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Refactor room list filtering to use Rust SDK

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ganfra 2026-01-28 15:50:34 +01:00
parent 3824cf4e64
commit 5c3fc13052
33 changed files with 358 additions and 481 deletions
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23
libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/utils/LazyListState.kt
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@ -12,11 +12,17 @@ import androidx.compose.foundation.gestures.Orientation
import androidx.compose.foundation.lazy.LazyListLayoutInfo
import androidx.compose.foundation.lazy.LazyListState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.derivedStateOf
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableIntStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberUpdatedState
import androidx.compose.runtime.setValue
import androidx.compose.runtime.snapshotFlow
import kotlinx.coroutines.flow.collectLatest
import kotlinx.coroutines.flow.distinctUntilChanged
import kotlinx.coroutines.flow.map
/**
* Returns whether the lazy list is currently scrolling up.
@ -73,3 +79,20 @@ suspend fun LazyListState.animateScrollToItemCenter(index: Int) {
animateScrollToItem(index, offset)
}
}
@Composable
fun OnVisibleRangeChangeEffect(lazyListState: LazyListState, onChange: (IntRange) -> Unit) {
val onChangeUpdated by rememberUpdatedState(onChange)
LaunchedEffect(lazyListState) {
snapshotFlow { lazyListState.layoutInfo.visibleItemsInfo }
.map { visibleItemsInfo ->
val firstItemIndex = visibleItemsInfo.firstOrNull()?.index ?: 0
val size = visibleItemsInfo.size
firstItemIndex until firstItemIndex + size
}
.distinctUntilChanged()
.collectLatest { visibleRange ->
onChangeUpdated(visibleRange)
}
}
}