added option to select what to see on landing page

lib/pages/landing_page.dart

@@ -19,11 +19,8 @@ class HomeScreenWidget extends StatefulWidget {
     // TODO: implement createState
     throw UnimplementedError();
   }
-
-
 }
 
-
 class LandingPage extends HomeScreenWidget {
   LandingPage({Key? key}) : super(key: key);
 
@@ -31,10 +28,10 @@ class LandingPage extends HomeScreenWidget {
   State<StatefulWidget> createState() => LandingPageState();
 }
 
-
 class LandingPageState extends State<LandingPage>
     with AfterLayoutMixin<LandingPage> {
   int? defaultList;
+  bool onlyDueDate = true;
   List<Task> _tasks = [];
   PageStatus landingPageStatus = PageStatus.built;
   static const platform = const MethodChannel('vikunja');
@@ -56,6 +53,7 @@ class LandingPageState extends State<LandingPage>
               } catch (e) {
                 log(e.toString());
               }
+              VikunjaGlobal.of(context).settingsManager.getLandingPageOnlyDueDateTasks().then((value) => onlyDueDate = value);
             }));
     super.initState();
   }
@@ -105,10 +103,8 @@ class LandingPageState extends State<LandingPage>
         ]);
         break;
       case PageStatus.empty:
-        body = new Stack(children: [
+        body = new Stack(
-          ListView(),
+            children: [ListView(), Center(child: Text("This view is empty"))]);
-          Center(child: Text("This view is empty"))
-        ]);
         break;
       case PageStatus.success:
         body = ListView(
@@ -121,19 +117,44 @@ class LandingPageState extends State<LandingPage>
         break;
     }
     return new Scaffold(
-        body:
+      body: RefreshIndicator(onRefresh: () => _loadList(context), child: body),
-            RefreshIndicator(onRefresh: () => _loadList(context), child: body),
+      floatingActionButton: Builder(
-        floatingActionButton: Builder(
+          builder: (context) => FloatingActionButton(
-            builder: (context) => FloatingActionButton(
+                onPressed: () {
-                  onPressed: () {
+                  _addItemDialog(context);
-                    _addItemDialog(context);
+                },
-                  },
+                child: const Icon(Icons.add),
-                  child: const Icon(Icons.add),
+              )),
-                )),
       appBar: AppBar(
         title: Text("Vikunja"),
+        actions: [
+          PopupMenuButton(itemBuilder: (BuildContext context) {
+            return [
+              PopupMenuItem(
+                  child:
+                      InkWell(
+                        onTap: () {
+                          Navigator.pop(context);
+                          bool newval = !onlyDueDate;
+                            VikunjaGlobal.of(context).settingsManager.setLandingPageOnlyDueDateTasks(newval).then((value) {
+                              setState(() {
+                                onlyDueDate = newval;
+                                _loadList(context);
+                              });
+                            });
+                        },
+                        child:
+                      Row(mainAxisAlignment: MainAxisAlignment.end, children: [
+                Text("Only show tasks with due date"),
+                Checkbox(
+                    value: onlyDueDate,
+                    onChanged: (bool? value) {  },
+                )
+              ])))
+            ];
+          }),
+        ],
       ),
-
     );
   }
 
@@ -196,27 +217,41 @@ class LandingPageState extends State<LandingPage>
     _tasks = [];
     landingPageStatus = PageStatus.loading;
     // FIXME: loads and reschedules tasks each time list is updated
-    VikunjaGlobal.of(context).notifications.scheduleDueNotifications(VikunjaGlobal.of(context).taskService);
+    VikunjaGlobal.of(context)
+        .notifications
+        .scheduleDueNotifications(VikunjaGlobal.of(context).taskService);
     return VikunjaGlobal.of(context)
-        .taskService
+        .settingsManager
-        .getByOptions(TaskServiceOptions())
+        .getLandingPageOnlyDueDateTasks()
-        .then<Future<void>?>((taskList) {
+        .then((showOnlyDueDateTasks) {
-      if (taskList != null && taskList.isEmpty) {
+      if (!showOnlyDueDateTasks) {
-        setState(() {
+        return VikunjaGlobal.of(context).taskService.getAll().then((value) => _handleTaskList(value));
-          landingPageStatus = PageStatus.empty;
+      } else {
-        });
+        return VikunjaGlobal
-        return null;
+            .of(context)
+            .taskService
+            .getByOptions(TaskServiceOptions())
+            .then<Future<void>?>((taskList) => _handleTaskList(taskList));
       }
-        //taskList.forEach((task) {task.list = lists.firstWhere((element) => element.id == task.list_id);});
-        setState(() {
-          if (taskList != null) {
-            _tasks = taskList;
-            landingPageStatus = PageStatus.success;
-          } else {
-            landingPageStatus = PageStatus.error;
-          }
         });
-        return null;
+  }
+
+  Future<void> _handleTaskList(List<Task>? taskList) {
+    if (taskList != null && taskList.isEmpty) {
+      setState(() {
+        landingPageStatus = PageStatus.empty;
+      });
+      return Future.value();
+    }
+    //taskList.forEach((task) {task.list = lists.firstWhere((element) => element.id == task.list_id);});
+    setState(() {
+      if (taskList != null) {
+        _tasks = taskList;
+        landingPageStatus = PageStatus.success;
+      } else {
+        landingPageStatus = PageStatus.error;
+      }
     });
+    return Future.value();
   }
 }

lib/service/services.dart

@@ -259,6 +259,7 @@ class SettingsManager {
     "workmanager-duration": "0",
     "recent-servers": "[\"https://try.vikunja.io\"]",
     "theme_mode": "system",
+    "landing-page-due-date-tasks": "1"
   };
 
   void applydefaults() {
@@ -283,6 +284,13 @@ class SettingsManager {
     _storage.write(key: "ignore-certificates", value: value ? "1" : "0");
   }
 
+  Future<bool> getLandingPageOnlyDueDateTasks() {
+    return _storage.read(key: "landing-page-due-date-tasks").then((value) => value == "1");
+  }
+  Future<void> setLandingPageOnlyDueDateTasks(bool value) {
+    return _storage.write(key: "landing-page-due-date-tasks", value: value ? "1" : "0");
+  }
+
 
   Future<String?> getVersionNotifications() {
     return _storage.read(key: "get-version-notifications");