#13 and #17 form for creating, editing and deleting tasks

app/src/main/java/be/ugent/sel/studeez/data/SelectedSubject.kt

@@ -5,7 +5,7 @@ import javax.inject.Inject
 import javax.inject.Singleton
 
 /**
- * Used to communicate the selected subject from the subject overview to the task overview of that subject.
+ * Used to communicate the selected subject from the subject overview other screens.
  * Because this is a singleton-class the view-models of both screens observe the same data.
  */
 @Singleton
@@ -15,4 +15,6 @@ class SelectedSubject @Inject constructor() {
     fun set(subject: Subject) {
         this.subject = subject
     }
+
+    fun isSet() = this::subject.isInitialized
 }

app/src/main/java/be/ugent/sel/studeez/data/SelectedTask.kt

@@ -0,0 +1,21 @@
+package be.ugent.sel.studeez.data
+
+import be.ugent.sel.studeez.data.local.models.task.Task
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Used to communicate the selected task from the task overview other screens.
+ * Because this is a singleton-class the view-models of both screens observe the same data.
+ */
+@Singleton
+class SelectedTask @Inject constructor() {
+    private lateinit var task: Task
+
+    operator fun invoke() = task
+    fun set(task: Task) {
+        this.task = task
+    }
+
+    fun isSet() = this::task.isInitialized
+}