import 'dart:async'; import 'dart:io'; import 'dart:math'; import 'package:famedlysdk/famedlysdk.dart'; import 'package:fluffychat/config/app_emojis.dart'; import 'package:flutter/scheduler.dart'; import 'package:fluffychat/components/adaptive_page_layout.dart'; import 'package:fluffychat/components/avatar.dart'; import 'package:fluffychat/components/chat_settings_popup_menu.dart'; import 'package:fluffychat/components/connection_status_header.dart'; import 'package:fluffychat/components/dialogs/presence_dialog.dart'; import 'package:fluffychat/components/dialogs/recording_dialog.dart'; import 'package:fluffychat/components/dialogs/simple_dialogs.dart'; import 'package:fluffychat/components/encryption_button.dart'; import 'package:fluffychat/components/list_items/message.dart'; import 'package:fluffychat/components/matrix.dart'; import 'package:fluffychat/components/reply_content.dart'; import 'package:fluffychat/l10n/l10n.dart'; import 'package:fluffychat/utils/app_route.dart'; import 'package:fluffychat/utils/room_status_extension.dart'; import 'package:flutter/foundation.dart'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; import 'package:memoryfilepicker/memoryfilepicker.dart'; import 'package:pedantic/pedantic.dart'; import 'package:image_picker/image_picker.dart'; import 'package:file_picker_platform_interface/file_picker_platform_interface.dart'; import 'package:scroll_to_index/scroll_to_index.dart'; import 'chat_details.dart'; import 'chat_list.dart'; import '../components/input_bar.dart'; import '../components/dialogs/send_file_dialog.dart'; import '../utils/matrix_file_extension.dart'; class ChatView extends StatelessWidget { final String id; final String scrollToEventId; const ChatView(this.id, {Key key, this.scrollToEventId}) : super(key: key); @override Widget build(BuildContext context) { // TODO: implement build return AdaptivePageLayout( primaryPage: FocusPage.SECOND, firstScaffold: ChatList( activeChat: id, ), secondScaffold: _Chat(id, scrollToEventId: scrollToEventId), ); } } class _Chat extends StatefulWidget { final String id; final String scrollToEventId; const _Chat(this.id, {Key key, this.scrollToEventId}) : super(key: key); @override _ChatState createState() => _ChatState(); } class _ChatState extends State<_Chat> { Room room; Timeline timeline; MatrixState matrix; String seenByText = ''; final AutoScrollController _scrollController = AutoScrollController(); FocusNode inputFocus = FocusNode(); Timer typingCoolDown; Timer typingTimeout; bool currentlyTyping = false; List selectedEvents = []; Event replyEvent; Event editEvent; bool showScrollDownButton = false; bool get selectMode => selectedEvents.isNotEmpty; bool _loadingHistory = false; final int _loadHistoryCount = 100; String inputText = ''; bool get _canLoadMore => timeline.events.last.type != EventTypes.RoomCreate; void requestHistory() async { if (_canLoadMore) { setState(() => _loadingHistory = true); await SimpleDialogs(context).tryRequestWithErrorToast( timeline.requestHistory(historyCount: _loadHistoryCount), ); // we do NOT setState() here as then the event order will be wrong. // instead, we just set our variable to false, and rely on timeline update to set the // new state, thus triggering a re-render, for us _loadingHistory = false; } } void _updateScrollController() { if (_scrollController.position.pixels == _scrollController.position.maxScrollExtent && timeline.events.isNotEmpty && timeline.events[timeline.events.length - 1].type != EventTypes.RoomCreate) { requestHistory(); } if (_scrollController.position.pixels > 0 && showScrollDownButton == false) { setState(() => showScrollDownButton = true); } else if (_scrollController.position.pixels == 0 && showScrollDownButton == true) { setState(() => showScrollDownButton = false); } } @override void