Add empty states for the media gallery sections

ElementX/Resources/Localizations/en.lproj/Localizable.strings

@@ -117,6 +117,7 @@
 "action_view_in_timeline" = "View in timeline";
 "action_view_source" = "View source";
 "action_yes" = "Yes";
+"action_yes_try_again" = "Yes, try again";
 "banner_migrate_to_native_sliding_sync_action" = "Log Out & Upgrade";
 "banner_migrate_to_native_sliding_sync_description" = "Your server now supports a new, faster protocol. Log out and log back in to upgrade now. Doing this now will help you avoid a forced logout when the old protocol is removed later.";
 "banner_migrate_to_native_sliding_sync_force_logout_title" = "Your homeserver no longer supports the old protocol. Please log out and log back in to continue using the app.";
@@ -138,7 +139,8 @@
 "common_creating_room" = "Creating room…";
 "common_current_user_left_room" = "Left room";
 "common_dark" = "Dark";
-"common_date_separator_this_month" = "This month";
+"common_date_date_at_time" = "%1$@ at %2$@";
+"common_date_this_month" = "This month";
 "common_decryption_error" = "Decryption error";
 "common_developer_options" = "Developer options";
 "common_device_id" = "Device ID";
@@ -379,7 +381,11 @@
 "screen_knock_requests_list_accept_all_alert_description" = "Are you sure you want to accept all requests to join?";
 "screen_knock_requests_list_accept_all_alert_title" = "Accept all requests";
 "screen_knock_requests_list_accept_all_button_title" = "Accept all";
+"screen_knock_requests_list_accept_all_failed_alert_description" = "We couldn’t accept all requests. Would you like to try again?";
+"screen_knock_requests_list_accept_all_failed_alert_title" = "Failed to accept all requests";
 "screen_knock_requests_list_accept_all_loading_title" = "Accepting all requests to join";
+"screen_knock_requests_list_accept_failed_alert_description" = "We couldn’t accept this request. Would you like to try again?";
+"screen_knock_requests_list_accept_failed_alert_title" = "Failed to accept request";
 "screen_knock_requests_list_accept_loading_title" = "Accepting request to join";
 "screen_knock_requests_list_ban_alert_confirm_button_title" = "Yes, decline and ban";
 "screen_knock_requests_list_ban_alert_description" = "Are you sure you want to decline and ban %1$@? This user won’t be able to request access to join this room again.";
@@ -389,9 +395,12 @@
 "screen_knock_requests_list_decline_alert_description" = "Are you sure you want to decline %1$@ request to join this room?";
 "screen_knock_requests_list_decline_alert_title" = "Decline access";
 "screen_knock_requests_list_decline_and_ban_action_title" = "Decline and ban";
+"screen_knock_requests_list_decline_failed_alert_description" = "We couldn’t decline this request. Would you like to try again?";
+"screen_knock_requests_list_decline_failed_alert_title" = "Failed to decline request";
 "screen_knock_requests_list_decline_loading_title" = "Declining request to join";
 "screen_knock_requests_list_empty_state_description" = "When somebody will ask to join the room, you’ll be able to see their request here.";
 "screen_knock_requests_list_empty_state_title" = "No pending request to join";
+"screen_knock_requests_list_initial_loading_title" = "Loading requests to join…";
 "screen_knock_requests_list_title" = "Requests to join";
 "screen_media_details_file_format" = "File format";
 "screen_media_details_filename" = "File name";
@@ -615,12 +624,14 @@
 "screen_login_title_with_homeserver" = "Sign in to %1$@";
 "screen_media_browser_delete_confirmation_subtitle" = "This file will be removed from the room and members won’t have access to it.";
 "screen_media_browser_delete_confirmation_title" = "Delete file?";
-"screen_media_browser_empty_state_subtitle" = "Images and videos uploaded to this room will be shown here.";
-"screen_media_browser_empty_state_title" = "No media uploaded yet";
+"screen_media_browser_files_empty_state_subtitle" = "Documents, audio files, and voice messages uploaded to this room will be shown here.";
+"screen_media_browser_files_empty_state_title" = "No files uploaded yet";
 "screen_media_browser_list_loading_files" = "Loading files…";
 "screen_media_browser_list_loading_media" = "Loading media…";
 "screen_media_browser_list_mode_files" = "Files";
 "screen_media_browser_list_mode_media" = "Media";
+"screen_media_browser_media_empty_state_subtitle" = "Images and videos uploaded to this room will be shown here.";
+"screen_media_browser_media_empty_state_title" = "No media uploaded yet";
 "screen_media_browser_title" = "Media and files";
 "screen_media_picker_error_failed_selection" = "Failed selecting media, please try again.";
 "screen_migration_message" = "This is a one time process, thanks for waiting.";

