For #2898 - Adds Deselect All in Collection Creation Select Tabs Step

app/src/main/java/org/mozilla/fenix/collections/CollectionCreationComponent.kt

@@ -36,6 +36,7 @@ data class CollectionCreationState(
 sealed class CollectionCreationChange : Change {
     data class TabListChange(val tabs: List<Tab>) : CollectionCreationChange()
     object AddAllTabs : CollectionCreationChange()
+    object RemoveAllTabs : CollectionCreationChange()
     data class TabAdded(val tab: Tab) : CollectionCreationChange()
     data class TabRemoved(val tab: Tab) : CollectionCreationChange()
     data class StepChanged(val saveCollectionStep: SaveCollectionStep) : CollectionCreationChange()
@@ -45,6 +46,7 @@ sealed class CollectionCreationChange : Change {
 sealed class CollectionCreationAction : Action {
     object Close : CollectionCreationAction()
     object SelectAllTapped : CollectionCreationAction()
+    object DeselectAllTapped : CollectionCreationAction()
     object AddNewCollection : CollectionCreationAction()
     data class AddTabToSelection(val tab: Tab) : CollectionCreationAction()
     data class RemoveTabFromSelection(val tab: Tab) : CollectionCreationAction()
@@ -95,6 +97,7 @@ class CollectionCreationViewModel(
             { state, change ->
                 when (change) {
                     is CollectionCreationChange.AddAllTabs -> state.copy(selectedTabs = state.tabs.toSet())
+                    is CollectionCreationChange.RemoveAllTabs -> state.copy(selectedTabs = setOf())
                     is CollectionCreationChange.TabListChange -> state.copy(tabs = change.tabs)
                     is CollectionCreationChange.TabAdded -> {
                         val selectedTabs = state.selectedTabs + setOf(change.tab)

app/src/main/java/org/mozilla/fenix/collections/CollectionCreationUIView.kt

@@ -67,10 +67,6 @@ class CollectionCreationUIView(
             R.layout.component_collection_creation_name_collection
         )
 
-        view.select_all_button.setOnClickListener {
-            actionEmitter.onNext(CollectionCreationAction.SelectAllTapped)
-        }
-
         view.close_icon.apply {
             increaseTapArea(increaseButtonByDps)
             setOnClickListener {
@@ -128,6 +124,19 @@ class CollectionCreationUIView(
                 back_button.setOnClickListener {
                     actionEmitter.onNext(CollectionCreationAction.BackPressed(SaveCollectionStep.SelectTabs))
                 }
+                val allSelected = it.selectedTabs.size == it.tabs.size
+                select_all_button.text =
+                    if (allSelected)
+                        view.context.getString(R.string.create_collection_deselect_all) else
+                        view.context.getString(R.string.create_collection_select_all)
+
+                view.select_all_button.setOnClickListener {
+                    if (allSelected) {
+                        actionEmitter.onNext(CollectionCreationAction.DeselectAllTapped)
+                    } else {
+                        actionEmitter.onNext(CollectionCreationAction.SelectAllTapped)
+                    }
+                }
                 TransitionManager.beginDelayedTransition(
                     view.collection_constraint_layout,
                     transition

app/src/main/java/org/mozilla/fenix/collections/CreateCollectionFragment.kt

@@ -114,6 +114,10 @@ class CreateCollectionFragment : DialogFragment(), CoroutineScope {
                     getManagedEmitter<CollectionCreationChange>()
                         .onNext(CollectionCreationChange.AddAllTabs)
                 }
+                is CollectionCreationAction.DeselectAllTapped -> {
+                    getManagedEmitter<CollectionCreationChange>()
+                        .onNext(CollectionCreationChange.RemoveAllTabs)
+                }
                 is CollectionCreationAction.AddNewCollection -> getManagedEmitter<CollectionCreationChange>().onNext(
                     CollectionCreationChange.StepChanged(SaveCollectionStep.NameCollection)
                 )

app/src/main/res/values/strings.xml

@@ -489,6 +489,8 @@
     <string name="create_collection_add_new_collection">Add new collection</string>
     <!-- Button to select all tabs in the "select tabs" step of the collection creator -->
     <string name="create_collection_select_all">Select All</string>
+    <!-- Button to deselect all tabs in the "select tabs" step of the collection creator -->
+    <string name="create_collection_deselect_all">Deselect All</string>
     <!-- Text to prompt users to select the tabs to save in the "select tabs" step of the collection creator -->
     <string name="create_collection_save_to_collection_empty">Select tabs to save</string>
     <!-- Text to show users how many tabs they have selected in the "select tabs" step of the collection creator.