🎨 Use feature based folder structure
This commit is contained in:
895
lib/polls/polls_widgets/poll/poll_submit.dart
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895
lib/polls/polls_widgets/poll/poll_submit.dart
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:island/creators/creators/poll/poll_list.dart';
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import 'package:island/polls/polls_widgets/poll/poll_stats_widget.dart';
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import 'package:island/posts/posts_models/poll.dart';
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import 'package:island/core/network.dart';
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import 'package:island/shared/widgets/alert.dart';
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class PollSubmit extends ConsumerStatefulWidget {
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const PollSubmit({
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super.key,
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required this.pollId,
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required this.onSubmit,
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this.initialAnswers,
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this.onCancel,
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this.showProgress = true,
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this.isReadonly = false,
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this.isInitiallyExpanded = false,
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});
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final String pollId;
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/// Callback when user submits all answers. Map questionId -> answer.
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final void Function(Map<String, dynamic> answers) onSubmit;
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/// Optional initial answers, keyed by questionId.
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final Map<String, dynamic>? initialAnswers;
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/// Optional cancel callback.
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final VoidCallback? onCancel;
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/// Whether to show a progress indicator (e.g., "2 / N").
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final bool showProgress;
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final bool isReadonly;
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/// Whether the poll should start expanded instead of collapsed.
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final bool isInitiallyExpanded;
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@override
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ConsumerState<PollSubmit> createState() => _PollSubmitState();
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}
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class _PollSubmitState extends ConsumerState<PollSubmit> {
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List<SnPollQuestion>? _questions;
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int _index = 0;
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bool _submitting = false;
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bool _isModifying = false; // New state to track if user is modifying answers
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bool _isCollapsed = true; // New state to track collapse/expand
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/// Collected answers, keyed by questionId
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late Map<String, dynamic> _answers;
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/// Local controller for free text input
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final TextEditingController _textController = TextEditingController();
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/// Local state holders for inputs to avoid rebuilding whole list
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String? _singleChoiceSelected; // optionId
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final Set<String> _multiChoiceSelected = {};
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bool? _yesNoSelected;
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int? _ratingSelected; // 1..5
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/// Flag to track if user has edited the current question to prevent provider rebuilds from resetting state
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bool _userHasEdited = false;
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/// Listener for text controller to mark as edited when user types
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late final VoidCallback _controllerListener;
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@override
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void initState() {
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super.initState();
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_controllerListener = () {
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_userHasEdited = true;
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};
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_textController.addListener(_controllerListener);
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_answers = Map<String, dynamic>.from(widget.initialAnswers ?? {});
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// Set initial collapse state based on the parameter
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_isCollapsed = !widget.isInitiallyExpanded;
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if (!widget.isReadonly) {
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// If initial answers are provided, set _isModifying to false initially
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// so the "Modify" button is shown.
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if (widget.initialAnswers != null && widget.initialAnswers!.isNotEmpty) {
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_isModifying = false;
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}
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}
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// Load initial answers into local state
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if (_questions != null) {
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_loadCurrentIntoLocalState();
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_userHasEdited = false;
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}
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}
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void _initializeFromPollData(SnPollWithStats poll) {
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// Initialize answers from poll data if available
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if (poll.userAnswer != null && poll.userAnswer!.answer.isNotEmpty) {
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_answers = Map<String, dynamic>.from(poll.userAnswer!.answer);
