Limit usage of nullable callback.

features/roommembermoderation/api/src/main/kotlin/io/element/android/features/roommembermoderation/api/RoomMemberModerationRenderer.kt

@@ -21,14 +21,14 @@ interface RoomMemberModerationRenderer {
      *
      * @param state the state produced by the moderation presenter.
      * @param onSelectAction called when the user picks an action, so the host screen can navigate if that action needs its own screen.
-     * @param onAvatarClick called when the user taps the member's avatar, or `null` to make it non-interactive.
+     * @param onAvatarClick called when the user taps the member's avatar, only if the user has an avatar.
      * @param modifier layout modifier for the container.
      */
     @Composable
     fun Render(
         state: RoomMemberModerationState,
         onSelectAction: (ModerationAction, MatrixUser) -> Unit,
-        onAvatarClick: ((MatrixUser) -> Unit)?,
+        onAvatarClick: (MatrixUser) -> Unit,
         modifier: Modifier,
     )
 }

features/roommembermoderation/impl/src/main/kotlin/io/element/android/features/roommembermoderation/impl/DefaultRoomMemberModerationRenderer.kt

@@ -25,11 +25,16 @@ class DefaultRoomMemberModerationRenderer : RoomMemberModerationRenderer {
     override fun Render(
         state: RoomMemberModerationState,
         onSelectAction: (ModerationAction, MatrixUser) -> Unit,
-        onAvatarClick: ((MatrixUser) -> Unit)?,
+        onAvatarClick: (MatrixUser) -> Unit,
         modifier: Modifier
     ) {
         if (state is InternalRoomMemberModerationState) {
-            RoomMemberModerationView(modifier = modifier, state = state, onSelectAction = onSelectAction, onAvatarClick = onAvatarClick)
+            RoomMemberModerationView(
+                modifier = modifier,
+                state = state,
+                onSelectAction = onSelectAction,
+                onAvatarClick = onAvatarClick,
+            )
         } else {
             SideEffect {
                 Timber.d("RoomMemberModerationRenderer: Render called with unsupported state: $state")

features/roommembermoderation/impl/src/main/kotlin/io/element/android/features/roommembermoderation/impl/RoomMemberModerationView.kt

@@ -66,7 +66,7 @@ import timber.log.Timber
 fun RoomMemberModerationView(
     state: InternalRoomMemberModerationState,
     onSelectAction: (ModerationAction, MatrixUser) -> Unit,
-    onAvatarClick: ((MatrixUser) -> Unit)?,
+    onAvatarClick: (MatrixUser) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     Box(modifier = modifier) {
@@ -218,7 +218,7 @@ private fun RoomMemberActionsBottomSheet(
     user: MatrixUser,
     actions: ImmutableList<ModerationActionState>,
     onSelectAction: (ModerationAction, MatrixUser) -> Unit,
-    onAvatarClick: ((MatrixUser) -> Unit)? = null,
+    onAvatarClick: (MatrixUser) -> Unit,
     onDismiss: () -> Unit,
 ) {
     val coroutineScope = rememberCoroutineScope()
@@ -248,10 +248,10 @@ private fun RoomMemberActionsBottomSheet(
                 modifier = Modifier
                     .padding(bottom = 24.dp)
                     .align(Alignment.CenterHorizontally)
-                    .clickable(enabled = user.avatarUrl != null && onAvatarClick != null) {
+                    .clickable(enabled = user.avatarUrl != null) {
                         coroutineScope.launch {
                             bottomSheetState.hide()
-                            onAvatarClick?.invoke(user)
+                            onAvatarClick(user)
                             onDismiss()
                         }
                     }