implemented comprehensive accessibility (A11y) support across the app

This commit is contained in:
2026-07-13 23:41:47 +02:00
parent 8274dd46cd
commit 478f0ff20b
46 changed files with 590 additions and 226 deletions
+1
View File
@@ -85,6 +85,7 @@ class _ChatListViewState extends State<_ChatListView> {
title: const Text('Talk'),
actions: [
IconButton(
tooltip: 'Suchen',
icon: const Icon(Icons.search),
onPressed: () {
final rooms = bloc.state.data?.rooms;
+5 -1
View File
@@ -27,7 +27,11 @@ class JoinChat extends SearchDelegate<String> {
},
),
if (query.isNotEmpty)
IconButton(onPressed: () => query = '', icon: const Icon(Icons.clear)),
IconButton(
tooltip: 'Leeren',
onPressed: () => query = '',
icon: const Icon(Icons.clear),
),
];
@override
+5 -1
View File
@@ -25,7 +25,11 @@ class SearchChat extends SearchDelegate<GetRoomResponseObject?> {
@override
List<Widget>? buildActions(BuildContext context) => [
if (query.isNotEmpty)
IconButton(onPressed: () => query = '', icon: const Icon(Icons.clear)),
IconButton(
tooltip: 'Leeren',
onPressed: () => query = '',
icon: const Icon(Icons.clear),
),
];
@override
+65 -60
View File
@@ -9,6 +9,7 @@ import '../../../../share_intent/remote_file_ref.dart';
import '../../../../state/app/modules/chat/bloc/chat_bloc.dart';
import '../../../../utils/downloads/download_job.dart';
import '../../../../utils/haptics.dart';
import '../../../../widget/a11y/a11y_labels.dart';
import '../../../../widget/demo_restricted.dart';
import '../../../../widget/downloads/download_trigger.dart';
import '../data/chat_bubble_styles.dart';
@@ -120,9 +121,7 @@ class _ChatBubbleState extends State<ChatBubble>
if (!_rendersAsCommentBubble) {
base = styles.getSystemStyle();
} else {
base = widget.isSender
? styles.getSelfStyle()
: styles.getRemoteStyle();
base = widget.isSender ? styles.getSelfStyle() : styles.getRemoteStyle();
}
switch (widget.matchHighlight) {
case SearchHighlight.none:
@@ -130,7 +129,9 @@ class _ChatBubbleState extends State<ChatBubble>
case SearchHighlight.secondary:
return base.copyWith(
borderWidth: 1.5,
borderColor: Theme.of(context).colorScheme.primary.withValues(alpha: 0.45),
borderColor: Theme.of(
context,
).colorScheme.primary.withValues(alpha: 0.45),
);
case SearchHighlight.active:
return base.copyWith(
@@ -342,68 +343,72 @@ class _BubbleContent extends StatelessWidget {
});
@override
Widget build(BuildContext context) => Container(
constraints: BoxConstraints(
maxWidth: MediaQuery.of(context).size.width * 0.9,
minWidth: showActorDisplayName
? actorText.size.width
: timeText.size.width + (isSender ? spacing + timeIconSize : 0) + 3,
),
child: Stack(
children: [
if (showActorDisplayName) Positioned(top: 0, left: 0, child: actorWidget),
Padding(
padding: EdgeInsets.only(
bottom: showBubbleTime ? 18 : 0,
top: showActorDisplayName ? 18 : 0,
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (parent != null &&
bubbleData.messageType ==
GetRoomResponseObjectMessageType.comment) ...[
AnswerReference(
referenceMessage: parent!,
selfId: selfId,
),
const SizedBox(height: 5),
],
messageWidget,
],
),
),
if (showBubbleTime)
Positioned(
bottom: 0,
right: 0,
child: Row(
Widget build(BuildContext context) => MergeSemantics(
child: Container(
constraints: BoxConstraints(
maxWidth: MediaQuery.of(context).size.width * 0.9,
minWidth: showActorDisplayName
? actorText.size.width
: timeText.size.width + (isSender ? spacing + timeIconSize : 0) + 3,
),
child: Stack(
children: [
if (showActorDisplayName)
Positioned(top: 0, left: 0, child: actorWidget),
Padding(
padding: EdgeInsets.only(
bottom: showBubbleTime ? 18 : 0,
top: showActorDisplayName ? 18 : 0,
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