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if (!widget.isReadonly && !_isModifying) {
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_isModifying = false; // Show modify button if user has answered
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}
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}
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_loadCurrentIntoLocalState();
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}
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@override
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void didUpdateWidget(covariant PollSubmit oldWidget) {
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super.didUpdateWidget(oldWidget);
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if (oldWidget.pollId != widget.pollId) {
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_index = 0;
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_answers = Map<String, dynamic>.from(widget.initialAnswers ?? {});
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// Reset modification state when poll changes
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_isModifying = false;
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}
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}
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@override
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void dispose() {
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_textController.removeListener(_controllerListener);
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_textController.dispose();
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super.dispose();
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}
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SnPollQuestion get _current => _questions![_index];
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void _loadCurrentIntoLocalState() {
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final q = _current;
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final saved = _answers[q.id];
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if (!_userHasEdited) {
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_singleChoiceSelected = null;
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_multiChoiceSelected.clear();
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_yesNoSelected = null;
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_ratingSelected = null;
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switch (q.type) {
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case SnPollQuestionType.singleChoice:
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if (saved is String) _singleChoiceSelected = saved;
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break;
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case SnPollQuestionType.multipleChoice:
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if (saved is List) {
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_multiChoiceSelected.addAll(saved.whereType<String>());
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}
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break;
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case SnPollQuestionType.yesNo:
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if (saved is bool) _yesNoSelected = saved;
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break;
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case SnPollQuestionType.rating:
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if (saved is int) _ratingSelected = saved;
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break;
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case SnPollQuestionType.freeText:
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if (saved is String) {
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_textController.removeListener(_controllerListener);
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_textController.text = saved;
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_textController.addListener(_controllerListener);
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}
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break;
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}
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}
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}
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bool _isCurrentAnswered() {
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final q = _current;
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if (!q.isRequired) return true;
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switch (q.type) {
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case SnPollQuestionType.singleChoice:
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return _singleChoiceSelected != null;
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case SnPollQuestionType.multipleChoice:
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return _multiChoiceSelected.isNotEmpty;
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case SnPollQuestionType.yesNo:
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return _yesNoSelected != null;
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case SnPollQuestionType.rating:
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return (_ratingSelected ?? 0) > 0;
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case SnPollQuestionType.freeText:
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return _textController.text.trim().isNotEmpty;
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}
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}
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void _persistCurrentAnswer() {
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final q = _current;
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switch (q.type) {
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case SnPollQuestionType.singleChoice:
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if (_singleChoiceSelected == null) {
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_answers.remove(q.id);
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} else {
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_answers[q.id] = _singleChoiceSelected!;
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}
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break;
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case SnPollQuestionType.multipleChoice:
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if (_multiChoiceSelected.isEmpty) {
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_answers.remove(q.id);
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} else {
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_answers[q.id] = _multiChoiceSelected.toList(growable: false);
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}
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break;
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case SnPollQuestionType.yesNo:
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if (_yesNoSelected == null) {
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_answers.remove(q.id);
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} else {
