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Merge pull request #413 from ericszimmermann/ez_marker_update_squashed

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Improve SharedMarker handling
This commit is contained in:
zjs81
2026-04-27 13:12:09 -07:00
committed by GitHub
parent e54f30d6fb 94d9afe8b1
commit a741e12ad1
40 changed files with 272 additions and 102 deletions
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lib/screens/map_screen.dart
+157 -48
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@@ -37,6 +37,7 @@ import 'line_of_sight_map_screen.dart';
class MapScreen extends StatefulWidget {
final LatLng? highlightPosition;
final String? highlightLabel;
final String? highlightMarkerKey;
final double highlightZoom;
final bool hideBackButton;
@@ -44,6 +45,7 @@ class MapScreen extends StatefulWidget {
super.key,
this.highlightPosition,
this.highlightLabel,
this.highlightMarkerKey,
this.highlightZoom = 15.0,
this.hideBackButton = false,
});
@@ -94,6 +96,19 @@ class _MapScreenState extends State<MapScreen> {
_removedMarkerIds = ids;
_removedMarkersLoaded = true;
});
// If this screen was opened to highlight a marker, and that marker
// was previously removed, re-enable it now that we've loaded the saved
// removed IDs.
if (widget.highlightMarkerKey != null &&
_removedMarkerIds.contains(widget.highlightMarkerKey)) {
final updated = Set<String>.from(_removedMarkerIds);
updated.remove(widget.highlightMarkerKey);
if (!mounted) return;
setState(() {
_removedMarkerIds = updated;
});
await _markerService.saveRemovedIds(updated);
}
}
bool _checkLocationPlausibility(double lat, double lon) {
@@ -229,6 +244,24 @@ class _MapScreenState extends State<MapScreen> {
: <Polyline>[],
);
// Collect polylines for shared markers' history with dashed lines
final List<Polyline> sharedMarkerPolylines = [];
for (final marker in sharedMarkers) {
if (marker.history.isNotEmpty) {
final points = List<LatLng>.from(marker.history);
points.add(marker.position);
sharedMarkerPolylines.add(
Polyline(
points: points,
color: marker.isChannel
? (marker.isPublicChannel ? Colors.orange : Colors.purple)
: Colors.blue,
strokeWidth: 3,
),
);
}
}
// Calculate center and zoom of all nodes, or default to (0, 0)
LatLng center = const LatLng(0, 0);
double initialZoom = 10.0;
@@ -475,6 +508,8 @@ class _MapScreenState extends State<MapScreen> {
),
if (_polylines.isNotEmpty && _isBuildingPathTrace)
PolylineLayer(polylines: _polylines),
if (sharedMarkerPolylines.isNotEmpty)
PolylineLayer(polylines: sharedMarkerPolylines),
MarkerLayer(
markers: [
if (highlightPosition != null)
@@ -1239,28 +1274,39 @@ class _MapScreenState extends State<MapScreen> {
}
List<_SharedMarker> _collectSharedMarkers(MeshCoreConnector connector) {
final markers = <_SharedMarker>[];
// Build a _SharedMarker per message (history empty), grouped by dedupe key.
// Afterwards pick the latest per key and fill its history from older ones.
final updatesByKey = <String, List<_SharedMarker>>{};
final selfName = connector.selfName ?? 'Me';
void addUpdate(_SharedMarker update) {
(updatesByKey[update.id] ??= <_SharedMarker>[]).add(update);
}
for (final contact in connector.contacts) {
final messages = connector.getMessages(contact);
for (final message in messages) {
final payload = _parseMarkerText(message.text);
final payload = parseMarkerText(message.text);
if (payload == null) continue;
final fromName = message.isOutgoing ? selfName : contact.name;
final id = _buildMarkerId(
final key = buildSharedMarkerKey(
sourceId: contact.publicKeyHex,
timestamp: message.timestamp,
text: message.text,
label: payload.label,
fromName: fromName,
flags: payload.flags,
isChannel: false,
);
markers.add(
addUpdate(
_SharedMarker(
id: id,
id: key,
position: payload.position,
label: payload.label,
label: payload.label.isEmpty
? context.l10n.map_sharedPin
: payload.label,
flags: payload.flags,
fromName: fromName,
sourceLabel: contact.name,
timestamp: message.timestamp,
isChannel: false,
isPublicChannel: false,
),
@@ -1272,23 +1318,28 @@ class _MapScreenState extends State<MapScreen> {
final isPublic = _isPublicChannel(channel);
final messages = connector.getChannelMessages(channel);
for (final message in messages) {
final payload = _parseMarkerText(message.text);
final payload = parseMarkerText(message.text);
if (payload == null) continue;
final id = _buildMarkerId(
final key = buildSharedMarkerKey(
sourceId: 'channel:${channel.index}',
timestamp: message.timestamp,
text: message.text,
label: payload.label,
fromName: message.senderName,
flags: payload.flags,
isChannel: true,
);
markers.add(
addUpdate(
_SharedMarker(
id: id,
id: key,
position: payload.position,
label: payload.label,
label: payload.label.isEmpty
? context.l10n.map_sharedPin
: payload.label,
flags: payload.flags,
fromName: message.senderName,
sourceLabel: channel.name.isEmpty
? 'Channel ${channel.index}'
: channel.name,
timestamp: message.timestamp,
isChannel: true,
isPublicChannel: isPublic,
),
@@ -1296,38 +1347,27 @@ class _MapScreenState extends State<MapScreen> {
}
}
final markers = <_SharedMarker>[];
updatesByKey.forEach((_, updates) {
updates.sort((a, b) => a.timestamp.compareTo(b.timestamp));
final latest = updates.last;
// History: older positions, drop consecutive duplicates at same position.
