help4bis
f9c21fddc4
B6 scroll-to-latest: ScrollController on the timeline; a small arrow-down FAB fades in once scrolled >400px up and animates back to the newest message on tap (overlaid on the list, not the FAB slot) B5 panic hold-ring: 700ms AnimationController drives a red progress ring around the panic icon; haptic + fire on completion, silent reset on early release; tap-hint and configured guard preserved Panic ring verified in-browser (ring fills, alert fires to the room). Scroll-to-latest verified with a deterministic widget test because the CanvasKit surface rejects synthetic scroll input in headless Chromium. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
841 lines
26 KiB
Dart
841 lines
26 KiB
Dart
// Version: 1.6.0 | Created: 2026-04-01 | Updated: 2026-07-04
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// Full chat screen — timeline + input + typing indicators + read receipts
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// + long-press context menu (quick reactions, reply, react, copy, edit,
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// delete) + day separators + same-sender message grouping + room options.
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import 'package:emoji_picker_flutter/emoji_picker_flutter.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:go_router/go_router.dart';
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import 'package:intl/intl.dart';
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import 'package:matrix/matrix.dart' show MatrixFile, Room;
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import '../../../app/theme.dart';
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import '../../../core/network/matrix_client.dart';
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import '../../../shared/utils/matrix_id.dart';
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import '../../../shared/utils/mxc_url.dart';
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import '../../../shared/widgets/matrix_avatar.dart';
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import '../../rooms/presentation/user_search_dialog.dart';
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import '../domain/message_model.dart';
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import 'chat_controller.dart';
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import 'message_bubble.dart';
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import 'message_input.dart';
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class ChatScreen extends ConsumerStatefulWidget {
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const ChatScreen({super.key, required this.roomId});
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final String roomId;
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@override
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ConsumerState<ChatScreen> createState() => _ChatScreenState();
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}
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class _ChatScreenState extends ConsumerState<ChatScreen> {
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String? _replyToEventId;
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String? _replyToSenderName;
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String? _replyToBody;
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String get _decodedRoomId => Uri.decodeComponent(widget.roomId);
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void _showRoomOptions(BuildContext context, Room room) {
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showModalBottomSheet<void>(
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context: context,
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isScrollControlled: true,
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builder: (_) => _RoomOptionsSheet(room: room),
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);
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}
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void _setReply(MessageModel message) {
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setState(() {
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_replyToEventId = message.eventId;
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_replyToSenderName = message.senderDisplayName;
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_replyToBody = message.body ?? '';
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});
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}
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void _clearReply() {
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setState(() {
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_replyToEventId = null;
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_replyToSenderName = null;
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_replyToBody = null;
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});
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}
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@override
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Widget build(BuildContext context) {
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final client = ref.watch(matrixClientProvider);
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final room = client.getRoomById(_decodedRoomId);
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final roomName = room?.getLocalizedDisplayname() ?? 'Chat';
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final roomAvatar = resolveMxcUrl(client, room?.avatar);
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return Scaffold(
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appBar: AppBar(
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titleSpacing: 0,
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title: Row(
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children: [
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MatrixAvatar(name: roomName, avatarUrl: roomAvatar, radius: 18),
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const SizedBox(width: 10),
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Flexible(child: Text(roomName, overflow: TextOverflow.ellipsis)),
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],
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),
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actions: [
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// Voice call
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IconButton(
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icon: const Icon(Icons.call),
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tooltip: 'Voice call',
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onPressed: () => context.push(
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'/calls/${Uri.encodeComponent(_decodedRoomId)}?video=0',
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),
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),
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// Video call
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IconButton(
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icon: const Icon(Icons.videocam_outlined),
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tooltip: 'Video call',
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onPressed: () => context.push(
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'/calls/${Uri.encodeComponent(_decodedRoomId)}?video=1',
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),
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),
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IconButton(
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icon: const Icon(Icons.more_vert),
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tooltip: 'Room options',
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onPressed: room != null
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? () => _showRoomOptions(context, room)
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: null,
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),
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],
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),
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body: Column(
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children: [
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Expanded(
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child: _Timeline(roomId: _decodedRoomId, onReply: _setReply),
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),
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_TypingIndicator(roomId: _decodedRoomId),
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_Input(
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roomId: _decodedRoomId,
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replyToEventId: _replyToEventId,
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replyToSenderName: _replyToSenderName,
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replyToBody: _replyToBody,
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onCancelReply: _clearReply,
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),
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],
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),
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);
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}
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}
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// ---------------------------------------------------------------------------
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// Timeline
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// ---------------------------------------------------------------------------
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class _Timeline extends ConsumerStatefulWidget {
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const _Timeline({required this.roomId, required this.onReply});
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final String roomId;
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final void Function(MessageModel) onReply;
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@override
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ConsumerState<_Timeline> createState() => _TimelineState();
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}
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class _TimelineState extends ConsumerState<_Timeline> {
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final _scrollController = ScrollController();
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/// The list is reverse:true, so the newest message sits at offset 0.
