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Use produceState

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This commit is contained in:
Benoit Marty
2024-10-08 13:45:25 +02:00
parent 84fd25c6d9
commit 189fbe9d11
1 changed files with 8 additions and 17 deletions
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features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/crypto/identity/IdentityChangeStatePresenter.kt
+8 -17
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@@ -8,10 +8,9 @@
package io.element.android.features.messages.impl.crypto.identity package io.element.android.features.messages.impl.crypto.identity
import androidx.compose.runtime.Composable import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect import androidx.compose.runtime.ProduceStateScope
import androidx.compose.runtime.MutableState import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf import androidx.compose.runtime.produceState
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope import androidx.compose.runtime.rememberCoroutineScope
import io.element.android.libraries.architecture.Presenter import io.element.android.libraries.architecture.Presenter
import io.element.android.libraries.matrix.api.core.UserId import io.element.android.libraries.matrix.api.core.UserId
@@ -26,7 +25,6 @@ import kotlinx.collections.immutable.toPersistentList
import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.combine import kotlinx.coroutines.flow.combine
import kotlinx.coroutines.flow.distinctUntilChanged import kotlinx.coroutines.flow.distinctUntilChanged
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.flow.onEach import kotlinx.coroutines.flow.onEach
import kotlinx.coroutines.launch import kotlinx.coroutines.launch
import timber.log.Timber import timber.log.Timber
@@ -39,12 +37,8 @@ class IdentityChangeStatePresenter @Inject constructor(
@Composable @Composable
override fun present(): IdentityChangeState { override fun present(): IdentityChangeState {
val coroutineScope = rememberCoroutineScope() val coroutineScope = rememberCoroutineScope()
val roomMemberIdentityStateChange = remember { val roomMemberIdentityStateChange by produceState(persistentListOf()) {
mutableStateOf(persistentListOf<RoomMemberIdentityStateChange>()) observeRoomMemberIdentityStateChange()
}
LaunchedEffect(Unit) {
observeRoomMemberIdentityStateChange(roomMemberIdentityStateChange)
} }
fun handleEvent(event: IdentityChangeEvent) { fun handleEvent(event: IdentityChangeEvent) {
@@ -54,14 +48,12 @@ class IdentityChangeStatePresenter @Inject constructor(
} }
return IdentityChangeState( return IdentityChangeState(
roomMemberIdentityStateChanges = roomMemberIdentityStateChange.value, roomMemberIdentityStateChanges = roomMemberIdentityStateChange,
eventSink = ::handleEvent, eventSink = ::handleEvent,
) )
} }
private fun CoroutineScope.observeRoomMemberIdentityStateChange( private fun ProduceStateScope<PersistentList<RoomMemberIdentityStateChange>>.observeRoomMemberIdentityStateChange() {
roomMemberIdentityStateChange: MutableState<PersistentList<RoomMemberIdentityStateChange>>
) {
combine(room.identityStateChangesFlow, room.membersStateFlow) { identityStateChanges, membersState -> combine(room.identityStateChangesFlow, room.membersStateFlow) { identityStateChanges, membersState ->
identityStateChanges.map { identityStateChange -> identityStateChanges.map { identityStateChange ->
val member = membersState.roomMembers() val member = membersState.roomMembers()
@@ -75,9 +67,8 @@ class IdentityChangeStatePresenter @Inject constructor(
} }
.distinctUntilChanged() .distinctUntilChanged()
.onEach { roomMemberIdentityStateChanges -> .onEach { roomMemberIdentityStateChanges ->
roomMemberIdentityStateChange.value = roomMemberIdentityStateChanges.toPersistentList() value = roomMemberIdentityStateChanges.toPersistentList()
} }
.launchIn(this)
} }
private fun CoroutineScope.pinUserIdentity(userId: UserId) = launch { private fun CoroutineScope.pinUserIdentity(userId: UserId) = launch {