Remove not needed MediaGalleryTimelineProvider

libraries/mediaviewer/impl/build.gradle.kts

@@ -33,7 +33,6 @@ dependencies {
     implementation(libs.vanniktech.blurhash)
     implementation(libs.telephoto.flick)
 
-    implementation(projects.features.networkmonitor.api)
     implementation(projects.libraries.androidutils)
     implementation(projects.libraries.architecture)
     implementation(projects.libraries.core)
@@ -52,7 +51,6 @@ dependencies {
     implementation(projects.libraries.di)
     implementation(projects.libraries.matrix.api)
 
-    testImplementation(projects.features.networkmonitor.test)
     testImplementation(projects.libraries.featureflag.test)
     testImplementation(projects.libraries.matrix.test)
     testImplementation(projects.libraries.mediaviewer.test)

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/gallery/MediaGalleryPresenter.kt

@@ -9,6 +9,7 @@ package io.element.android.libraries.mediaviewer.impl.gallery
 
 import android.content.ActivityNotFoundException
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.derivedStateOf
@@ -50,7 +51,6 @@ import kotlinx.coroutines.launch
 class MediaGalleryPresenter @AssistedInject constructor(
     @Assisted private val navigator: MediaGalleryNavigator,
     private val room: MatrixRoom,
-    private val timelineProvider: MediaGalleryTimelineProvider,
     private val timelineMediaItemsFactory: TimelineMediaItemsFactory,
     private val localMediaFactory: LocalMediaFactory,
     private val mediaLoader: MatrixMediaLoader,
@@ -97,27 +97,36 @@ class MediaGalleryPresenter @AssistedInject constructor(
         val snackbarMessage by snackbarDispatcher.collectSnackbarMessageAsState()
         localMediaActions.Configure()
 
+        var timeline by remember { mutableStateOf<AsyncData<Timeline>>(AsyncData.Uninitialized) }
+        LaunchedEffect(Unit) {
+            room.mediaTimeline()
+                .fold(
+                    { timeline = AsyncData.Success(it) },
+                    { timeline = AsyncData.Failure(it) },
+                )
+        }
+        DisposableEffect(Unit) {
+            onDispose {
+                timeline.dataOrNull()?.close()
+            }
+        }
+
         MediaListEffect(
+            timeline = timeline,
             onItemsChange = { newItems ->
                 mediaItems = newItems
             }
         )
 
-        LaunchedEffect(Unit) {
-            timelineProvider.launchIn(this)
-        }
-
         fun handleEvents(event: MediaGalleryEvents) {
             when (event) {
                 is MediaGalleryEvents.ChangeMode -> {
                     mode = event.mode
                 }
                 is MediaGalleryEvents.LoadMore -> coroutineScope.launch {
-                    timelineProvider.invokeOnTimeline {
-                        paginate(event.direction)
-                    }
+                    timeline.dataOrNull()?.paginate(event.direction)
                 }
-                is MediaGalleryEvents.Delete -> coroutineScope.delete(event.eventId)
+                is MediaGalleryEvents.Delete -> coroutineScope.delete(timeline, event.eventId)
                 is MediaGalleryEvents.SaveOnDisk -> coroutineScope.saveOnDisk(event.mediaItem)
                 is MediaGalleryEvents.Share -> coroutineScope.share(event.mediaItem)
                 is MediaGalleryEvents.ViewInTimeline -> {
@@ -166,18 +175,19 @@ class MediaGalleryPresenter @AssistedInject constructor(
     }
 
     @Composable
-    private fun MediaListEffect(onItemsChange: (AsyncData<ImmutableList<MediaItem>>) -> Unit) {
+    private fun MediaListEffect(
+        timeline: AsyncData<Timeline>,
+        onItemsChange: (AsyncData<ImmutableList<MediaItem>>) -> Unit,
+    ) {
         val updatedOnItemsChange by rememberUpdatedState(onItemsChange)
 
-        val timelineState by timelineProvider.timelineStateFlow.collectAsState()
-
-        LaunchedEffect(timelineState) {
-            when (val asyncTimeline = timelineState) {
+        LaunchedEffect(timeline) {
+            when (timeline) {
                 AsyncData.Uninitialized -> flowOf(AsyncData.Uninitialized)
-                is AsyncData.Failure -> flowOf(AsyncData.Failure(asyncTimeline.error))
+                is AsyncData.Failure -> flowOf(AsyncData.Failure(timeline.error))
                 is AsyncData.Loading -> flowOf(AsyncData.Loading())
                 is AsyncData.Success -> {
-                    asyncTimeline.data.timelineItems
+                    timeline.data.timelineItems
                         .onEach { items ->
                             timelineMediaItemsFactory.replaceWith(
                                 timelineItems = items,
@@ -185,7 +195,7 @@ class MediaGalleryPresenter @AssistedInject constructor(
                         }
                         .launchIn(this)
 
-                    asyncTimeline.data.paginationStatus(Timeline.PaginationDirection.BACKWARDS)
+                    timeline.data.paginationStatus(Timeline.PaginationDirection.BACKWARDS)
                         .onEach { backwardPaginationStatus ->
                             if (backwardPaginationStatus.canPaginate) {
                                 timelineMediaItemsFactory.onCanPaginate()
@@ -205,13 +215,14 @@ class MediaGalleryPresenter @AssistedInject constructor(
         }
     }
 
-    private fun CoroutineScope.delete(eventId: EventId) = launch {
-        timelineProvider.invokeOnTimeline {
-            redactEvent(
-                eventOrTransactionId = eventId.toEventOrTransactionId(),
-                reason = null,
-            )
-        }
+    private fun CoroutineScope.delete(
+        timeline: AsyncData<Timeline>,
+        eventId: EventId,
+    ) = launch {
+        timeline.dataOrNull()?.redactEvent(
+            eventOrTransactionId = eventId.toEventOrTransactionId(),
+            reason = null,
+        )
     }
 
     private suspend fun downloadMedia(mediaItem: MediaItem.Event): Result<LocalMedia> {

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/gallery/MediaGalleryTimelineProvider.kt

@@ -1,113 +0,0 @@
-/*
- * Copyright 2024 New Vector Ltd.
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- * Please see LICENSE in the repository root for full details.
- */
-
-package io.element.android.libraries.mediaviewer.impl.gallery
-
-import io.element.android.features.networkmonitor.api.NetworkMonitor
-import io.element.android.libraries.architecture.AsyncData
-import io.element.android.libraries.core.coroutine.mapState
-import io.element.android.libraries.di.RoomScope
-import io.element.android.libraries.di.SingleIn
-import io.element.android.libraries.featureflag.api.FeatureFlagService
-import io.element.android.libraries.featureflag.api.FeatureFlags
-import io.element.android.libraries.matrix.api.room.MatrixRoom
-import io.element.android.libraries.matrix.api.timeline.Timeline
-import io.element.android.libraries.matrix.api.timeline.TimelineProvider
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.coroutineScope
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.distinctUntilChanged
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.flow.onEach
-import javax.inject.Inject
-
-@SingleIn(RoomScope::class)
-class MediaGalleryTimelineProvider @Inject constructor(
-    private val room: MatrixRoom,
-    private val networkMonitor: NetworkMonitor,
-    private val featureFlagService: FeatureFlagService,
-) : TimelineProvider {
-    private val _timelineStateFlow: MutableStateFlow<AsyncData<Timeline>> =
-        MutableStateFlow(AsyncData.Uninitialized)
-
-    override fun activeTimelineFlow(): StateFlow<Timeline?> {
-        return _timelineStateFlow
-            .mapState { value ->
-                value.dataOrNull()
-            }
-    }
-
-    val timelineStateFlow = _timelineStateFlow
-
-    fun launchIn(scope: CoroutineScope) {
-        _timelineStateFlow.subscriptionCount
-            .map { count -> count > 0 }
-            .distinctUntilChanged()
-            .onEach { isActive ->
-                if (isActive) {
-                    onActive()
-                } else {
-                    onInactive()
-                }
-            }
-            .launchIn(scope)
-    }
-
-    private suspend fun onActive() = coroutineScope {
-        combine(
-            featureFlagService.isFeatureEnabledFlow(FeatureFlags.MediaGallery),
-            networkMonitor.connectivity
-        ) { isEnabled, _ ->
-            // do not use connectivity here as data can be loaded from cache, it's just to trigger retry if needed
-            isEnabled
-        }
-            .onEach { isFeatureEnabled ->
-                if (isFeatureEnabled) {
-                    loadTimelineIfNeeded()
-                } else {
-                    resetTimeline()
-                }
-            }
-            .launchIn(this)
-    }
-
-    private suspend fun onInactive() {
-        resetTimeline()
-    }
-
-    private suspend fun resetTimeline() {
-        invokeOnTimeline {
-            close()
-        }
-        _timelineStateFlow.emit(AsyncData.Uninitialized)
-    }
-
-    suspend fun invokeOnTimeline(action: suspend Timeline.() -> Unit) {
-        when (val asyncTimeline = timelineStateFlow.value) {
-            is AsyncData.Success -> action(asyncTimeline.data)
-            else -> Unit
-        }
-    }
-
-    private suspend fun loadTimelineIfNeeded() {
-        when (timelineStateFlow.value) {
-            is AsyncData.Uninitialized,
-            is AsyncData.Failure -> {
-                timelineStateFlow.emit(AsyncData.Loading())
-                room.mediaTimeline()
-                    .fold(
-                        { timelineStateFlow.emit(AsyncData.Success(it)) },
-                        { timelineStateFlow.emit(AsyncData.Failure(it)) }
-                    )
-            }
-            else -> Unit
-        }
-    }
-}

libraries/mediaviewer/impl/src/test/kotlin/io/element/android/libraries/mediaviewer/impl/gallery/MediaGalleryPresenterTest.kt

@@ -9,9 +9,7 @@ package io.element.android.libraries.mediaviewer.impl.gallery
 
 import android.net.Uri
 import com.google.common.truth.Truth.assertThat
-import io.element.android.features.networkmonitor.test.FakeNetworkMonitor
 import io.element.android.libraries.designsystem.utils.snackbar.SnackbarDispatcher
-import io.element.android.libraries.featureflag.test.FakeFeatureFlagService
 import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.matrix.api.room.MatrixRoom
 import io.element.android.libraries.matrix.api.timeline.MatrixTimelineItem
@@ -242,11 +240,6 @@ class MediaGalleryPresenterTest {
         return MediaGalleryPresenter(
             navigator = navigator,
             room = room,
-            timelineProvider = MediaGalleryTimelineProvider(
-                room = room,
-                networkMonitor = FakeNetworkMonitor(),
-                featureFlagService = FakeFeatureFlagService(),
-            ),
             timelineMediaItemsFactory = FakeTimelineMediaItemsFactory(
                 replaceWithLambda = lambdaRecorder<List<MatrixTimelineItem>, Unit> { _ -> },
                 onCanPaginateLambda = lambdaRecorder<Unit> { },