fluffychat/lib/views/chat.dart

977 lines
40 KiB
Dart
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import 'dart:async';
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import 'dart:io';
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import 'dart:math';
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import 'package:famedlysdk/famedlysdk.dart';
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import 'package:flutter/scheduler.dart';
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import 'package:fluffychat/components/adaptive_page_layout.dart';
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import 'package:fluffychat/components/avatar.dart';
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import 'package:fluffychat/components/chat_settings_popup_menu.dart';
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import 'package:fluffychat/components/connection_status_header.dart';
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import 'package:fluffychat/components/dialogs/presence_dialog.dart';
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import 'package:fluffychat/components/dialogs/recording_dialog.dart';
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import 'package:fluffychat/components/dialogs/simple_dialogs.dart';
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import 'package:fluffychat/components/encryption_button.dart';
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import 'package:fluffychat/components/list_items/message.dart';
import 'package:fluffychat/components/matrix.dart';
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import 'package:fluffychat/components/reply_content.dart';
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import 'package:fluffychat/l10n/l10n.dart';
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import 'package:fluffychat/utils/app_route.dart';
import 'package:fluffychat/utils/room_status_extension.dart';
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import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:memoryfilepicker/memoryfilepicker.dart';
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import 'package:pedantic/pedantic.dart';
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import 'package:image_picker/image_picker.dart';
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import 'package:file_picker_platform_interface/file_picker_platform_interface.dart';
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import 'package:scroll_to_index/scroll_to_index.dart';
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import 'chat_details.dart';
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import 'chat_list.dart';
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import '../components/input_bar.dart';
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import '../components/dialogs/send_file_dialog.dart';
import '../utils/matrix_file_extension.dart';
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class ChatView extends StatelessWidget {
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final String id;
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final String scrollToEventId;
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const ChatView(this.id, {Key key, this.scrollToEventId}) : super(key: key);
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@override
Widget build(BuildContext context) {
// TODO: implement build
return AdaptivePageLayout(
primaryPage: FocusPage.SECOND,
firstScaffold: ChatList(
activeChat: id,
),
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secondScaffold: _Chat(id, scrollToEventId: scrollToEventId),
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);
}
}
class _Chat extends StatefulWidget {
final String id;
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final String scrollToEventId;
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const _Chat(this.id, {Key key, this.scrollToEventId}) : super(key: key);
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@override
_ChatState createState() => _ChatState();
}
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class _ChatState extends State<_Chat> {
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Room room;
Timeline timeline;
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MatrixState matrix;
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String seenByText = '';
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final AutoScrollController _scrollController = AutoScrollController();
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FocusNode inputFocus = FocusNode();
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Timer typingCoolDown;
Timer typingTimeout;
bool currentlyTyping = false;
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List<Event> selectedEvents = [];
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Event replyEvent;
Event editEvent;
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bool showScrollDownButton = false;
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bool get selectMode => selectedEvents.isNotEmpty;
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bool _loadingHistory = false;
final int _loadHistoryCount = 100;
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String inputText = '';
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bool get _canLoadMore => timeline.events.last.type != EventTypes.RoomCreate;
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void requestHistory() async {
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if (_canLoadMore) {
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setState(() => _loadingHistory = true);
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await SimpleDialogs(context).tryRequestWithErrorToast(
timeline.requestHistory(historyCount: _loadHistoryCount),
);
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// 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);
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}
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}
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@override
void initState() {
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_scrollController.addListener(_updateScrollController);
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super.initState();
}
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void updateView() {
if (!mounted) return;
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var seenByText = '';
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if (timeline.events.isNotEmpty) {
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var lastReceipts = List.from(timeline.events.first.receipts);
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lastReceipts.removeWhere((r) =>
r.user.id == room.client.userID ||
r.user.id == timeline.events.first.senderId);
if (lastReceipts.length == 1) {
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seenByText = L10n.of(context)
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.seenByUser(lastReceipts.first.user.calcDisplayname());
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} else if (lastReceipts.length == 2) {
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seenByText = seenByText = L10n.of(context).seenByUserAndUser(
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lastReceipts.first.user.calcDisplayname(),
lastReceipts[1].user.calcDisplayname());
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} else if (lastReceipts.length > 2) {
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seenByText = L10n.of(context).seenByUserAndCountOthers(
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lastReceipts.first.user.calcDisplayname(),
(lastReceipts.length - 1).toString());
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}
}
if (timeline != null) {
setState(() {
this.seenByText = seenByText;
});
}
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}
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Future<bool> getTimeline(BuildContext context) async {
if (timeline == null) {
timeline = await room.getTimeline(onUpdate: updateView);
if (timeline.events.isNotEmpty) {
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unawaited(room.sendReadReceipt(timeline.events.first.eventId));
}
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// 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();
});
}
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updateView();
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return true;
}
@override
void dispose() {
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timeline?.cancelSubscriptions();
timeline = null;
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matrix.activeRoomId = '';
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super.dispose();
}
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TextEditingController sendController = TextEditingController();
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void send() {
if (sendController.text.isEmpty) return;
room.sendTextEvent(sendController.text,
inReplyTo: replyEvent, editEventId: editEvent?.eventId);
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sendController.text = '';
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setState(() {
inputText = '';
replyEvent = null;
editEvent = null;
});
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}
void sendFileAction(BuildContext context) async {
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var file = await MemoryFilePicker.getFile();
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if (file == null) return;
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await showDialog(
context: context,
builder: (context) => SendFileDialog(
file:
MatrixFile(bytes: file.bytes, name: file.path).detectFileType,
room: room,
));
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}
void sendImageAction(BuildContext context) async {
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var file = await MemoryFilePicker.getFile(type: FileType.image);
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if (file == null) return;
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final bytes = await file.bytes;
await showDialog(
context: context,
builder: (context) => SendFileDialog(
file: MatrixImageFile(bytes: bytes, name: file.path),
room: room,
));
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}
void openCameraAction(BuildContext context) async {
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var file = await MemoryFilePicker.getImage(source: ImageSource.camera);
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if (file == null) return;
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await showDialog(
context: context,
builder: (context) => SendFileDialog(
file: MatrixImageFile(bytes: file.bytes, name: file.path),
room: room,
));
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}
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void voiceMessageAction(BuildContext context) async {
String result;
await showDialog(
context: context,
builder: (context) => RecordingDialog(
onFinished: (r) => result = r,
));
if (result == null) return;
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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),
),
);
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}
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String _getSelectedEventString(BuildContext context) {
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var copyString = '';
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if (selectedEvents.length == 1) {
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return selectedEvents.first.getLocalizedBody(L10n.of(context));
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}
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for (var event in selectedEvents) {
if (copyString.isNotEmpty) copyString += '\n\n';
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copyString +=
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event.getLocalizedBody(L10n.of(context), withSenderNamePrefix: true);
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}
return copyString;
}
void copyEventsAction(BuildContext context) {
Clipboard.setData(ClipboardData(text: _getSelectedEventString(context)));
setState(() => selectedEvents.clear());
}
void redactEventsAction(BuildContext context) async {
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var confirmed = await SimpleDialogs(context).askConfirmation(
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titleText: L10n.of(context).messageWillBeRemovedWarning,
confirmText: L10n.of(context).remove,
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);
if (!confirmed) return;
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for (var event in selectedEvents) {
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await SimpleDialogs(context).tryRequestWithLoadingDialog(
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event.status > 0 ? event.redact() : event.remove());
}
setState(() => selectedEvents.clear());
}
bool get canRedactSelectedEvents {
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for (var event in selectedEvents) {
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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 = {
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'msgtype': 'm.text',
'body': _getSelectedEventString(context),
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};
}
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();
}
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setState(() => selectedEvents.clear());
}
void replyAction() {
setState(() {
replyEvent = selectedEvents.first;
selectedEvents.clear();
});
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inputFocus.requestFocus();
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}
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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<Event> getFilteredEvents() => timeline.events
.where((e) =>
![RelationshipTypes.Edit, RelationshipTypes.Reaction]
.contains(e.relationshipType) &&
e.type != 'm.reaction')
.toList();
