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Room list : debounce subscribe to visible rooms.

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This commit is contained in:
ganfra 2024-09-18 21:07:39 +02:00
parent 2d313089e1
commit b364cee500
2 changed files with 7 additions and 7 deletions
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8
features/roomlist/impl/src/main/kotlin/io/element/android/features/roomlist/impl/RoomListPresenter.kt
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@ -61,7 +61,7 @@ import kotlinx.collections.immutable.toPersistentList
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.Job
import kotlinx.coroutines.SupervisorJob
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.flow.distinctUntilChanged
import kotlinx.coroutines.flow.first
@ -73,6 +73,7 @@ import kotlinx.coroutines.launch
import javax.inject.Inject
private const val EXTENDED_RANGE_SIZE = 40
private const val SUBSCRIBE_TO_VISIBLE_ROOMS_DEBOUNCE_IN_MILLIS = 300L
class RoomListPresenter @Inject constructor(
private val client: MatrixClient,
@ -301,7 +302,10 @@ class RoomListPresenter @Inject constructor(
private var currentUpdateVisibleRangeJob: Job? = null
private fun CoroutineScope.updateVisibleRange(range: IntRange) {
currentUpdateVisibleRangeJob?.cancel()
currentUpdateVisibleRangeJob = launch(SupervisorJob()) {
currentUpdateVisibleRangeJob = launch {
// Debounce the subscription to avoid subscribing to too many rooms
delay(SUBSCRIBE_TO_VISIBLE_ROOMS_DEBOUNCE_IN_MILLIS)
if (range.isEmpty()) return@launch
val currentRoomList = roomListDataSource.allRooms.first()
// Use extended range to 'prefetch' the next rooms info