Stub for creating and queriing from server implemented

wien_talks/wien_talks_flutter/lib/create_event_screen.dart

@@ -15,7 +15,7 @@ class CreateEventScreen extends StatelessWidget {
     return ScreenWidget(
         child: Column(
       children: [
-        NewsInputForm(onSubmit: (newsEventModel) {}),
+        NewsInputForm(),
         StreamBuilder(stream: LocationMgr().stream, builder: (BuildContext context, AsyncSnapshot<LocationData> snapshot) => Text(snapshot.data.toString())),
         Expanded(
           child: GetLocationWidget(

wien_talks/wien_talks_flutter/lib/location_mgr.dart

@@ -93,6 +93,7 @@ class LocationMgr {
     iconMarker = null;
     viewModel?.dispose();
     viewModel = null;
+    _lastLocationData = null;
   }
 
   Stream<LocationData> get stream => _subject.stream;

wien_talks/wien_talks_flutter/lib/main.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:serverpod_flutter/serverpod_flutter.dart';
 import 'package:wien_talks_client/wien_talks_client.dart';
-import 'package:wien_talks_flutter/go_router.dart';
+import 'package:wien_talks_flutter/helper/go_router.dart';
 
 /// Sets up a global client object that can be used to talk to the server from
 /// anywhere in our app. The client is generated from your server code
@@ -38,7 +38,7 @@ class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp.router(
-      title: 'Serverpod Demo',
+      title: 'Wien Talks',
       theme: ThemeData(primarySwatch: Colors.blue),
       routerConfig: router,
       //home: NewsScreen(),

wien_talks/wien_talks_flutter/lib/news_input_form.dart

@@ -1,10 +1,13 @@
 import 'package:flutter/material.dart';
-import 'package:wien_talks_flutter/models/news_event_model.dart';
+import 'package:loader_overlay/loader_overlay.dart';
+import 'package:location/location.dart';
+import 'package:wien_talks_client/wien_talks_client.dart';
+import 'package:wien_talks_flutter/location_mgr.dart';
+import 'package:wien_talks_flutter/main.dart';
+import 'package:wien_talks_flutter/widgets/error_snackbar.dart';
 
 class NewsInputForm extends StatefulWidget {
-  final Function(NewsEventModel) onSubmit;
-
-  const NewsInputForm({Key? key, required this.onSubmit}) : super(key: key);
+  const NewsInputForm({super.key});
 
   @override
   _NewsInputFormState createState() => _NewsInputFormState();
@@ -20,16 +23,29 @@ class _NewsInputFormState extends State<NewsInputForm> {
     super.dispose();
   }
 
-  void _submitForm() {
+  void _submitForm() async {
+    LocationData? locationData = LocationMgr().lastLocation;
+    if (locationData == null || locationData.latitude == null || locationData.longitude == null) {
+      ErrorSnackbar().show(context, "No location available, please retry later");
+      return;
+    }
     if (_formKey.currentState!.validate()) {
-      final newsData = NewsEventModel(
-        content: _newsController.text.trim(),
-        timestamp: DateTime.now(),
-        latitude: 0.0,
-        longitude: 0.0,
+      var handler = context.loaderOverlay..show();
+      try {
+        final newsData = CreateQuoteRequest(
+          text: _newsController.text.trim(),
+          lat: LocationMgr().lastLocation!.latitude!,
+          lng: LocationMgr().lastLocation!.longitude!,
         );
-      widget.onSubmit(newsData);
+        await client.quote.createQuote(newsData);
         _newsController.clear();
+      } catch (error) {
+        if (mounted) {
+          ErrorSnackbar().show(context, error.toString());
+        }
+      } finally {
+        handler.hide();
+      }
     }
   }
 

wien_talks/wien_talks_flutter/lib/news_screen.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
-import 'package:wien_talks_flutter/main.dart';
+import 'package:wien_talks_flutter/show_latest_news_widget.dart';
 import 'package:wien_talks_flutter/widgets/heading_text.dart';
 import 'package:wien_talks_flutter/widgets/screen_widget.dart';
 
@@ -28,15 +28,22 @@ class NewsScreen extends StatelessWidget {
     );
     return ScreenWidget(
       child: SingleChildScrollView(
-          child: StreamBuilder(
-              stream: client.quote.quoteUpdates(),
-              builder: (context, snapshot) {
-                if (snapshot.connectionState == ConnectionState.active) {
-                  return Text(snapshot.data?.text ?? 'Empty Text');
-                }
-
-                return Text('Empty or Error');
-              })),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            HeadingText(text: "Latest news"),
+            ShowLatestNewsWidget(),
+            SizedBox(
+              height: 30,
+            ),
+            ElevatedButton(
+                onPressed: () {
+                  context.pushNamed("create_event");
+                },
+                child: Text("Submit your own event")),
+          ],
+        ),
+      ),
     );
   }
 }

wien_talks/wien_talks_flutter/lib/show_latest_news_widget.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+import 'package:wien_talks_flutter/main.dart';
+
+class ShowLatestNewsWidget extends StatelessWidget {
+  const ShowLatestNewsWidget({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return StreamBuilder(
+        stream: client.quote.stream,
+        builder: (BuildContext context, AsyncSnapshot snapshot) {
+          if (snapshot.hasError) {
+            return Text('Error: ${snapshot.error}');
+          }
+          return Text(snapshot.data ?? "Be the first to submit amazing news!", style: TextStyle(fontSize: 20, color: Theme.of(context).colorScheme.error));
+          return Placeholder();
+        });
+  }
+}

wien_talks/wien_talks_flutter/lib/widgets/error_snackbar.dart

@@ -0,0 +1,12 @@
+import 'package:flutter/material.dart';
+
+class ErrorSnackbar {
+  void show(BuildContext context, String message) {
+    ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+      content: Text(message, style: TextStyle(color: Theme.of(context).colorScheme.onError)),
+      showCloseIcon: true,
+      duration: Duration(seconds: 30),
+      backgroundColor: Theme.of(context).colorScheme.error,
+    ));
+  }
+}

wien_talks/wien_talks_flutter/lib/widgets/screen_widget.dart

@@ -1,5 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:wien_talks_flutter/widgets/add-quote-fab.dart';
+import 'package:loader_overlay/loader_overlay.dart';
 
 class ScreenWidget extends StatelessWidget {
   final Widget child;
@@ -12,11 +12,11 @@ class ScreenWidget extends StatelessWidget {
       appBar: AppBar(
         title: const Text('News'),
       ),
-      floatingActionButton: AddQuoteFab(),
+//      floatingActionButton: AddQuoteFab(),
       body: SafeArea(
           child: Padding(
         padding: const EdgeInsets.all(8.0),
-        child: child,
+        child: LoaderOverlay(child: child),
       )),
     );
   }

wien_talks/wien_talks_flutter/pubspec.yaml

@@ -27,6 +27,8 @@ dependencies:
 
   go_router: ^16.1.0
 
+  loader_overlay: ^5.0.0
+
   location: ^8.0.1
 
   mapsforge_flutter: ^3.0.2