remove dart client example

This commit is contained in:
Neevash Ramdial
2021-01-15 12:19:41 -04:00
parent 4589dd8645
commit f4f6285cdb
73 changed files with 0 additions and 2739 deletions
@@ -1,83 +0,0 @@
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
import 'package:timeago/timeago.dart' as timeago;
import './channel_name_text.dart';
import 'channel_image.dart';
import 'stream_channel.dart';
class ChannelHeader extends StatelessWidget implements PreferredSizeWidget {
final bool showBackButton;
final VoidCallback onBackPressed;
ChannelHeader({
Key key,
this.showBackButton = true,
this.onBackPressed,
}) : preferredSize = Size.fromHeight(kToolbarHeight),
super(key: key);
@override
Widget build(BuildContext context) {
final streamChat = StreamChannel.of(context);
return AppBar(
leading: showBackButton ? _buildBackButton(context) : Container(),
actions: <Widget>[
Padding(
padding: const EdgeInsets.only(right: 10.0),
child: ChannelImage(channel: streamChat.channel),
),
],
centerTitle: true,
title: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
ChannelNameText(
channel: streamChat.channel,
),
_buildLastActive(context, streamChat.channel),
],
),
);
}
StatelessWidget _buildLastActive(BuildContext context, Channel channel) {
return (channel.lastMessageAt != null)
? Text(
'Active ${timeago.format(channel.lastMessageAt)}',
style: Theme.of(context).textTheme.caption,
)
: Container();
}
Padding _buildBackButton(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(14.0),
child: RawMaterialButton(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(4)),
elevation: 0,
highlightElevation: 0,
focusElevation: 0,
disabledElevation: 0,
hoverElevation: 0,
onPressed: () {
if (onBackPressed != null) {
onBackPressed();
} else {
Navigator.of(context).pop();
}
},
fillColor: Colors.black.withOpacity(.1),
padding: EdgeInsets.all(4),
child: Icon(
Icons.arrow_back_ios,
size: 15,
color: Colors.black,
),
),
);
}
@override
final Size preferredSize;
}
@@ -1,25 +0,0 @@
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
class ChannelImage extends StatelessWidget {
const ChannelImage({
Key key,
@required this.channel,
}) : super(key: key);
final Channel channel;
@override
Widget build(BuildContext context) {
return CircleAvatar(
radius: 20,
backgroundImage: channel.extraData.containsKey('image')
? CachedNetworkImageProvider(channel.extraData['image'] as String)
: null,
child: channel.extraData.containsKey('image')
? null
: Text(channel.config.name[0]),
);
}
}
@@ -1,138 +0,0 @@
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:stream_chat/stream_chat.dart';
import './connection_indicator.dart';
import './message_page.dart';
import './stream_channel.dart';
import 'channel_list_view.dart';
import 'channel_page_app_bar.dart';
import 'stream_chat.dart';
class ChannelListPage extends StatefulWidget {
ChannelListPage({
this.filter,
this.options,
this.sort,
this.pagination,
});
final Map<String, dynamic> filter;
final Map<String, dynamic> options;
final List<SortOption> sort;
final PaginationParams pagination;
@override
ChannelListPageState createState() => ChannelListPageState();
}
class ChannelListPageState extends State<ChannelListPage> {
String _selectedChannelId;
bool showSplit;
IndicatorController _indicatorController = IndicatorController();
@override
Widget build(BuildContext context) {
showSplit = MediaQuery.of(context).size.width > 1000;
return Flex(
direction: Axis.horizontal,
children: <Widget>[
Flexible(
flex: 1,
child: Scaffold(
bottomNavigationBar: ConnectionIndicator(
indicatorController: _indicatorController,
),
appBar: ChannelPageAppBar(),
body: ChannelListView(
channelWidget: MessagePage(),
options: widget.options,
filter: widget.filter,
pagination: widget.pagination,
sort: widget.sort,
onChannelTap: showSplit
? (channelClient, _) {
_navigateToChannel(context, channelClient);
}
: null,
),
floatingActionButton: FloatingActionButton(
onPressed: () {},
backgroundColor: Colors.white,
child: Icon(
Icons.send,
),
),
),
),
showSplit ? _buildMessageView(context) : Container(),
],
);
}
Flexible _buildMessageView(BuildContext context) {
return Flexible(
flex: 2,
child: _selectedChannelId == null
? Scaffold(
body: Center(
child: Text(
'Pick a channel to show the messages 💬',
style: Theme.of(context).textTheme.headline,
),
),
)
: StreamChannel(
channelClient: StreamChat.of(context)
.client
.state
.channels
.firstWhere((c) => c.id == _selectedChannelId),
child: MessagePage(),
),
);
}
void _navigateToChannel(
BuildContext context,
Channel channel,
) {
setState(() {
_selectedChannelId = channel.id;
});
}
@override
void initState() {
super.initState();
final streamChat = StreamChat.of(context);
streamChat.client.wsConnectionStatus.addListener(() {
if (streamChat.client.wsConnectionStatus.value ==
ConnectionStatus.disconnected) {
_indicatorController.showIndicator(
duration: Duration(minutes: 1),
color: Colors.red,
text: 'Disconnected',
);
} else if (streamChat.client.wsConnectionStatus.value ==
ConnectionStatus.connecting) {
_indicatorController.showIndicator(
duration: Duration(minutes: 1),
color: Colors.yellow,
text: 'Reconnecting',
);
} else if (streamChat.client.wsConnectionStatus.value ==
ConnectionStatus.connected) {
