Merge pull request #41 from hackathon-comiko/reset_search

Reset Search, Refactor, Fix TextField behaviour.

Author: Pacane

lib/app_state.dart

@@ -3,6 +3,10 @@ import 'package:comiko/services.dart';
 import 'package:comiko/widgets/event_card.dart';
 
 class AppState {
+  static const String defaultCityFilter = "";
+  static const double defaultPriceFilter = 100.0;
+  static const int defaultDistanceFilter = 500;
+
   List<Event> events;
   Map<Event, bool> eventsFavoriteState = {};
   SortingCriteria sortingCriteria;
@@ -15,9 +19,9 @@ class AppState {
     sortingCriteria = SortingCriteria.date;
     events = [];
     eventsFavoriteState = {};
-    cityFilter = "";
-    priceFilter = 100.0;
-    distanceFilter = 500;
+    cityFilter = defaultCityFilter;
+    priceFilter = defaultPriceFilter;
+    distanceFilter = defaultDistanceFilter;
   }
 
   EventCardViewModel createViewModel(Event event) => new EventCardViewModel(
@@ -52,6 +56,12 @@ class AppState {
     events = sorted;
   }
 
+  void resetFilters() {
+    cityFilter = defaultCityFilter;
+    priceFilter = defaultPriceFilter;
+    distanceFilter = defaultDistanceFilter;
+  }
+
   AppState._(
     this.events,
     this.sortingCriteria,
@@ -172,6 +182,17 @@ class FetchEventsAction extends IsAction {
   }
 }
 
+class ResetFiltersAction extends IsAction {
+  @override
+  AppState handle(AppState state) {
+    state = state.clone();
+    state.resetFilters();
+    state.filterEventsWithActiveFilters();
+
+    return state;
+  }
+}
+
 abstract class IsAction {
   AppState handle(AppState state);
 }

lib/widgets/search_popup.dart

@@ -7,12 +7,22 @@ import 'package:redux/redux.dart';
 class SearchPopup extends StatelessWidget {
   final Store<AppState> store;
 
+  static const double minPrice = 0.0;
+  static const double maxPrice = 100.0;
+
+  static const double minDistance = 0.0;
+  static const double maxDistance = 600.0;
+
   SearchPopup({@required this.store});
 
   @override
   Widget build(BuildContext context) {
     return new AlertDialog(
       actions: [
+        new FlatButton(
+          onPressed: () => store.dispatch(new ResetFiltersAction()),
+          child: const Text('Réinitialiser'),
+        ),
         new FlatButton(
           onPressed: () => Navigator.pop(context),
           child: const Text('OK'),
@@ -23,26 +33,34 @@ class SearchPopup extends StatelessWidget {
         mainAxisSize: MainAxisSize.min,
         children: <Widget>[
           new ListTile(
-              leading: new Icon(Icons.location_city),
-              title: new StoreConnector<AppState, String>(
-                converter: (store) => store.state.cityFilter,
-                builder: (context, filter) {
-                  return new TextField(
-                    decoration: const InputDecoration(
-                      hintText: 'Entrer le nom de la ville',
-                    ),
-                    onSubmitted: (String value) =>
-                        store.dispatch(new UpdateCityFilterAction(value)),
-                  );
-                },
-              )),
+            leading: new Icon(Icons.location_city),
+            title: new StoreConnector<AppState, String>(
+              converter: (store) => store.state.cityFilter,
+              builder: (context, city) {
+                var cityFilterTextController =
+                    new TextEditingController(text: store.state.cityFilter)
+                      ..selection = new TextSelection(
+                        baseOffset: store.state.cityFilter.length,
+                        extentOffset: store.state.cityFilter.length,
+                      );
+                return new TextField(
+                  controller: cityFilterTextController,
+                  decoration: const InputDecoration(
+                    hintText: 'Entrer le nom de la ville',
+                  ),
+                  onSubmitted: (String value) =>
+                      store.dispatch(new UpdateCityFilterAction(value)),
+                );
+              },
+            ),
+          ),
           new ListTile(
             leading: new Icon(Icons.attach_money),
             title: new StoreConnector<AppState, double>(
                 builder: (context, price) => new Slider(
                       value: price,
-                      min: 0.0,
-                      max: 100.0,
+                      min: minPrice,
+                      max: maxPrice,
                       label: '${price.toStringAsFixed(0)}\$',
                       onChanged: (double value) => store.dispatch(
                             new UpdatePriceFilterAction(value),
@@ -53,14 +71,13 @@ class SearchPopup extends StatelessWidget {
           new ListTile(
             leading: new Icon(Icons.directions_car),
             title: new StoreConnector<AppState, int>(
-                builder: (context, value) =>
-                new Slider(
+                builder: (context, value) => new Slider(
                     value: value.roundToDouble(),
-                    max: 500.0,
+                    min: minDistance,
+                    max: maxDistance,
                     label: '${value}km',
-                    onChanged: (value) =>
-                        store.dispatch(
-                            new UpdateDistanceFilterAction(value.round()))),
+                    onChanged: (value) => store.dispatch(
+                        new UpdateDistanceFilterAction(value.round()))),
                 converter: (store) => store.state.distanceFilter),
           ),
         ],