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_answers[q.id] = _yesNoSelected!;
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}
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break;
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case SnPollQuestionType.rating:
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if (_ratingSelected == null) {
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_answers.remove(q.id);
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} else {
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_answers[q.id] = _ratingSelected!;
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}
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break;
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case SnPollQuestionType.freeText:
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final text = _textController.text.trim();
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if (text.isEmpty) {
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_answers.remove(q.id);
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} else {
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_answers[q.id] = text;
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}
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break;
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}
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}
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Future<void> _submitToServer(SnPollWithStats poll) async {
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// Persist current question before final submit
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_persistCurrentAnswer();
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setState(() {
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_submitting = true;
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});
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try {
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final dio = ref.read(apiClientProvider);
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await dio.post(
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'/sphere/polls/${poll.id}/answer',
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data: {'answer': _answers},
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);
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// Refresh poll data to show submitted answer
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ref.invalidate(pollWithStatsProvider(widget.pollId));
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// Only call onSubmit after server accepts
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widget.onSubmit(Map<String, dynamic>.unmodifiable(_answers));
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showSnackBar('pollAnswerSubmitted'.tr());
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HapticFeedback.heavyImpact();
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} catch (e) {
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showErrorAlert(e);
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} finally {
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if (mounted) {
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setState(() {
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_submitting = false;
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});
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}
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}
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}
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void _next(SnPollWithStats poll) {
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if (_submitting) return;
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_persistCurrentAnswer();
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if (_index < _questions!.length - 1) {
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setState(() {
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_index++;
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_userHasEdited = false;
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_loadCurrentIntoLocalState();
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});
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} else {
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// Final submit to API
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_submitToServer(poll);
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}
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}
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void _back() {
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if (_submitting) return;
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_persistCurrentAnswer();
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if (_index > 0) {
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setState(() {
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_index--;
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_userHasEdited = false;
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_loadCurrentIntoLocalState();
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});
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} else {
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// at the first question; allow cancel if provided
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widget.onCancel?.call();
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}
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}
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Widget _buildHeader(BuildContext context, SnPollWithStats poll) {
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final q = _current;
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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if (widget.showProgress &&
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_isModifying) // Only show progress when modifying
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Text(
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'${_index + 1} / ${_questions!.length}',
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style: Theme.of(context).textTheme.labelMedium,
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),
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Row(
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children: [
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Expanded(
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child: Text(
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q.title,
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style: Theme.of(context).textTheme.titleMedium,
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),
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),
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if (q.isRequired)
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Padding(
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padding: const EdgeInsets.only(left: 8),
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child: Text(
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'*',
