107 lines
3.2 KiB
Dart
107 lines
3.2 KiB
Dart
// Author: fruit.com.cn
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import 'package:flutter/material.dart';
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import '../../core/theme/app_colors.dart';
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import '../../core/theme/app_dimens.dart';
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import '../../l10n/app_localizations.dart';
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import 'account_deactivate_logic.dart';
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/// 注销原因：固定选项在标题下换行排列，补充说明留在输入框内。
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class DeactivateReasonField extends StatelessWidget {
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const DeactivateReasonField({
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super.key,
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required this.controller,
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required this.onChanged,
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});
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final TextEditingController controller;
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final VoidCallback onChanged;
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context)!;
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final options = _options(l10n);
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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l10n.accountDeactivateReason,
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style: const TextStyle(
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color: AppColors.textPrimary,
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fontSize: AppDimens.listTitle,
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: AppDimens.spaceSm),
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Wrap(
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spacing: AppDimens.spaceSm,
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runSpacing: AppDimens.spaceSm,
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children: [
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for (var index = 0; index < options.length; index++)
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_chip(options[index], index, options),
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],
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),
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const SizedBox(height: AppDimens.spaceMd),
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TextField(
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key: const Key('account-deactivate-reason'),
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controller: controller,
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maxLength: AccountDeactivateLogic.maxReasonLength,
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minLines: 3,
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maxLines: 4,
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textAlignVertical: TextAlignVertical.top,
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onChanged: (_) => onChanged(),
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decoration: InputDecoration(
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hintText: l10n.accountDeactivateReasonHint,
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floatingLabelBehavior: FloatingLabelBehavior.never,
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alignLabelWithHint: true,
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contentPadding: const EdgeInsets.all(AppDimens.cardPadding),
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),
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),
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],
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);
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}
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Widget _chip(_ReasonOption option, int index, List<_ReasonOption> options) {
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final selected = option.custom
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? _customSelected(options)
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: controller.text == option.label;
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return ChoiceChip(
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key: Key('account-deactivate-reason-$index'),
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label: Text(option.label),
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selected: selected,
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onSelected: (_) => _select(option),
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);
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}
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bool _customSelected(List<_ReasonOption> options) {
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final text = controller.text.trim();
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if (text.isEmpty) return false;
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return options
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.where((item) => !item.custom)
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.every((item) => item.label != text);
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}
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void _select(_ReasonOption option) {
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controller.text = option.custom ? '' : option.label;
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controller.selection = TextSelection.collapsed(
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offset: controller.text.length,
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);
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onChanged();
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}
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List<_ReasonOption> _options(AppLocalizations l10n) => [
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_ReasonOption(l10n.accountDeactivateReasonUnused),
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_ReasonOption(l10n.accountDeactivateReasonContent),
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_ReasonOption(l10n.accountDeactivateReasonPrivacy),
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_ReasonOption(l10n.accountDeactivateReasonOther, custom: true),
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];
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}
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class _ReasonOption {
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const _ReasonOption(this.label, {this.custom = false});
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final String label;
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final bool custom;
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}
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