ElementX/Sources/Generated/Strings.swift

@@ -270,6 +270,8 @@ internal enum L10n {
   internal static var actionViewSource: String { return L10n.tr("Localizable", "action_view_source") }
   /// Yes
   internal static var actionYes: String { return L10n.tr("Localizable", "action_yes") }
+  /// Yes, try again
+  internal static var actionYesTryAgain: String { return L10n.tr("Localizable", "action_yes_try_again") }
   /// Log Out & Upgrade
   internal static var bannerMigrateToNativeSlidingSyncAction: String { return L10n.tr("Localizable", "banner_migrate_to_native_sliding_sync_action") }
   /// Your server now supports a new, faster protocol. Log out and log back in to upgrade now. Doing this now will help you avoid a forced logout when the old protocol is removed later.
@@ -314,8 +316,12 @@ internal enum L10n {
   internal static var commonCurrentUserLeftRoom: String { return L10n.tr("Localizable", "common_current_user_left_room") }
   /// Dark
   internal static var commonDark: String { return L10n.tr("Localizable", "common_dark") }
+  /// %1$@ at %2$@
+  internal static func commonDateDateAtTime(_ p1: Any, _ p2: Any) -> String {
+    return L10n.tr("Localizable", "common_date_date_at_time", String(describing: p1), String(describing: p2))
+  }
   /// This month
-  internal static var commonDateSeparatorThisMonth: String { return L10n.tr("Localizable", "common_date_separator_this_month") }
+  internal static var commonDateThisMonth: String { return L10n.tr("Localizable", "common_date_this_month") }
   /// Decryption error
   internal static var commonDecryptionError: String { return L10n.tr("Localizable", "common_decryption_error") }
   /// Developer options
@@ -1316,8 +1322,16 @@ internal enum L10n {
   internal static var screenKnockRequestsListAcceptAllAlertTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_all_alert_title") }
   /// Accept all
   internal static var screenKnockRequestsListAcceptAllButtonTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_all_button_title") }
+  /// We couldn’t accept all requests. Would you like to try again?
+  internal static var screenKnockRequestsListAcceptAllFailedAlertDescription: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_all_failed_alert_description") }
+  /// Failed to accept all requests
+  internal static var screenKnockRequestsListAcceptAllFailedAlertTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_all_failed_alert_title") }
   /// Accepting all requests to join
   internal static var screenKnockRequestsListAcceptAllLoadingTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_all_loading_title") }
+  /// We couldn’t accept this request. Would you like to try again?
+  internal static var screenKnockRequestsListAcceptFailedAlertDescription: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_failed_alert_description") }
+  /// Failed to accept request
+  internal static var screenKnockRequestsListAcceptFailedAlertTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_failed_alert_title") }
   /// Accepting request to join
   internal static var screenKnockRequestsListAcceptLoadingTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_accept_loading_title") }
   /// Yes, decline and ban
@@ -1340,12 +1354,18 @@ internal enum L10n {
   internal static var screenKnockRequestsListDeclineAlertTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_decline_alert_title") }
   /// Decline and ban
   internal static var screenKnockRequestsListDeclineAndBanActionTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_decline_and_ban_action_title") }
+  /// We couldn’t decline this request. Would you like to try again?
+  internal static var screenKnockRequestsListDeclineFailedAlertDescription: String { return L10n.tr("Localizable", "screen_knock_requests_list_decline_failed_alert_description") }
+  /// Failed to decline request