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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color: Theme.of(context).colorScheme.error,
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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 (q.description != null)
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Padding(
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padding: const EdgeInsets.only(top: 4),
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child: Text(
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q.description!,
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: Theme.of(
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context,
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).textTheme.bodySmall?.color?.withOpacity(0.7),
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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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Widget _buildStats(
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BuildContext context,
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SnPollQuestion q,
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Map<String, dynamic>? stats,
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) {
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return PollStatsWidget(question: q, stats: stats);
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}
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Widget _buildBody(BuildContext context, SnPollWithStats poll) {
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final hasUserAnswer =
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poll.userAnswer != null && poll.userAnswer!.answer.isNotEmpty;
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if (hasUserAnswer && !widget.isReadonly && !_isModifying) {
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return const SizedBox.shrink(); // Collapse input fields if already submitted and not modifying
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}
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final q = _current;
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switch (q.type) {
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case SnPollQuestionType.singleChoice:
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return _buildSingleChoice(context, q);
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case SnPollQuestionType.multipleChoice:
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return _buildMultipleChoice(context, q);
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case SnPollQuestionType.yesNo:
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return _buildYesNo(context, q);
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case SnPollQuestionType.rating:
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return _buildRating(context, q);
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case SnPollQuestionType.freeText:
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return _buildFreeText(context, q);
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}
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}
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Widget _buildSingleChoice(BuildContext context, SnPollQuestion q) {
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final options = [...?q.options]..sort((a, b) => a.order.compareTo(b.order));
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return Column(
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children: [
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for (final opt in options)
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RadioListTile<String>(
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value: opt.id,
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groupValue: _singleChoiceSelected,
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onChanged: (val) => setState(() {
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_singleChoiceSelected = val;
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_userHasEdited = true;
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}),
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title: Text(opt.label),
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subtitle: opt.description != null ? Text(opt.description!) : null,
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),
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],
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);
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}
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Widget _buildMultipleChoice(BuildContext context, SnPollQuestion q) {
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final options = [...?q.options]..sort((a, b) => a.order.compareTo(b.order));
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return Column(
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children: [
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for (final opt in options)
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CheckboxListTile(
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value: _multiChoiceSelected.contains(opt.id),
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onChanged: (val) {
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setState(() {
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if (val == true) {
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_multiChoiceSelected.add(opt.id);
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} else {
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_multiChoiceSelected.remove(opt.id);
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}
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_userHasEdited = true;
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});
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},
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title: Text(opt.label),
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subtitle: opt.description != null ? Text(opt.description!) : null,
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),
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],
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);
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}
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Widget _buildYesNo(BuildContext context, SnPollQuestion q) {
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return Row(
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children: [
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Expanded(
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child: SegmentedButton<bool>(
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segments: [
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ButtonSegment(value: true, label: Text('yes'.tr())),
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ButtonSegment(value: false, label: Text('no'.tr())),
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],
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selected: _yesNoSelected == null ? {} : {_yesNoSelected!},
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onSelectionChanged: (sel) {
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setState(() {
