oc-search porting to flutter (missing compose + workflow editor)

lib/pages/map.dart

@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:oc_front/pages/abstract_page.dart';
+
+class  MapFactory implements AbstractFactory {
+  static GlobalKey<MapPageWidgetState> key = GlobalKey<MapPageWidgetState>();
+  @override bool searchFill() { return false; }
+  @override Widget factory(GoRouterState state, List<String> args) { return MapPageWidget(); }
+  @override void search(BuildContext context) { }
+}
+
+class MapPageWidget extends StatefulWidget {
+  MapPageWidget(): super(key: MapFactory.key);
+  @override MapPageWidgetState createState() => MapPageWidgetState();
+  static void search(BuildContext context) { }
+  static Widget factory() { return MapPageWidget(); }
+}
+class MapPageWidgetState extends State<MapPageWidget> {
+  double currentZoom = 2.0;
+  LatLng currentCenter = const LatLng(51.5, -0.09);
+  static final MapController _mapController = MapController();
+  void _zoom() {
+    currentZoom = currentZoom - 1;
+    _mapController.move(currentCenter, currentZoom);
+}
+
+  @override Widget build(BuildContext context) {
+    return Expanded( 
+      child : FlutterMap(
+        mapController: _mapController,
+        options: MapOptions(
+                  initialCenter: currentCenter,
+                  initialZoom: currentZoom,
+                ),
+        children: [
+            TileLayer(
+              urlTemplate: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+              userAgentPackageName: 'dev.fleaflet.flutter_map.example',
+            )
+        ],
+      )
+    );
+  }
+}