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/// Show the jump-to-latest button once the user scrolls up past this.
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static const _showButtonThreshold = 400.0;
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bool _showScrollToLatest = false;
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@override
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void initState() {
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super.initState();
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_scrollController.addListener(_onScroll);
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}
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@override
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void dispose() {
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_scrollController.removeListener(_onScroll);
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_scrollController.dispose();
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super.dispose();
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}
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void _onScroll() {
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if (!_scrollController.hasClients) return;
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final show = _scrollController.offset > _showButtonThreshold;
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if (show != _showScrollToLatest) {
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setState(() => _showScrollToLatest = show);
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}
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}
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void _scrollToLatest() {
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if (!_scrollController.hasClients) return;
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_scrollController.animateTo(
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0,
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duration: const Duration(milliseconds: 200),
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curve: Curves.easeOut,
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);
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}
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@override
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Widget build(BuildContext context) {
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final timelineAsync = ref.watch(chatTimelineProvider(widget.roomId));
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return timelineAsync.when(
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loading: () => const Center(child: CircularProgressIndicator()),
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error: (error, _) => Center(
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child: Padding(
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padding: const EdgeInsets.all(24),
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child: Text('Could not load messages: $error'),
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),
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),
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data: (messages) {
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if (messages.isEmpty) {
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return Center(
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child: Text(
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'No messages yet. Say hello!',
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: Theme.of(context).colorScheme.onSurface.withAlpha(102),
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),
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),
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);
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}
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return Stack(
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children: [
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ListView.builder(
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controller: _scrollController,
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reverse: true,
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padding: const EdgeInsets.symmetric(vertical: 8),
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itemCount: messages.length,
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itemBuilder: (context, index) {
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final message = messages[index];
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// List is reverse:true, so the visually-older neighbour is at
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// index+1 and the visually-newer neighbour is at index-1.
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final older = index < messages.length - 1
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? messages[index + 1]
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: null;
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final newer = index > 0 ? messages[index - 1] : null;
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const groupGap = Duration(minutes: 5);
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final isFirstInGroup =
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older == null ||
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older.senderId != message.senderId ||
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message.timestamp.difference(older.timestamp) > groupGap;
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final isLastInGroup =
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newer == null ||
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newer.senderId != message.senderId ||
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newer.timestamp.difference(message.timestamp) > groupGap;
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// A day chip sits above the first message of each local day.
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final showDay =
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older == null ||
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!_sameLocalDay(message.timestamp, older.timestamp);
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final bubble = _MessageWithGestures(
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message: message,
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roomId: widget.roomId,
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onReply: () => widget.onReply(message),
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isFirstInGroup: isFirstInGroup,
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isLastInGroup: isLastInGroup,
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);
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if (!showDay) return bubble;
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return Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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_DayChip(timestamp: message.timestamp),
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bubble,
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],
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);
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},
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),
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Positioned(
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right: 12,
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bottom: 12,
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child: AnimatedScale(
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duration: const Duration(milliseconds: 150),
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scale: _showScrollToLatest ? 1 : 0,
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child: FloatingActionButton.small(
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heroTag: 'scrollToLatest',
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onPressed: _scrollToLatest,
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tooltip: 'Jump to latest',
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child: const Icon(Icons.arrow_downward),
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),
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),
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),
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],
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);
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},
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);
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}
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}
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/// True when two timestamps fall on the same day in the local timezone.
