ML-260 Set ISO when selecting a film (#267)

* set ISO according to film

* remove unnecessary equipment profile listeners

* Update e2e_test.dart

integration_test/e2e_test.dart

@@ -136,8 +136,8 @@ void testE2E(String description) {
       );
 
       /// Set another film and another ISO
-      await tester.openPickerAndSelect<IsoValuePicker, IsoValue>('200');
       await tester.openPickerAndSelect<FilmPicker, Film>(mockFilms[1].name);
+      await tester.openPickerAndSelect<IsoValuePicker, IsoValue>('200');
       await _expectMeteringStateAndMeasure(
         tester,
         equipmentProfile: mockEquipmentProfiles[1],

lib/screens/metering/components/shared/readings_container/components/equipment_profile_picker/widget_picker_equipment_profiles.dart

@@ -1,28 +1,13 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:lightmeter/generated/l10n.dart';
 import 'package:lightmeter/providers/equipment_profile_provider.dart';
-import 'package:lightmeter/screens/metering/communication/bloc_communication_metering.dart';
-import 'package:lightmeter/screens/metering/communication/event_communication_metering.dart';
 import 'package:lightmeter/screens/metering/components/shared/readings_container/components/shared/animated_dialog_picker/widget_picker_dialog_animated.dart';
 import 'package:lightmeter/screens/metering/components/shared/readings_container/components/shared/reading_value_container/widget_container_reading_value.dart';
 import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
 
-class EquipmentProfilePicker extends StatefulWidget {
+class EquipmentProfilePicker extends StatelessWidget {
   const EquipmentProfilePicker();
 
-  @override
-  State<EquipmentProfilePicker> createState() => _EquipmentProfilePickerState();
-}
-
-class _EquipmentProfilePickerState extends State<EquipmentProfilePicker> {
-  @override
-  void didChangeDependencies() {
-    super.didChangeDependencies();
-    final profile = EquipmentProfiles.selectedOf(context);
-    context.read<MeteringCommunicationBloc>().add(EquipmentProfileChangedEvent(profile));
-  }
-
   @override
   Widget build(BuildContext context) {
     return AnimatedDialogPicker<EquipmentProfile>(
@@ -31,10 +16,7 @@ class _EquipmentProfilePickerState extends State<EquipmentProfilePicker> {
       selectedValue: EquipmentProfiles.selectedOf(context),
       values: EquipmentProfiles.inUseOf(context),
       itemTitleBuilder: (_, value) => Text(value.id.isEmpty ? S.of(context).none : value.name),
-      onChanged: (profile) {
-        EquipmentProfilesProvider.of(context).selectProfile(profile);
-        context.read<MeteringCommunicationBloc>().add(EquipmentProfileChangedEvent(profile));
-      },
+      onChanged: EquipmentProfilesProvider.of(context).selectProfile,
       closedChild: ReadingValueContainer.singleValue(
         value: ReadingValue(
           label: S.of(context).equipmentProfile,

lib/screens/metering/screen_metering.dart

@@ -1,5 +1,6 @@
 import 'dart:math';
 
+import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:lightmeter/data/models/ev_source_type.dart';
@@ -9,12 +10,15 @@ import 'package:lightmeter/providers/equipment_profile_provider.dart';
 import 'package:lightmeter/providers/services_provider.dart';
 import 'package:lightmeter/providers/user_preferences_provider.dart';
 import 'package:lightmeter/screens/metering/bloc_metering.dart';
+import 'package:lightmeter/screens/metering/communication/bloc_communication_metering.dart';
+import 'package:lightmeter/screens/metering/communication/event_communication_metering.dart' as communication_event;
 import 'package:lightmeter/screens/metering/components/bottom_controls/widget_bottom_controls.dart';
 import 'package:lightmeter/screens/metering/components/camera_container/provider_container_camera.dart';
 import 'package:lightmeter/screens/metering/components/light_sensor_container/provider_container_light_sensor.dart';
 import 'package:lightmeter/screens/metering/event_metering.dart';
 import 'package:lightmeter/screens/metering/state_metering.dart';
 import 'package:lightmeter/screens/metering/utils/listener_equipment_profiles.dart';
+import 'package:lightmeter/screens/metering/utils/listener_films.dart';
 import 'package:lightmeter/screens/timer/flow_timer.dart';
 import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
 
@@ -91,8 +95,20 @@ class _InheritedListeners extends StatelessWidget {
     return EquipmentProfileListener(
       onDidChangeDependencies: (value) {
         context.read<MeteringBloc>().add(EquipmentProfileChangedEvent(value));
+        context.read<MeteringCommunicationBloc>().add(communication_event.EquipmentProfileChangedEvent(value));
       },
-      child: child,
+      child: FilmListener(
+        onDidChangeDependencies: (value) {
+          /// Do nothing if no film selected
+          if (value != const FilmStub()) {
+            final isoValue = IsoValue.values.firstWhereOrNull((e) => e.rawValue == value.iso);
+            if (isoValue case final isoValue?) {
+              context.read<MeteringBloc>().add(IsoChangedEvent(isoValue));
+            }
+          }
+        },
+        child: child,
+      ),
     );
   }
 }

lib/screens/metering/utils/listener_films.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+import 'package:lightmeter/providers/films_provider.dart';
+import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
+
+class FilmListener extends StatefulWidget {
+  final ValueChanged<Film> onDidChangeDependencies;
+  final Widget child;
+
+  const FilmListener({
+    required this.onDidChangeDependencies,
+    required this.child,
+    super.key,
+  });
+
+  @override
+  State<FilmListener> createState() => _FilmListenerState();
+}
+
+class _FilmListenerState extends State<FilmListener> {
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    widget.onDidChangeDependencies(Films.selectedOf(context));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return widget.child;
+  }
+}