85 lines
2.6 KiB
Dart
85 lines
2.6 KiB
Dart
import 'package:flutter/material.dart';
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import '../../../domain/school_identity.dart';
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import '../../../domain/school_term.dart';
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import '../../../domain/undergraduate_exam_query.dart';
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Future<UndergraduateExamQuery?> showUndergraduateExamQueryPicker(
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BuildContext context, {
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UndergraduateExamQuery? initial,
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required DateTime now,
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}) => showDialog<UndergraduateExamQuery>(
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context: context,
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builder: (_) => _ExamPicker(initial: initial, now: now),
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);
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class _ExamPicker extends StatefulWidget {
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const _ExamPicker({this.initial, required this.now});
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final UndergraduateExamQuery? initial;
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final DateTime now;
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@override
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State<_ExamPicker> createState() => _ExamPickerState();
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}
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class _ExamPickerState extends State<_ExamPicker> {
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late SchoolTerm _term =
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widget.initial?.term ??
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SchoolTerm(523, school: SupportedSchool.uestcUndergraduate);
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late final Set<UndergraduateExamType> _types = {
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...?widget.initial?.types,
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if (widget.initial == null) UndergraduateExamType.finalExam,
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};
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@override
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Widget build(BuildContext context) => AlertDialog(
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title: const Text('本科考试查询'),
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content: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text('选择一个学期和需要查询的考试类型'),
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const SizedBox(height: 14),
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DropdownButton<SchoolTerm>(
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isExpanded: true,
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value: _term,
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items: SchoolTerm.undergraduateChoices(widget.now, saved: _term)
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.map((t) => DropdownMenuItem(value: t, child: Text(t.label)))
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.toList(),
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onChanged: (t) {
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if (t != null) setState(() => _term = t);
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},
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),
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for (final type in UndergraduateExamType.values)
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CheckboxListTile(
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contentPadding: EdgeInsets.zero,
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title: Text(type.label),
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value: _types.contains(type),
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onChanged: (v) => setState(() {
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if (v == true) {
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_types.add(type);
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} else {
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_types.remove(type);
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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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actions: [
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TextButton(
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onPressed: () => Navigator.pop(context),
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child: const Text('取消'),
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),
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FilledButton(
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onPressed: _types.isEmpty
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? null
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: () => Navigator.pop(
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context,
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UndergraduateExamQuery(term: _term, types: _types),
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),
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child: const Text('开始查询'),
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),
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],
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);
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}
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