wangjia
330 lines
11 KiB
Dart
330 lines
11 KiB
Dart
import 'dart:async';
|
||
|
||
import '../core/utils/dialog_util.dart';
|
||
import 'package:flutter/material.dart';
|
||
import '../core/responsive/responsive.dart';
|
||
import 'package:lpinyin/lpinyin.dart';
|
||
import '../core/theme/context_tokens.dart';
|
||
|
||
class OptionItem {
|
||
final int id;
|
||
final String name;
|
||
final String? code;
|
||
// 拼音索引，构造时预计算
|
||
late final String _fullPinyin;
|
||
late final String _initials;
|
||
|
||
OptionItem({required this.id, required this.name, this.code}) {
|
||
_fullPinyin = PinyinHelper.getPinyinE(name, separator: '', defPinyin: '')
|
||
.toLowerCase();
|
||
_initials = PinyinHelper.getShortPinyin(name).toLowerCase();
|
||
}
|
||
|
||
bool matches(String kw) {
|
||
final k = kw.toLowerCase();
|
||
return name.toLowerCase().contains(k) ||
|
||
(_fullPinyin.isNotEmpty && _fullPinyin.contains(k)) ||
|
||
(_initials.isNotEmpty && _initials.contains(k)) ||
|
||
(code?.toLowerCase().contains(k) ?? false);
|
||
}
|
||
}
|
||
|
||
/// 点击后弹出搜索对话框的下拉选择框
|
||
class SearchableOptionField extends StatelessWidget {
|
||
final List<OptionItem> options;
|
||
final int? selectedId;
|
||
final String hint;
|
||
final String dialogTitle;
|
||
final ValueChanged<int?> onChanged;
|
||
final bool isRequired;
|
||
final bool isDense;
|
||
|
||
/// 可选：搜索无匹配时「新增到基础数据」。回调收到当前关键字（用户可在确认框里改），
|
||
/// 创建成功返回新选项 id（自动选中），失败/取消返回 null。为空则不显示新增入口。
|
||
final Future<int?> Function(String keyword)? onCreate;
|
||
|
||
/// 可选：服务端搜索。提供时搜索框输入会 debounce 调它取结果（替代本地过滤）。
|
||
final Future<List<OptionItem>> Function(String keyword)? onSearch;
|
||
|
||
const SearchableOptionField({
|
||
super.key,
|
||
required this.options,
|
||
required this.selectedId,
|
||
required this.hint,
|
||
required this.dialogTitle,
|
||
required this.onChanged,
|
||
this.isRequired = false,
|
||
this.isDense = true,
|
||
this.onCreate,
|
||
this.onSearch,
|
||
});
|
||
|
||
String get _displayText {
|
||
if (selectedId == null) return '';
|
||
return options.where((o) => o.id == selectedId).firstOrNull?.name ?? '';
|
||
}
|
||
|
||
Future<void> _openDialog(BuildContext context) async {
|
||
final result = await showDialog<int?>(
|
||
context: context,
|
||
builder: (_) => _SearchDialog(
|
||
title: dialogTitle,
|
||
options: options,
|
||
selectedId: selectedId,
|
||
onCreate: onCreate,
|
||
onSearch: onSearch,
|
||
),
|
||
);
|
||
// result == -1 means "clear selection"
|
||
if (result == -1) {
|
||
onChanged(null);
|
||
} else if (result != null) {
|
||
onChanged(result);
|
||
}
|
||
}
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final selected = selectedId != null;
|
||
return FormField<int>(
|
||
initialValue: selectedId,
|
||
validator: isRequired ? (v) => (selectedId == null ? '请选择' : null) : null,
|
||
builder: (state) {
|
||
return InkWell(
|
||
onTap: () => _openDialog(context),
|
||
borderRadius: BorderRadius.circular(4),
|
||
child: InputDecorator(
|
||
decoration: InputDecoration(
|
||
isDense: isDense,
|
||
errorText: state.errorText,
|
||
suffixIcon: selected
|
||
? GestureDetector(
|
||
onTap: () => onChanged(null),
