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Fix search results never displaying an empty state

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Use the pagination state to understand when a search finished with no results
This commit is contained in:
Jorge Martín
2026-08-21 12:37:47 +02:00
parent 9a2d23c8a1
commit 3a946475f7
1 changed files with 30 additions and 7 deletions
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features/home/impl/src/main/kotlin/io/element/android/features/home/impl/search/GlobalSearchPresenter.kt
+30 -7
View File
@@ -47,13 +47,16 @@ import io.element.android.libraries.matrix.api.timeline.item.event.VoiceMessageT
import io.element.android.libraries.matrix.api.timeline.item.event.isMediaContent
import io.element.android.libraries.matrix.ui.components.AttachmentThumbnailType
import io.element.android.libraries.matrix.ui.messages.toPlainText
import kotlinx.collections.immutable.persistentListOf
import kotlinx.collections.immutable.toImmutableList
import kotlinx.coroutines.async
import kotlinx.coroutines.awaitAll
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.collectLatest
import kotlinx.coroutines.flow.combine
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.launch
import timber.log.Timber
import kotlin.jvm.optionals.getOrElse
import kotlin.time.Duration.Companion.milliseconds
@@ -92,8 +95,11 @@ class GlobalSearchPresenter(
AsyncData.Uninitialized
}
roomListSearchDataSource.setSearchQuery(queryState.text.toString())
currentMessageSearch.setQuery(queryState.text.toString())
launch { roomListSearchDataSource.setSearchQuery(queryState.text.toString()) }
launch {
currentMessageSearch.setQuery(queryState.text.toString())
.onFailure { Timber.e(it, "Could not set query for message search") }
}
}
LaunchedEffect(currentTarget) {
@@ -114,7 +120,15 @@ class GlobalSearchPresenter(
}
}
GlobalSearchTarget.MESSAGES -> {
currentMessageSearch.results.collectLatest { results ->
Timber.d("Message search found ${currentMessageSearch.results.value.size} items")
combine(
currentMessageSearch.results,
currentMessageSearch.paginationState,
) { results, paginationState ->
Pair(results, paginationState)
}.collectLatest { (results, paginationState) ->
Timber.d("Message search found ${results.size} items, pagination state: $paginationState")
// Try processing the results in parallel to speed up the processing time, since we have to wait until we get the room info for each
// result, which can be slow if we have a lot of results. The original order is kept by using `awaitAll()`.
val mappedResults = results.map { result ->
@@ -136,10 +150,19 @@ class GlobalSearchPresenter(
.awaitAll()
.mapNotNull { it }
searchResults = if (queryState.text.isNotEmpty() && mappedResults.isNotEmpty()) {
AsyncData.Success(GlobalSearchResults.MessageSearchResults(results = mappedResults.toImmutableList()))
} else {
AsyncData.Uninitialized
searchResults = when {
mappedResults.isNotEmpty() -> {
AsyncData.Success(GlobalSearchResults.MessageSearchResults(results = mappedResults.toImmutableList()))
}
paginationState is MessageSearchPaginationState.Idle && paginationState.endReached -> {
AsyncData.Success(GlobalSearchResults.MessageSearchResults(results = persistentListOf()))
}
paginationState is MessageSearchPaginationState.Loading -> {
AsyncData.Loading(prevData = searchResults.dataOrNull())
}
else -> {
AsyncData.Uninitialized
}
}
}
}