122 lines
3.4 KiB
Dart
122 lines
3.4 KiB
Dart
import 'package:flutter/material.dart';
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class CommonPopupMenuItem<T> {
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T action;
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String label;
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IconData? iconData;
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CommonPopupMenuItem({
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required this.action,
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required this.label,
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this.iconData,
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});
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}
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class CommonPopupMenu<T> extends StatefulWidget {
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final List<CommonPopupMenuItem> items;
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final PopupMenuItemSelected<T> onSelected;
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final T? selectedValue;
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final Widget? icon;
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const CommonPopupMenu({
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super.key,
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required this.items,
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required this.onSelected,
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this.icon,
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}) : selectedValue = null;
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const CommonPopupMenu.radio({
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super.key,
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required this.items,
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required this.onSelected,
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required T this.selectedValue,
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this.icon,
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});
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@override
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State<CommonPopupMenu<T>> createState() => _CommonPopupMenuState();
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}
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class _CommonPopupMenuState<T> extends State<CommonPopupMenu<T>> {
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late ValueNotifier<T?> groupValue;
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@override
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void initState() {
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super.initState();
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groupValue = ValueNotifier(widget.selectedValue);
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}
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handleSelect(T value) {
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if (widget.selectedValue != null) {
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this.groupValue.value = value;
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}
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widget.onSelected(value);
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}
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@override
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Widget build(BuildContext context) {
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return PopupMenuButton<T>(
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icon: widget.icon,
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onSelected: handleSelect,
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itemBuilder: (_) {
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return [
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for (final item in widget.items)
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PopupMenuItem<T>(
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value: item.action,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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mainAxisSize: MainAxisSize.min,
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children: [
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Expanded(
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child: Row(
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mainAxisAlignment: MainAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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item.iconData != null
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? Flexible(
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child: Container(
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margin: const EdgeInsets.only(right: 16),
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child: Icon(item.iconData),
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),
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)
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: Container(),
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Flexible(
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flex: 0,
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child: SizedBox(
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child: Text(
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item.label,
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maxLines: 1,
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),
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),
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),
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],
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),
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),
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if (widget.selectedValue != null)
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Flexible(
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flex: 0,
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child: ValueListenableBuilder<T?>(
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valueListenable: groupValue,
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builder: (_, groupValue, __) {
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return Radio<T>(
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value: item.action,
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groupValue: groupValue,
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onChanged: (T? value) {
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if (value != null) {
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handleSelect(value);
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Navigator.of(context).pop();
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}
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},
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);
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},
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),
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),
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],
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),
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),
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];
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},
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);
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}
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}
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