Add posts with surveys support

2025-11-04 12:14:11 +00:00 · 2019-06-28 11:32:36 +02:00
parent 66b4d19004
commit fdf8cd08ef
9 changed files with 314 additions and 39 deletions
--- a/lib/ui/widgets/survey_widget.dart
+++ b/lib/ui/widgets/survey_widget.dart
@@ -0,0 +1,121 @@
+import 'package:comunic/helpers/survey_helper.dart';
+import 'package:comunic/models/survey.dart';
+import 'package:comunic/models/survey_choice.dart';
+import 'package:comunic/utils/intl_utils.dart';
+import 'package:comunic/utils/ui_utils.dart';
+import 'package:flutter/material.dart';
+import 'package:pie_chart/pie_chart.dart';
+
+/// Survey widget
+///
+/// @author Pierre HUBERT
+
+class SurveyWidget extends StatefulWidget {
+  final Survey survey;
+
+  const SurveyWidget({Key key, @required this.survey})
+      : assert(survey != null),
+        super(key: key);
+
+  @override
+  _SurveyWidgetState createState() => _SurveyWidgetState();
+}
+
+class _SurveyWidgetState extends State<SurveyWidget> {
+  final SurveyHelper _helper = SurveyHelper();
+
+  Survey get survey => widget.survey;
+
+  Map<String, double> _buildDataMap() {
+    Map<String, double> data = Map();
+    widget.survey.choices.forEach((e) => data.putIfAbsent(
+        e.name + " (" + e.responses.toString() + ")", () => 1.0 * e.responses));
+    return data;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: <Widget>[
+        Text(
+          widget.survey.question,
+          style: TextStyle(fontWeight: FontWeight.bold),
+        ),
+        _buildUserResponse(),
+        PieChart(
+          dataMap: _buildDataMap(),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildUserResponse() {
+    if (survey.hasResponded) return _buildUserRespondedWidget();
+    return _buildUserResponseFormWidget();
+  }
+
+  Widget _buildUserRespondedWidget() {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: <Widget>[
+        Flexible(
+          child: Text(
+            tr("Your response: %response%",
+                args: {"response": survey.userResponse.name}),
+            textAlign: TextAlign.center,
+          ),
+        ),
+        MaterialButton(
+          child: Text(tr("Cancel").toUpperCase()),
+          onPressed: _cancelUserResponse,
+        )
+      ],
+    );
+  }
+
+  Future<void> _cancelUserResponse() async {
+    if (!await showConfirmDialog(
+      context: context,
+      title: tr("Cancel response to survey"),
+      message:
+          tr("Do you really want to cancel your response to this survey ?"),
+    )) return;
+
+    if (!await _helper.cancelResponse(survey)) {
+      showSimpleSnack(
+          context, tr("Could not cancel your response to the survey !"));
+      return;
+    }
+
+    setState(() {
+      survey.cancelUserResponse();
+    });
+  }
+
+  Widget _buildUserResponseFormWidget() {
+    return DropdownButton<SurveyChoice>(
+      hint: Text(tr("Respond to survey")),
+      items: survey.choices
+          .map(
+            (f) => DropdownMenuItem<SurveyChoice>(
+                  value: f,
+                  child: Text(f.name),
+                ),
+          )
+          .toList(),
+      onChanged: _respondToSurvey,
+    );
+  }
+
+  /// Respond to survey
+  Future<void> _respondToSurvey(SurveyChoice choice) async {
+    // Send the response to the server
+    if (!await _helper.respondToSurvey(survey: survey, choice: choice))
+      return showSimpleSnack(
+          context, tr("Could not send your response to the survey!"));
+
+    setState(() {
+      survey.setUserResponse(choice);
+    });
+  }
+}