Timeline: get off main thread when waiting for positionOrReadMarker

This commit is contained in:
ganfra 2021-12-03 12:15:04 +01:00
parent 014da84ba6
commit 7fa4bf182a

View file

@ -184,11 +184,13 @@ import im.vector.app.features.widgets.WidgetActivity
import im.vector.app.features.widgets.WidgetArgs
import im.vector.app.features.widgets.WidgetKind
import im.vector.app.features.widgets.permissions.RoomWidgetPermissionBottomSheet
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.flow.debounce
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.onEach
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import kotlinx.parcelize.Parcelize
import nl.dionsegijn.konfetti.models.Shape
import nl.dionsegijn.konfetti.models.Size
@ -1298,27 +1300,28 @@ class RoomDetailFragment @Inject constructor(
private fun updateJumpToReadMarkerViewVisibility() {
viewLifecycleOwner.lifecycleScope.launchWhenResumed {
withState(roomDetailViewModel) {
val showJumpToUnreadBanner = when (it.unreadState) {
UnreadState.Unknown,
UnreadState.HasNoUnread -> false
is UnreadState.ReadMarkerNotLoaded -> true
is UnreadState.HasUnread -> {
if (it.canShowJumpToReadMarker) {
val lastVisibleItem = layoutManager.findLastCompletelyVisibleItemPosition()
val positionOfReadMarker = timelineEventController.getPositionOfReadMarker()
if (positionOfReadMarker == null) {
false
} else {
positionOfReadMarker > lastVisibleItem
}
} else {
false
val state = roomDetailViewModel.awaitState()
val showJumpToUnreadBanner = when (state.unreadState) {
UnreadState.Unknown,
UnreadState.HasNoUnread -> false
is UnreadState.ReadMarkerNotLoaded -> true
is UnreadState.HasUnread -> {
if (state.canShowJumpToReadMarker) {
val lastVisibleItem = layoutManager.findLastCompletelyVisibleItemPosition()
val positionOfReadMarker = withContext(Dispatchers.Default) {
timelineEventController.getPositionOfReadMarker()
}
if (positionOfReadMarker == null) {
false
} else {
positionOfReadMarker > lastVisibleItem
}
} else {
false
}
}
views.jumpToReadMarkerView.isVisible = showJumpToUnreadBanner
}
views.jumpToReadMarkerView.isVisible = showJumpToUnreadBanner
}
}