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fluffychat
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refactor: Performance boost for avatar widget

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pull/1462/head
Krille 9 months ago
parent 9906668f1c
commit 58577bb9e8
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GPG Key ID: E067ECD60F1A0652
2 changed files with 148 additions and 119 deletions
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211
lib/widgets/avatar.dart
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@ -19,7 +19,7 @@ class Avatar extends StatelessWidget {
final IconData? icon;
final BorderSide? border;
const Avatar({
Avatar({
this.mxContent,
this.name,
this.size = defaultSize,
@ -31,122 +31,129 @@ class Avatar extends StatelessWidget {
this.border,
this.icon,
super.key,
});
}) : fallbackLetters = name?.firstTwoCharsOrFallback ?? '@',
textColor = name?.lightColorAvatar,
noPic = mxContent == null ||
mxContent.toString().isEmpty ||
mxContent.toString() == 'null';
final String fallbackLetters;
final Color? textColor;
final bool noPic;
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
var fallbackLetters = '@';
final name = this.name;
if (name != null) {
if (name.runes.length >= 2) {
fallbackLetters = String.fromCharCodes(name.runes, 0, 2);
} else if (name.runes.length == 1) {
fallbackLetters = name;
}
}
final noPic = mxContent == null ||
mxContent.toString().isEmpty ||
mxContent.toString() == 'null';
final textColor = name?.lightColorAvatar;
final textWidget = Container(
color: textColor,
alignment: Alignment.center,
child: Text(
fallbackLetters,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: (size / 3).roundToDouble(),
),
),
);
final borderRadius = this.borderRadius ?? BorderRadius.circular(size / 2);
final presenceUserId = this.presenceUserId;
final container = Stack(
children: [
SizedBox(
width: size,
height: size,
child: Material(
color: theme.brightness == Brightness.light
? Colors.white
: Colors.black,
shape: RoundedRectangleBorder(
borderRadius: borderRadius,
side: border ?? BorderSide.none,
),
clipBehavior: Clip.hardEdge,
child: noPic
? textWidget
: MxcImage(
client: client,
key: ValueKey(mxContent.toString()),
cacheKey: '${mxContent}_$size',
uri: mxContent,
fit: BoxFit.cover,
width: size,
height: size,
placeholder: (_) => Center(
child: Icon(
Icons.person_2,
color: theme.colorScheme.tertiary,
size: size / 1.5,
return InkWell(
onTap: onTap,
borderRadius: borderRadius,
child: Stack(
children: [
SizedBox(
width: size,
height: size,
child: Material(
color: theme.brightness == Brightness.light
? Colors.white
: Colors.black,
shape: RoundedRectangleBorder(
borderRadius: borderRadius,
side: border ?? BorderSide.none,
),
clipBehavior: Clip.hardEdge,
child: noPic
? Container(
color: textColor,
alignment: Alignment.center,
child: Text(
fallbackLetters,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: (size / 3).roundToDouble(),
),
),
)
: MxcImage(
client: client,
key: ValueKey(mxContent.toString()),
cacheKey: '${mxContent}_$size',
uri: mxContent,
fit: BoxFit.cover,
width: size,
height: size,
placeholder: (_) => Center(
child: Icon(
Icons.person_2,
color: theme.colorScheme.tertiary,
size: size / 1.5,
),
),
),
),
),
),
),
if (presenceUserId != null)
PresenceBuilder(
client: client,
userId: presenceUserId,
builder: (context, presence) {
if (presence == null ||
(presence.presence == PresenceType.offline &&
presence.lastActiveTimestamp == null)) {
return const SizedBox.shrink();
}
final dotColor = presence.presence.isOnline
? Colors.green
: presence.presence.isUnavailable
? Colors.orange
: Colors.grey;
return Positioned(
bottom: -3,
right: -3,
child: Container(
width: 16,
height: 16,
decoration: BoxDecoration(
color: presenceBackgroundColor ?? theme.colorScheme.surface,
borderRadius: BorderRadius.circular(32),
),
alignment: Alignment.center,
if (presenceUserId != null)
PresenceBuilder(
client: client,
userId: presenceUserId,
builder: (context, presence) {
if (presence == null ||
(presence.presence == PresenceType.offline &&
presence.lastActiveTimestamp == null)) {
return const SizedBox.shrink();
}
final dotColor = presence.presence.isOnline
? Colors.green
: presence.presence.isUnavailable
? Colors.orange
: Colors.grey;
return Positioned(
bottom: -3,
right: -3,
child: Container(
width: 10,
height: 10,
width: 16,
height: 16,
decoration: BoxDecoration(
color: dotColor,
borderRadius: BorderRadius.circular(16),
border: Border.all(
width: 1,
color: theme.colorScheme.surface,
color:
presenceBackgroundColor ?? theme.colorScheme.surface,
borderRadius: BorderRadius.circular(32),
),
alignment: Alignment.center,
child: Container(
width: 10,
height: 10,
decoration: BoxDecoration(
color: dotColor,
borderRadius: BorderRadius.circular(16),
border: Border.all(
width: 1,
color: theme.colorScheme.surface,
),
),
),
),
),
);
},
),
],
);
if (onTap == null) return container;
return InkWell(
onTap: onTap,
borderRadius: borderRadius,
child: container,
);
},
),
],
),
);
}
}
extension on String {
String get firstTwoCharsOrFallback {
var fallbackLetters = '@';
if (runes.length >= 2) {
fallbackLetters = String.fromCharCodes(runes, 0, 2);
} else if (runes.length == 1) {
fallbackLetters = this;
}
return fallbackLetters;
}
}

56
lib/widgets/presence_builder.dart
Unescape Escape View File

@ -1,10 +1,12 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:matrix/matrix.dart';
import 'package:fluffychat/widgets/matrix.dart';
class PresenceBuilder extends StatelessWidget {
class PresenceBuilder extends StatefulWidget {
final Widget Function(BuildContext context, CachedPresence? presence) builder;
final String? userId;
final Client? client;
@ -17,21 +19,41 @@ class PresenceBuilder extends StatelessWidget {
});
@override
Widget build(BuildContext context) {
final userId = this.userId;
if (userId == null) return builder(context, null);
final client = this.client ?? Matrix.of(context).client;
return FutureBuilder<CachedPresence>(
future: client.fetchCurrentPresence(userId),
builder: (context, cachedPresenceSnapshot) => StreamBuilder(
stream: client.onPresenceChanged.stream
.where((cachedPresence) => cachedPresence.userid == userId),
builder: (context, snapshot) => builder(
context,
snapshot.data ?? cachedPresenceSnapshot.data,
),
),
);
State<PresenceBuilder> createState() => _PresenceBuilderState();
}
class _PresenceBuilderState extends State<PresenceBuilder> {
CachedPresence? _presence;
StreamSubscription<CachedPresence>? _sub;
@override
void initState() {
final client = widget.client ?? Matrix.of(context).client;
final userId = widget.userId;
if (userId != null) {
WidgetsBinding.instance.addPostFrameCallback((_) async {
final presence = await client.fetchCurrentPresence(userId);
setState(() {
_presence = presence;
_sub = client.onPresenceChanged.stream.listen((presence) {
if (!mounted) return;
setState(() {
_presence = presence;
});
});
});
});
}
super.initState();
}
@override
void dispose() {
_sub?.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) => widget.builder(context, _presence);
}

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