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@override
Widget build(BuildContext context) {
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matrix = Matrix.of(context);
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var client = matrix.client;
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room ??= client.getRoomById(widget.id);
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if (room == null) {
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return Scaffold(
appBar: AppBar(
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title: Text(L10n.of(context).oopsSomethingWentWrong),
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),
body: Center(
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child: Text(L10n.of(context).youAreNoLongerParticipatingInThisChat),
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),
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);
}
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matrix.activeRoomId = widget.id;
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if (room.membership == Membership.invite) {
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SimpleDialogs(context).tryRequestWithLoadingDialog(room.join());
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}
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var typingText = '';
var typingUsers = room.typingUsers;
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typingUsers.removeWhere((User u) => u.id == client.userID);
if (typingUsers.length == 1) {
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typingText = L10n.of(context).isTyping;
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if (typingUsers.first.id != room.directChatMatrixID) {
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typingText =
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L10n.of(context).userIsTyping(typingUsers.first.calcDisplayname());
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}
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} else if (typingUsers.length == 2) {
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typingText = L10n.of(context).userAndUserAreTyping(
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typingUsers.first.calcDisplayname(),
typingUsers[1].calcDisplayname());
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} else if (typingUsers.length > 2) {
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typingText = L10n.of(context).userAndOthersAreTyping(
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typingUsers.first.calcDisplayname(),
(typingUsers.length - 1).toString());
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}
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return Scaffold(
appBar: AppBar(
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leading: selectMode
? IconButton(
icon: Icon(Icons.close),
onPressed: () => setState(() => selectedEvents.clear()),
)
: null,
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titleSpacing: 0,
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title: selectedEvents.isEmpty
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? StreamBuilder<Object>(
stream: Matrix.of(context)
.client
.onPresence
.stream
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.where((p) => p.senderId == room.directChatMatrixID),
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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),
),
),
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title: Text(room.getLocalizedDisplayname(L10n.of(context)),
maxLines: 1),
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subtitle: typingText.isEmpty
? Text(
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room.getLocalizedStatus(context),
maxLines: 1,
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)
: Row(
children: <Widget>[
Icon(Icons.edit,
color: Theme.of(context).primaryColor,
size: 13),
SizedBox(width: 4),
Text(
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typingText,
maxLines: 1,
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style: TextStyle(
color: Theme.of(context).primaryColor,
fontStyle: FontStyle.italic,
fontSize: 16,
),
),
],
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),
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);
})
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: Text(L10n.of(context)
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.numberSelected(selectedEvents.length.toString())),
actions: selectMode
? <Widget>[
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();
},
),
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IconButton(
icon: Icon(Icons.content_copy),
onPressed: () => copyEventsAction(context),
),
if (canRedactSelectedEvents)
IconButton(
icon: Icon(Icons.delete),
onPressed: () => redactEventsAction(context),
),
]
: <Widget>[ChatSettingsPopupMenu(room, !room.isDirectChat)],
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),
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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),
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foregroundColor: Theme.of(context).textTheme.bodyText2.color,
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backgroundColor: Theme.of(context).scaffoldBackgroundColor,
mini: true,
),
)
: null,
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body: Stack(
children: <Widget>[
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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,
),
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),
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Column(
children: <Widget>[
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ConnectionStatusHeader(),
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Expanded(
child: FutureBuilder<bool>(
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future: getTimeline(context),
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builder: (BuildContext context, snapshot) {
if (!snapshot.hasData) {
return Center(
child: CircularProgressIndicator(),
);
}
if (room.notificationCount != null &&
room.notificationCount > 0 &&
timeline != null &&
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timeline.events.isNotEmpty &&
Matrix.of(context).webHasFocus) {
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room.sendReadReceipt(timeline.events.first.eventId);
}
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final filteredEvents = getFilteredEvents();
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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,
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controller: _scrollController,
itemBuilder: (BuildContext context, int i) {
return i == filteredEvents.length + 1
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? _loadingHistory
? Container(
height: 50,
alignment: Alignment.center,
padding: EdgeInsets.all(8),
child: CircularProgressIndicator(),
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)
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: _canLoadMore
? FlatButton(
child: Text(
L10n.of(context).loadMore,
style: TextStyle(