_indicatorController.showIndicator(
duration: Duration(seconds: 5),
color: Colors.green,
text: 'Connected',
);
streamChat.clearChannels();
streamChat.queryChannels();
}
});
}
}
@@ -1,208 +0,0 @@
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
import 'channel_preview.dart';
import 'stream_channel.dart';
import 'stream_chat.dart';
typedef ChannelTapCallback = void Function(Channel, Widget);
class ChannelListView extends StatefulWidget {
ChannelListView({
Key key,
this.filter,
this.options,
this.sort,
this.pagination,
this.onChannelTap,
this.channelWidget,
this.channelPreview,
}) : assert(channelWidget != null || onChannelTap != null),
super(key: key);
final Map<String, dynamic> filter;
final Map<String, dynamic> options;
final List<SortOption> sort;
final PaginationParams pagination;
final ScrollController _scrollController = ScrollController();
final ChannelTapCallback onChannelTap;
final Widget channelWidget;
final Widget channelPreview;
@override
_ChannelListViewState createState() => _ChannelListViewState();
}
class _ChannelListViewState extends State<ChannelListView> {
@override
Widget build(BuildContext context) {
final streamChat = StreamChat.of(context);
return RefreshIndicator(
onRefresh: () async {
streamChat.clearChannels();
return streamChat.queryChannels(
filter: widget.filter,
sortOptions: widget.sort,
paginationParams: widget.pagination,
options: widget.options,
);
},
child: StreamBuilder<List<Channel>>(
stream: streamChat.client.state.channelsStream,
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Center(
child: CircularProgressIndicator(),
);
}
if (snapshot.hasError) {
print((snapshot.error as Error).stackTrace);
return Center(
child: Text(snapshot.error.toString()),
);
}
final channelsStates = snapshot.data;
return ListView.custom(
physics: AlwaysScrollableScrollPhysics(),
controller: widget._scrollController,
childrenDelegate: SliverChildBuilderDelegate(
(context, i) {
return _itemBuilder(context, i, channelsStates);
},
childCount: (channelsStates.length * 2) + 1,
findChildIndexCallback: (key) {
final ValueKey<String> valueKey = key;
final index = channelsStates
.indexWhere((cs) => 'CHANNEL-${cs.id}' == valueKey.value);
return index != -1 ? (index * 2) : null;
},
),
);
}),
);
}
Widget _itemBuilder(context, int i, List<Channel> channelsStates) {
if (i % 2 != 0) {
return _separatorBuilder(context, i);
}
i = i ~/ 2;
final streamChat = StreamChat.of(context);
if (i < channelsStates.length) {
final channelState = channelsStates[i];
final channelClient = streamChat.client.state.channels
.firstWhere((c) => c.cid == channelState.cid);
ChannelTapCallback onTap;
if (widget.onChannelTap != null) {
onTap = widget.onChannelTap;
} else {
onTap = (client, _) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) {
return StreamChannel(
child: widget.channelWidget,
channelClient: client,
);
},
),
);
};
}
Widget child;
if (widget.channelPreview != null) {
child = Stack(
children: [
widget.channelPreview,
Positioned.fill(
child: Material(
color: Colors.transparent,
child: InkWell(
onTap: () {
onTap(channelClient, widget.channelWidget);
},
),
),
),
],
);
} else {
child = ChannelPreview(
onTap: (channelClient) {
onTap(channelClient, widget.channelWidget);
},
);
}
return StreamChannel(
key: ValueKey<String>('CHANNEL-${channelClient?.id}'),
child: child,
channelClient: channelClient,
);
} else {
return _buildQueryProgressIndicator(context, streamChat);
}
}
Widget _buildQueryProgressIndicator(context, StreamChat streamChat) {
return StreamBuilder<bool>(
stream: streamChat.queryChannelsLoading,
initialData: false,
builder: (context, snapshot) {
return Container(
height: 100,
padding: EdgeInsets.all(32),
child: Center(
child: snapshot.data ? CircularProgressIndicator() : Container(),
),
);
});
}
Widget _separatorBuilder(context, i) {
return Container(
height: 1,
color: Colors.black.withOpacity(0.1),
margin: EdgeInsets.symmetric(horizontal: 16),
);
}
void _listenChannelPagination(StreamChat streamChat) {
if (widget._scrollController.position.maxScrollExtent ==
widget._scrollController.position.pixels) {
streamChat.queryChannels(
filter: widget.filter,
sortOptions: widget.sort,
paginationParams: widget.pagination.copyWith(
offset: streamChat.channels.length,
),
options: widget.options,
);
}
}
@override
void initState() {
super.initState();
final streamChat = StreamChat.of(context);
streamChat.queryChannels(
filter: widget.filter,
sortOptions: widget.sort,
paginationParams: widget.pagination,
options: widget.options,
);
widget._scrollController.addListener(() {
_listenChannelPagination(streamChat);
});
}
}
@@ -1,19 +0,0 @@
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
class ChannelNameText extends StatelessWidget {
const ChannelNameText({
Key key,
this.channel,
}) : super(key: key);
final Channel channel;
@override
Widget build(BuildContext context) {
return Text(
channel.extraData['name'] as String ?? channel.config.name,
style: Theme.of(context).textTheme.body2,
);
}
}
@@ -1,41 +0,0 @@
import 'package:flutter/material.dart';
class ChannelPageAppBar extends StatelessWidget implements PreferredSizeWidget {
ChannelPageAppBar({
Key key,
}) : preferredSize = Size.fromHeight(kToolbarHeight),
super(key: key);
@override
Widget build(BuildContext context) {
return SafeArea(
child: Material(
elevation: 4,
child: Padding(
padding: EdgeInsets.symmetric(vertical: 5, horizontal: 30),
child: Container(
decoration: BoxDecoration(
color: Colors.black.withAlpha(5),
borderRadius: BorderRadius.circular(32.0),
border: Border.all(color: Colors.black.withOpacity(.2))),
child: Padding(
padding: const EdgeInsets.only(left: 8.0),
child: TextField(
style: Theme.of(context).textTheme.body1,
autofocus: false,
decoration: InputDecoration(
hintText: 'Search',
prefixText: ' ',
border: InputBorder.none,
),
),
),
),
),
),
);
}
@override
final Size preferredSize;
}
@@ -1,139 +0,0 @@
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:jiffy/jiffy.dart';
import 'package:stream_chat/stream_chat.dart';
import 'channel_image.dart';
import 'channel_name_text.dart';
import 'stream_channel.dart';
import 'stream_chat.dart';
class ChannelPreview extends StatelessWidget {
final void Function(Channel) onTap;
const ChannelPreview({
Key key,
this.onTap,
}) : super(key: key);
@override
Widget build(BuildContext context) {
final streamChannel = StreamChannel.of(context);
return _buildChannelPreview(
context,
streamChannel,
);
}
StreamChannel _buildChannelPreview(
BuildContext context,
StreamChannelState streamChannel,
) {
final channelClient = StreamChat.of(context)
.client
.state
.channels
.firstWhere((c) => c.cid == streamChannel.channel.cid);
return StreamChannel(
channelClient: channelClient,
child: ListTile(
onTap: () {
onTap(channelClient);
},
leading: ChannelImage(
channel: streamChannel.channel,
),
title: ChannelNameText(
channel: streamChannel.channel,
),
subtitle: _buildSubtitle(
streamChannel,
),
trailing: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
_buildDate(context, streamChannel.channel.lastMessageAt),
],
),
),
);
}
Text _buildDate(BuildContext context, DateTime lastMessageAt) {
String stringDate;
final now = DateTime.now();
if (now.year != lastMessageAt.year ||
now.month != lastMessageAt.month ||
now.day != lastMessageAt.day) {
stringDate = Jiffy(lastMessageAt.toLocal()).format('dd/MM/yyyy');
} else {
stringDate = Jiffy(lastMessageAt.toLocal()).format('HH:mm');
}
return Text(
stringDate,
style: Theme.of(context).textTheme.caption,
);
}
Widget _buildSubtitle(
StreamChannelState streamChannel,
) {
return StreamBuilder<List<User>>(
stream: streamChannel.channelClient.state.typingEventsStream,
initialData: [],
builder: (context, snapshot) {
final typings = snapshot.data;
final opacity =
streamChannel.channelClient.state.unreadCount > .0 ? 1.0 : 0.5;
return typings.isNotEmpty
? _buildTypings(typings, context, opacity)
: _buildLastMessage(context, streamChannel, opacity);
});
}
Widget _buildLastMessage(
BuildContext context, StreamChannelState streamChannel, double opacity) {
final lastMessage = streamChannel.channel.state.messages.isNotEmpty
? streamChannel.channel.state.messages.last
: null;
if (lastMessage == null) {
return SizedBox.fromSize(
size: Size.zero,
);
}
final prefix = lastMessage.attachments
.map((e) {
if (e.type == 'image') {
return '📷';
} else if (e.type == 'video') {
return '🎬';
}
return null;
})
.where((e) => e != null)
.join(' ');
return Text(
'$prefix ${lastMessage.text ?? ''}',
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.caption.copyWith(
color: Colors.black.withOpacity(opacity),
),
);
}
Text _buildTypings(List<User> typings, BuildContext context, double opacity) {
return Text(
'${typings.map((u) => u.extraData.containsKey('name') ? u.extraData['name'] : u.id).join(',')} ${typings.length == 1 ? 'is' : 'are'} typing...',
maxLines: 1,
style: Theme.of(context).textTheme.caption.copyWith(
color: Colors.black.withOpacity(opacity),
),
);
}
}
@@ -1,100 +0,0 @@
import 'package:flutter/material.dart';
class ConnectionIndicator extends StatefulWidget {
final IndicatorController indicatorController;
const ConnectionIndicator({
Key key,
this.indicatorController,
}) : super(key: key);
@override
_ConnectionIndicatorState createState() => _ConnectionIndicatorState();
}
class _ConnectionIndicatorState extends State<ConnectionIndicator> {
double _height = 0;
String _text;
Color _color;
VoidCallback _listener;
@override
Widget build(BuildContext context) {
return AnimatedContainer(
duration: Duration(milliseconds: 300),
height: _height,
child: Container(
width: double.infinity,
child: Material(
color: _color ?? Theme.of(context).snackBarTheme.backgroundColor,
child: Center(
child: Text(_text ?? ''),
),
),
),
);
}
@override
void initState() {
super.initState();
_listener = () {
final values = widget.indicatorController.indicatorValues.value;
if (mounted) {
setState(() {
_height = 30;
_text = values.text;
_color = values.color;
});
}
if (values.duration != null) {
Future.delayed(values.duration, () {
if (mounted) {
setState(() {
_height = 0;
_text = '';
});
}
});
}
};
widget.indicatorController.indicatorValues.addListener(_listener);
}
@override
void dispose() {
widget.indicatorController.indicatorValues.removeListener(_listener);
super.dispose();
}
}
class IndicatorValues {
final String text;
final Color color;
final Duration duration;
IndicatorValues({
this.duration,
this.text,
this.color,
});
}
class IndicatorController {