initState() { _scrollController.addListener(_updateScrollController); super.initState(); } void updateView() { if (!mounted) return; var seenByText = ''; if (timeline.events.isNotEmpty) { var lastReceipts = List.from(timeline.events.first.receipts); lastReceipts.removeWhere((r) => r.user.id == room.client.userID || r.user.id == timeline.events.first.senderId); if (lastReceipts.length == 1) { seenByText = L10n.of(context) .seenByUser(lastReceipts.first.user.calcDisplayname()); } else if (lastReceipts.length == 2) { seenByText = seenByText = L10n.of(context).seenByUserAndUser( lastReceipts.first.user.calcDisplayname(), lastReceipts[1].user.calcDisplayname()); } else if (lastReceipts.length > 2) { seenByText = L10n.of(context).seenByUserAndCountOthers( lastReceipts.first.user.calcDisplayname(), (lastReceipts.length - 1).toString()); } } if (timeline != null) { setState(() { this.seenByText = seenByText; }); } } Future getTimeline(BuildContext context) async { if (timeline == null) { timeline = await room.getTimeline(onUpdate: updateView); if (timeline.events.isNotEmpty) { unawaited(room.sendReadReceipt(timeline.events.first.eventId)); } // when the scroll controller is attached we want to scroll to an event id, if specified // and update the scroll controller...which will trigger a request history, if the // "load more" button is visible on the screen SchedulerBinding.instance.addPostFrameCallback((_) async { if (widget.scrollToEventId != null) { _scrollToEventId(widget.scrollToEventId, context: context); } _updateScrollController(); }); } updateView(); return true; } @override void dispose() { timeline?.cancelSubscriptions(); timeline = null; matrix.activeRoomId = ''; super.dispose(); } TextEditingController sendController = TextEditingController(); void send() { if (sendController.text.isEmpty) return; room.sendTextEvent(sendController.text, inReplyTo: replyEvent, editEventId: editEvent?.eventId); sendController.text = ''; setState(() { inputText = ''; replyEvent = null; editEvent = null; }); } void sendFileAction(BuildContext context) async { var file = await MemoryFilePicker.getFile(); if (file == null) return; await showDialog( context: context, builder: (context) => SendFileDialog( file: MatrixFile(bytes: file.bytes, name: file.path).detectFileType, room: room, )); } void sendImageAction(BuildContext context) async { var file = await MemoryFilePicker.getFile(type: FileType.image); if (file == null) return; final bytes = await file.bytes; await showDialog( context: context, builder: (context) => SendFileDialog( file: MatrixImageFile(bytes: bytes, name: file.path), room: room, )); } void openCameraAction(BuildContext context) async { var file = await MemoryFilePicker.getImage(source: ImageSource.camera); if (file == null) return; await showDialog( context: context, builder: (context) => SendFileDialog( file: MatrixImageFile(bytes: file.bytes, name: file.path), room: room, )); } void voiceMessageAction(BuildContext context) async { String result; await showDialog( context: context, builder: (context) => RecordingDialog( onFinished: (r) => result = r, )); if (result == null) return; final audioFile = File(result); // as we already explicitly say send in the recording dialog, // we do not need the send file dialog anymore. We can just send this straight away. await SimpleDialogs(context).tryRequestWithLoadingDialog( room.sendFileEvent( MatrixAudioFile( bytes: audioFile.readAsBytesSync(), name: audioFile.path), ), ); } String _getSelectedEventString(BuildContext context) { var copyString = ''; if (selectedEvents.length == 1) { return selectedEvents.first.getLocalizedBody(L10n.of(context)); } for (var event in selectedEvents) { if (copyString.isNotEmpty) copyString += '\n\n'; copyString += event.getLocalizedBody(L10n.of(context), withSenderNamePrefix: true); } return copyString; } void