Files
stream-chat-flutter/packages/stream_chat/lib/src/models/channel_state.dart
T

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1.7 KiB
Dart

import 'package:json_annotation/json_annotation.dart';
import '../models/read.dart';
import '../models/user.dart';
import 'channel_model.dart';
import 'member.dart';
import 'message.dart';
part 'channel_state.g.dart';
/// The class that contains the information about a command
@JsonSerializable()
class ChannelState {
/// The channel to which this state belongs
final ChannelModel channel;
/// A paginated list of channel messages
final List<Message> messages;
/// A paginated list of channel members
final List<Member> members;
/// The count of users watching the channel
final int watcherCount;
/// A paginated list of users watching the channel
final List<User> watchers;
/// The list of channel reads
final List<Read> read;
/// Constructor used for json serialization
ChannelState({
this.channel,
this.messages = const [],
this.members = const [],
this.watcherCount,
this.watchers = const [],
this.read = const [],
});
/// Create a new instance from a json
static ChannelState fromJson(Map<String, dynamic> json) =>
_$ChannelStateFromJson(json);
/// Serialize to json
Map<String, dynamic> toJson() => _$ChannelStateToJson(this);
/// Creates a copy of [ChannelState] with specified attributes overridden.
ChannelState copyWith({
ChannelModel channel,
List<Message> messages,
List<Member> members,
int watcherCount,
List<User> watchers,
List<Read> read,
}) =>
ChannelState(
channel: channel ?? this.channel,
messages: messages ?? this.messages,
members: members ?? this.members,
watcherCount: watcherCount ?? this.watcherCount,
watchers: watchers ?? this.watchers,
read: read ?? this.read,
);
}