timeText,
if (isSender) ...[
SizedBox(width: spacing),
Icon(
isRead ? Icons.done_all_outlined : Icons.done_outlined,
size: timeIconSize,
color: timeIconColor,
),
if (parent != null &&
bubbleData.messageType ==
GetRoomResponseObjectMessageType.comment) ...[
AnswerReference(referenceMessage: parent!, selfId: selfId),
const SizedBox(height: 5),
],
messageWidget,
],
),
),
if (downloadJob?.status.value is DownloadInProgress)
Positioned(
bottom: 0,
right: 0,
left: 0,
child: LinearProgressIndicator(
value: () {
final s = downloadJob!.status.value as DownloadInProgress;
return s.percent <= 0 ? null : s.percent / 100;
}(),
if (showBubbleTime)
Positioned(
bottom: 0,
right: 0,
child: Row(
children: [
timeText,
if (isSender) ...[
SizedBox(width: spacing),
Icon(
isRead ? Icons.done_all_outlined : Icons.done_outlined,
size: timeIconSize,
color: timeIconColor,
semanticLabel: isRead
? A11yLabels.messageRead
: A11yLabels.messageSent,
),
],
],
),
),
),
],
if (downloadJob?.status.value is DownloadInProgress)
Positioned(
bottom: 0,
right: 0,
left: 0,
child: LinearProgressIndicator(
semanticsLabel: A11yLabels.downloadingFile,
value: () {
final s = downloadJob!.status.value as DownloadInProgress;
return s.percent <= 0 ? null : s.percent / 100;
}(),
),
),
],
),
),
);
}
@@ -6,6 +6,7 @@ import '../../../../api/marianumcloud/talk/delete_react_message/delete_react_mes
import '../../../../api/marianumcloud/talk/react_message/react_message.dart';
import '../../../../api/marianumcloud/talk/react_message/react_message_params.dart';
import '../../../../api/marianumcloud/talk/room/get_room_response.dart';
import '../../../../widget/a11y/a11y_labels.dart';
import '../../../../widget/async_action_button.dart';
import '../../../../widget/demo_restricted.dart';
import '../../../../widget/emoji_text.dart';
@@ -41,44 +42,58 @@ class ChatBubbleReactions extends StatelessWidget {
children: reactions.entries.map<Widget>((e) {
final hasSelfReacted =
bubbleData.reactionsSelf?.contains(e.key) ?? false;
void toggle() {
if (guardDemoAction(context)) return;
runWithErrorDialog(context, () async {
if (hasSelfReacted) {
await DeleteReactMessage(
chatToken: chatData.token,
messageId: bubbleData.id,
params: DeleteReactMessageParams(e.key),
).run();
} else {
await ReactMessage(
chatToken: chatData.token,
messageId: bubbleData.id,
params: ReactMessageParams(e.key),
).run();
}
onChanged(renew: true);
});
}
// Ownership (eigene Reaktion) wird visuell nur über die
// Hintergrundfarbe transportiert für den Screenreader ins Label.
final label = hasSelfReacted
? '${e.key} ${e.value}, ${A11yLabels.yourReaction}'
: '${e.key} ${e.value}';
return Container(
margin: const EdgeInsets.only(right: 2.5, left: 2.5),
child: ActionChip(
label: Row(
mainAxisSize: MainAxisSize.min,
children: [
EmojiText(e.key, size: EmojiText.sizeInline),
const SizedBox(width: 4),
Text('${e.value}'),
],
child: Semantics(
button: true,
label: label,
onTap: toggle,
child: ExcludeSemantics(
child: ActionChip(
label: Row(
mainAxisSize: MainAxisSize.min,
children: [
EmojiText(e.key, size: EmojiText.sizeInline),
const SizedBox(width: 4),
Text('${e.value}'),
],
),
visualDensity: const VisualDensity(
vertical: VisualDensity.minimumDensity,
horizontal: VisualDensity.minimumDensity,
),
padding: EdgeInsets.zero,
backgroundColor: hasSelfReacted
? Theme.of(context).primaryColor
: null,
onPressed: toggle,
),
),
visualDensity: const VisualDensity(
vertical: VisualDensity.minimumDensity,
horizontal: VisualDensity.minimumDensity,
),
padding: EdgeInsets.zero,
backgroundColor: hasSelfReacted
? Theme.of(context).primaryColor
: null,
onPressed: () {
if (guardDemoAction(context)) return;