copyEventsAction(BuildContext context) { Clipboard.setData(ClipboardData(text: _getSelectedEventString(context))); setState(() => selectedEvents.clear()); } void redactEventsAction(BuildContext context) async { var confirmed = await SimpleDialogs(context).askConfirmation( titleText: L10n.of(context).messageWillBeRemovedWarning, confirmText: L10n.of(context).remove, ); if (!confirmed) return; for (var event in selectedEvents) { await SimpleDialogs(context).tryRequestWithLoadingDialog( event.status > 0 ? event.redact() : event.remove()); } setState(() => selectedEvents.clear()); } bool get canRedactSelectedEvents { for (var event in selectedEvents) { if (event.canRedact == false) return false; } return true; } void forwardEventsAction(BuildContext context) async { if (selectedEvents.length == 1) { Matrix.of(context).shareContent = selectedEvents.first.content; } else { Matrix.of(context).shareContent = { 'msgtype': 'm.text', 'body': _getSelectedEventString(context), }; } setState(() => selectedEvents.clear()); Navigator.of(context).popUntil((r) => r.isFirst); } void sendAgainAction(Timeline timeline) { final event = selectedEvents.first; if (event.status == -1) { event.sendAgain(); } final allEditEvents = event .aggregatedEvents(timeline, RelationshipTypes.Edit) .where((e) => e.status == -1); for (final e in allEditEvents) { e.sendAgain(); } setState(() => selectedEvents.clear()); } void replyAction() { setState(() { replyEvent = selectedEvents.first; selectedEvents.clear(); }); inputFocus.requestFocus(); } void _scrollToEventId(String eventId, {BuildContext context}) async { var eventIndex = getFilteredEvents().indexWhere((e) => e.eventId == eventId); if (eventIndex == -1) { // event id not found...maybe we can fetch it? // the try...finally is here to start and close the loading dialog reliably try { if (context != null) { SimpleDialogs(context).showLoadingDialog(context); } // okay, we first have to fetch if the event is in the room try { final event = await timeline.getEventById(eventId); if (event == null) { // event is null...meaning something is off return; } } catch (err) { if (err is MatrixException && err.errcode == 'M_NOT_FOUND') { // event wasn't found, as the server gave a 404 or something return; } rethrow; } // okay, we know that the event *is* in the room while (eventIndex == -1) { if (!_canLoadMore) { // we can't load any more events but still haven't found ours yet...better stop here return; } try { await timeline.requestHistory(historyCount: _loadHistoryCount); } catch (err) { if (err is TimeoutException) { // loading the history timed out...so let's do nothing return; } rethrow; } eventIndex = getFilteredEvents().indexWhere((e) => e.eventId == eventId); } } finally { if (context != null) { Navigator.of(context)?.pop(); } } } await _scrollController.scrollToIndex(eventIndex, preferPosition: AutoScrollPosition.middle); _updateScrollController(); } List getFilteredEvents() => timeline.events .where((e) => ![RelationshipTypes.Edit, RelationshipTypes.Reaction] .contains(e.relationshipType) && e.type != 'm.reaction') .toList(); @override Widget build(BuildContext context) { matrix = Matrix.of(context); var client = matrix.client; room ??= client.getRoomById(widget.id); if (room == null) { return Scaffold( appBar: AppBar( title: Text(L10n.of(context).oopsSomethingWentWrong), ), body: Center( child: Text(L10n.of(context).youAreNoLongerParticipatingInThisChat), ), ); } matrix.activeRoomId = widget.id; if (room.membership == Membership.invite) { SimpleDialogs(context).tryRequestWithLoadingDialog(room.join()); } var typingText = ''; var typingUsers = room.typingUsers; typingUsers.removeWhere((User u) => u.id == client.userID); if (typingUsers.length == 1) { typingText = L10n.of(context).isTyping; if (typingUsers.first.id != room.directChatMatrixID) { typingText = L10n.of(context).userIsTyping(typingUsers.first.calcDisplayname()); } } else if (typingUsers.length == 2) { typingText = L10n.of(context).userAndUserAreTyping( typingUsers.first.calcDisplayname(), typingUsers[1].calcDisplayname()); } else if (typingUsers.length > 2) { typingText = L10n.of(context).userAndOthersAreTyping( typingUsers.first.calcDisplayname(), (typingUsers.length - 1).toString()); } return Scaffold( appBar: AppBar( leading: selectMode ? IconButton( icon: Icon(Icons.close), onPressed: () => setState(() => selectedEvents.clear()), ) : null, titleSpacing: 0, title: selectedEvents.isEmpty ? StreamBuilder( stream: Matrix.of(context) .client .onPresence .stream .where((p) => p.senderId == room.directChatMatrixID), builder: (context, snapshot) { return ListTile( leading: Avatar(room.avatar, room.displayname), contentPadding: EdgeInsets.zero, onTap: () => room.isDirectChat && room.directChatPresence == null ? null : room.isDirectChat ? showDialog( context: context, builder: (c) => PresenceDialog( room.directChatPresence, avatarUrl: room.avatar, displayname: room.displayname, ), ) : Navigator.of(context).push( AppRoute.defaultRoute( context, ChatDetails(room), ), ), title: Text(room.getLocalizedDisplayname(L10n.of(context)), maxLines: 1), subtitle: typingText.isEmpty ? Text( room.getLocalizedStatus(context), maxLines: 1, ) : Row( children: [ Icon(Icons.edit, color: Theme.of(context).primaryColor, size: 13), SizedBox(width: 4), Text( typingText, maxLines: 1, style: TextStyle( color: Theme.of(context).primaryColor, fontStyle: FontStyle.italic, fontSize: 16, ), ), ], ), ); }) : Text(L10n.of(context) .numberSelected(selectedEvents.length.toString())), actions: selectMode ? [ if (selectedEvents.length == 1 && selectedEvents.first.status > 0 && selectedEvents.first.senderId == client.userID) IconButton( icon: Icon(Icons.edit), onPressed: () { setState(() { editEvent = selectedEvents.first; sendController.text = editEvent .getDisplayEvent(timeline) .getLocalizedBody(L10n.of(context), withSenderNamePrefix: false, hideReply: true); selectedEvents.clear(); }); inputFocus.requestFocus(); }, ), IconButton( icon: Icon(Icons.content_copy), onPressed: () => copyEventsAction(context), ), if (canRedactSelectedEvents) IconButton( icon: Icon(Icons.delete), onPressed: () => redactEventsAction(context), ), ] : [ChatSettingsPopupMenu(room, !room.isDirectChat)], ), floatingActionButton: showScrollDownButton ? Padding( padding: const EdgeInsets.only(bottom: 56.0), child: FloatingActionButton( child: Icon(Icons.arrow_downward, color: Theme.of(context).primaryColor), onPressed: () => _scrollController.jumpTo(0), foregroundColor: Theme.of(context).textTheme.bodyText2.color, backgroundColor: Theme.of(context).scaffoldBackgroundColor, mini: true, ), ) : null, body: Stack( children: [ if (Matrix.of(context).wallpaper != null) Opacity( opacity: 0.66, child: Image.file( Matrix.of(context).wallpaper, height: double.infinity, width: double.infinity, fit: BoxFit.cover, ), ), Column( children: [ ConnectionStatusHeader(), Expanded( child: FutureBuilder( future: getTimeline(context), builder: (BuildContext context, snapshot) { if (!snapshot.hasData) { return Center( child: CircularProgressIndicator(), ); } if (room.notificationCount != null && room.notificationCount > 0 && timeline != null && timeline.events.isNotEmpty && Matrix.of(context).webHasFocus) { room.sendReadReceipt(timeline.events.first.eventId); } final filteredEvents = getFilteredEvents(); return ListView.builder( padding: EdgeInsets.symmetric( horizontal: max( 0, (MediaQuery.of(context).size.width - AdaptivePageLayout.defaultMinWidth * 3.5) / 2), ), reverse: true, itemCount: filteredEvents.length + 2, controller: _scrollController, itemBuilder: (BuildContext context, int i) { return i == filteredEvents.length + 1 ? _loadingHistory ? Container( height: 50, alignment: Alignment.center, padding: EdgeInsets.all(8), child: CircularProgressIndicator(), ) : _canLoadMore ? FlatButton( child: Text( L10n.of(context).loadMore, style: TextStyle( color: Theme.of(context) .primaryColor, fontWeight: FontWeight.bold, decoration: TextDecoration.underline, ), ), onPressed: requestHistory, ) : Container() : i == 0 ? AnimatedContainer( height: seenByText.isEmpty ? 