ValueNotifier<IndicatorValues> indicatorValues = ValueNotifier(null);
void showIndicator({
Duration duration,
Color color,
String text,
}) {
indicatorValues.value = IndicatorValues(
text: text,
color: color,
duration: duration,
);
}
}
@@ -1,94 +0,0 @@
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
import 'channel_list_page.dart';
import 'stream_chat.dart';
void main() async {
final client = Client(
"qk4nn7rpcn75",
logLevel: Level.INFO,
);
await client.setUser(
User(id: "wild-breeze-7"),
'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoid2lsZC1icmVlemUtNyJ9.VM2EX1EXOfgqa-bTH_3JzeY0T99ngWzWahSauP3dBMo',
);
runApp(StreamChat(
child: MyApp(),
client: client,
));
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Stream Chat Example',
home: ChatLoader(),
theme: ThemeData(
scaffoldBackgroundColor: Color(0xfff1f1f3),
primaryColor: Color(0xfff1f1f3),
accentColor: Color(0xff006bff),
iconTheme: IconThemeData(
color: Color(0xff006bff),
),
floatingActionButtonTheme: FloatingActionButtonThemeData(
foregroundColor: Color(0xff006bff),
),
backgroundColor: Color(0xfff1f1f3),
canvasColor: Color(0xfff1f1f3),
),
);
}
@override
void dispose() {
StreamChat.of(context).dispose();
super.dispose();
}
}
class ChatLoader extends StatelessWidget {
@override
Widget build(BuildContext context) {
final streamChat = StreamChat.of(context);
return StreamBuilder<User>(
stream: streamChat.userStream,
builder: (context, snapshot) {
if (snapshot.hasError) {
return Scaffold(
body: Center(
child: Text('${snapshot.error}'),
),
);
} else if (!snapshot.hasData) {
return Scaffold(
body: Center(
child: CircularProgressIndicator(),
),
);
} else {
return ChannelListPage(
filter: {
'members': {
'\$in': [StreamChat.of(context).user.id],
}
},
sort: [SortOption("last_message_at")],
pagination: PaginationParams(
limit: 20,
),
);
}
},
);
}
}
@@ -1,137 +0,0 @@
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
import 'stream_channel.dart';
class MessageInput extends StatefulWidget {
MessageInput({
Key key,
this.onMessageSent,
this.parent,
}) : super(key: key);
final void Function(Message) onMessageSent;
final Message parent;
@override
_MessageInputState createState() => _MessageInputState();
}
class _MessageInputState extends State<MessageInput> {
final _textController = TextEditingController();
bool _messageIsPresent = false;
bool _typingStarted = false;
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
width: MediaQuery.of(context).size.width,
padding: EdgeInsets.all(2),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
gradient: _typingStarted
? LinearGradient(colors: [Color(0xFF00AEFF), Color(0xFF0076FF)])
: null,
),
child: Container(
decoration: BoxDecoration(
color: Theme.of(context).canvasColor,
borderRadius: BorderRadius.circular(10.0),
),
child: Container(
decoration: BoxDecoration(
color: Colors.black.withAlpha(5),
borderRadius: BorderRadius.circular(10.0),
border: Border.all(color: Colors.black.withOpacity(.2)),
),
child: Flex(
direction: Axis.horizontal,
children: <Widget>[
Expanded(
child: TextField(
minLines: null,
maxLines: null,
onSubmitted: (_) {
_sendMessage(context);
},
controller: _textController,
onChanged: (s) {
StreamChannel.of(context).channelClient.keyStroke();
setState(() {
_messageIsPresent = s.trim().isNotEmpty;
});
},
onTap: () {
setState(() {
_typingStarted = true;
});
},
style: Theme.of(context).textTheme.body1,
autofocus: false,
decoration: InputDecoration(
hintText: 'Write a message',
prefixText: ' ',
border: InputBorder.none,
),
),
),
AnimatedCrossFade(
crossFadeState: _messageIsPresent
? CrossFadeState.showFirst
: CrossFadeState.showSecond,
firstChild: _buildSendButton(context),
secondChild: Container(),
duration: Duration(milliseconds: 300),
alignment: Alignment.center,
),
],
),
),
),
),
);
}
IconButton _buildSendButton(BuildContext context) {
return IconButton(
onPressed: () {
_sendMessage(context);
},
icon: Icon(
Icons.send,
),
);
}
void _sendMessage(BuildContext context) {
final text = _textController.text.trim();
if (text.isEmpty) {
return;
}
_textController.clear();
setState(() {
_messageIsPresent = false;
_typingStarted = false;
});
FocusScope.of(context).unfocus();
StreamChannel.of(context)
.channelClient
.sendMessage(
Message(
parentId: widget.parent?.id,
text: text,
),
)
.then((_) {
if (widget.onMessageSent != null) {
widget.onMessageSent(Message(text: text));
}
});
}
}
@@ -1,280 +0,0 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_widgets/flutter_widgets.dart';
import 'package:stream_chat/stream_chat.dart';
import 'message_widget.dart';
import 'stream_channel.dart';
typedef MessageBuilder = Widget Function(BuildContext, Message, int index);
typedef ParentMessageBuilder = Widget Function(BuildContext, Message);
typedef OnThreadSelectCallback = void Function(Message parent);
class MessageListView extends StatefulWidget {
MessageListView({
Key key,
MessageBuilder messageBuilder,
this.parentMessageBuilder,
this.parentMessage,
this.onThreadSelect,
}) : _messageBuilder = messageBuilder,
super(key: key);
final MessageBuilder _messageBuilder;
final ParentMessageBuilder parentMessageBuilder;
final OnThreadSelectCallback onThreadSelect;
final Message parentMessage;
@override
_MessageListViewState createState() => _MessageListViewState();
}
class _MessageListViewState extends State<MessageListView> {
static const _newMessageLoadingOffset = 100;
final ScrollController _scrollController = ScrollController();
bool _isBottom = true;
bool _topWasVisible = false;
List<Message> _messages = [];
List<Message> _newMessageList = [];
@override
Widget build(BuildContext context) {
final streamChannel = StreamChannel.of(context);
/// TODO: find a better solution when (https://github.com/flutter/flutter/issues/21023) is fixed
return NotificationListener<ScrollNotification>(
onNotification: (_) {
if (_scrollController.offset < 150 && _newMessageList.isNotEmpty) {
setState(() {
_messages.insertAll(0, _newMessageList);
_newMessageList.clear();
});
}
return true;
},
child: ListView.custom(
physics: AlwaysScrollableScrollPhysics(),
controller: _scrollController,
reverse: true,
childrenDelegate: SliverChildBuilderDelegate(
(context, i) {
if (i == _messages.length + 1) {
if (widget.parentMessage != null) {
if (widget.parentMessageBuilder != null) {
return widget.parentMessageBuilder(
context, widget.parentMessage);
} else {
return Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
MessageWidget(
key: ValueKey<String>(
'PARENT-MESSAGE-${widget.parentMessage.id}'),
previousMessage: null,
message: widget.parentMessage.copyWith(replyCount: 0),
nextMessage: null,
onThreadSelect: widget.onThreadSelect,
),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 32),
child: Container(
padding: const EdgeInsets.all(8),
child: Text(
'Start of a new thread',
textAlign: TextAlign.center,
),
color: Theme.of(context).primaryColorLight,
),
),
],
);
}
} else {
return SizedBox();
}
}
if (i == _messages.length) {
return _buildLoadingIndicator(streamChannel);
}
final message = _messages[i];
if (widget._messageBuilder != null) {
return widget._messageBuilder(context, message, i);
}
final previousMessage =
i < _messages.length - 1 ? _messages[i + 1] : null;
final nextMessage = i > 0 ? _messages[i - 1] : null;
if (i == 0) {
return _buildBottomMessage(
streamChannel,
previousMessage,
message,
context,
);
}
if (i == _messages.length - 1) {
return _buildTopMessage(
message,
nextMessage,
streamChannel,
context,
);
}
return MessageWidget(
key: ValueKey<String>('MESSAGE-${message.id}'),
previousMessage: previousMessage,
message: message,
nextMessage: nextMessage,
onThreadSelect: widget.onThreadSelect,
);
},
childCount: _messages.length + 2,
findChildIndexCallback: (key) {
final ValueKey<String> valueKey = key;
final index = _messages
.indexWhere((m) => 'MESSAGE-${m.id}' == valueKey.value);
return index != -1 ? index : null;
},
),
),
);
}
Container _buildLoadingIndicator(StreamChannelState streamChannel) {
return Container(
height: 50,
child: StreamBuilder<bool>(
stream: streamChannel.queryMessage,
initialData: false,
builder: (context, snapshot) {
if (snapshot.hasError) {
print((snapshot.error as Error).stackTrace.toString());
return Center(
child: Text(snapshot.error.toString()),
);
}
if (!snapshot.data) {
return Container();
}
return Center(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: CircularProgressIndicator(),
),
);
}),
);
}
Widget _buildTopMessage(
Message message,
Message nextMessage,
StreamChannelState streamChannelState,
BuildContext context,
) {
return VisibilityDetector(
key: ValueKey<String>('TOP-MESSAGE'),
child: MessageWidget(
key: ValueKey<String>('MESSAGE-${message.id}'),
previousMessage: null,
message: message,
nextMessage: nextMessage,
onThreadSelect: widget.onThreadSelect,
),
onVisibilityChanged: (visibility) {
final topIsVisible = visibility.visibleBounds != Rect.zero;
if (topIsVisible && !_topWasVisible) {
streamChannelState.queryMessages();
}
_topWasVisible = topIsVisible;
},
);
}
Widget _buildBottomMessage(
StreamChannelState channelBloc,
Message previousMessage,
Message message,
BuildContext context,
) {
return VisibilityDetector(
key: ValueKey<String>('BOTTOM-MESSAGE'),
onVisibilityChanged: (visibility) {
_isBottom = visibility.visibleBounds != Rect.zero;
if (_isBottom) {
if (channelBloc.channelClient.state.unreadCount > 0) {
channelBloc.channelClient.markRead();
}
}
},
child: MessageWidget(
key: ValueKey<String>('MESSAGE-${message.id}'),
previousMessage: previousMessage,
message: message,
nextMessage: null,
onThreadSelect: widget.onThreadSelect,
),
);
}
StreamSubscription _streamListener;
@override
void initState() {
super.initState();
final streamChannel = StreamChannel.of(context);
if (streamChannel.channelClient.state.unreadCount > 0) {
streamChannel.channelClient.markRead();
}
Stream<List<Message>> stream;
if (widget.parentMessage == null) {
stream = streamChannel.channelStateStream.map((c) => c.messages);
} else {
streamChannel.getReplies(widget.parentMessage.id);
stream = streamChannel.channelClient.state.threadsStream
.where((threads) => threads.containsKey(widget.parentMessage.id))
.map((threads) => threads[widget.parentMessage.id]);
}
_streamListener = stream.listen((newMessages) {
newMessages = newMessages.reversed.toList();
if (_messages.isEmpty || newMessages.first.id != _messages.first.id) {
if (!_scrollController.hasClients ||
_scrollController.offset < _newMessageLoadingOffset) {
setState(() {
_messages = newMessages;
});
} else if (newMessages.first.user.id ==
