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Timeline : use the new LiveBackPaginationStatus api

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This commit is contained in:
ganfra 2024-06-07 11:22:04 +02:00
parent ab0a9c38c9
commit d64b7ff472
2 changed files with 32 additions and 0 deletions
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16
libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/timeline/RoomTimelineExtensions.kt
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@ -25,11 +25,27 @@ import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.buffer
import kotlinx.coroutines.flow.callbackFlow
import kotlinx.coroutines.flow.catch
import org.matrix.rustcomponents.sdk.PaginationStatusListener
import org.matrix.rustcomponents.sdk.Timeline
import org.matrix.rustcomponents.sdk.TimelineDiff
import org.matrix.rustcomponents.sdk.TimelineItem
import org.matrix.rustcomponents.sdk.TimelineListener
import timber.log.Timber
import uniffi.matrix_sdk_ui.LiveBackPaginationStatus
internal fun Timeline.liveBackPaginationStatus(): Flow<LiveBackPaginationStatus> = callbackFlow {
val listener = object : PaginationStatusListener {
override fun onUpdate(status: LiveBackPaginationStatus) {
trySend(status)
}
}
val result = subscribeToBackPaginationStatus(listener)
awaitClose {
result.cancelAndDestroy()
}
}.catch {
Timber.d(it, "liveBackPaginationStatus() failed")
}.buffer(Channel.UNLIMITED)
internal fun Timeline.timelineDiffFlow(onInitialList: suspend (List<TimelineItem>) -> Unit): Flow<List<TimelineDiff>> =
callbackFlow {

16
libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/timeline/RustTimeline.kt
View file

@ -79,6 +79,7 @@ import org.matrix.rustcomponents.sdk.messageEventContentFromMarkdown
import org.matrix.rustcomponents.sdk.use
import timber.log.Timber
import uniffi.matrix_sdk_ui.EventItemOrigin
import uniffi.matrix_sdk_ui.LiveBackPaginationStatus
import java.io.File
import java.util.Date
import java.util.concurrent.atomic.AtomicBoolean
@ -154,6 +155,21 @@ class RustTimeline(
launch {
fetchMembers()
}
if (isLive) {
// When timeline is live, we need to listen to the back pagination status as
// sdk can automatically paginate backwards.
inner.liveBackPaginationStatus()
.onEach { backPaginationStatus ->
updatePaginationStatus(Timeline.PaginationDirection.BACKWARDS) {
when (backPaginationStatus) {
is LiveBackPaginationStatus.Idle -> it.copy(isPaginating = false, hasMoreToLoad = !backPaginationStatus.hitStartOfTimeline)
is LiveBackPaginationStatus.Paginating -> it.copy(isPaginating = true, hasMoreToLoad = true)
}
}
}
.launchIn(this)
}
}
}