overhaul using a trip struct that notifies its ui dependencies

frontend/lib/pages/new_trip.dart

@@ -1,8 +1,10 @@
+import 'package:anyway/structs/landmark.dart';
+import 'package:flutter/material.dart';
+import 'package:geocoding/geocoding.dart';
 
 import 'package:anyway/layout.dart';
-import 'package:anyway/structs/preferences.dart';
 import 'package:anyway/utils/fetch_trip.dart';
-import 'package:flutter/material.dart';
+import 'package:anyway/structs/preferences.dart';
 import "package:anyway/structs/trip.dart";
 
 
@@ -64,7 +66,16 @@ class _NewTripPageState extends State<NewTripPage> {
                         double.parse(lonController.text)
                       ];
                       Future<UserPreferences> preferences = loadUserPreferences();
-                      Future<Trip>? trip = fetchTrip(startPoint, preferences);
+                      Trip trip = Trip();
+                      trip.landmarks.add(
+                        Landmark(
+                          location: startPoint,
+                          name: "start",
+                          type: LandmarkType(name: 'start'),
+                          uuid: "pending"
+                        )
+                      );
+                      fetchTrip(trip, preferences);
                         Navigator.of(context).push(
                           MaterialPageRoute(
                             builder: (context) => BasePage(mainScreen: "map", trip: trip)

frontend/lib/pages/overview.dart

@@ -10,10 +10,10 @@ import 'package:anyway/modules/greeter.dart';
 
 
 class NavigationOverview extends StatefulWidget {
-  final Future<Trip> trip;
+  final Trip trip;
 
   NavigationOverview({
-    required this.trip
+    required this.trip,
   });
 
   @override
@@ -27,53 +27,56 @@ class _NavigationOverviewState extends State<NavigationOverview> {
   @override
   Widget build(BuildContext context) {
     return SlidingUpPanel(
-        renderPanelSheet: false,
         panel: _floatingPanel(),
-        collapsed: _floatingCollapsed(),
-        body: MapWidget(trip: widget.trip)
+        // collapsed: _floatingCollapsed(),
+        body: MapWidget(trip: widget.trip),
+        // renderPanelSheet: false,
+        // backdropEnabled: true,
+        maxHeight: MediaQuery.of(context).size.height * 0.8,
+        padding: EdgeInsets.all(10),
+        // panelSnapping: false,
+        borderRadius: BorderRadius.only(topLeft: Radius.circular(25), topRight: Radius.circular(25)),
+        boxShadow: [
+          BoxShadow(
+            blurRadius: 20.0,
+            color: Colors.black,
+          )
+        ],
     );
   }
 
   Widget _floatingCollapsed(){
-    final ThemeData theme = Theme.of(context);
-    return Container(
-      decoration: BoxDecoration(
-        color: theme.canvasColor,
-        borderRadius: BorderRadius.only(topLeft: Radius.circular(24.0), topRight: Radius.circular(24.0)),
-        boxShadow: []
-      ),
-      
-      child: Greeter(standalone: true, trip: widget.trip)
+    return Greeter(
+      trip: widget.trip
     );
   }
 
   Widget _floatingPanel(){
-    final ThemeData theme = Theme.of(context);
-    return Container(
-      decoration: BoxDecoration(
-        color: Colors.white,
-        borderRadius: BorderRadius.all(Radius.circular(24.0)),
-        boxShadow: [
-          BoxShadow(
-            blurRadius: 20.0,
-            color: theme.shadowColor,
-          ),
-        ]
-      ),
-      child: Center(
-        child: Padding(
-        padding: EdgeInsets.all(8.0),
-        child: SingleChildScrollView(
-          child: Column(
-            children: <Widget>[
-              Greeter(standalone: false, trip: widget.trip),
-              LandmarksOverview(trip: widget.trip),
-            ],
-          ),
+    return Column(
+      children: [
+        Padding(
+          padding: const EdgeInsets.all(15),
+          child: 
+            Center(
+              child: Container(
+                width: 40,
+                height: 5,
+                decoration: BoxDecoration(
+                  color: Colors.grey[300],
+                  borderRadius: BorderRadius.all(Radius.circular(12.0)),
+                ),
+              ),
+            ),
         ),
-      ),
-    ),
+        Expanded(
+          child: ListView(
+            children: [
+              Greeter(trip: widget.trip),
+              LandmarksOverview(trip: widget.trip)
+            ]
+          )
+        )
+      ],
     );
   }
-
 }