streamChannel.channelClient.client.state.user.id) {
_scrollController.jumpTo(0);
WidgetsBinding.instance.addPostFrameCallback((_) {
setState(() {
_messages = newMessages;
});
});
} else {
_newMessageList = newMessages;
}
} else {
setState(() {
_messages = newMessages;
});
}
});
}
@override
void dispose() {
_streamListener.cancel();
super.dispose();
}
}
@@ -1,110 +0,0 @@
import 'package:animations/animations.dart';
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
import './channel_header.dart';
import 'connection_indicator.dart';
import 'message_input.dart';
import 'message_list_view.dart';
import 'stream_channel.dart';
import 'stream_chat.dart';
class MessagePage extends StatefulWidget {
final PreferredSizeWidget _channelHeader;
const MessagePage({
Key key,
PreferredSizeWidget channelHeader,
this.parentMessage,
}) : _channelHeader = channelHeader,
super(key: key);
final Message parentMessage;
@override
_MessagePageState createState() => _MessagePageState();
}
class _MessagePageState extends State<MessagePage> {
IndicatorController _indicatorController = IndicatorController();
@override
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomInset: true,
appBar: widget._channelHeader ?? ChannelHeader(),
body: Column(
children: <Widget>[
ConnectionIndicator(
indicatorController: _indicatorController,
),
Expanded(
child: MessageListView(
parentMessage: widget.parentMessage,
onThreadSelect: (message) {
Navigator.of(context).push(
PageRouteBuilder(
pageBuilder: (_, __, ___) => StreamChannel(
channelClient: StreamChannel.of(context).channelClient,
child: MessagePage(
parentMessage: message,
channelHeader: widget._channelHeader,
),
),
transitionsBuilder: (
_,
animation,
secondaryAnimation,
child,
) =>
SharedAxisTransition(
child: child,
animation: animation,
secondaryAnimation: secondaryAnimation,
transitionType: SharedAxisTransitionType.horizontal,
),
),
);
},
),
),
MessageInput(),
],
),
);
}
@override
void initState() {
super.initState();
final streamChat = StreamChat.of(context);
streamChat.client.wsConnectionStatus.addListener(() {
if (streamChat.client.wsConnectionStatus.value ==
ConnectionStatus.disconnected) {
_indicatorController.showIndicator(
duration: Duration(minutes: 1),
color: Colors.red,
text: 'Disconnected',
);
} else if (streamChat.client.wsConnectionStatus.value ==
ConnectionStatus.connecting) {
_indicatorController.showIndicator(
duration: Duration(minutes: 1),
color: Colors.yellow,
text: 'Reconnecting',
);
} else if (streamChat.client.wsConnectionStatus.value ==
ConnectionStatus.connected) {
_indicatorController.showIndicator(
duration: Duration(seconds: 5),
color: Colors.green,
text: 'Connected',
);
final streamChat = StreamChannel.of(context);
streamChat.queryMessages();
}
});
}
}
@@ -1,353 +0,0 @@
import 'package:cached_network_image/cached_network_image.dart';
import 'package:chewie/chewie.dart';
import 'package:date_format/date_format.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_markdown/flutter_markdown.dart';
import 'package:stream_chat/stream_chat.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:video_player/video_player.dart';
import 'message_list_view.dart';
import 'stream_chat.dart';
import 'user_avatar.dart';
class MessageWidget extends StatefulWidget {
const MessageWidget({
Key key,
@required this.previousMessage,
@required this.message,
@required this.nextMessage,
this.onThreadSelect,
}) : super(key: key);
final Message previousMessage;
final Message message;
final Message nextMessage;
final OnThreadSelectCallback onThreadSelect;
@override
_MessageWidgetState createState() => _MessageWidgetState();
}
class _MessageWidgetState extends State<MessageWidget>
with AutomaticKeepAliveClientMixin {
final Map<String, ChangeNotifier> _videoControllers = {};
final Map<String, ChangeNotifier> _chuwieControllers = {};
@override
Widget build(BuildContext context) {
super.build(context);
final streamChat = StreamChat.of(context);
final currentUserId = streamChat.user.id;
final messageUserId = widget.message.user.id;
final previousUserId = widget.previousMessage?.user?.id;
final nextUserId = widget.nextMessage?.user?.id;
final isMyMessage = messageUserId == currentUserId;
final isLastUser = previousUserId == messageUserId;
final isNextUser = nextUserId == messageUserId;
final alignment =
isMyMessage ? Alignment.centerRight : Alignment.centerLeft;
var row = <Widget>[
Column(
crossAxisAlignment:
isMyMessage ? CrossAxisAlignment.end : CrossAxisAlignment.start,
children: <Widget>[
_buildBubble(context, isMyMessage, isLastUser),
widget.message.replyCount > 0
? GestureDetector(
onTap: () {
if (widget.onThreadSelect != null) {
widget.onThreadSelect(widget.message);
}
},
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 2.0),
child: Row(
children: <Widget>[
Text(
'Replies: ${widget.message.replyCount}',
style: Theme.of(context)
.textTheme
.subtitle
.copyWith(color: Colors.blue),
),
Icon(
Icons.subdirectory_arrow_left,
color: Colors.black12,
),
],
),
),
)
: Container(),
isNextUser ? Container() : _buildTimestamp(isMyMessage, alignment),
],
),
isNextUser
? Container(
width: 40,
)
: Padding(
padding: EdgeInsets.only(
left: isMyMessage ? 8.0 : 0,
right: isMyMessage ? 0 : 8.0,
),
