import 'dart:async'; import 'dart:io'; import 'package:famedlysdk/famedlysdk.dart'; import 'package:file_picker/file_picker.dart'; import 'package:fluffychat/components/adaptive_page_layout.dart'; import 'package:fluffychat/components/chat_settings_popup_menu.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/i18n/i18n.dart'; import 'package:fluffychat/utils/event_extension.dart'; import 'package:fluffychat/utils/room_extension.dart'; import 'package:flutter/foundation.dart'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; import 'package:flutter_svg/flutter_svg.dart'; import 'package:image_picker/image_picker.dart'; import 'package:toast/toast.dart'; import 'package:pedantic/pedantic.dart'; import 'chat_list.dart'; class ChatView extends StatelessWidget { final String id; const ChatView(this.id, {Key key}) : super(key: key); @override Widget build(BuildContext context) { // TODO: implement build return AdaptivePageLayout( primaryPage: FocusPage.SECOND, firstScaffold: ChatList( activeChat: id, ), secondScaffold: _Chat(id), ); } } class _Chat extends StatefulWidget { final String id; const _Chat(this.id, {Key key}) : super(key: key); @override _ChatState createState() => _ChatState(); } class _ChatState extends State<_Chat> { Room room; Timeline timeline; MatrixState matrix; String seenByText = ""; final ScrollController _scrollController = ScrollController(); FocusNode inputFocus = FocusNode(); Timer typingCoolDown; Timer typingTimeout; bool currentlyTyping = false; Set selectedEvents = {}; Event replyEvent; bool showScrollDownButton = false; bool get selectMode => selectedEvents.isNotEmpty; bool _loadingHistory = false; final int _loadHistoryCount = 100; String inputText = ""; void requestHistory() async { if (timeline.events.last.type != EventTypes.RoomCreate) { setState(() => this._loadingHistory = true); await timeline.requestHistory(historyCount: _loadHistoryCount); setState(() => this._loadingHistory = false); } } @override void initState() { _scrollController.addListener(() async { 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); } }); super.initState(); } void updateView() { if (!mounted) return; String seenByText = ""; if (timeline.events.isNotEmpty) { List 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 = I18n.of(context) .seenByUser(lastReceipts.first.user.calcDisplayname()); } else if (lastReceipts.length == 2) { seenByText = seenByText = I18n.of(context).seenByUserAndUser( lastReceipts.first.user.calcDisplayname(), lastReceipts[1].user.calcDisplayname()); } else if (lastReceipts.length > 2) { seenByText = I18n.of(context).seenByUserAndCountOthers( lastReceipts.first.user.calcDisplayname(), (lastReceipts.length - 1).toString()); } } if (timeline != null) { setState(() { this.seenByText = seenByText; }); } } Future getTimeline() async { if (timeline == null) { timeline = await room.getTimeline(onUpdate: updateView); if (timeline.events.isNotEmpty) { unawaited(room.sendReadReceipt(timeline.events.first.eventId)); } if (timeline.events.length < _loadHistoryCount) { this.requestHistory(); } } 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); sendController.text = ""; if (replyEvent != null) { setState(() => replyEvent = null); } setState(() => inputText = ""); } void sendFileAction(BuildContext context) async { if (kIsWeb) { return Toast.show(I18n.of(context).notSupportedInWeb, context); } File file = await FilePicker.getFile(); if (file == null) return; await matrix.tryRequestWithLoadingDialog( room.sendFileEvent( MatrixFile(bytes: await file.readAsBytes(), path: file.path), ), ); } void sendImageAction(BuildContext context) async { if (kIsWeb) { return Toast.show(I18n.of(context).notSupportedInWeb, context); } File file = await ImagePicker.pickImage( source: ImageSource.gallery, imageQuality: 50, maxWidth: 1600, maxHeight: 1600); if (file == null) return; await matrix.tryRequestWithLoadingDialog( room.sendImageEvent( MatrixFile(bytes: await