final history = <LatLng>[];
for (var i = 0; i < updates.length - 1; i++) {
final p = updates[i].position;
if (history.isEmpty ||
history.last.latitude != p.latitude ||
history.last.longitude != p.longitude) {
history.add(p);
}
}
markers.add(latest.copyWithHistory(history));
});
markers.sort((a, b) => b.timestamp.compareTo(a.timestamp));
return markers;
}
_MarkerPayload? _parseMarkerText(String text) {
final trimmed = text.trim();
if (!trimmed.startsWith('m:')) return null;
final parts = trimmed.substring(2).split('|');
if (parts.isEmpty) return null;
final coords = parts[0].split(',');
if (coords.length != 2) return null;
final lat = double.tryParse(coords[0].trim());
final lon = double.tryParse(coords[1].trim());
if (lat == null || lon == null) return null;
final label = parts.length > 1 ? parts[1].trim() : '';
final flags = parts.length > 2 ? parts[2].trim() : '';
return _MarkerPayload(
position: LatLng(lat, lon),
label: label.isEmpty ? context.l10n.map_sharedPin : label,
flags: flags,
);
}
String _buildMarkerId({
required String sourceId,
required DateTime timestamp,
required String text,
}) {
return '$sourceId|${timestamp.millisecondsSinceEpoch}|$text';
}
Marker _buildSharedMarker(_SharedMarker marker) {
final markerColor = marker.isChannel
? (marker.isPublicChannel ? Colors.orange : Colors.purple)
@@ -1337,7 +1377,15 @@ class _MapScreenState extends State<MapScreen> {
width: 60,
height: 60,
child: GestureDetector(
onTap: () => _showMarkerInfo(marker),
onTap: () async {
if (_removedMarkerIds.contains(marker.id)) {
setState(() {
_removedMarkerIds.remove(marker.id);
});
await _markerService.saveRemovedIds(_removedMarkerIds);
}
_showMarkerInfo(marker);
},
child: Column(
children: [
Container(
@@ -1554,13 +1602,19 @@ class _MapScreenState extends State<MapScreen> {
showDialog(
context: context,
builder: (dialogContext) => AlertDialog(
title: Text(marker.label),
title: Text(
marker.label.isEmpty ? context.l10n.map_sharedPin : marker.label,
),
content: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildInfoRow(context.l10n.map_from, marker.fromName),
_buildInfoRow(context.l10n.map_source, marker.sourceLabel),
_buildInfoRow(
context.l10n.map_sharedAt,
_formatLastSeen(marker.timestamp),
),
_buildInfoRow(
'Location',
'${marker.position.latitude.toStringAsFixed(6)}, ${marker.position.longitude.toStringAsFixed(6)}',
@@ -1727,6 +1781,10 @@ class _MapScreenState extends State<MapScreen> {
String defaultLabel,
) async {
final controller = TextEditingController(text: defaultLabel);
controller.selection = TextSelection(
baseOffset: 0,
extentOffset: controller.text.length,
);
return showDialog<String>(
context: context,
builder: (dialogContext) => AlertDialog(
@@ -2322,18 +2380,50 @@ class _GuessedLocation {
});
}
class _MarkerPayload {
class MarkerPayload {
final LatLng position;
final String label;
final String flags;
_MarkerPayload({
MarkerPayload({
required this.position,
required this.label,
required this.flags,
});
}
/// Parse a shared marker text message of the form
/// `m:<lat>,<lon>|<label>|<flags>` and return a [MarkerPayload].
MarkerPayload? parseMarkerText(String text) {
final trimmed = text.trim();
final match = RegExp(
r'm:([\-0-9.]+),([\-0-9.]+)\|([^|]*)\|(.*)',
).firstMatch(trimmed);
if (match == null) return null;
final lat = double.tryParse(match.group(1) ?? '');
final lon = double.tryParse(match.group(2) ?? '');
if (lat == null || lon == null) return null;
final label = (match.group(3) ?? '').trim();
final flags = (match.group(4) ?? '').trim();
return MarkerPayload(position: LatLng(lat, lon), label: label, flags: flags);
}
/// Build a normalized dedupe key for shared markers.
/// Keeps the same algorithm previously present in both chat and map screens.
String buildSharedMarkerKey({
required String sourceId,
required String label,
required String fromName,
required String flags,
required bool isChannel,
}) {
final normalizedLabel = label.trim().toLowerCase();
final normalizedFrom = fromName.trim().toLowerCase();
final normalizedFlags = flags.trim().toLowerCase();
final scope = isChannel ? 'ch' : 'dm';
return '$scope|$sourceId|$normalizedFrom|$normalizedLabel|$normalizedFlags';
}
class _SharedMarker {
final String id;
final LatLng position;
@@ -2341,8 +2431,10 @@ class _SharedMarker {
final String flags;
final String fromName;
final String sourceLabel;
final DateTime timestamp;
final bool isChannel;
final bool isPublicChannel;
final List<LatLng> history;
_SharedMarker({
required this.id,
@@ -2351,7 +2443,24 @@ class _SharedMarker {
required this.flags,
required this.fromName,
required this.sourceLabel,
required this.timestamp,
required this.isChannel,
required this.isPublicChannel,
this.history = const [],
});
_SharedMarker copyWithHistory(List<LatLng> newHistory) {
return _SharedMarker(
id: id,
position: position,
label: label,
flags: flags,
fromName: fromName,
sourceLabel: sourceLabel,
timestamp: timestamp,
isChannel: isChannel,
isPublicChannel: isPublicChannel,
history: newHistory,
);
}
}