child: UserAvatar(user: widget.message.user),
),
];
if (!isMyMessage) {
row = row.reversed.toList();
}
return Container(
padding: const EdgeInsets.symmetric(horizontal: 10.0),
margin: EdgeInsets.only(
top: isLastUser ? 5 : 24,
bottom: widget.nextMessage == null ? 30 : 0,
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.end,
mainAxisAlignment:
isMyMessage ? MainAxisAlignment.end : MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: row,
),
);
}
Widget _buildBubble(
BuildContext context,
bool isMyMessage,
bool isLastUser,
) {
var nOfAttachmentWidgets = 0;
final column = Column(
crossAxisAlignment:
isMyMessage ? CrossAxisAlignment.end : CrossAxisAlignment.start,
children: widget.message.attachments.map((attachment) {
nOfAttachmentWidgets++;
Widget attachmentWidget;
if (attachment.type == 'video') {
attachmentWidget = _buildVideo(attachment, isMyMessage, isLastUser);
} else if (attachment.type == 'image' || attachment.type == 'giphy') {
attachmentWidget = _buildImage(isMyMessage, isLastUser, attachment);
}
if (attachmentWidget != null) {
final boxDecoration = _buildBoxDecoration(isMyMessage, isLastUser)
.copyWith(color: Color(0xffebebeb));
return ClipRRect(
borderRadius: boxDecoration.borderRadius,
child: Container(
decoration: boxDecoration,
constraints: BoxConstraints.loose(Size.fromWidth(300)),
child: Stack(
children: <Widget>[
Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
attachmentWidget,
attachment.title != null
? Container(
constraints:
BoxConstraints.loose(Size.fromHeight(70)),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
attachment.title,
overflow: TextOverflow.ellipsis,
style: Theme.of(context)
.textTheme
.subtitle
.copyWith(color: Colors.blue),
),
Text(
Uri.parse(attachment.thumbUrl)
.authority
.split('.')
.reversed
.take(2)
.toList()
.reversed
.join('.'),
overflow: TextOverflow.ellipsis,
style:
Theme.of(context).textTheme.caption,
),
],
),
),
color: Color(0xffebebeb),
)
: Container(),
],
),
attachment.type == 'image' && attachment.titleLink != null
? Positioned.fill(
child: Material(
color: Colors.transparent,
child: InkWell(
onTap: () => _launchURL(attachment.titleLink),
),
),
)
: SizedBox.fromSize(
size: Size.zero,
),
],
),
margin: EdgeInsets.only(
top: nOfAttachmentWidgets > 1 ? 5 : 0,
),
),
);
}
nOfAttachmentWidgets--;
return Container();
}).toList(),
);
if (widget.message.text.trim().isNotEmpty) {
column.children.add(Container(
margin: EdgeInsets.only(
top: nOfAttachmentWidgets > 0 ? 5 : 0,
),
decoration: _buildBoxDecoration(
isMyMessage, isLastUser || nOfAttachmentWidgets > 0),
padding: EdgeInsets.all(10),
constraints: BoxConstraints.loose(Size.fromWidth(300)),
child: MarkdownBody(
data: '${widget.message.text}',
onTapLink: (link) {
_launchURL(link);
},
styleSheet: MarkdownStyleSheet.fromTheme(Theme.of(context)),
),
));
}
return column;
}
Widget _buildImage(
bool isMyMessage,
bool isLastUser,
Attachment attachment,
) {
return CachedNetworkImage(
imageUrl: attachment.thumbUrl ?? attachment.imageUrl,
fit: BoxFit.cover,
);
}
Widget _buildVideo(
Attachment attachment,
bool isMyMessage,
bool isLastUser,
) {
VideoPlayerController videoController;
if (_videoControllers.containsKey(attachment.assetUrl)) {
videoController = _videoControllers[attachment.assetUrl];
} else {
videoController = VideoPlayerController.network(attachment.assetUrl);
_videoControllers[attachment.assetUrl] = videoController;
}
ChewieController chewieController;
if (_chuwieControllers.containsKey(attachment.assetUrl)) {
chewieController = _chuwieControllers[attachment.assetUrl];
} else {
chewieController = ChewieController(
videoPlayerController: videoController,
autoInitialize: true,
errorBuilder: (_, e) {
return Stack(
children: <Widget>[
Container(
decoration: BoxDecoration(
image: DecorationImage(
fit: BoxFit.cover,
image: CachedNetworkImageProvider(
attachment.thumbUrl,
),
),
),
),
Material(
color: Colors.transparent,
child: InkWell(
onTap: () => _launchURL(attachment.titleLink),
),
),
],
);
});
_chuwieControllers[attachment.assetUrl] = chewieController;
}
return Chewie(
key: ValueKey<String>(
'ATTACHMENT-${attachment.title}-${widget.message.id}'),
controller: chewieController,
);
}
Future<void> _launchURL(String url) async {
if (await canLaunch(url)) {
await launch(url);
} else {
Scaffold.of(context).showSnackBar(
SnackBar(
content: Text('Cannot launch the url'),
),
);
}
}
@override
void dispose() {
_videoControllers.values.forEach((element) {
element.dispose();
});
super.dispose();
}
Widget _buildTimestamp(bool isMyMessage, Alignment alignment) {
return Padding(
padding: const EdgeInsets.only(top: 5.0),
child: Text(
formatDate(widget.message.createdAt.toLocal(), [HH, ':', nn]),
),
);
}
BoxDecoration _buildBoxDecoration(bool isMyMessage, bool isLastUser) {
return BoxDecoration(
border: isMyMessage ? null : Border.all(color: Colors.black.withAlpha(8)),
borderRadius: BorderRadius.only(
topLeft: Radius.circular((isMyMessage || !isLastUser) ? 16 : 2),
bottomLeft: Radius.circular(isMyMessage ? 16 : 2),
topRight: Radius.circular((isMyMessage && isLastUser) ? 2 : 16),
bottomRight: Radius.circular(isMyMessage ? 2 : 16),
),
color: isMyMessage ? Color(0xffebebeb) : Colors.white,
);
}
@override
bool get wantKeepAlive {