0 : 24, duration: seenByText.isEmpty ? Duration(milliseconds: 0) : Duration(milliseconds: 500), alignment: filteredEvents.first.senderId == client.userID ? Alignment.topRight : Alignment.topLeft, child: Text( seenByText, maxLines: 1, overflow: TextOverflow.ellipsis, style: TextStyle( color: Theme.of(context).primaryColor, ), ), padding: EdgeInsets.only( left: 8, right: 8, bottom: 8, ), ) : AutoScrollTag( key: ValueKey(i - 1), index: i - 1, controller: _scrollController, child: Message(filteredEvents[i - 1], onAvatarTab: (Event event) { sendController.text += ' ${event.senderId}'; }, onSelect: (Event event) { if (!event.redacted) { if (selectedEvents .contains(event)) { setState( () => selectedEvents .remove(event), ); } else { setState( () => selectedEvents.add(event), ); } selectedEvents.sort( (a, b) => a.originServerTs .compareTo( b.originServerTs), ); } }, scrollToEventId: (String eventId) => _scrollToEventId(eventId, context: context), longPressSelect: selectedEvents.isEmpty, selected: selectedEvents .contains(filteredEvents[i - 1]), timeline: timeline, nextEvent: i >= 2 ? filteredEvents[i - 2] : null), ); }); }, ), ), AnimatedContainer( duration: Duration(milliseconds: 300), height: (editEvent == null && replyEvent == null && selectedEvents.length == 1) ? 56 : 0, child: Material( color: Theme.of(context).secondaryHeaderColor, child: Builder(builder: (context) { if (!(editEvent == null && replyEvent == null && selectedEvents.length == 1)) { return Container(); } var emojis = List.from(AppEmojis.emojis); final allReactionEvents = selectedEvents.first .aggregatedEvents(timeline, RelationshipTypes.Reaction) ?.where((event) => event.senderId == event.room.client.userID && event.type == 'm.reaction'); allReactionEvents.forEach((event) { try { emojis.remove(event.content['m.relates_to']['key']); } catch (_) {} }); return ListView.builder( scrollDirection: Axis.horizontal, itemCount: emojis.length, itemBuilder: (c, i) => InkWell( borderRadius: BorderRadius.circular(8), onTap: () { SimpleDialogs(context).tryRequestWithLoadingDialog( room.sendReaction( selectedEvents.first.eventId, emojis[i], ), ); setState(() => selectedEvents.clear()); }, child: Container( width: 56, height: 56, alignment: Alignment.center, child: Text( emojis[i], style: TextStyle(fontSize: 30), ), ), ), ); }), ), ), AnimatedContainer( duration: Duration(milliseconds: 300), height: editEvent != null || replyEvent != null ? 56 : 0, child: Material( color: Theme.of(context).secondaryHeaderColor, child: Row( children: [ IconButton( icon: Icon(Icons.close), onPressed: () => setState(() { replyEvent = null; editEvent = null; }), ), Expanded( child: replyEvent != null ? ReplyContent(replyEvent, timeline: timeline) : _EditContent( editEvent?.getDisplayEvent(timeline)), ), ], ), ), ), Divider( height: 1, color: Theme.of(context).secondaryHeaderColor, thickness: 1, ), room.canSendDefaultMessages && room.membership == Membership.join ? Container( decoration: BoxDecoration( color: Theme.of(context).backgroundColor.withOpacity(0.8), ), child: Row( crossAxisAlignment: CrossAxisAlignment.end, mainAxisAlignment: MainAxisAlignment.spaceBetween, children: selectMode ? [ Container( height: 56, child: FlatButton( onPressed: () => forwardEventsAction(context), child: Row( children: [ Icon(Icons.keyboard_arrow_left), Text(L10n.of(context).forward), ], ), ), ), selectedEvents.length == 1 ? selectedEvents.first .getDisplayEvent(timeline) .status > 0 ? Container( height: 56, child: FlatButton( onPressed: () => replyAction(), child: Row( children: [ Text(L10n.of(context).reply), Icon(Icons .keyboard_arrow_right), ], ), ), ) : Container( height: 56, child: FlatButton( onPressed: () => sendAgainAction(timeline), child: Row( children: [ Text(L10n.of(context) .tryToSendAgain), SizedBox(width: 4), Icon(Icons.send, size: 16), ], ), ), ) : Container(), ] : [ if (inputText.isEmpty) Container( height: 56, alignment: Alignment.center, child: PopupMenuButton( icon: Icon(Icons.add), onSelected: (String choice) async { if (choice == 'file') { sendFileAction(context); } else if (choice == 'image') { sendImageAction(context); } if (choice == 'camera') { openCameraAction(context); } if (choice == 'voice') { voiceMessageAction(context); } }, itemBuilder: (BuildContext context) => >[ PopupMenuItem( value: 'file', child: ListTile( leading: CircleAvatar( backgroundColor: Colors.green, foregroundColor: Colors.white, child: Icon(Icons.attachment), ), title: Text(L10n.of(context).sendFile), contentPadding: EdgeInsets.all(0), ), ), PopupMenuItem( value: 'image', child: ListTile( leading: CircleAvatar( backgroundColor: Colors.blue, foregroundColor: Colors.white, child: Icon(Icons.image), ), title: Text( L10n.of(context).sendImage), contentPadding: EdgeInsets.all(0), ), ), if (!kIsWeb) PopupMenuItem( value: 'camera', child: ListTile( leading: CircleAvatar( backgroundColor: Colors.purple, foregroundColor: Colors.white, child: Icon(Icons.camera_alt), ), title: Text( L10n.of(context).openCamera), contentPadding: EdgeInsets.all(0), ), ), if (!kIsWeb) PopupMenuItem( value: 'voice', child: ListTile( leading: CircleAvatar( backgroundColor: Colors.red, foregroundColor: Colors.white, child: Icon(Icons.mic), ), title: Text(L10n.of(context) .voiceMessage), contentPadding: EdgeInsets.all(0), ), ), ], ), ), Container( height: 56, alignment: Alignment.center, child: EncryptionButton(room), ), Expanded( child: Padding( padding: const EdgeInsets.symmetric( vertical: 4.0), child: InputBar( room: room, minLines: 1, maxLines: kIsWeb ? 1 : 8, keyboardType: kIsWeb ? TextInputType.text : TextInputType.multiline, onSubmitted: (String text) { send(); FocusScope.of(context) .requestFocus(inputFocus); }, focusNode: inputFocus, controller: sendController, decoration: InputDecoration( hintText: L10n.of(context).writeAMessage, hintMaxLines: 1, border: InputBorder.none, ), onChanged: (String text) { typingCoolDown?.cancel(); typingCoolDown = Timer(Duration(seconds: 2), () { typingCoolDown = null; currentlyTyping = false; room.sendTypingInfo(false); }); typingTimeout ??= Timer(Duration(seconds: 30), () { typingTimeout = null; currentlyTyping = false; }); if (!currentlyTyping) { currentlyTyping = true; room.sendTypingInfo(true, timeout: Duration(seconds: 30) .inMilliseconds); } setState(() => inputText = text); }, ), ), ), if (!kIsWeb && inputText.isEmpty) Container( height: 56, alignment: Alignment.center, child: IconButton( icon: Icon(Icons.mic), onPressed: () => voiceMessageAction(context), ), ), if (kIsWeb || inputText.isNotEmpty) Container( height: 56, alignment: Alignment.center, child: IconButton( icon: Icon(Icons.send), onPressed: () => send(), ), ), ], ), ) : Container(), ], ), ], ), ); } } class _EditContent extends StatelessWidget { final Event event; _EditContent(this.event); @override Widget build(BuildContext context) { if (event == null) { return Container(); } return Row( children: [ Icon( Icons.edit, color: Theme.of(context).primaryColor, ), Container(width: 15.0), Text( event?.getLocalizedBody( L10n.of(context), withSenderNamePrefix: false, hideReply: true, ) ?? '', overflow: TextOverflow.ellipsis, maxLines: 1, style: TextStyle( color: Theme.of(context).textTheme.bodyText2.color, ), ), ], ); } }