MessagesStateImpl
             (identical(other.follow, follow) || other.follow == follow));
   }
 
-  @JsonKey(ignore: true)
   @override
   int get hashCode => Object.hash(
       runtimeType,
-      const DeepCollectionEquality().hash(windowMessages),
+      const DeepCollectionEquality().hash(window),
       length,
       windowTail,
       windowCount,
@@ -229,40 +219,31 @@ class _$MessagesStateImpl
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$MessagesStateImplCopyWith<_$MessagesStateImpl> get copyWith =>
-      __$$MessagesStateImplCopyWithImpl<_$MessagesStateImpl>(this, _$identity);
-
-  @override
-  Map<String, dynamic> toJson() {
-    return _$$MessagesStateImplToJson(
-      this,
-    );
-  }
+  _$$WindowStateImplCopyWith<T, _$WindowStateImpl<T>> get copyWith =>
+      __$$WindowStateImplCopyWithImpl<T, _$WindowStateImpl<T>>(
+          this, _$identity);
 }
 
-abstract class _MessagesState implements MessagesState {
-  const factory _MessagesState(
-      {required final IList<MessageState> windowMessages,
+abstract class _WindowState<T> implements WindowState<T> {
+  const factory _WindowState(
+      {required final IList<T> window,
       required final int length,
       required final int windowTail,
       required final int windowCount,
-      required final bool follow}) = _$MessagesStateImpl;
+      required final bool follow}) = _$WindowStateImpl<T>;
 
-  factory _MessagesState.fromJson(Map<String, dynamic> json) =
-      _$MessagesStateImpl.fromJson;
-
-  @override // List of messages in the window
-  IList<MessageState> get windowMessages;
-  @override // Total number of messages
+  @override // List of objects in the window
+  IList<T> get window;
+  @override // Total number of objects (windowTail max)
   int get length;
   @override // One past the end of the last element
   int get windowTail;
-  @override // The total number of elements to try to keep in 'messages'
+  @override // The total number of elements to try to keep in the window
   int get windowCount;
   @override // If we should have the tail following the array
   bool get follow;
   @override
   @JsonKey(ignore: true)
-  _$$MessagesStateImplCopyWith<_$MessagesStateImpl> get copyWith =>
+  _$$WindowStateImplCopyWith<T, _$WindowStateImpl<T>> get copyWith =>
       throw _privateConstructorUsedError;
 }