Periphery cleanup (#5893)

ElementX/Sources/Screens/FilePreviewScreen/TimelineMediaPreviewDataSource.swift

@@ -24,7 +24,6 @@ class TimelineMediaPreviewDataSource: NSObject, QLPreviewControllerDataSource {
     private(set) var previewItems: [TimelineMediaPreviewItem.Media]
     let previewItemsPaginationPublisher = PassthroughSubject<Void, Never>()
     
-    private let initialItem: EventBasedMessageTimelineItemProtocol
     /// The index of the initial item inside of `previewItems` that is to be shown.
     let initialItemIndex: Int
     
@@ -41,7 +40,6 @@ class TimelineMediaPreviewDataSource: NSObject, QLPreviewControllerDataSource {
          initialPadding: Int = 100,
          paginationState: TimelinePaginationState) {
         previewItems = itemViewStates.compactMap(TimelineMediaPreviewItem.Media.init)
-        self.initialItem = initialItem
         
         if let initialItemArrayIndex = previewItems.firstIndex(where: { $0.id == initialItem.id.eventOrTransactionID }) {
             initialItemIndex = initialItemArrayIndex + initialPadding

ElementX/Sources/Screens/FilePreviewScreen/TimelineMediaPreviewModels.swift

@@ -74,10 +74,6 @@ struct TimelineMediaPreviewViewStateBindings {
     var redactConfirmationItem: TimelineMediaPreviewItem.Media?
 }
 
-enum TimelineMediaPreviewAlertType {
-    case authorizationRequired
-}
-
 enum TimelineMediaPreviewViewAction {
     case updateCurrentItem(TimelineMediaPreviewItem)
     case showItemDetails(TimelineMediaPreviewItem.Media)

ElementX/Sources/Screens/FilePreviewScreen/TimelineMediaPreviewModifier.swift

@@ -62,7 +62,6 @@ private struct MediaPreviewViewController: UIViewControllerRepresentable {
         private var hasBeenPresented = false
         
         private var dismissalObserver: AnyCancellable?
-        private var cancellables: Set<AnyCancellable> = []
         
         init(viewModel: TimelineMediaPreviewViewModel,
              dismissalPublisher: PassthroughSubject<Void, Never>,

ElementX/Sources/Screens/FilePreviewScreen/TimelineMediaPreviewViewModel.swift

@@ -196,7 +196,6 @@ class TimelineMediaPreviewViewModel: TimelineMediaPreviewViewModelType {
                                            canCurrentUserRedactOthers: timelineContext.viewState.canCurrentUserRedactOthers,
                                            canCurrentUserPin: timelineContext.viewState.canCurrentUserPin,
                                            pinnedEventIDs: timelineContext.viewState.pinnedEventIDs,
-                                           isDM: timelineContext.viewState.isDM,
                                            isViewSourceEnabled: timelineContext.viewState.isViewSourceEnabled,
                                            areThreadsEnabled: timelineContext.viewState.areThreadsEnabled,
                                            timelineKind: timelineContext.viewState.timelineKind,

ElementX/Sources/Screens/FilePreviewScreen/View/TimelineMediaPreviewController.swift

@@ -335,10 +335,6 @@ private struct DetailsButton: View {
         context.viewState.currentItem
     }
     
-    var isHidden: Bool {
-        currentItem.mediaItem == nil
-    }
-    
     var body: some View {
         if let mediaItem = currentItem.mediaItem {
             Button { context.send(viewAction: .showItemDetails(mediaItem)) } label: {