fluffychat/lib/views/discover.dart

301 lines
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Dart
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import 'dart:async';
import 'package:adaptive_dialog/adaptive_dialog.dart';
import 'package:adaptive_page_layout/adaptive_page_layout.dart';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/components/avatar.dart';
import 'package:fluffychat/components/default_app_bar_search_field.dart';
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import 'package:fluffychat/components/default_bottom_navigation_bar.dart';
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import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:fluffychat/components/matrix.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import '../utils/localized_exception_extension.dart';
class Discover extends StatefulWidget {
final String alias;
const Discover({
Key key,
this.alias,
}) : super(key: key);
@override
_DiscoverState createState() => _DiscoverState();
}
class _DiscoverState extends State<Discover> {
Future<PublicRoomsResponse> _publicRoomsResponse;
String _lastServer;
Timer _coolDown;
String _genericSearchTerm;
void _search(BuildContext context, String query) async {
_coolDown?.cancel();
_coolDown = Timer(
Duration(milliseconds: 500),
() => setState(() {
_genericSearchTerm = query;
_publicRoomsResponse = null;
}),
);
}
Future<String> _joinRoomAndWait(
BuildContext context,
String roomId,
String alias,
) async {
if (Matrix.of(context).client.getRoomById(roomId) != null) {
return roomId;
}
final newRoomId = await Matrix.of(context)
.client
.joinRoomOrAlias(alias?.isNotEmpty ?? false ? alias : roomId);
await Matrix.of(context)
.client
.onRoomUpdate
.stream
.firstWhere((r) => r.id == newRoomId);
return newRoomId;
}
void _joinGroupAction(BuildContext context, PublicRoom room) async {
if (await showOkCancelAlertDialog(
context: context,
okLabel: L10n.of(context).joinRoom,
title: '${room.name} (${room.numJoinedMembers ?? 0})',
message: room.topic ?? L10n.of(context).noDescription,
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cancelLabel: L10n.of(context).cancel,
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) ==
OkCancelResult.cancel) {
return;
}
final success = await showFutureLoadingDialog(
context: context,
future: () => _joinRoomAndWait(
context,
room.roomId,
room.canonicalAlias ?? room.aliases.first,
),
);
if (success.error == null) {
await AdaptivePageLayout.of(context)
.pushNamedAndRemoveUntilIsFirst('/rooms/${success.result}');
}
}
String _server;
void _setServer(BuildContext context) async {
final newServer = await showTextInputDialog(
title: L10n.of(context).changeTheHomeserver,
context: context,
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okLabel: L10n.of(context).ok,
cancelLabel: L10n.of(context).cancel,
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textFields: [
DialogTextField(
prefixText: 'https://',
hintText: Matrix.of(context).client.homeserver.host,
initialText: _server,
keyboardType: TextInputType.url,
)
]);
if (newServer == null) return;
setState(() {
_server = newServer.single;
});
}
@override
void initState() {
_genericSearchTerm = widget.alias;
super.initState();
}
@override
Widget build(BuildContext context) {
final server = _genericSearchTerm?.isValidMatrixId ?? false
? _genericSearchTerm.domain
: _server;
if (_lastServer != server) {
_lastServer = server;
_publicRoomsResponse = null;
}
_publicRoomsResponse ??= Matrix.of(context)
.client
.searchPublicRooms(
server: server,
genericSearchTerm: _genericSearchTerm,
)
.catchError((error) {
if (widget.alias == null) {
throw error;
}
return PublicRoomsResponse.fromJson({
'chunk': [],
});
}).then((PublicRoomsResponse res) {
if (widget.alias != null &&
!res.chunk.any((room) =>
(room.aliases?.contains(widget.alias) ?? false) ||
room.canonicalAlias == widget.alias)) {
// we have to tack on the original alias
res.chunk.add(PublicRoom.fromJson(<String, dynamic>{
'aliases': [widget.alias],
'name': widget.alias,
}));
}
return res;
});
return Scaffold(
appBar: AppBar(
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elevation: 1,
automaticallyImplyLeading: false,
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title: Text(L10n.of(context).discoverGroups),
actions: [
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TextButton.icon(
label: Text(
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server ?? Matrix.of(context).client.userID.domain,
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style: TextStyle(color: Theme.of(context).accentColor),
),
icon: Icon(
Icons.edit_outlined,
color: Theme.of(context).accentColor,
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),
onPressed: () => _setServer(context),
),
],
),
body: ListView(
children: [
Padding(
padding: EdgeInsets.all(12),
child: DefaultAppBarSearchField(
hintText: L10n.of(context).search,
prefixIcon: Icon(Icons.search_outlined),
onChanged: (t) => _search(context, t),
padding: EdgeInsets.zero,
),
),
FutureBuilder<PublicRoomsResponse>(
future: _publicRoomsResponse,
builder: (BuildContext context,
AsyncSnapshot<PublicRoomsResponse> snapshot) {
if (snapshot.hasError) {
return Column(
mainAxisSize: MainAxisSize.min,
children: [
SizedBox(height: 32),
Icon(
Icons.error_outlined,
size: 80,
color: Colors.grey,
),
Center(
child: Text(
snapshot.error.toLocalizedString(context),
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.grey,
fontSize: 16,
),
),
),
],
);
}
if (snapshot.connectionState != ConnectionState.done) {
return Center(child: CircularProgressIndicator());
}
final publicRoomsResponse = snapshot.data;
if (publicRoomsResponse.chunk.isEmpty) {
return Column(
mainAxisSize: MainAxisSize.min,
children: [
SizedBox(height: 32),
Icon(
Icons.search_outlined,
size: 80,
color: Colors.grey,
),
Center(
child: Text(
L10n.of(context).noPublicRoomsFound,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.grey,
fontSize: 16,
),
),
),
],
);
}
return GridView.builder(
shrinkWrap: true,
padding: EdgeInsets.all(12),
physics: NeverScrollableScrollPhysics(),
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
childAspectRatio: 1,
crossAxisSpacing: 16,
mainAxisSpacing: 16,
),
itemCount: publicRoomsResponse.chunk.length,
itemBuilder: (BuildContext context, int i) => Material(
elevation: 2,
borderRadius: BorderRadius.circular(16),
child: InkWell(
onTap: () => _joinGroupAction(
context,
publicRoomsResponse.chunk[i],
),
borderRadius: BorderRadius.circular(16),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Avatar(
Uri.parse(
publicRoomsResponse.chunk[i].avatarUrl ??
''),
publicRoomsResponse.chunk[i].name),
Text(
publicRoomsResponse.chunk[i].name,
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
maxLines: 1,
textAlign: TextAlign.center,
),
Text(
L10n.of(context).countParticipants(
publicRoomsResponse
.chunk[i].numJoinedMembers ??
0),
style: TextStyle(fontSize: 10.5),
maxLines: 1,
textAlign: TextAlign.center,
),
Text(
publicRoomsResponse.chunk[i].topic ??
L10n.of(context).noDescription,
maxLines: 4,
textAlign: TextAlign.center,
),
],
),
),
),
),
);
}),
],
),
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bottomNavigationBar: DefaultBottomNavigationBar(currentIndex: 2),
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);
}
}