Salvatore Giordano
418 lines
16 KiB
Dart
418 lines
16 KiB
Dart
import 'dart:async';
|
|
|
|
import 'package:flutter/material.dart';
|
|
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
|
|
|
|
import 'chips_input_text_field.dart';
|
|
import 'main.dart';
|
|
import 'routes/routes.dart';
|
|
|
|
class NewChatScreen extends StatefulWidget {
|
|
@override
|
|
_NewChatScreenState createState() => _NewChatScreenState();
|
|
}
|
|
|
|
class _NewChatScreenState extends State<NewChatScreen> {
|
|
final _chipInputTextFieldStateKey =
|
|
GlobalKey<ChipInputTextFieldState<User>>();
|
|
|
|
TextEditingController _controller;
|
|
|
|
ChipInputTextFieldState get _chipInputTextFieldState =>
|
|
_chipInputTextFieldStateKey.currentState;
|
|
|
|
String _userNameQuery = '';
|
|
|
|
final _selectedUsers = <User>{};
|
|
|
|
final _searchFocusNode = FocusNode();
|
|
final _messageInputFocusNode = FocusNode();
|
|
|
|
bool _isSearchActive = false;
|
|
|
|
Channel channel;
|
|
|
|
Timer _debounce;
|
|
|
|
bool _showUserList = true;
|
|
|
|
void _userNameListener() {
|
|
if (_debounce?.isActive ?? false) _debounce.cancel();
|
|
_debounce = Timer(const Duration(milliseconds: 350), () {
|
|
if (mounted)
|
|
setState(() {
|
|
_userNameQuery = _controller.text;
|
|
_isSearchActive = _userNameQuery.isNotEmpty;
|
|
});
|
|
});
|
|
}
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
channel = StreamChat.of(context).client.channel('messaging');
|
|
_controller = TextEditingController()..addListener(_userNameListener);
|
|
|
|
_searchFocusNode.addListener(() async {
|
|
if (_searchFocusNode.hasFocus && !_showUserList) {
|
|
setState(() {
|
|
_showUserList = true;
|
|
});
|
|
}
|
|
});
|
|
|
|
_messageInputFocusNode.addListener(() async {
|
|
if (_messageInputFocusNode.hasFocus && _selectedUsers.isNotEmpty) {
|
|
final chatState = StreamChat.of(context);
|
|
|
|
final res = await chatState.client.queryChannelsOnline(
|
|
options: {
|
|
'state': false,
|
|
'watch': false,
|
|
},
|
|
filter: {
|
|
'members': [
|
|
..._selectedUsers.map((e) => e.id),
|
|
chatState.user.id,
|
|
],
|
|
'distinct': true,
|
|
},
|
|
messageLimit: 0,
|
|
paginationParams: PaginationParams(
|
|
limit: 1,
|
|
),
|
|
);
|
|
|
|
final _channelExisted = res.length == 1;
|
|
if (_channelExisted) {
|
|
channel = res.first;
|
|
await channel.watch();
|
|
} else {
|
|
channel = chatState.client.channel(
|
|
'messaging',
|
|
extraData: {
|
|
'members': [
|
|
..._selectedUsers.map((e) => e.id),
|
|
chatState.user.id,
|
|
],
|
|
},
|
|
);
|
|
}
|
|
|
|
setState(() {
|
|
_showUserList = false;
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_searchFocusNode.dispose();
|
|
_messageInputFocusNode.dispose();
|
|
_controller?.clear();
|
|
_controller?.removeListener(_userNameListener);
|
|
_controller?.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Scaffold(
|
|
backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
|
|
appBar: AppBar(
|
|
brightness: Theme.of(context).brightness,
|
|
elevation: 0,
|
|
backgroundColor: StreamChatTheme.of(context).colorTheme.white,