color: Theme.of(context)
.primaryColor,
fontWeight: FontWeight.bold,
decoration:
TextDecoration.underline,
),
),
onPressed: requestHistory,
)
: Container()
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: i == 0
? AnimatedContainer(
height: seenByText.isEmpty ? 0 : 24,
duration: seenByText.isEmpty
? Duration(milliseconds: 0)
: Duration(milliseconds: 500),
alignment:
filteredEvents.first.senderId ==
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client.userID
? Alignment.topRight
: Alignment.topLeft,
child: Text(
seenByText,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: Theme.of(context).primaryColor,
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),
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),
padding: EdgeInsets.only(
left: 8,
right: 8,
bottom: 8,
),
)
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: 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),
);
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});
},
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),
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),
AnimatedContainer(
duration: Duration(milliseconds: 300),
height: editEvent != null || replyEvent != null ? 56 : 0,
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child: Material(
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color: Theme.of(context).secondaryHeaderColor,
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child: Row(
children: <Widget>[
IconButton(
icon: Icon(Icons.close),
onPressed: () => setState(() {
replyEvent = null;
editEvent = null;
}),
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),
Expanded(
child: replyEvent != null
? ReplyContent(replyEvent, timeline: timeline)
: _EditContent(
editEvent?.getDisplayEvent(timeline)),
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),
],
),
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),
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),
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(
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crossAxisAlignment: CrossAxisAlignment.end,
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: selectMode
? <Widget>[
Container(
height: 56,
child: FlatButton(
onPressed: () =>
forwardEventsAction(context),
child: Row(
children: <Widget>[
Icon(Icons.keyboard_arrow_left),
Text(L10n.of(context).forward),
],
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),
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),
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),
selectedEvents.length == 1
? selectedEvents.first
.getDisplayEvent(timeline)
.status >
0
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? Container(
height: 56,
child: FlatButton(
onPressed: () => replyAction(),
child: Row(
children: <Widget>[
Text(L10n.of(context).reply),
Icon(Icons
.keyboard_arrow_right),
],
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),
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),
)
: Container(
height: 56,
child: FlatButton(
onPressed: () =>
sendAgainAction(timeline),
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child: Row(
children: <Widget>[
Text(L10n.of(context)
.tryToSendAgain),
SizedBox(width: 4),
Icon(Icons.send, size: 16),
],
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),
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),
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)
: Container(),
]
: <Widget>[
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if (inputText.isEmpty)
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Container(
height: 56,
alignment: Alignment.center,
child: PopupMenuButton<String>(
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) =>
<PopupMenuEntry<String>>[
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PopupMenuItem<String>(
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value: 'file',
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child: ListTile(
leading: CircleAvatar(
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backgroundColor: Colors.green,
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foregroundColor: Colors.white,
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child: Icon(Icons.attachment),
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),
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title:
Text(L10n.of(context).sendFile),
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contentPadding: EdgeInsets.all(0),
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),
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),
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PopupMenuItem<String>(
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value: 'image',
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child: ListTile(
leading: CircleAvatar(
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backgroundColor: Colors.blue,
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foregroundColor: Colors.white,
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child: Icon(Icons.image),
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),
title: Text(
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L10n.of(context).sendImage),
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contentPadding: EdgeInsets.all(0),
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),
),
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if (!kIsWeb)
PopupMenuItem<String>(
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<String>(
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),
),
),
],
),
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),
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Container(
height: 56,
alignment: Alignment.center,
child: EncryptionButton(room),
),
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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,
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hintMaxLines: 1,
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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);
},
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),
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),
),
if (!kIsWeb && inputText.isEmpty)
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Container(
height: 56,
alignment: Alignment.center,
child: IconButton(
icon: Icon(Icons.mic),
onPressed: () =>
voiceMessageAction(context),
),
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),
if (kIsWeb || inputText.isNotEmpty)
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Container(
height: 56,
alignment: Alignment.center,
child: IconButton(
icon: Icon(Icons.send),
onPressed: () => send(),
),
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),
],
),
)
: Container(),
],
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),
],
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),
);
}
}
class _EditContent extends StatelessWidget {
final Event event;
_EditContent(this.event);
@override
Widget build(BuildContext context) {
if (event == null) {
return Container();
}
return Row(
children: <Widget>[
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,
),
),
],
);
}
}