add online indicator to room UI

app/src/main/java/com/dfsek/feldspar/ui/rooms/RoomsUI.kt

@@ -9,6 +9,7 @@ import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.Colors
 import androidx.compose.material.Text
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
@@ -18,8 +19,8 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.Shape
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.platform.LocalLifecycleOwner
 import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import coil.compose.AsyncImage
@@ -94,7 +95,19 @@ fun Activity.RoomEntry(room: RoomSummary) {
     }.fillMaxWidth()) {
         val name = remember { room.displayName }
         val lastContent = remember { room.latestPreviewableEvent }
-        Avatar(room.avatarUrl, AppState.Preferences.dmAvatarSize, name = room.displayName)
+        Box {
+            Avatar(room.avatarUrl, AppState.Preferences.dmAvatarSize, name = room.displayName)
+            if (room.isDirect) {
+                val onlineColor = if (room.directUserPresence?.isCurrentlyActive == true) Color.Green else Color.Gray
+                Box(
+                    modifier = Modifier.size((AppState.Preferences.dmAvatarSize * 0.25).dp).clip(CircleShape)
+                        .background(onlineColor).align(Alignment.BottomEnd),
+                    contentAlignment = Alignment.Center
+                ) {
+                }
+            }
+        }
+
 
         Column {
             Text(name, fontSize = 18.sp)