+  internal static var screenKnockRequestsListDeclineFailedAlertTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_decline_failed_alert_title") }
   /// Declining request to join
   internal static var screenKnockRequestsListDeclineLoadingTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_decline_loading_title") }
   /// When somebody will ask to join the room, you’ll be able to see their request here.
   internal static var screenKnockRequestsListEmptyStateDescription: String { return L10n.tr("Localizable", "screen_knock_requests_list_empty_state_description") }
   /// No pending request to join
   internal static var screenKnockRequestsListEmptyStateTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_empty_state_title") }
+  /// Loading requests to join…
+  internal static var screenKnockRequestsListInitialLoadingTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_initial_loading_title") }
   /// Requests to join
   internal static var screenKnockRequestsListTitle: String { return L10n.tr("Localizable", "screen_knock_requests_list_title") }
   /// This account has been deactivated.
@@ -1372,10 +1392,10 @@ internal enum L10n {
   internal static var screenMediaBrowserDeleteConfirmationSubtitle: String { return L10n.tr("Localizable", "screen_media_browser_delete_confirmation_subtitle") }
   /// Delete file?
   internal static var screenMediaBrowserDeleteConfirmationTitle: String { return L10n.tr("Localizable", "screen_media_browser_delete_confirmation_title") }
-  /// Images and videos uploaded to this room will be shown here.
-  internal static var screenMediaBrowserEmptyStateSubtitle: String { return L10n.tr("Localizable", "screen_media_browser_empty_state_subtitle") }
-  /// No media uploaded yet
-  internal static var screenMediaBrowserEmptyStateTitle: String { return L10n.tr("Localizable", "screen_media_browser_empty_state_title") }
+  /// Documents, audio files, and voice messages uploaded to this room will be shown here.
+  internal static var screenMediaBrowserFilesEmptyStateSubtitle: String { return L10n.tr("Localizable", "screen_media_browser_files_empty_state_subtitle") }
+  /// No files uploaded yet
+  internal static var screenMediaBrowserFilesEmptyStateTitle: String { return L10n.tr("Localizable", "screen_media_browser_files_empty_state_title") }
   /// Loading files…
   internal static var screenMediaBrowserListLoadingFiles: String { return L10n.tr("Localizable", "screen_media_browser_list_loading_files") }
   /// Loading media…
@@ -1384,6 +1404,10 @@ internal enum L10n {
   internal static var screenMediaBrowserListModeFiles: String { return L10n.tr("Localizable", "screen_media_browser_list_mode_files") }
   /// Media
   internal static var screenMediaBrowserListModeMedia: String { return L10n.tr("Localizable", "screen_media_browser_list_mode_media") }
+  /// Images and videos uploaded to this room will be shown here.
+  internal static var screenMediaBrowserMediaEmptyStateSubtitle: String { return L10n.tr("Localizable", "screen_media_browser_media_empty_state_subtitle") }
+  /// No media uploaded yet
+  internal static var screenMediaBrowserMediaEmptyStateTitle: String { return L10n.tr("Localizable", "screen_media_browser_media_empty_state_title") }
   /// Media and files
   internal static var screenMediaBrowserTitle: String { return L10n.tr("Localizable", "screen_media_browser_title") }
   /// File format

ElementX/Sources/Screens/MediaEventsTimelineScreen/MediaEventsTimelineScreenViewModel.swift

@@ -178,7 +178,7 @@ class MediaEventsTimelineScreenViewModel: MediaEventsTimelineScreenViewModelType
     
     private func titleForDate(_ date: Date) -> String {
         if Calendar.current.isDate(date, equalTo: .now, toGranularity: .month) {
-            L10n.commonDateSeparatorThisMonth
+            L10n.commonDateThisMonth
         } else {
             date.formatted(.dateTime.month(.wide).year())
         }