file.readAsBytes(), path: file.path), ), ); } void openCameraAction(BuildContext context) async { if (kIsWeb) { return Toast.show(I18n.of(context).notSupportedInWeb, context); } File file = await ImagePicker.pickImage( source: ImageSource.camera, imageQuality: 50, maxWidth: 1600, maxHeight: 1600); if (file == null) return; await matrix.tryRequestWithLoadingDialog( room.sendImageEvent( MatrixFile(bytes: await file.readAsBytes(), path: file.path), ), ); } String _getSelectedEventString(BuildContext context) { String copyString = ""; for (Event event in selectedEvents) { if (copyString.isNotEmpty) copyString += "\n\n"; copyString += event.getLocalizedBody(context, withSenderNamePrefix: true); } return copyString; } void copyEventsAction(BuildContext context) { Clipboard.setData(ClipboardData(text: _getSelectedEventString(context))); setState(() => selectedEvents.clear()); } void redactEventsAction(BuildContext context) async { bool confirmed = await SimpleDialogs(context).askConfirmation( titleText: I18n.of(context).messageWillBeRemovedWarning, confirmText: I18n.of(context).remove, ); if (!confirmed) return; for (Event event in selectedEvents) { await Matrix.of(context).tryRequestWithLoadingDialog( event.status > 0 ? event.redact() : event.remove()); } setState(() => selectedEvents.clear()); } bool get canRedactSelectedEvents { for (Event 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() { selectedEvents.first.sendAgain(); setState(() => selectedEvents.clear()); } void replyAction() { setState(() { replyEvent = selectedEvents.first; selectedEvents.clear(); }); inputFocus.requestFocus(); } @override Widget build(BuildContext context) { matrix = Matrix.of(context); Client client = matrix.client; room ??= client.getRoomById(widget.id); if (room == null) { return Scaffold( appBar: AppBar( title: Text(I18n.of(context).oopsSomethingWentWrong), ), body: Center( child: Text(I18n.of(context).youAreNoLongerParticipatingInThisChat), ), ); } matrix.activeRoomId = widget.id; if (room.membership == Membership.invite) { matrix.tryRequestWithLoadingDialog(room.join()); } String typingText = ""; List typingUsers = room.typingUsers; typingUsers.removeWhere((User u) => u.id == client.userID); if (typingUsers.length == 1) { typingText = I18n.of(context).isTyping; if (typingUsers.first.id != room.directChatMatrixID) { typingText = I18n.of(context).userIsTyping(typingUsers.first.calcDisplayname()); } } else if (typingUsers.length == 2) { typingText = I18n.of(context).userAndUserAreTyping( typingUsers.first.calcDisplayname(), typingUsers[1].calcDisplayname()); } else if (typingUsers.length > 2) { typingText = I18n.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, title: selectedEvents.isEmpty ? Column( mainAxisSize: MainAxisSize.min, crossAxisAlignment: CrossAxisAlignment.start, children: [ Text(room.getLocalizedDisplayname(context)), AnimatedContainer( duration: Duration(milliseconds: 500), height: typingText.isEmpty ? 0 : 20, child: Row( children: [ typingText.isEmpty ? Container() : Icon(Icons.edit, color: Theme.of(context).primaryColor, size: 13), SizedBox(width: 4), Text( typingText, style: TextStyle( color: Theme.of(context).primaryColor, fontStyle: FontStyle.italic, fontSize: 16, ), ), ], ), ), ], ) : Text(I18n.of(context) .numberSelected(selectedEvents.length.toString())), actions: selectMode ? [ 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.body1.color, backgroundColor: Theme.of(context).scaffoldBackgroundColor, mini: true, ), ) : null, body: Stack( children: [ if (!kIsWeb) SvgPicture.asset( "assets/chat.svg", height: double.infinity, color: Theme.of(context).primaryColor.withOpacity(0.2), ), SafeArea( child: Column( children: [ if (_loadingHistory) LinearProgressIndicator(), Expanded( child: FutureBuilder( future: getTimeline(), builder: (BuildContext context, snapshot) { if (!snapshot.hasData) { return Center( child: CircularProgressIndicator(), ); } if (room.notificationCount != null && room.notificationCount > 0 && timeline != null && timeline.events.isNotEmpty) { room.sendReadReceipt(timeline.events.first.eventId); } if (timeline.events.isEmpty) return Container(); return ListView.builder( reverse: true, itemCount: timeline.events.length + 1, controller: _scrollController, itemBuilder: (BuildContext context, int i) { return i == 0 ? AnimatedContainer( height: seenByText.isEmpty ? 