|
|
leading: const StreamBackButton(),
|
|
title: Text(
|
|
'New Chat',
|
|
style: StreamChatTheme.of(context)
|
|
.textTheme
|
|
.headlineBold
|
|
.copyWith(color: StreamChatTheme.of(context).colorTheme.black),
|
|
),
|
|
centerTitle: true,
|
|
),
|
|
body: ConnectionStatusBuilder(
|
|
statusBuilder: (context, status) {
|
|
String statusString = '';
|
|
bool showStatus = true;
|
|
|
|
switch (status) {
|
|
case ConnectionStatus.connected:
|
|
statusString = 'Connected';
|
|
showStatus = false;
|
|
break;
|
|
case ConnectionStatus.connecting:
|
|
statusString = 'Reconnecting...';
|
|
break;
|
|
case ConnectionStatus.disconnected:
|
|
statusString = 'Disconnected';
|
|
break;
|
|
}
|
|
return InfoTile(
|
|
showMessage: showStatus,
|
|
tileAnchor: Alignment.topCenter,
|
|
childAnchor: Alignment.topCenter,
|
|
message: statusString,
|
|
child: StreamChannel(
|
|
showLoading: false,
|
|
channel: channel,
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
ChipsInputTextField<User>(
|
|
key: _chipInputTextFieldStateKey,
|
|
controller: _controller,
|
|
focusNode: _searchFocusNode,
|
|
chipBuilder: (context, user) {
|
|
return GestureDetector(
|
|
onTap: () {
|
|
_chipInputTextFieldState.removeItem(user);
|
|
_searchFocusNode.requestFocus();
|
|
},
|
|
child: Stack(
|
|
alignment: AlignmentDirectional.centerStart,
|
|
children: [
|
|
Container(
|
|
decoration: BoxDecoration(
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.greyGainsboro,
|
|
borderRadius: BorderRadius.circular(12),
|
|
),
|
|
padding: const EdgeInsets.only(left: 24),
|
|
child: Padding(
|
|
padding: const EdgeInsets.fromLTRB(8, 4, 12, 4),
|
|
child: Text(
|
|
user.name,
|
|
maxLines: 1,
|
|
style: TextStyle(
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.black,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
Container(
|
|
foregroundDecoration: BoxDecoration(
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.overlay,
|
|
shape: BoxShape.circle,
|
|
),
|
|
child: UserAvatar(
|
|
showOnlineStatus: false,
|
|
user: user,
|
|
constraints: BoxConstraints.tightFor(
|
|
height: 24,
|
|
width: 24,
|
|
),
|
|
),
|
|
),
|
|
StreamSvgIcon.close(),
|
|
],
|
|
),
|
|
);
|
|
},
|
|
onChipAdded: (user) {
|
|
setState(() => _selectedUsers.add(user));
|
|
},
|
|
onChipRemoved: (user) {
|
|
setState(() => _selectedUsers.remove(user));
|
|
},
|
|
),
|
|
if (!_isSearchActive && !_selectedUsers.isNotEmpty)
|
|
Container(
|
|
child: InkWell(
|
|
onTap: () {
|
|
Navigator.pushNamed(
|
|
context,
|
|
Routes.NEW_GROUP_CHAT,
|
|
);
|
|
},
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(vertical: 8),
|
|
child: Row(
|
|
children: [
|
|
StreamNeumorphicButton(
|
|
child: Center(
|
|
child: StreamSvgIcon.contacts(
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.accentBlue,
|
|
size: 24,
|
|
),
|
|
),
|
|
),
|
|
SizedBox(width: 8),
|
|
Text(
|
|
'Create a Group',
|
|
style: StreamChatTheme.of(context)
|
|
.textTheme
|
|
.bodyBold,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