|
||
child: Icon(Icons.close,
|
||
size: 14, color: context.tokens.muted),
|
||
)
|
||
: Icon(Icons.arrow_drop_down,
|
||
size: 16, color: context.tokens.muted),
|
||
),
|
||
isEmpty: !selected,
|
||
child: Text(
|
||
selected ? _displayText : hint,
|
||
style: TextStyle(
|
||
fontSize: 12,
|
||
color: selected ? Colors.black87 : context.tokens.muted,
|
||
),
|
||
overflow: TextOverflow.ellipsis,
|
||
),
|
||
),
|
||
);
|
||
},
|
||
);
|
||
}
|
||
}
|
||
|
||
class _SearchDialog extends StatefulWidget {
|
||
final String title;
|
||
final List<OptionItem> options;
|
||
final int? selectedId;
|
||
final Future<int?> Function(String keyword)? onCreate;
|
||
final Future<List<OptionItem>> Function(String keyword)? onSearch;
|
||
const _SearchDialog({
|
||
required this.title,
|
||
required this.options,
|
||
this.selectedId,
|
||
this.onCreate,
|
||
this.onSearch,
|
||
});
|
||
|
||
@override
|
||
State<_SearchDialog> createState() => _SearchDialogState();
|
||
}
|
||
|
||
class _SearchDialogState extends State<_SearchDialog> {
|
||
final _ctrl = TextEditingController();
|
||
String _keyword = '';
|
||
bool _creating = false;
|
||
List<OptionItem>? _serverItems; // 服务端搜索结果（null=尚未搜索，用 widget.options）
|
||
bool _searching = false;
|
||
Timer? _debounce;
|
||
|
||
void _onSearchChanged(String v) {
|
||
setState(() => _keyword = v);
|
||
if (widget.onSearch == null) return;
|
||
_debounce?.cancel();
|
||
_debounce = Timer(const Duration(milliseconds: 300), () async {
|
||
setState(() => _searching = true);
|
||
try {
|
||
final res = await widget.onSearch!(v.trim());
|
||
if (mounted) setState(() => _serverItems = res);
|
||
} finally {
|
||
if (mounted) setState(() => _searching = false);
|
||
}
|
||
});
|
||
}
|
||
|
||
@override
|
||
void dispose() {
|
||
_debounce?.cancel();
|
||
_ctrl.dispose();
|
||
super.dispose();
|
||
}
|
||
|
||
/// 「新增到基础数据」流程：确认（名称可改）→ onCreate → 成功则带新 id 关闭搜索框。
|
||
Future<void> _createFlow() async {
|
||
final kw = _keyword.trim();
|
||
if (widget.onCreate == null || kw.isEmpty) return;
|
||
final nameCtrl = TextEditingController(text: kw);
|
||
final confirmed = await showAppDialog<bool>(
|
||
context: context,
|
||
builder: (_) => AlertDialog(
|
||
title: const Text('新增到基础数据', style: TextStyle(fontSize: 16)),
|
||
content: SizedBox(
|
||
width: context.dialogWidth(320),
|
||
child: TextField(
|
||
controller: nameCtrl,
|
||
autofocus: true,
|
||
decoration: const InputDecoration(labelText: '名称', isDense: true),
|
||
),
|
||
),
|
||
actions: [
|
||
TextButton(
|
||
onPressed: () => Navigator.of(context).pop(false),
|
||
child: const Text('取消'),
|
||
),
|
||
TextButton(
|
||
onPressed: () => Navigator.of(context).pop(true),
|
||
child: const Text('确认新增'),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
if (confirmed != true) return;
|
||
final name = nameCtrl.text.trim();
|
||
if (name.isEmpty) return;
|
||
setState(() => _creating = true);
|
||
try {
|
||
final newId = await widget.onCreate!(name);
|
||
if (!mounted) return;
|
||
if (newId != null) {
|
||
Navigator.of(context).pop(newId); // 回填并自动选中
|
||
} else {
|
||
setState(() => _creating = false);