ElementX/Sources/Screens/MediaEventsTimelineScreen/View/MediaEventsTimelineScreen.swift

@@ -41,22 +41,27 @@ struct MediaEventsTimelineScreen: View {
     // * flip the grid vertically to counteract the scroll view
     // but also horizontally to preserve the corect item order
     // * flip the items on both axes have them render correctly
+    @ViewBuilder
     private var mainContent: some View {
-        ScrollView {
-            Group {
-                switch context.viewState.bindings.screenMode {
-                case .media:
-                    mediaContent
-                case .files:
-                    filesContent
-                }
+        if context.viewState.groups.isEmpty, !context.viewState.isBackPaginating {
+            emptyState
+        } else {
+            ScrollView {
+                Group {
+                    switch context.viewState.bindings.screenMode {
+                    case .media:
+                        mediaContent
+                    case .files:
+                        filesContent
+                    }
                     
-                header
+                    header
+                }
+            }
+            .scaleEffect(.init(width: 1, height: -1))
+            .onChange(of: context.screenMode) { _, _ in
+                context.send(viewAction: .changedScreenMode)
             }
-        }
-        .scaleEffect(.init(width: 1, height: -1))
-        .onChange(of: context.screenMode) { _, _ in
-            context.send(viewAction: .changedScreenMode)
         }
     }
     
@@ -137,7 +142,7 @@ struct MediaEventsTimelineScreen: View {
     }
     
     @ViewBuilder
-    func viewForTimelineItem(_ item: RoomTimelineItemViewState) -> some View {
+    private func viewForTimelineItem(_ item: RoomTimelineItemViewState) -> some View {
         switch item.type {
         case .image(let timelineItem):
             ImageMediaEventsTimelineView(timelineItem: timelineItem)
@@ -155,36 +160,62 @@ struct MediaEventsTimelineScreen: View {
             EmptyView()
         }
     }
+    
+    @ViewBuilder
+    private var emptyState: some View {
+        FullscreenDialog(topPadding: UIConstants.iconTopPaddingToNavigationBar, background: .gradient) {
+            VStack(spacing: 16) {
+                switch context.screenMode {
+                case .media:
+                    emptyMedia
+                case .files:
+                    emptyFiles
+                }
+            }
+            .padding(16)
+        } bottomContent: { EmptyView() }
+    }
+    
+    private var emptyMedia: some View {
+        Group {
+            BigIcon(icon: \.image)
+            
+            Text(L10n.screenMediaBrowserMediaEmptyStateTitle)
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.headingMDBold)
+                .multilineTextAlignment(.center)
+            
+            Text(L10n.screenMediaBrowserMediaEmptyStateSubtitle)
+                .foregroundColor(.compound.textSecondary)
+                .font(.compound.bodyMD)
+                .multilineTextAlignment(.center)
+        }
+    }
+    
+    private var emptyFiles: some View {
+        Group {
+            BigIcon(icon: \.document)
+            
+            Text(L10n.screenMediaBrowserFilesEmptyStateTitle)
+                .foregroundColor(.compound.textPrimary)
+                .font(.compound.headingMDBold)
+                .multilineTextAlignment(.center)
+            
+            Text(L10n.screenMediaBrowserFilesEmptyStateSubtitle)
+                .foregroundColor(.compound.textSecondary)
+                .font(.compound.bodyMD)
+                .multilineTextAlignment(.center)
+        }
+    }
 }
 
