58 lines
1.3 KiB
Dart
58 lines
1.3 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:matrix/matrix.dart';
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import 'package:fluffychat/widgets/matrix.dart';
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class PresenceBuilder extends StatefulWidget {
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final Widget Function(BuildContext context, CachedPresence? presence) builder;
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final String? userId;
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final Client? client;
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const PresenceBuilder({
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required this.builder,
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this.userId,
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this.client,
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super.key,
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});
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@override
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State<PresenceBuilder> createState() => _PresenceBuilderState();
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}
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class _PresenceBuilderState extends State<PresenceBuilder> {
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CachedPresence? _presence;
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StreamSubscription<CachedPresence>? _sub;
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void _updatePresence(CachedPresence? presence) {
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if (!mounted) return;
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setState(() {
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_presence = presence;
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});
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}
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@override
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void initState() {
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super.initState();
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final client = widget.client ?? Matrix.of(context).client;
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final userId = widget.userId;
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if (userId != null) {
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client.fetchCurrentPresence(userId).then(_updatePresence);
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_sub = client.onPresenceChanged.stream
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.where((presence) => presence.userid == userId)
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.listen(_updatePresence);
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}
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}
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@override
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void dispose() {
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_sub?.cancel();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) => widget.builder(context, _presence);
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}
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