add "on unit selection" toggle visibility of "unit selection window" related items

Author: hunnihundert

app/src/main/java/app/nexd/android/ui/common/helprequest/HelpRequestCreateArticleBinder.kt

@@ -19,7 +19,8 @@ import mva2.extension.DBItemBinder
 
 internal typealias ArticleViewModelBinder = DBItemBinder<ArticleViewModel, RowNewHelpRequestArticleBinding>
 
-class HelpRequestCreateArticleBinder(private val lifecycleOwner: LifecycleOwner) : ArticleViewModelBinder() {
+class HelpRequestCreateArticleBinder(private val lifecycleOwner: LifecycleOwner) :
+    ArticleViewModelBinder() {
 
     data class ArticleViewModel(
         val article: MutableLiveData<Article?>,
@@ -85,10 +86,14 @@ class HelpRequestCreateArticleBinder(private val lifecycleOwner: LifecycleOwner)
         val adapter = binding.recyclerviewNewArticleUnits.adapter as MultiViewAdapter
 
         adapter.removeAllSections()
+
         adapter.registerItemBinders(
             UnitViewBinder(
                 lifecycleOwner,
-                viewModel.selectedUnit))
+                viewModel.selectedUnit,
+                viewModel::toggleUnitsVisibility
+            )
+        )
 
         with(ListSection<Unit>()) {
             adapter.addSection(this)

app/src/main/java/app/nexd/android/ui/common/helprequest/UnitViewBinder.kt

@@ -7,10 +7,12 @@ import androidx.lifecycle.MutableLiveData
 import app.nexd.android.api.model.Unit
 import app.nexd.android.databinding.ViewChipArticleUnitBinding
 import mva2.extension.DBItemBinder
+import kotlin.reflect.KFunction0
 
 class UnitViewBinder(
     private val lifecycleOwner: LifecycleOwner,
-    private val selectedUnit: MutableLiveData<Unit>
+    private val selectedUnit: MutableLiveData<Unit>,
+    private val toggleVisibilityFunction: KFunction0<kotlin.Unit>
 ) : DBItemBinder<Unit, ViewChipArticleUnitBinding>() {
 
     override fun canBindData(item: Any?): Boolean {
@@ -30,6 +32,7 @@ class UnitViewBinder(
 
         binding.root.setOnClickListener {
             selectedUnit.value = unit
+            toggleVisibilityFunction()
         }
 
         binding.articleUnitName.isSelected = true