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bool _sameLocalDay(DateTime a, DateTime b) {
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final la = a.toLocal();
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final lb = b.toLocal();
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return la.year == lb.year && la.month == lb.month && la.day == lb.day;
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}
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/// Centred date pill shown above the first message of each local day.
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class _DayChip extends StatelessWidget {
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const _DayChip({required this.timestamp});
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final DateTime timestamp;
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String _label() {
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final now = DateTime.now().toLocal();
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final local = timestamp.toLocal();
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final today = DateTime(now.year, now.month, now.day);
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final that = DateTime(local.year, local.month, local.day);
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final diff = today.difference(that).inDays;
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if (diff == 0) return 'Today';
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if (diff == 1) return 'Yesterday';
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if (local.year == now.year) return DateFormat('d MMM').format(local);
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return DateFormat('d MMM yyyy').format(local);
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Center(
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child: Container(
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margin: const EdgeInsets.symmetric(vertical: 12),
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
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decoration: BoxDecoration(
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color: theme.colorScheme.surfaceContainerHighest,
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(
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_label(),
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style: theme.textTheme.labelSmall?.copyWith(
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color: M8Colours.subtleText,
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fontWeight: FontWeight.w500,
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),
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),
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),
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);
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}
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}
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// ---------------------------------------------------------------------------
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// Long-press context menu
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// ---------------------------------------------------------------------------
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class _MessageWithGestures extends ConsumerWidget {
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const _MessageWithGestures({
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required this.message,
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required this.roomId,
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required this.onReply,
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this.isFirstInGroup = true,
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this.isLastInGroup = true,
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});
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final MessageModel message;
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final String roomId;
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final VoidCallback onReply;
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final bool isFirstInGroup;
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final bool isLastInGroup;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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return GestureDetector(
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onLongPress: () => _showContextMenu(context, ref),
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child: MessageBubble(
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message: message,
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isFirstInGroup: isFirstInGroup,
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isLastInGroup: isLastInGroup,
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),
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);
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}
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void _showContextMenu(BuildContext context, WidgetRef ref) {
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showModalBottomSheet<void>(
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context: context,
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builder: (_) => _MessageContextMenu(
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message: message,
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roomId: roomId,
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onQuickReact: (emoji) {
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Navigator.pop(context);
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ref
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.read(sendReactionProvider.notifier)
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.react(roomId, message.eventId, emoji);
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},
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onReply: () {
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Navigator.pop(context);
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onReply();
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},
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onReact: () {
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Navigator.pop(context);
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_showEmojiPicker(context, ref);
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},
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onCopy: () {
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Clipboard.setData(ClipboardData(text: message.body ?? ''));
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Navigator.pop(context);
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ScaffoldMessenger.of(
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context,
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).showSnackBar(const SnackBar(content: Text('Message copied.')));
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},
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onEdit: message.isMine && message.body != null
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? () {
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Navigator.pop(context);
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_showEditDialog(context, ref);
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}
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: null,
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onDelete: message.isMine
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? () async {
