Kieran/zap-stream-flutter
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feat: chat mentions

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closes #17
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Kieran
2025-05-15 10:53:58 +01:00
parent 12b4475c60
commit 5e28b40c5c
1 changed files with 125 additions and 1 deletions
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126
lib/widgets/chat_write.dart
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@ -1,8 +1,12 @@
import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
import 'package:ndk/ndk.dart';
import 'package:ndk/shared/nips/nip19/nip19.dart';
import 'package:zap_stream_flutter/main.dart';
import 'package:zap_stream_flutter/theme.dart';
import 'package:zap_stream_flutter/utils.dart';
import 'package:zap_stream_flutter/widgets/avatar.dart';
import 'package:zap_stream_flutter/widgets/profile.dart';
class WriteMessageWidget extends StatefulWidget {
final StreamEvent stream;
@ -15,11 +19,128 @@ class WriteMessageWidget extends StatefulWidget {
class __WriteMessageWidget extends State<WriteMessageWidget> {
late final TextEditingController _controller;
OverlayEntry? _entry;
late FocusNode _focusNode;
@override
void initState() {
super.initState();
_focusNode = FocusNode();
_focusNode.addListener(() {
if (!_focusNode.hasFocus && _entry != null) {
_entry!.remove();
_entry = null;
}
});
_controller = TextEditingController();
_controller.addListener(() {
if (_controller.text.endsWith("@")) {
// start auto-complete
_showAutoComplete();
}
});
}
@override
void dispose() {
if (_entry != null) {
_entry!.remove();
}
_controller.dispose();
super.dispose();
}
void _showAutoComplete() {
if (_entry != null) {
_entry!.remove();
_entry = null;
}
final pos = context.findRenderObject() as RenderBox?;
_entry = OverlayEntry(
builder: (context) {
return ValueListenableBuilder(
valueListenable: _controller,
builder: (context, v, _) {
final selectionStart = v.text.lastIndexOf("@");
if (selectionStart == -1) {
_entry!.remove();
_entry = null;
return SizedBox();
}
final search = v.text.substring(selectionStart + 1, v.text.length);
if (search.isEmpty) {
return SizedBox();
}
return Stack(
children: [
Positioned(
left: 0,
bottom: (pos?.paintBounds.bottom ?? 0),
width: MediaQuery.of(context).size.width,
child: Container(
padding: EdgeInsets.symmetric(horizontal: 4, vertical: 8),
decoration: BoxDecoration(
color: LAYER_2,
borderRadius: DEFAULT_BR,
),
child: FutureBuilder(
future: ndkCache.searchMetadatas(search, 5),
builder: (context, state) {
if (state.data?.isEmpty ?? true) {
return Text("No user found");
}
return Column(
spacing: 4,
children:
(state.data ?? [])
.groupListsBy((m) => m.pubKey)
.entries
.map(
(m) => GestureDetector(
onTap: () {
// replace search string with npub
_controller
.text = _controller.text.replaceRange(
selectionStart,
_controller.text.length,
"nostr:${Nip19.encodePubKey(m.value.first.pubKey)}",
);
_entry!.remove();
_entry = null;
},
child: Row(
spacing: 4,
children: [
AvatarWidget(
profile: m.value.first,
size: 30,
),
Expanded(
child: Text(
ProfileNameWidget.nameFromProfile(
m.value.first,
),
),
),
],
),
),
)
.toList(),
);
},
),
),
),
],
);
},
);
},
);
Overlay.of(context).insert(_entry!);
}
Future<void> _sendMessage(BuildContext context) async {
@ -35,7 +156,7 @@ class __WriteMessageWidget extends State<WriteMessageWidget> {
],
);
_controller.clear();
FocusScope.of(context).unfocus();
_focusNode.unfocus();
final res = ndk.broadcast.broadcast(nostrEvent: chatMsg);
await res.broadcastDoneFuture;
}
@ -55,6 +176,9 @@ class __WriteMessageWidget extends State<WriteMessageWidget> {
children: [
Expanded(
child: TextField(
maxLines: 3,
minLines: 1,
focusNode: _focusNode,
controller: _controller,
onSubmitted: (_) => _sendMessage(context),
decoration: InputDecoration(