if (_showUserList)
|
|
Container(
|
|
width: double.maxFinite,
|
|
decoration: BoxDecoration(
|
|
gradient:
|
|
StreamChatTheme.of(context).colorTheme.bgGradient,
|
|
),
|
|
child: Padding(
|
|
padding: const EdgeInsets.symmetric(
|
|
vertical: 8,
|
|
horizontal: 8,
|
|
),
|
|
child: Text(
|
|
_isSearchActive
|
|
? "Matches for \"$_userNameQuery\""
|
|
: 'On the platform',
|
|
style: StreamChatTheme.of(context)
|
|
.textTheme
|
|
.footnote
|
|
.copyWith(
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.black
|
|
.withOpacity(.5))),
|
|
),
|
|
),
|
|
Expanded(
|
|
child: _showUserList
|
|
? GestureDetector(
|
|
behavior: HitTestBehavior.opaque,
|
|
onPanDown: (_) => FocusScope.of(context).unfocus(),
|
|
child: UsersBloc(
|
|
child: UserListView(
|
|
selectedUsers: _selectedUsers,
|
|
groupAlphabetically:
|
|
_isSearchActive ? false : true,
|
|
onUserTap: (user, _) {
|
|
_controller.clear();
|
|
if (!_selectedUsers.contains(user)) {
|
|
_chipInputTextFieldState
|
|
..addItem(user)
|
|
..pauseItemAddition();
|
|
} else {
|
|
_chipInputTextFieldState.removeItem(user);
|
|
}
|
|
},
|
|
pagination: PaginationParams(
|
|
limit: 25,
|
|
),
|
|
filter: {
|
|
if (_userNameQuery.isNotEmpty)
|
|
'name': {
|
|
r'$autocomplete': _userNameQuery,
|
|
},
|
|
'id': {
|
|
r'$ne': StreamChat.of(context).user.id,
|
|
},
|
|
},
|
|
sort: [
|
|
SortOption(
|
|
'name',
|
|
direction: 1,
|
|
),
|
|
],
|
|
emptyBuilder: (_) {
|
|
return LayoutBuilder(
|
|
builder: (context, viewportConstraints) {
|
|
return SingleChildScrollView(
|
|
physics:
|
|
AlwaysScrollableScrollPhysics(),
|
|
child: ConstrainedBox(
|
|
constraints: BoxConstraints(
|
|
minHeight:
|
|
viewportConstraints.maxHeight,
|
|
),
|
|
child: Center(
|
|
child: Column(
|
|
children: [
|
|
Padding(
|
|
padding:
|
|
const EdgeInsets.all(24),
|
|
child: StreamSvgIcon.search(
|
|
size: 96,
|
|
color: Colors.grey,
|
|
),
|
|
),
|
|
Text(
|
|
'No user matches these keywords...',
|
|
style: StreamChatTheme.of(
|
|
context)
|
|
.textTheme
|
|
.footnote
|
|
.copyWith(
|
|
color: StreamChatTheme
|
|
.of(context)
|
|
.colorTheme
|
|
.black
|
|
.withOpacity(.5)),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
);
|
|
},
|
|
),
|
|
),
|
|
)
|
|
: FutureBuilder<bool>(
|
|
future: channel.initialized,
|
|
builder: (context, snapshot) {
|
|
if (snapshot.data == true) {
|
|
return MessageListView();
|
|
}
|
|
|
|
return Center(
|
|
child: Text(
|
|
'No chats here yet...',
|
|
style: TextStyle(
|
|
fontSize: 12,
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.black
|
|
.withOpacity(.5),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
MessageInput(
|
|
focusNode: _messageInputFocusNode,
|
|
preMessageSending: (message) async {
|
|
await channel.watch();
|
|
return message;
|
|
},
|
|
onMessageSent: (m) {
|
|
Navigator.pushNamedAndRemoveUntil(
|
|
context,
|
|
Routes.CHANNEL_PAGE,
|
|
ModalRoute.withName(Routes.HOME),
|
|
arguments: ChannelPageArgs(channel: channel),
|
|
);
|
|
},
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
);
|
|
}
|
|
}
|