return widget.message.attachments.isNotEmpty;
}
}
@@ -1,128 +0,0 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:rxdart/rxdart.dart';
import 'package:stream_chat/stream_chat.dart';
class StreamChannel extends StatefulWidget {
StreamChannel({
Key key,
@required this.child,
@required this.channelClient,
}) : super(
key: key,
);
final Widget child;
final Channel channelClient;
static StreamChannelState of(BuildContext context) {
StreamChannelState streamChannelState;
streamChannelState = context.findAncestorStateOfType<StreamChannelState>();
if (streamChannelState == null) {
throw Exception(
'You must have a StreamChannel widget at the top of your widget tree');
}
return streamChannelState;
}
@override
StreamChannelState createState() => StreamChannelState();
}
class StreamChannelState extends State<StreamChannel> {
StreamChannelState();
Channel get channelClient => widget.channelClient;
Channel get channel => widget.channelClient;
Stream<ChannelState> get channelStateStream =>
widget.channelClient.state.channelStateStream;
final BehaviorSubject<bool> _queryMessageController = BehaviorSubject();
Stream<bool> get queryMessage => _queryMessageController.stream;
void queryMessages() {
_queryMessageController.add(true);
String firstId;
if (channel.state.messages.isNotEmpty) {
firstId = channel.state.messages.first.id;
}
widget.channelClient
.query(
messagesPagination: PaginationParams(
lessThan: firstId,
limit: 100,
),
)
.then((res) {
_queryMessageController.add(false);
}).catchError((e, stack) {
_queryMessageController.addError(e, stack);
});
}
Future<void> getReplies(String parentId) async {
_queryMessageController.add(true);
String firstId;
if (widget.channelClient.state.threads.containsKey(parentId)) {
firstId = widget.channelClient.state.threads[parentId].first.id;
}
return widget.channelClient
.getReplies(
parentId,
PaginationParams(
lessThan: firstId,
limit: 100,
),
)
.then((res) {
_queryMessageController.add(false);
}).catchError((e, stack) {
_queryMessageController.addError(e, stack);
});
}
@override
void dispose() {
_queryMessageController.close();
super.dispose();
}
@override
Widget build(BuildContext context) {
if (widget.channelClient == null) {
return Center(
child: CircularProgressIndicator(),
);
}
return FutureBuilder<bool>(
future: widget.channelClient.initialized,
initialData: widget.channelClient.state != null,
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Scaffold(
body: Center(
child: CircularProgressIndicator(),
),
);
} else if (snapshot.hasError) {
return Center(
child: Text(snapshot.error),
);
} else {
return widget.child;
}
},
);
}
}
@@ -1,95 +0,0 @@
import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:rxdart/rxdart.dart';
import 'package:stream_chat/stream_chat.dart';
class StreamChat extends InheritedWidget {
final Client client;
final List<StreamSubscription> _subscriptions = [];
StreamChat({
Key key,
@required this.client,
@required Widget child,
}) : super(
key: key,
child: child,
) {
_subscriptions.add(client.on(EventType.messageNew).listen((Event e) {
final index = channels.indexWhere((c) => c.cid == e.cid);
if (index > 0) {
final channel = channels.removeAt(index);
channels.insert(0, channel);
}
}));
}
User get user => client.state.user;
Stream<User> get userStream => client.state.userStream;
final List<Channel> channels = [];
final BehaviorSubject<bool> _queryChannelsLoadingController =
BehaviorSubject.seeded(false);
Stream<bool> get queryChannelsLoading =>
_queryChannelsLoadingController.stream;
Future<void> queryChannels({
Map<String, dynamic> filter,
List<SortOption> sortOptions,
PaginationParams paginationParams,
Map<String, dynamic> options,
}) async {
if (_queryChannelsLoadingController.value) {
return;
}
_queryChannelsLoadingController.sink.add(true);
try {
client.queryChannels(
filter: filter,
sort: sortOptions,
options: options,
paginationParams: paginationParams,
);
} finally {
_queryChannelsLoadingController.sink.add(false);
}
}
void clearChannels() {
channels.clear();
}
void dispose() {
client.dispose();
_subscriptions.forEach((s) => s.cancel());
_queryChannelsLoadingController.close();
}
@override
bool updateShouldNotify(InheritedWidget oldWidget) {
return true;
}
static StreamChat of(BuildContext context, [bool listen = false]) {
StreamChat streamChat;
if (listen) {
streamChat = context.dependOnInheritedWidgetOfExactType<StreamChat>();
} else {
streamChat = context.findAncestorWidgetOfExactType<StreamChat>();
}
if (streamChat == null) {
throw Exception(
'You must have a StreamChat widget at the top of your widget tree');
}
return streamChat;
}
}
@@ -1,29 +0,0 @@
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:stream_chat/stream_chat.dart';
class UserAvatar extends StatelessWidget {
const UserAvatar({
Key key,
@required this.user,
this.radius = 16,
}) : super(key: key);
final User user;
final double radius;
@override
Widget build(BuildContext context) {
return CircleAvatar(
radius: this.radius,
backgroundImage: user.extraData.containsKey('image')
? CachedNetworkImageProvider(user.extraData['image'] as String)
: null,
child: user.extraData.containsKey('image')
? null
: Text(user?.extraData?.containsKey('name') ?? false
? user.extraData['name'][0]
: ''),
);
}
}