Snackbar: Use a private SnackbarDispatcher() to ensure the Snackbar is displayed in the current screen (#4128)

libraries/mediaviewer/impl/src/main/kotlin/io/element/android/libraries/mediaviewer/impl/viewer/MediaViewerPresenter.kt

@@ -44,7 +44,6 @@ class MediaViewerPresenter @AssistedInject constructor(
     @Assisted private val dataSource: MediaViewerDataSource,
     private val room: MatrixRoom,
     private val localMediaActions: LocalMediaActions,
-    private val snackbarDispatcher: SnackbarDispatcher,
 ) : Presenter<MediaViewerState> {
     @AssistedFactory
     interface Factory {
@@ -55,6 +54,9 @@ class MediaViewerPresenter @AssistedInject constructor(
         ): MediaViewerPresenter
     }
 
+    // Use a local snackbarDispatcher because this presenter is used in an Overlay Node
+    private val snackbarDispatcher = SnackbarDispatcher()
+
     @Composable
     override fun present(): MediaViewerState {
         val coroutineScope = rememberCoroutineScope()

libraries/mediaviewer/impl/src/test/kotlin/io/element/android/libraries/mediaviewer/impl/viewer/MediaViewerPresenterTest.kt

@@ -13,7 +13,6 @@ import android.net.Uri
 import app.cash.turbine.ReceiveTurbine
 import com.google.common.truth.Truth.assertThat
 import io.element.android.libraries.architecture.AsyncData
-import io.element.android.libraries.designsystem.utils.snackbar.SnackbarDispatcher
 import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.matrix.api.media.MediaSource
 import io.element.android.libraries.matrix.api.room.MatrixRoom
@@ -568,7 +567,6 @@ class MediaViewerPresenterTest {
         eventId: EventId? = null,
         matrixMediaLoader: FakeMatrixMediaLoader = FakeMatrixMediaLoader(),
         localMediaActions: FakeLocalMediaActions = FakeLocalMediaActions(),
-        snackbarDispatcher: SnackbarDispatcher = SnackbarDispatcher(),
         mediaGalleryDataSource: MediaGalleryDataSource = FakeMediaGalleryDataSource(
             startLambda = { },
         ),
@@ -598,7 +596,6 @@ class MediaViewerPresenterTest {
             ),
             room = room,
             localMediaActions = localMediaActions,
-            snackbarDispatcher = snackbarDispatcher,
         )
     }
 }