144 lines
4.5 KiB
Dart
144 lines
4.5 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_settings_ui/flutter_settings_ui.dart';
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import 'package:pweb/generated/i18n/app_localizations.dart';
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import 'package:pweb/utils/error/snackbar.dart';
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enum _EditState { view, edit, saving }
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/// Базовый класс, управляющий состояниями (view/edit/saving),
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/// показом snackbar ошибок и успешного сохранения.
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abstract class BaseEditTile<T> extends AbstractSettingsTile {
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const BaseEditTile({
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super.key,
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required this.icon,
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required this.title,
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required this.valueGetter,
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required this.valueSetter,
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required this.errorSituation,
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});
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final IconData icon;
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final String title;
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final ValueGetter<T?> valueGetter;
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final Future<void> Function(T) valueSetter;
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final String errorSituation;
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/// Рисует в режиме просмотра (read-only).
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Widget buildView(BuildContext context, T? value);
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/// Рисует UI редактора.
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/// Если [useDialogEditor]==true, его обернут в диалог.
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Widget buildEditor(
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BuildContext context,
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T? initial,
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void Function(T) onSave,
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VoidCallback onCancel,
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bool isSaving,
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);
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/// true → показывать редактор в диалоге, false → inline под заголовком.
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bool get useDialogEditor => false;
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@override
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Widget build(BuildContext context) => _BaseEditTileBody<T>(delegate: this);
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}
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class _BaseEditTileBody<T> extends StatefulWidget {
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const _BaseEditTileBody({required this.delegate});
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final BaseEditTile<T> delegate;
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@override
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State<_BaseEditTileBody<T>> createState() => _BaseEditTileBodyState<T>();
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}
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class _BaseEditTileBodyState<T> extends State<_BaseEditTileBody<T>> {
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_EditState _state = _EditState.view;
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bool get _isSaving => _state == _EditState.saving;
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Future<void> _performSave(T newValue) async {
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final current = widget.delegate.valueGetter();
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if (newValue == current) {
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setState(() => _state = _EditState.view);
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return;
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}
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setState(() => _state = _EditState.saving);
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final sms = ScaffoldMessenger.of(context);
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final locs = AppLocalizations.of(context)!;
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try {
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await widget.delegate.valueSetter(newValue);
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sms.showSnackBar(SnackBar(
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content: Text(locs.settingsSuccessfullyUpdated),
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duration: const Duration(milliseconds: 1200),
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));
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} catch (e) {
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notifyUserOfErrorX(
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scaffoldMessenger: sms,
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errorSituation: widget.delegate.errorSituation,
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appLocalizations: locs,
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exception: e,
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);
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} finally {
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if (mounted) setState(() => _state = _EditState.view);
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}
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}
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Future<void> _openDialogEditor() async {
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final initial = widget.delegate.valueGetter();
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final T? result = await showDialog<T>(
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context: context,
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barrierDismissible: true,
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builder: (ctx) {
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return Dialog(
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insetPadding: const EdgeInsets.symmetric(horizontal: 24, vertical: 24),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(28)),
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: widget.delegate.buildEditor(
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ctx,
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initial,
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(v) => Navigator.of(ctx).pop(v),
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() => Navigator.of(ctx).pop(),
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_isSaving,
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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 (result != null) await _performSave(result);
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}
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@override
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Widget build(BuildContext context) {
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final delegate = widget.delegate;
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final current = delegate.valueGetter();
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// Диалоговый режим
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if (delegate.useDialogEditor) {
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return SettingsTile.navigation(
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leading: Icon(delegate.icon),
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title: Text(delegate.title),
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value: delegate.buildView(context, current),
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onPressed: (_) => _openDialogEditor(),
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);
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}
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// Inline-режим (под заголовком будет редактор прямо в tile)
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return SettingsTile.navigation(
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leading: Icon(delegate.icon),
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title: Text(delegate.title),
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value: _state == _EditState.view
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? delegate.buildView(context, current)
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: delegate.buildEditor(
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context,
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current,
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_performSave,
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() => setState(() => _state = _EditState.view),
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_isSaving,
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),
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onPressed: (_) {
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if (_state == _EditState.view) setState(() => _state = _EditState.edit);
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},
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);
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}
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}
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