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Ensure proper double linking of TimelineChunks

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We need both directions so getOffsetIndex() produces correct results in
all cases.
This commit is contained in:
SpiritCroc 2022-03-17 11:02:32 +01:00
parent d1a77d2eca
commit 91259bef40
2 changed files with 13 additions and 4 deletions
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1
changelog.d/5564.bugfix Normal file
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@ -0,0 +1 @@
Fix sometimes read marker not properly updating

16
matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/TimelineChunk.kt
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@ -83,11 +83,15 @@ internal class TimelineChunk(private val chunkEntity: ChunkEntity,
isLastBackward.set(chunkEntity.isLastBackward)
}
if (changeSet.isFieldChanged(ChunkEntityFields.NEXT_CHUNK.`$`)) {
nextChunk = createTimelineChunk(chunkEntity.nextChunk)
nextChunk = createTimelineChunk(chunkEntity.nextChunk).also {
it?.prevChunk = this
}
nextChunkLatch?.complete(Unit)
}
if (changeSet.isFieldChanged(ChunkEntityFields.PREV_CHUNK.`$`)) {
prevChunk = createTimelineChunk(chunkEntity.prevChunk)
prevChunk = createTimelineChunk(chunkEntity.prevChunk).also {
it?.nextChunk = this
}
prevChunkLatch?.complete(Unit)
}
}
@ -194,7 +198,9 @@ internal class TimelineChunk(private val chunkEntity: ChunkEntity,
when {
nextChunkEntity != null -> {
if (nextChunk == null) {
nextChunk = createTimelineChunk(nextChunkEntity)
nextChunk = createTimelineChunk(nextChunkEntity).also {
it?.prevChunk = this
}
}
nextChunk?.loadMore(offsetCount, direction, fetchFromServerIfNeeded) ?: LoadMoreResult.FAILURE
}
@ -210,7 +216,9 @@ internal class TimelineChunk(private val chunkEntity: ChunkEntity,
when {
prevChunkEntity != null -> {
if (prevChunk == null) {
prevChunk = createTimelineChunk(prevChunkEntity)
prevChunk = createTimelineChunk(prevChunkEntity).also {
it?.nextChunk = this
}
}
prevChunk?.loadMore(offsetCount, direction, fetchFromServerIfNeeded) ?: LoadMoreResult.FAILURE
}