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_yesNoSelected = sel.isEmpty ? null : sel.first;
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_userHasEdited = true;
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});
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},
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multiSelectionEnabled: false,
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emptySelectionAllowed: true,
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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 _buildRating(BuildContext context, SnPollQuestion q) {
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const max = 5;
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return Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: List.generate(max, (i) {
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final value = i + 1;
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final selected = (_ratingSelected ?? 0) >= value;
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return IconButton(
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icon: Icon(
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selected ? Icons.star : Icons.star_border,
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color: selected ? Colors.amber : null,
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),
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onPressed: () {
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setState(() {
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_ratingSelected = value;
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_userHasEdited = true;
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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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Widget _buildFreeText(BuildContext context, SnPollQuestion q) {
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return TextField(
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controller: _textController,
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maxLines: 6,
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decoration: const InputDecoration(
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border: OutlineInputBorder(
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borderRadius: BorderRadius.all(Radius.circular(12)),
|
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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 _buildNavBar(BuildContext context, SnPollWithStats poll) {
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final isLast = _index == _questions!.length - 1;
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final canProceed = _isCurrentAnswered() && !_submitting;
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final hasUserAnswer =
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poll.userAnswer != null && poll.userAnswer!.answer.isNotEmpty;
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if (hasUserAnswer && !_isModifying && !widget.isReadonly) {
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// If poll is submitted and not in modification mode, show "Modify" button
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return FilledButton.icon(
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icon: const Icon(Icons.edit),
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label: Text('modifyAnswers'.tr()),
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||||
onPressed: () {
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||||
setState(() {
|
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_isModifying = true;
|
||||
_index = 0; // Reset to first question for modification
|
||||
_userHasEdited = false;
|
||||
_loadCurrentIntoLocalState();
|
||||
});
|
||||
},
|
||||
);
|
||||
}
|
||||
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||||
return Row(
|
||||
children: [
|
||||
OutlinedButton.icon(
|
||||
icon: const Icon(Icons.arrow_back),
|
||||
label: Text(_index == 0 ? 'cancel'.tr() : 'back'.tr()),
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||||
onPressed: _submitting
|
||||
? null
|
||||
: () {
|
||||
if (_index == 0 && _isModifying) {
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||||
// If at first question and in modification mode, go back to submitted view
|
||||
setState(() {
|
||||
_isModifying = false;
|
||||
});
|
||||
} else {
|
||||
_back();
|
||||
}
|
||||
},
|
||||
),
|
||||
const Spacer(),
|
||||
FilledButton.icon(
|
||||
icon: _submitting
|
||||
? const SizedBox(
|
||||
width: 16,
|
||||
height: 16,
|
||||
child: CircularProgressIndicator(strokeWidth: 2),
|
||||
)
|
||||
: Icon(isLast ? Icons.check : Icons.arrow_forward),
|
||||
label: Text(isLast ? 'submit'.tr() : 'next'.tr()),
|
||||
onPressed: canProceed ? () => _next(poll) : null,
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
Widget _buildSubmittedView(BuildContext context, SnPollWithStats poll) {
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
for (final q in _questions!)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(bottom: 16.0),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
Row(
|
||||
children: [
|
||||
Expanded(
|
||||
child: Text(
|
||||
q.title,
|
||||
style: Theme.of(context).textTheme.titleMedium,
|
||||
),
|
||||
),
|
||||
if (q.isRequired)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(left: 8),
|
||||
child: Text(
|
||||
'*',
|
||||
style: Theme.of(context).textTheme.titleMedium
|
||||
?.copyWith(
|
||||
color: Theme.of(context).colorScheme.error,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
if (q.description != null)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(top: 4),
|
||||
child: Text(
|
||||
q.description!,
|
||||
style: Theme.of(context).textTheme.bodySmall?.copyWith(
|
||||
color: Theme.of(
|
||||
context,
|
||||
).textTheme.bodySmall?.color?.withOpacity(0.7),
|
||||
),
|
||||
),
|
||||
),
|
||||
_buildStats(context, q, poll.stats),
|
||||
],
|
||||
),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
Widget _buildReadonlyView(BuildContext context, SnPollWithStats poll) {
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
if (poll.title != null || poll.description != null)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(bottom: 12),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
if (poll.title != null)
|
||||
Text(
|
||||
poll.title!,
|
||||
style: Theme.of(context).textTheme.titleLarge,
|
||||
),
|
||||
if (poll.description != null)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(top: 4),
|
||||
child: Text(
|
||||
poll.description!,
|
||||
style: Theme.of(context).textTheme.bodyMedium?.copyWith(
|
||||
color: Theme.of(
|
||||
context,
|
||||
).textTheme.bodyMedium?.color?.withOpacity(0.7),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
for (final q in _questions!)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(bottom: 16.0),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
Row(
|
||||
children: [
|
||||
Expanded(
|
||||
child: Text(
|
||||
q.title,
|
||||
style: Theme.of(context).textTheme.titleMedium,
|
||||
),
|
||||
),
|
||||
if (q.isRequired)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(left: 8),
|
||||
child: Text(
|
||||
'*',
|
||||
