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Add MatrixClient.totalUnreadCountFlow() extension

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Extract the logic to observe the total unread count of a MatrixClient, refreshed on each sync
heartbeat, to a shared extension and use it in HomePresenter and PreferencesRootPresenter.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Benoit Marty
2026-10-14 14:31:31 +02:00
parent b37f1d5b71
commit 095fda3d9e
4 changed files with 38 additions and 30 deletions
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features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/root/PreferencesRootPresenter.kt
+2 -12
View File
@@ -32,6 +32,7 @@ import io.element.android.libraries.featureflag.api.FeatureFlags
import io.element.android.libraries.matrix.api.MatrixClient
import io.element.android.libraries.matrix.api.MatrixClientProvider
import io.element.android.libraries.matrix.api.core.SessionId
import io.element.android.libraries.matrix.api.totalUnreadCountFlow
import io.element.android.libraries.matrix.api.user.toMatrixUser
import io.element.android.libraries.preferences.api.store.AppPreferencesStore
import io.element.android.libraries.sessionstorage.api.SessionStore
@@ -40,17 +41,12 @@ import kotlinx.collections.immutable.persistentListOf
import kotlinx.collections.immutable.toImmutableList
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.FlowPreview
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.combine
import kotlinx.coroutines.flow.debounce
import kotlinx.coroutines.flow.distinctUntilChanged
import kotlinx.coroutines.flow.flatMapLatest
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.onStart
import kotlinx.coroutines.launch
import kotlin.time.Duration.Companion.milliseconds
@OptIn(ExperimentalCoroutinesApi::class)
@Inject
@@ -182,14 +178,8 @@ class PreferencesRootPresenter(
)
}
@OptIn(FlowPreview::class)
private fun unreadCountFlow(sessionId: SessionId): Flow<Int> {
val client = matrixClientProvider.getOrNull(sessionId) ?: return flowOf(0)
return client.syncService.heartBeat
// Delay the heartbeat so the SDK has time to update the unread count before we read it.
.debounce(100.milliseconds)
.onStart { emit(Unit) }
.map { client.totalUnreadCount().getOrDefault(0).toInt() }
.distinctUntilChanged()
return client.totalUnreadCountFlow()
}
}