runWithErrorDialog(context, () async {
if (hasSelfReacted) {
await DeleteReactMessage(
chatToken: chatData.token,
messageId: bubbleData.id,
params: DeleteReactMessageParams(e.key),
).run();
} else {
await ReactMessage(
chatToken: chatData.token,
messageId: bubbleData.id,
params: ReactMessageParams(e.key),
).run();
}
onChanged(renew: true);
});
},
),
);
}).toList(),
@@ -259,6 +259,7 @@ class _ReactionsRowState extends State<_ReactionsRow> {
],
_groupDivider(context),
IconButton(
tooltip: 'Reaktion hinzufügen',
onPressed: busy ? null : () => _showEmojiPicker(context),
style: IconButton.styleFrom(
padding: EdgeInsets.zero,
@@ -30,6 +30,7 @@ class ChatSearchAppBar extends StatelessWidget implements PreferredSizeWidget {
: '${activeIndex + 1}/$matchCount';
return AppBar(
leading: IconButton(
tooltip: 'Zurück',
icon: const Icon(Icons.arrow_back),
onPressed: onClose,
),
@@ -54,10 +55,12 @@ class ChatSearchAppBar extends StatelessWidget implements PreferredSizeWidget {
),
),
IconButton(
tooltip: 'Vorheriges Ergebnis',
icon: const Icon(Icons.keyboard_arrow_up),
onPressed: onPrevious,
),
IconButton(
tooltip: 'Nächstes Ergebnis',
icon: const Icon(Icons.keyboard_arrow_down),
onPressed: onNext,
),
@@ -268,6 +268,7 @@ class _ChatTextfieldState extends State<ChatTextfield> {
),
),
IconButton(
tooltip: 'Antwort verwerfen',
onPressed: () {
chatBloc.setReferenceMessageId(null);
_setDraftReply(null);
+26 -12
View File
@@ -14,6 +14,7 @@ import '../../../../routing/app_routes.dart';
import '../../../../state/app/modules/chat/bloc/chat_bloc.dart';
import '../../../../state/app/modules/chat_list/bloc/chat_list_bloc.dart';
import '../../../../utils/haptics.dart';
import '../../../../widget/a11y/a11y_labels.dart';
import '../../../../widget/async_action_button.dart';
import '../../../../widget/confirm_dialog.dart';
import '../../../../widget/debug/debug_tile.dart';
@@ -106,6 +107,7 @@ class _ChatTileState extends State<ChatTile> {
Icons.star,
color: Colors.amberAccent,
size: 15,
semanticLabel: A11yLabels.favorite,
),
),
),
@@ -123,7 +125,11 @@ class _ChatTileState extends State<ChatTile> {
),
if (widget.hasDraft) ...[
const SizedBox(width: 5),
const Icon(Icons.edit_outlined, size: 15),
const Icon(
Icons.edit_outlined,
size: 15,
semanticLabel: A11yLabels.draft,
),
],
],
),
@@ -134,17 +140,25 @@ class _ChatTileState extends State<ChatTile> {
),
trailing: widget.data.unreadMessages <= 0
? null
: Container(
padding: const EdgeInsets.all(1),
decoration: BoxDecoration(
color: Theme.of(context).primaryColor,
borderRadius: BorderRadius.circular(30),
),
constraints: const BoxConstraints(minWidth: 20, minHeight: 20),
child: Text(
'${widget.data.unreadMessages}',
style: const TextStyle(color: Colors.white, fontSize: 15),
textAlign: TextAlign.center,
: Semantics(
label: '${widget.data.unreadMessages} ${A11yLabels.unread}',
child: ExcludeSemantics(
child: Container(
padding: const EdgeInsets.all(1),
decoration: BoxDecoration(
color: Theme.of(context).primaryColor,
borderRadius: BorderRadius.circular(30),
),
constraints: const BoxConstraints(
minWidth: 20,
minHeight: 20,
),
child: Text(
'${widget.data.unreadMessages}',
style: const TextStyle(color: Colors.white, fontSize: 15),
textAlign: TextAlign.center,
),
),
),
),
onTap: () {
@@ -16,7 +16,10 @@ class SplitViewPlaceholder extends StatelessWidget {
data: MediaQuery.of(
context,
).copyWith(invertColors: !AppTheme.isDarkMode(context)),
child: Image.asset('assets/logo/icon.png', height: 200),
// Dekoratives Logo der „Talk"-Text darunter trägt die Aussage.
child: ExcludeSemantics(
child: Image.asset('assets/logo/icon.png', height: 200),
),
),
const SizedBox(height: 30),
const Text(