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'; 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'; class DiscoverPage extends StatefulWidget { final String alias; const DiscoverPage({Key key, this.alias}) : super(key: key); @override _DiscoverPageState createState() => _DiscoverPageState(); } class _DiscoverPageState extends State { final ScrollController _scrollController = ScrollController(); bool _scrolledToTop = true; Future _publicRoomsResponse; Timer _coolDown; String _server; String _genericSearchTerm; void _search(BuildContext context, String query) async { _coolDown?.cancel(); _coolDown = Timer( Duration(milliseconds: 500), () => setState(() { _genericSearchTerm = query; _publicRoomsResponse = null; }), ); } void _setServer(BuildContext context) async { final newServer = await showTextInputDialog( title: L10n.of(context).changeTheHomeserver, context: context, textFields: [ DialogTextField( hintText: Matrix.of(context).client.homeserver.toString(), initialText: _server, keyboardType: TextInputType.url, ) ]); if (newServer == null) return; setState(() { _server = newServer.single; _publicRoomsResponse = null; }); } Future _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, ) == 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}'); } } @override void initState() { _genericSearchTerm = widget.alias; _scrollController.addListener(() async { if (_scrollController.position.pixels > 0 && _scrolledToTop) { setState(() => _scrolledToTop = false); } else if (_scrollController.position.pixels == 0 && !_scrolledToTop) { setState(() => _scrolledToTop = true); } }); super.initState(); } @override Widget build(BuildContext context) { final server = _genericSearchTerm?.isValidMatrixId ?? false ? _genericSearchTerm.domain : _server; _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) || room.canonicalAlias == widget.alias)) { // we have to tack on the original alias res.chunk.add(PublicRoom.fromJson({ 'aliases': [widget.alias], 'name': widget.alias, })); } return res; }); return Scaffold( appBar: AppBar( leading: BackButton(), titleSpacing: 0, elevation: _scrolledToTop ? 0 : null, title: DefaultAppBarSearchField( onChanged: (text) => _search(context, text), hintText: L10n.of(context).searchForAChat, suffix: IconButton( icon: Icon(Icons.edit_outlined), onPressed: () => _setServer(context), ), ), ), body: FutureBuilder( future: _publicRoomsResponse, builder: (BuildContext context, AsyncSnapshot snapshot) { if (snapshot.hasError) { return Center(child: Text(snapshot.error.toString())); } if (snapshot.connectionState != ConnectionState.done) { return Center(child: CircularProgressIndicator()); } final publicRoomsResponse = snapshot.data; if (publicRoomsResponse.chunk.isEmpty) { return Center( child: Text( 'No public groups found...', textAlign: TextAlign.center, ), ); } return GridView.builder( padding: EdgeInsets.all(12), gridDelegate: SliverGridDelegateWithFixedCrossAxisCount( crossAxisCount: 2, childAspectRatio: 1, crossAxisSpacing: 16, mainAxisSpacing: 16, ), controller: _scrollController, 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, ), ], ), ), ), ), ); }, ), ); } }