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Navigator.pop(context);
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await ref
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.read(deleteMessageProvider.notifier)
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.delete(roomId, message.eventId);
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}
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: null,
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),
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);
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}
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void _showEditDialog(BuildContext context, WidgetRef ref) {
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final controller = TextEditingController(text: message.body ?? '');
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showDialog<void>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('Edit message'),
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content: TextField(
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controller: controller,
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autofocus: true,
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maxLines: null,
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decoration: const InputDecoration(border: OutlineInputBorder()),
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(ctx).pop(),
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child: const Text('Cancel'),
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),
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FilledButton(
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onPressed: () async {
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final newText = controller.text.trim();
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Navigator.of(ctx).pop();
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if (newText.isEmpty || newText == message.body) return;
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final error = await ref
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.read(editMessageProvider.notifier)
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.edit(roomId, message.eventId, newText);
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if (error != null && context.mounted) {
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text('Edit failed: $error')));
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}
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},
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child: const Text('Save'),
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),
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],
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),
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);
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}
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void _showEmojiPicker(BuildContext context, WidgetRef ref) {
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showModalBottomSheet<void>(
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context: context,
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builder: (_) => SizedBox(
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height: 320,
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child: EmojiPicker(
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onEmojiSelected: (_, emoji) async {
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Navigator.pop(context);
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await ref
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.read(sendReactionProvider.notifier)
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.react(roomId, message.eventId, emoji.emoji);
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},
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config: const Config(
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emojiViewConfig: EmojiViewConfig(columns: 8, emojiSizeMax: 28),
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),
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),
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),
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);
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}
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}
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// ---------------------------------------------------------------------------
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// Room options sheet
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// ---------------------------------------------------------------------------
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class _RoomOptionsSheet extends ConsumerStatefulWidget {
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const _RoomOptionsSheet({required this.room});
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final Room room;
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@override
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ConsumerState<_RoomOptionsSheet> createState() => _RoomOptionsSheetState();
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}
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class _RoomOptionsSheetState extends ConsumerState<_RoomOptionsSheet> {
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bool _leaving = false;
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Future<void> _leaveRoom() async {
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final confirmed = await showDialog<bool>(
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context: context,
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builder: (_) => AlertDialog(
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title: const Text('Leave room?'),
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content: Text(
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'You will leave "${widget.room.getLocalizedDisplayname()}". '
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'You can rejoin if you have an invite.',
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(context).pop(false),
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child: const Text('Cancel'),
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),
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TextButton(
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onPressed: () => Navigator.of(context).pop(true),
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style: TextButton.styleFrom(
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foregroundColor: Theme.of(context).colorScheme.error,
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),
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child: const Text('Leave'),
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),
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],
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),
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);
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if (confirmed != true || !mounted) return;
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setState(() => _leaving = true);
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try {
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await widget.room.leave();
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if (mounted) {
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Navigator.of(context).pop(); // close sheet
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GoRouter.of(context).go('/rooms');
