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Alternative way to create multifunctional widget #1

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Alternative way to create multifunctional widget #1

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37 changes: 16 additions & 21 deletions lib/ui/shared/options_picker.dart
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Original file line number Diff line number Diff line change
@@ -1,38 +1,33 @@
import 'package:flutter/material.dart';
import '../../api/api.dart';

class SingleOptionPicker<T extends SelectableOption> extends StatelessWidget {
const SingleOptionPicker(
{Key? key, required this.options, required this.setSingleOption})
: super(key: key);

final Map<T, int> options;
final Function(T) setSingleOption;

@override
Widget build(BuildContext context) {
return OptionsPicker<T>(
options: options,
setOption: (Set<T> options) => setSingleOption(options.first),
allowsMultiple: false,
);
}
}
import '../../api/api.dart';

class OptionsPicker<T extends SelectableOption> extends StatefulWidget {
const OptionsPicker(
{required this.options,
required this.setOption,
required this.onSelected,
this.allowsMultiple = false,
Key? key})
: super(key: key);

final Map<T, int> options;
final Function(Set<T>) setOption;
final Function(Set<T>) onSelected;
final bool allowsMultiple;

@override
_OptionsPickerState<T> createState() => _OptionsPickerState<T>();

factory OptionsPicker.single({
Key? key,
required Map<T, int> options,
required Function(T) onSelected,
}) =>
OptionsPicker<T>(
key: key,
options: options,
onSelected: (Set<T> options) => onSelected(options.first),
allowsMultiple: false,
);
}

class _OptionsPickerState<T extends SelectableOption>
Expand Down Expand Up @@ -102,7 +97,7 @@ class _OptionsPickerState<T extends SelectableOption>
_selectedOptionsNames.add(optionsList[index]);
}

widget.setOption(_selectedOptionsNames);
widget.onSelected(_selectedOptionsNames);
});
},
);
Expand Down
20 changes: 10 additions & 10 deletions lib/ui/shop/product.dart
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Original file line number Diff line number Diff line change
@@ -1,16 +1,16 @@
import 'dart:math';

import 'package:carousel_slider/carousel_slider.dart';
import 'package:dash_fanclub_app/ui/shared/whitespace.dart';
import 'package:flutter/material.dart';
import 'package:get_it/get_it.dart';
import 'package:google_fonts/google_fonts.dart';
import '../../api/shop_inventory.dart';
import '../../api/bag_item.dart';
import 'package:carousel_slider/carousel_slider.dart';
import 'package:google_fonts/google_fonts.dart';

import '../../api/api.dart';
import '../../api/bag.dart';
import 'package:get_it/get_it.dart';
import '../../api/bag_item.dart';
import '../../api/shop_inventory.dart';
import '../shared/shared.dart';
import '../../api/api.dart';

GetIt getIt = GetIt.instance;

Expand Down Expand Up @@ -108,24 +108,24 @@ class _ProductPageState extends State<ProductPage> {
),
const SizedBox(height: 15),
Center(
child: SingleOptionPicker<ProductSize>(
child: OptionsPicker<ProductSize>.single(
options: widget.product.sizes.map<ProductSize, int>(
(String name, int quantity) =>
MapEntry<ProductSize, int>(
ProductSize(name), quantity)),
setSingleOption: setSize,
onSelected: setSize,
),
),
const SizedBox(height: 15),
Center(
child: SingleOptionPicker<ProductColor>(
child: OptionsPicker<ProductColor>.single(
options: const {
ProductColor(name: "DashBlue", color: Colors.blue): 5,
ProductColor(name: "Black", color: Colors.black): 9,
ProductColor(name: "Pink", color: Colors.pink): 10,
ProductColor(name: "Orange", color: Colors.orange): 4,
},
setSingleOption: setColor,
onSelected: setColor,
),
),
const SizedBox(height: 15),
Expand Down