0 : 24, duration: seenByText.isEmpty ? Duration(milliseconds: 0) : Duration(milliseconds: 500), alignment: timeline.events.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, ), ) : Message(timeline.events[i - 1], onSelect: (Event event) => event.redacted ? null : selectedEvents.contains(event) ? setState(() => selectedEvents.remove(event)) : setState(() => selectedEvents.add(event)), longPressSelect: selectedEvents.isEmpty, selected: selectedEvents .contains(timeline.events[i - 1]), timeline: timeline, nextEvent: i >= 2 ? timeline.events[i - 2] : null); }); }, ), ), AnimatedContainer( duration: Duration(milliseconds: 300), height: replyEvent != null ? 56 : 0, child: Material( color: Theme.of(context).secondaryHeaderColor, child: Row( children: [ IconButton( icon: Icon(Icons.close), onPressed: () => setState(() => replyEvent = null), ), Expanded( child: ReplyContent(replyEvent), ), ], ), ), ), room.canSendDefaultMessages && room.membership == Membership.join ? Container( decoration: BoxDecoration( color: Theme.of(context).backgroundColor, boxShadow: [ BoxShadow( color: Colors.grey.withOpacity(0.2), spreadRadius: 1, blurRadius: 2, offset: Offset(0, -1), // changes position of shadow ), ], ), child: Row( crossAxisAlignment: CrossAxisAlignment.center, mainAxisAlignment: MainAxisAlignment.spaceBetween, children: selectMode ? [ Container( height: 56, child: FlatButton( onPressed: () => forwardEventsAction(context), child: Row( children: [ Icon(Icons.keyboard_arrow_left), Text(I18n.of(context).forward), ], ), ), ), selectedEvents.length == 1 ? selectedEvents.first.status > 0 ? Container( height: 56, child: FlatButton( onPressed: () => replyAction(), child: Row( children: [ Text( I18n.of(context).reply), Icon(Icons .keyboard_arrow_right), ], ), ), ) : Container( height: 56, child: FlatButton( onPressed: () => sendAgainAction(), child: Row( children: [ Text(I18n.of(context) .tryToSendAgain), SizedBox(width: 4), Icon(Icons.send, size: 16), ], ), ), ) : Container(), ] : [ if (!kIsWeb && inputText.isEmpty) 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); } }, itemBuilder: (BuildContext context) => >[ PopupMenuItem( value: "file", child: ListTile( leading: CircleAvatar( backgroundColor: Colors.green, foregroundColor: Colors.white, child: Icon(Icons.attachment), ), title: Text(I18n.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( I18n.of(context).sendImage), contentPadding: EdgeInsets.all(0), ), ), PopupMenuItem( value: "camera", child: ListTile( leading: CircleAvatar( backgroundColor: Colors.purple, foregroundColor: Colors.white, child: Icon(Icons.camera_alt), ), title: Text( I18n.of(context).openCamera), contentPadding: EdgeInsets.all(0), ), ), ], ), EncryptionButton(room), Expanded( child: Padding( padding: const EdgeInsets.symmetric( vertical: 4.0), child: TextField( 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: I18n.of(context).writeAMessage, border: InputBorder.none, ), onChanged: (String text) { this.typingCoolDown?.cancel(); this.typingCoolDown = Timer(Duration(seconds: 2), () { this.typingCoolDown = null; this.currentlyTyping = false; room.sendTypingInfo(false); }); this.typingTimeout ??= Timer(Duration(seconds: 30), () { this.typingTimeout = null; this.currentlyTyping = false; }); if (!this.currentlyTyping) { this.currentlyTyping = true; room.sendTypingInfo(true, timeout: Duration(seconds: 30) .inMilliseconds); } setState(() => inputText = text); }, ), ), ), IconButton( icon: Icon(Icons.send), onPressed: () => send(), ), ], ), ) : Container(), ], ), ), ], ), ); } }