Fix a case of missing read markers

Case: bottom-most loaded event has read marker, but there are messages below it
that haven't been loaded yet.
This commit is contained in:
SpiritCroc 2022-03-09 13:40:05 +01:00
parent cbdc28dd9b
commit 8efd389a3c
1 changed files with 5 additions and 0 deletions

View File

@ -1120,6 +1120,11 @@ class TimelineViewModel @AssistedInject constructor(
} else {
UnreadState.Unknown
}
// If the read marker is at the bottom-most event, this doesn't mean we read all, in case we just haven't loaded more events.
// Avoid incorrectly returning HasNoUnread in this case.
if (firstDisplayableEventIndex == 0 && timeline.hasMoreToLoad(Timeline.Direction.FORWARDS)) {
return UnreadState.Unknown
}
for (i in (firstDisplayableEventIndex - 1) downTo 0) {
val timelineEvent = events.getOrNull(i) ?: return UnreadState.Unknown
val eventId = timelineEvent.root.eventId ?: return UnreadState.Unknown