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}
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} on Exception catch (e) {
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if (mounted) {
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setState(() => _leaving = false);
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text('Could not leave room: $e')));
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}
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}
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}
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@override
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Widget build(BuildContext context) {
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final client = ref.watch(matrixClientProvider);
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final theme = Theme.of(context);
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final room = widget.room;
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final members = room.getParticipants();
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final canInvite = room.canInvite;
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return SafeArea(
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child: ConstrainedBox(
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constraints: BoxConstraints(
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maxHeight: MediaQuery.of(context).size.height * 0.75,
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Header
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Padding(
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padding: const EdgeInsets.fromLTRB(20, 16, 16, 4),
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child: Row(
|
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children: [
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Expanded(
|
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child: Text(
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room.getLocalizedDisplayname(),
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style: theme.textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.w600,
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),
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overflow: TextOverflow.ellipsis,
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),
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),
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IconButton(
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icon: const Icon(Icons.close),
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onPressed: () => Navigator.of(context).pop(),
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),
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],
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),
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),
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// Members section
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|
Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 4),
|
|
child: Text(
|
|
'Members (${members.length})',
|
|
style: theme.textTheme.labelMedium?.copyWith(
|
|
color: theme.colorScheme.primary,
|
|
fontWeight: FontWeight.w600,
|
|
),
|
|
),
|
|
),
|
|
Flexible(
|
|
child: ListView.builder(
|
|
shrinkWrap: true,
|
|
itemCount: members.length,
|
|
itemBuilder: (context, index) {
|
|
final member = members[index];
|
|
final name = member.displayName ?? member.id.matrixLocalpart;
|
|
final avatarUrl = resolveMxcUrl(client, member.avatarUrl);
|
|
final isMe = member.id == client.userID;
|
|
|
|
return ListTile(
|
|
dense: true,
|
|
leading: MatrixAvatar(
|
|
name: name,
|
|
avatarUrl: avatarUrl,
|
|
radius: 16,
|
|
),
|
|
title: Text(
|
|
isMe ? '$name (you)' : name,
|
|
style: theme.textTheme.bodyMedium,
|
|
),
|
|
subtitle: Text(
|
|
member.id,
|
|
style: theme.textTheme.bodySmall?.copyWith(
|
|
color: theme.colorScheme.onSurface.withAlpha(120),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
|
|
const Divider(),
|
|
|
|
// Actions
|
|
if (canInvite)
|
|
ListTile(
|
|
leading: const Icon(Icons.person_add_outlined),
|
|
title: const Text('Invite someone'),
|
|
onTap: () {
|
|
Navigator.of(context).pop();
|
|
showUserSearchDialog(context);
|
|
},
|
|
),
|
|
ListTile(
|
|
leading: _leaving
|
|
? const SizedBox(
|
|
width: 24,
|
|
height: 24,
|
|
child: CircularProgressIndicator(strokeWidth: 2),
|
|
)
|
|
: Icon(Icons.exit_to_app, color: theme.colorScheme.error),
|
|
title: Text(
|
|
'Leave room',
|
|
style: TextStyle(color: theme.colorScheme.error),
|
|
),
|
|
enabled: !_leaving,
|
|
onTap: _leaveRoom,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _MessageContextMenu extends StatelessWidget {
|
|
const _MessageContextMenu({
|
|
required this.message,
|
|
required this.roomId,
|
|
required this.onQuickReact,
|
|
required this.onReply,
|
|
required this.onReact,
|
|
required this.onCopy,
|
|
this.onEdit,
|
|
this.onDelete,
|
|
});
|
|
|
|
/// Six one-tap presets shown across the top of the menu.
|
|
static const _quickReactions = ['👍', '❤️', '😂', '😮', '😢', '🙏'];
|
|
|
|
final MessageModel message;
|
|
final String roomId;
|
|
final void Function(String emoji) onQuickReact;
|
|
final VoidCallback onReply;
|
|
final VoidCallback onReact;
|
|
final VoidCallback onCopy;
|
|
final VoidCallback? onEdit;
|
|
final VoidCallback? onDelete;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return SafeArea(
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
// Quick-reaction row: one-tap presets + open the full picker.
|
|
Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 8),
|
|
child: Row(
|
|
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
|
children: [
|
|
for (final emoji in _quickReactions)
|
|
InkWell(
|
|
borderRadius: BorderRadius.circular(22),
|
|
onTap: () => onQuickReact(emoji),
|
|
child: SizedBox(
|
|
width: 44,
|
|
height: 44,
|
|
child: Center(
|
|
child: Text(
|
|
emoji,
|
|
style: const TextStyle(fontSize: 24),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
InkWell(
|
|
borderRadius: BorderRadius.circular(22),
|
|
onTap: onReact,
|
|
child: SizedBox(
|
|
width: 44,
|
|
height: 44,
|
|
child: Icon(
|
|
Icons.add,
|
|
color: Theme.of(context).colorScheme.onSurface,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
const Divider(height: 1),
|
|
ListTile(
|
|
leading: const Icon(Icons.reply),
|
|
title: const Text('Reply'),
|
|
onTap: onReply,
|
|
),
|
|
ListTile(
|
|
leading: const Icon(Icons.add_reaction_outlined),
|
|
title: const Text('React'),
|
|
onTap: onReact,
|
|
),
|
|
if (message.body != null)
|
|
ListTile(
|
|
leading: const Icon(Icons.copy),
|
|
title: const Text('Copy text'),
|
|
onTap: onCopy,
|
|
),
|
|
if (onEdit != null)
|
|
ListTile(
|
|
leading: const Icon(Icons.edit_outlined),
|
|
title: const Text('Edit'),
|
|
onTap: onEdit,
|
|
),
|
|
if (onDelete != null)
|
|
ListTile(
|
|
leading: const Icon(Icons.delete_outline, color: Colors.red),
|
|
title: const Text('Delete', style: TextStyle(color: Colors.red)),
|
|
onTap: onDelete,
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Typing indicator
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class _TypingIndicator extends ConsumerWidget {
|
|
const _TypingIndicator({required this.roomId});
|
|
|
|
final String roomId;
|
|
|
|
@override
|
|
Widget build(BuildContext context, WidgetRef ref) {
|
|
final client = ref.watch(matrixClientProvider);
|
|
final room = client.getRoomById(roomId);
|
|
if (room == null) return const SizedBox.shrink();
|
|
|
|
// typingUsers returns Users currently typing (excluding self).
