feat: Add location sharing

lib/widgets/event_content/map_bubble.dart

@@ -0,0 +1,58 @@
+import 'package:flutter_map/flutter_map.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:flutter/material.dart';
+
+class MapBubble extends StatelessWidget {
+  final double latitude;
+  final double longitude;
+  final double zoom;
+  final double width;
+  final double height;
+  final double radius;
+  const MapBubble({
+    this.latitude,
+    this.longitude,
+    this.zoom = 14.0,
+    this.width = 400,
+    this.height = 400,
+    this.radius = 10.0,
+    Key key,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(radius),
+      child: Container(
+        constraints: BoxConstraints.loose(Size(width, height)),
+        child: AspectRatio(
+          aspectRatio: width / height,
+          child: FlutterMap(
+            options: MapOptions(
+              center: LatLng(latitude, longitude),
+              zoom: zoom,
+            ),
+            layers: [
+              TileLayerOptions(
+                urlTemplate:
+                    'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+                subdomains: ['a', 'b', 'c'],
+              ),
+              MarkerLayerOptions(
+                markers: [
+                  Marker(
+                    point: LatLng(latitude, longitude),
+                    builder: (context) => Icon(
+                      Icons.location_pin,
+                      color: Colors.red,
+                    ),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/widgets/event_content/message_content.dart

@@ -18,6 +18,7 @@ import '../../config/app_config.dart';
 import 'html_message.dart';
 import '../matrix.dart';
 import 'message_download_content.dart';
+import 'map_bubble.dart';
 
 class MessageContent extends StatelessWidget {
   final Event event;
@@ -164,6 +165,42 @@ class MessageContent extends StatelessWidget {
               label: Text(L10n.of(context).encrypted),
             );
           case MessageTypes.Location:
+            final geoUri =
+                Uri.tryParse(event.content.tryGet<String>('geo_uri'));
+            if (geoUri != null &&
+                geoUri.scheme == 'geo' &&
+                geoUri.path != null) {
+              final latlong = geoUri.path
+                  .split(';')
+                  .first
+                  .split(',')
+                  .map((s) => double.tryParse(s))
+                  .toList();
+              if (latlong.length == 2 &&
+                  latlong.first != null &&
+                  latlong.last != null) {
+                return Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    MapBubble(
+                      latitude: latlong.first,
+                      longitude: latlong.last,
+                    ),
+                    SizedBox(height: 6),
+                    OutlinedButton.icon(
+                      icon: Icon(Icons.location_on_outlined, color: textColor),
+                      onPressed:
+                          UrlLauncher(context, geoUri.toString()).launchUrl,
+                      label: Text(
+                        L10n.of(context).openInMaps,
+                        style: TextStyle(color: textColor),
+                      ),
+                    ),
+                  ],
+                );
+              }
+            }
+            continue textmessage;
           case MessageTypes.None:
           textmessage:
           default: