Fix issue where custom notifications were never enabled.

Older API levels do not have notification channel support, and
we were not checking this state to see if we should enable
the controls. Fix is to add a new controlsEnabled flag on the
state object and set it whenever we finish loading or when recp
changes.

app/src/main/java/org/thoughtcrime/securesms/components/settings/conversation/sounds/custom/CustomNotificationsSettingsFragment.kt

@@ -65,8 +65,6 @@ class CustomNotificationsSettingsFragment : DSLSettingsFragment(R.string.CustomN
   private fun getConfiguration(state: CustomNotificationsSettingsState): DSLConfiguration {
     return configure {
 
-      val controlsEnabled = state.hasCustomNotifications && state.isInitialLoadComplete
-
       sectionHeaderPref(R.string.CustomNotificationsDialogFragment__messages)
 
       if (NotificationChannels.supported()) {
@@ -81,21 +79,21 @@ class CustomNotificationsSettingsFragment : DSLSettingsFragment(R.string.CustomN
       clickPref(
         title = DSLSettingsText.from(R.string.CustomNotificationsDialogFragment__notification_sound),
         summary = DSLSettingsText.from(getRingtoneSummary(requireContext(), state.messageSound, Settings.System.DEFAULT_NOTIFICATION_URI)),
-        isEnabled = controlsEnabled,
+        isEnabled = state.controlsEnabled,
         onClick = { requestSound(state.messageSound, false) }
       )
 
       if (NotificationChannels.supported()) {
         switchPref(
           title = DSLSettingsText.from(R.string.CustomNotificationsDialogFragment__vibrate),
-          isEnabled = controlsEnabled,
+          isEnabled = state.controlsEnabled,
           isChecked = state.messageVibrateEnabled,
           onClick = { viewModel.setMessageVibrate(RecipientDatabase.VibrateState.fromBoolean(!state.messageVibrateEnabled)) }
         )
       } else {
         radioListPref(
           title = DSLSettingsText.from(R.string.CustomNotificationsDialogFragment__vibrate),
-          isEnabled = controlsEnabled,
+          isEnabled = state.controlsEnabled,
           listItems = vibrateLabels,
           selected = state.messageVibrateState.id,
           onSelected = {
@@ -112,13 +110,13 @@ class CustomNotificationsSettingsFragment : DSLSettingsFragment(R.string.CustomN
         clickPref(
           title = DSLSettingsText.from(R.string.CustomNotificationsDialogFragment__ringtone),
           summary = DSLSettingsText.from(getRingtoneSummary(requireContext(), state.callSound, Settings.System.DEFAULT_RINGTONE_URI)),
-          isEnabled = controlsEnabled,
+          isEnabled = state.controlsEnabled,
           onClick = { requestSound(state.callSound, true) }
         )
 
         radioListPref(
           title = DSLSettingsText.from(R.string.CustomNotificationsDialogFragment__vibrate),
-          isEnabled = controlsEnabled,
+          isEnabled = state.controlsEnabled,
           listItems = vibrateLabels,
           selected = state.callVibrateState.id,
           onSelected = {

app/src/main/java/org/thoughtcrime/securesms/components/settings/conversation/sounds/custom/CustomNotificationsSettingsState.kt

@@ -6,6 +6,7 @@ import org.thoughtcrime.securesms.database.RecipientDatabase
 data class CustomNotificationsSettingsState(
   val isInitialLoadComplete: Boolean = false,
   val hasCustomNotifications: Boolean = false,
+  val controlsEnabled: Boolean = false,
   val messageVibrateState: RecipientDatabase.VibrateState = RecipientDatabase.VibrateState.DEFAULT,
   val messageVibrateEnabled: Boolean = false,
   val messageSound: Uri? = null,

app/src/main/java/org/thoughtcrime/securesms/components/settings/conversation/sounds/custom/CustomNotificationsSettingsViewModel.kt

@@ -22,12 +22,19 @@ class CustomNotificationsSettingsViewModel(
 
   init {
     repository.initialize(recipientId) {
-      store.update { it.copy(isInitialLoadComplete = true) }
+      store.update {
+        it.copy(
+          isInitialLoadComplete = true,
+          controlsEnabled = (!NotificationChannels.supported() || it.hasCustomNotifications)
+        )
+      }
     }
 
     store.update(Recipient.live(recipientId).liveData) { recipient, state ->
+      val recipientHasCustomNotifications = NotificationChannels.supported() && recipient.notificationChannel != null
       state.copy(
-        hasCustomNotifications = NotificationChannels.supported() && recipient.notificationChannel != null,
+        hasCustomNotifications = recipientHasCustomNotifications,
+        controlsEnabled = (!NotificationChannels.supported() || recipientHasCustomNotifications) && state.isInitialLoadComplete,
         messageSound = recipient.messageRingtone,
         messageVibrateState = recipient.messageVibrate,
         messageVibrateEnabled = when (recipient.messageVibrate) {