Timeline: update when loading states changed

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/timeline/Timeline.kt

@@ -95,7 +95,7 @@ interface Timeline {
          */
         fun onNewTimelineEvents(eventIds: List<String>)
 
-        fun onStateUpdated() = Unit
+        fun onStateUpdated(direction: Direction, state: PaginationState) = Unit
     }
 
     /**

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/TimelineEventController.kt

@@ -309,6 +309,14 @@ class TimelineEventController @Inject constructor(private val dateFormatter: Vec
         // no-op, already handled
     }
 
+    override fun onStateUpdated(direction: Timeline.Direction, state: Timeline.PaginationState) {
+        if(!state.hasMoreToLoad) {
+            backgroundHandler.post {
+                requestModelBuild()
+            }
+        }
+    }
+
     private fun submitSnapshot(newSnapshot: List<TimelineEvent>) {
         backgroundHandler.post {
             inSubmitList = true