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add itemSelectionFlow

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InsanusMokrassar 2020-12-14 19:45:14 +06:00
parent 80bc226ee1
commit 6f9d5e2d5f
1 changed files with 17 additions and 0 deletions
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selector/common/src/commonMain/kotlin/dev/inmo/micro_utils/selector/SelectorItemsFlow.kt Normal file
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package dev.inmo.micro_utils.selector
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.*
/**
* @return Returned [SharedFlow] will emit true when [element] has been selected in [this] [Selector] and will emit
* false when this [element] was deselected
*
* @see [Selector]
* @see [Selector.itemSelected]
* @see [Selector.itemUnselected]
*/
fun <T> Selector<T>.itemSelectionFlow(element: T, scope: CoroutineScope): SharedFlow<Boolean> = MutableSharedFlow<Boolean>().apply {
itemSelected.onEach { if (it == element) emit(true) }.launchIn(scope)
itemUnselected.onEach { if (it == element) emit(false) }.launchIn(scope)
}.asSharedFlow()