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Add tests and clean code after RoomList Filter rework

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ganfra
2026-01-30 15:03:50 +01:00
parent 5c3fc13052
commit babaa7351f
27 changed files with 325 additions and 161 deletions
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libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/utils/LazyListState.kt
-23
View File
@@ -12,17 +12,11 @@ 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.
@@ -79,20 +73,3 @@ 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)
}
}
}
libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/utils/OnVisibleRangeChangeEffect.kt
+35
View File
@@ -0,0 +1,35 @@
/*
* Copyright (c) 2026 Element Creations Ltd.
*
* SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
* Please see LICENSE files in the repository root for full details.
*/
package io.element.android.libraries.designsystem.utils
import androidx.compose.foundation.lazy.LazyListState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.rememberUpdatedState
import androidx.compose.runtime.snapshotFlow
import kotlinx.coroutines.flow.collectLatest
import kotlinx.coroutines.flow.distinctUntilChanged
import kotlinx.coroutines.flow.map
@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)
}
}
}