style: Theme.of(context).textTheme.titleMedium
|
||||
?.copyWith(
|
||||
color: Theme.of(context).colorScheme.error,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
if (q.description != null)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(top: 4),
|
||||
child: Text(
|
||||
q.description!,
|
||||
style: Theme.of(context).textTheme.bodySmall?.copyWith(
|
||||
color: Theme.of(
|
||||
context,
|
||||
).textTheme.bodySmall?.color?.withOpacity(0.7),
|
||||
),
|
||||
),
|
||||
),
|
||||
_buildStats(context, q, poll.stats),
|
||||
],
|
||||
),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
Widget _buildCollapsedView(BuildContext context, SnPollWithStats poll) {
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
Row(
|
||||
children: [
|
||||
Expanded(
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
if (poll.title != null)
|
||||
Text(
|
||||
poll.title!,
|
||||
style: Theme.of(context).textTheme.titleMedium?.copyWith(
|
||||
fontWeight: FontWeight.w600,
|
||||
),
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
if (poll.description != null)
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(top: 2),
|
||||
child: Text(
|
||||
poll.description!,
|
||||
style: Theme.of(context).textTheme.bodySmall?.copyWith(
|
||||
color: Theme.of(
|
||||
context,
|
||||
).textTheme.bodySmall?.color?.withOpacity(0.7),
|
||||
),
|
||||
maxLines: 2,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
)
|
||||
else
|
||||
Padding(
|
||||
padding: const EdgeInsets.only(top: 2),
|
||||
child: Text(
|
||||
'${_questions!.length} question${_questions!.length == 1 ? '' : 's'}',
|
||||
style: Theme.of(context).textTheme.bodySmall?.copyWith(
|
||||
color: Theme.of(
|
||||
context,
|
||||
).textTheme.bodySmall?.color?.withOpacity(0.7),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
IconButton(
|
||||
icon: Icon(
|
||||
_isCollapsed ? Icons.expand_more : Icons.expand_less,
|
||||
size: 20,
|
||||
),
|
||||
onPressed: () {
|
||||
setState(() {
|
||||
_isCollapsed = !_isCollapsed;
|
||||
});
|
||||
},
|
||||
visualDensity: VisualDensity.compact,
|
||||
tooltip: _isCollapsed ? 'expandPoll'.tr() : 'collapsePoll'.tr(),
|
||||
),
|
||||
],
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final pollAsync = ref.watch(pollWithStatsProvider(widget.pollId));
|
||||
|
||||
return pollAsync.when(
|
||||
loading: () => const Center(
|
||||
child: Padding(
|
||||
padding: EdgeInsets.all(16.0),
|
||||
child: CircularProgressIndicator(),
|
||||
),
|
||||
),
|
||||
error: (error, stack) => Center(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(16.0),
|
||||
child: Text('Failed to load poll: $error'),
|
||||
),
|
||||
),
|
||||
data: (poll) {
|
||||
// Initialize questions when data is available
|
||||
_questions = [...poll.questions]
|
||||
..sort((a, b) => a.order.compareTo(b.order));
|
||||
|
||||
// Initialize answers from poll data
|
||||
_initializeFromPollData(poll);
|
||||
|
||||
if (_questions!.isEmpty) {
|
||||
return const SizedBox.shrink();
|
||||
}
|
||||
|
||||
// If collapsed, show collapsed view for all states
|
||||
if (_isCollapsed) {
|
||||
return _buildCollapsedView(context, poll);
|
||||
}
|
||||
|
||||
// If poll is already submitted and not in readonly mode, and not in modification mode, show submitted view
|
||||
final hasUserAnswer =
|
||||
poll.userAnswer != null && poll.userAnswer!.answer.isNotEmpty;
|
||||
if (hasUserAnswer && !widget.isReadonly && !_isModifying) {
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
_buildCollapsedView(context, poll),
|
||||
const SizedBox(height: 8),
|
||||
AnimatedSwitcher(
|
||||
duration: const Duration(milliseconds: 300),
|
||||
transitionBuilder: (child, anim) {
|
||||
final offset =
|
||||
Tween<Offset>(
|
||||
begin: const Offset(0, -0.1),
|
||||
end: Offset.zero,
|
||||
).animate(
|
||||
CurvedAnimation(parent: anim, curve: Curves.easeOut),
|
||||
);
|
||||
final fade = CurvedAnimation(
|
||||
parent: anim,
|
||||
curve: Curves.easeOut,
|
||||
);
|
||||
return FadeTransition(
|
||||
opacity: fade,
|
||||
child: SlideTransition(position: offset, child: child),
|
||||
);
|
||||
},
|
||||
child: Column(
|
||||
key: const ValueKey('submitted_expanded'),
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
_buildSubmittedView(context, poll),
|
||||
_buildNavBar(context, poll),
|
||||
],
|
||||
),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
// If poll is in readonly mode, show readonly view
|
||||
if (widget.isReadonly) {
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
_buildCollapsedView(context, poll),
|
||||
const SizedBox(height: 8),
|
||||
AnimatedSwitcher(
|
||||
duration: const Duration(milliseconds: 300),
|
||||
transitionBuilder: (child, anim) {
|
||||
final offset =
|
||||
Tween<Offset>(
|
||||
begin: const Offset(0, -0.1),
|
||||
end: Offset.zero,
|
||||
).animate(
|
||||
CurvedAnimation(parent: anim, curve: Curves.easeOut),
|
||||
);
|
||||
final fade = CurvedAnimation(
|
||||
parent: anim,
|
||||
curve: Curves.easeOut,
|
||||
);
|
||||
return FadeTransition(
|
||||
opacity: fade,
|
||||
child: SlideTransition(position: offset, child: child),
|
||||
);
|
||||
},
|
||||
child: _buildReadonlyView(context, poll),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
|
||||
return Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
_buildCollapsedView(context, poll),
|
||||
const SizedBox(height: 8),
|
||||
AnimatedSwitcher(
|
||||
duration: const Duration(milliseconds: 300),
|
||||
transitionBuilder: (child, anim) {
|
||||
final offset = Tween<Offset>(
|
||||
begin: const Offset(0, -0.1),
|
||||
end: Offset.zero,
|
||||
).animate(CurvedAnimation(parent: anim, curve: Curves.easeOut));
|
||||
final fade = CurvedAnimation(
|
||||
parent: anim,
|
||||
curve: Curves.easeOut,
|
||||
);
|
||||
return FadeTransition(
|
||||
opacity: fade,
|
||||
child: SlideTransition(position: offset, child: child),
|
||||
);
|
||||
},
|
||||
child: Column(
|
||||
key: const ValueKey('normal_expanded'),
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
_buildHeader(context, poll),
|
||||
const SizedBox(height: 12),
|
||||
_AnimatedStep(
|
||||
key: ValueKey(_current.id),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
_buildBody(context, poll),
|
||||
_buildStats(context, _current, poll.stats),
|
||||
],
|
||||
),
|
||||
),
|
||||
const SizedBox(height: 16),
|
||||
_buildNavBar(context, poll),
|
||||
],
|
||||
),
|
||||
),
|
||||
],
|
||||
);
|
||||
},
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/// Simple fade/slide transition between questions.
|
||||
class _AnimatedStep extends StatelessWidget {
|
||||
const _AnimatedStep({super.key, required this.child});
|
||||
final Widget child;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return AnimatedSwitcher(
|
||||
duration: const Duration(milliseconds: 250),
|
||||
transitionBuilder: (child, anim) {
|
||||
final offset = Tween<Offset>(
|
||||
begin: const Offset(0.1, 0),
|
||||
end: Offset.zero,
|
||||
).animate(anim);
|
||||
final fade = CurvedAnimation(parent: anim, curve: Curves.easeInOut);
|
||||
return FadeTransition(
|
||||
opacity: fade,
|
||||
child: SlideTransition(position: offset, child: child),
|
||||
);
|
||||
},
|
||||
child: child,
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user