|
||
ScaffoldMessenger.of(context).showSnackBar(
|
||
const SnackBar(content: Text('新增失败，请重试')),
|
||
);
|
||
}
|
||
} catch (e) {
|
||
if (!mounted) return;
|
||
setState(() => _creating = false);
|
||
ScaffoldMessenger.of(context).showSnackBar(
|
||
SnackBar(content: Text('新增失败：$e')),
|
||
);
|
||
}
|
||
}
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final filtered = widget.onSearch != null
|
||
? (_serverItems ?? widget.options)
|
||
: (_keyword.isEmpty
|
||
? widget.options
|
||
: widget.options.where((o) => o.matches(_keyword)).toList());
|
||
final kw = _keyword.trim();
|
||
final hasExact =
|
||
filtered.any((o) => o.name.toLowerCase() == kw.toLowerCase());
|
||
final canCreate = widget.onCreate != null && kw.isNotEmpty && !hasExact;
|
||
|
||
return AlertDialog(
|
||
title: Text(widget.title, style: const TextStyle(fontSize: 16)),
|
||
contentPadding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
|
||
content: SizedBox(
|
||
width: context.dialogWidth(300),
|
||
height: 400,
|
||
child: Column(
|
||
children: [
|
||
TextField(
|
||
controller: _ctrl,
|
||
autofocus: true,
|
||
decoration: InputDecoration(
|
||
hintText: '搜索...',
|
||
prefixIcon: const Icon(Icons.search, size: 18),
|
||
suffixIcon: _searching
|
||
? const Padding(
|
||
padding: EdgeInsets.all(10),
|
||
child: SizedBox(
|
||
width: 16,
|
||
height: 16,
|
||
child: CircularProgressIndicator(strokeWidth: 2),
|
||
),
|
||
)
|
||
: null,
|
||
isDense: true,
|
||
),
|
||
onChanged: _onSearchChanged,
|
||
),
|
||
const SizedBox(height: 8),
|
||
Expanded(
|
||
child: filtered.isEmpty
|
||
? Center(
|
||
child: Text(
|
||
canCreate ? '无匹配结果，可新增到基础数据' : '无匹配结果',
|
||
style: TextStyle(color: context.tokens.muted),
|
||
),
|
||
)
|
||
: ListView.builder(
|
||
itemCount: filtered.length,
|
||
itemBuilder: (_, i) {
|
||
final opt = filtered[i];
|
||
final isSelected = opt.id == widget.selectedId;
|
||
return ListTile(
|
||
dense: true,
|
||
title: Text(opt.name,
|
||
style: const TextStyle(fontSize: 13)),
|
||
subtitle: opt.code != null && opt.code!.isNotEmpty
|
||
? Text(opt.code!,
|
||
style: const TextStyle(fontSize: 11))
|
||
: null,
|
||
selected: isSelected,
|
||
selectedTileColor:
|
||
context.tokens.primary.withValues(alpha: 0.08),
|
||
onTap: () => Navigator.of(context).pop(opt.id),
|
||
);
|
||
},
|
||
),
|
||
),
|
||
if (canCreate)
|
||
Align(
|
||
alignment: Alignment.centerLeft,
|
||
child: TextButton.icon(
|
||
onPressed: _creating ? null : _createFlow,
|
||
icon: _creating
|
||
? const SizedBox(
|
||
width: 14,
|
||
height: 14,
|
||
child: CircularProgressIndicator(strokeWidth: 2),
|
||
)
|
||
: const Icon(Icons.add, size: 16),
|
||
label: Text('新增「$kw」到基础数据',
|
||
style: const TextStyle(fontSize: 12)),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
actions: [
|
||
if (widget.selectedId != null)
|
||
TextButton(
|
||
onPressed: () => Navigator.of(context).pop(-1),
|
||
child: Text('清除选择',
|
||
style: TextStyle(color: context.tokens.muted)),
|
||
),
|
||
TextButton(
|
||
onPressed: () => Navigator.of(context).pop(null),
|
||
child: const Text('取消'),
|
||
),
|
||
],
|
||
);
|
||
}
|
||
}
|