|
|
final typing = room.typingUsers
|
|
.where((u) => u.id != client.userID)
|
|
.map((u) => u.displayName ?? u.id.matrixLocalpart)
|
|
.toList();
|
|
|
|
if (typing.isEmpty) return const SizedBox(height: 4);
|
|
|
|
final label = typing.length == 1
|
|
? '${typing.first} is typing…'
|
|
: '${typing.take(2).join(', ')} are typing…';
|
|
|
|
return Padding(
|
|
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
|
|
child: Row(
|
|
children: [
|
|
Text(
|
|
label,
|
|
style: Theme.of(context).textTheme.bodySmall?.copyWith(
|
|
color: Theme.of(context).colorScheme.onSurface.withAlpha(153),
|
|
fontStyle: FontStyle.italic,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Input wrapper
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class _Input extends ConsumerWidget {
|
|
const _Input({
|
|
required this.roomId,
|
|
this.replyToEventId,
|
|
this.replyToSenderName,
|
|
this.replyToBody,
|
|
this.onCancelReply,
|
|
});
|
|
|
|
final String roomId;
|
|
final String? replyToEventId;
|
|
final String? replyToSenderName;
|
|
final String? replyToBody;
|
|
final VoidCallback? onCancelReply;
|
|
|
|
@override
|
|
Widget build(BuildContext context, WidgetRef ref) {
|
|
final isSending = ref.watch(sendMessageProvider);
|
|
final uploadState = ref.watch(uploadFileProvider);
|
|
final isUploading = uploadState == '';
|
|
|
|
return MessageInput(
|
|
isSending: isSending || isUploading,
|
|
replyTo: (replyToEventId != null && replyToSenderName != null)
|
|
? ReplyTo(
|
|
eventId: replyToEventId!,
|
|
senderDisplayName: replyToSenderName!,
|
|
body: replyToBody ?? '',
|
|
)
|
|
: null,
|
|
onCancelReply: onCancelReply,
|
|
onSend: (text) async {
|
|
final error = await ref
|
|
.read(sendMessageProvider.notifier)
|
|
.send(roomId, text, inReplyToEventId: replyToEventId);
|
|
onCancelReply?.call();
|
|
if (error != null && context.mounted) {
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Text('Failed to send: $error'),
|
|
backgroundColor: Theme.of(context).colorScheme.error,
|
|
),
|
|
);
|
|
}
|
|
},
|
|
onAttach: (MatrixFile file) async {
|
|
await ref.read(uploadFileProvider.notifier).upload(roomId, file);
|
|
final err = ref.read(uploadFileProvider);
|
|
if (err != null && err.isNotEmpty && context.mounted) {
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(
|
|
content: Text('Upload failed: $err'),
|
|
backgroundColor: Theme.of(context).colorScheme.error,
|
|
),
|
|
);
|
|
ref.read(uploadFileProvider.notifier).clearError();
|
|
}
|
|
},
|
|
);
|
|
}
|
|
}
|