 // MARK: - Previews
 
 struct MediaEventsTimelineScreen_Previews: PreviewProvider, TestablePreview {
-    static let timelineViewModel: TimelineViewModel = {
-        let timelineController = MockRoomTimelineController(timelineKind: .media(.mediaFilesScreen))
-        return TimelineViewModel(roomProxy: JoinedRoomProxyMock(.init(name: "Preview room")),
-                                 timelineController: timelineController,
-                                 mediaProvider: MediaProviderMock(configuration: .init()),
-                                 mediaPlayerProvider: MediaPlayerProviderMock(),
-                                 voiceMessageMediaManager: VoiceMessageMediaManagerMock(),
-                                 userIndicatorController: UserIndicatorControllerMock(),
-                                 appMediator: AppMediatorMock.default,
-                                 appSettings: ServiceLocator.shared.settings,
-                                 analyticsService: ServiceLocator.shared.analytics,
-                                 emojiProvider: EmojiProvider(appSettings: ServiceLocator.shared.settings))
-    }()
-    
-    static let mediaViewModel = MediaEventsTimelineScreenViewModel(mediaTimelineViewModel: timelineViewModel,
-                                                                   filesTimelineViewModel: timelineViewModel,
-                                                                   mediaProvider: MediaProviderMock(configuration: .init()),
-                                                                   screenMode: .media,
-                                                                   userIndicatorController: UserIndicatorControllerMock())
-    
-    static let filesViewModel = MediaEventsTimelineScreenViewModel(mediaTimelineViewModel: timelineViewModel,
-                                                                   filesTimelineViewModel: timelineViewModel,
-                                                                   mediaProvider: MediaProviderMock(configuration: .init()),
-                                                                   screenMode: .files,
-                                                                   userIndicatorController: UserIndicatorControllerMock())
+    static let mediaViewModel = makeViewModel(screenMode: .media)
+    static let filesViewModel = makeViewModel(screenMode: .files)
+    static let emptyMediaViewModel = makeViewModel(timelineKind: .detached, screenMode: .media)
+    static let emptyFilesViewModel = makeViewModel(timelineKind: .detached, screenMode: .files)
     
     static var previews: some View {
         NavigationStack {
@@ -196,5 +227,38 @@ struct MediaEventsTimelineScreen_Previews: PreviewProvider, TestablePreview {
             MediaEventsTimelineScreen(context: filesViewModel.context)
         }
         .previewDisplayName("Files")
+        
+        NavigationStack {
+            MediaEventsTimelineScreen(context: emptyMediaViewModel.context)
+        }
+        .previewDisplayName("Empty Media")
+        
+        NavigationStack {
+            MediaEventsTimelineScreen(context: emptyFilesViewModel.context)
+        }
+        .previewDisplayName("Empty Files")
+    }
+    
+    private static func makeViewModel(timelineKind: TimelineKind = .media(.mediaFilesScreen),
+                                      screenMode: MediaEventsTimelineScreenMode) -> MediaEventsTimelineScreenViewModel {
+        MediaEventsTimelineScreenViewModel(mediaTimelineViewModel: makeTimelineViewModel(timelineKind: timelineKind),
+                                           filesTimelineViewModel: makeTimelineViewModel(timelineKind: timelineKind),
+                                           mediaProvider: MediaProviderMock(configuration: .init()),
+                                           screenMode: screenMode,
+                                           userIndicatorController: UserIndicatorControllerMock())
+    }
+    
+    private static func makeTimelineViewModel(timelineKind: TimelineKind) -> TimelineViewModel {
+        let timelineController = MockRoomTimelineController(timelineKind: timelineKind)
+        return TimelineViewModel(roomProxy: JoinedRoomProxyMock(.init(name: "Preview room")),
+                                 timelineController: timelineController,
+                                 mediaProvider: MediaProviderMock(configuration: .init()),
+                                 mediaPlayerProvider: MediaPlayerProviderMock(),
+                                 voiceMessageMediaManager: VoiceMessageMediaManagerMock(),
+                                 userIndicatorController: UserIndicatorControllerMock(),
+                                 appMediator: AppMediatorMock.default,
+                                 appSettings: ServiceLocator.shared.settings,
+                                 analyticsService: ServiceLocator.shared.analytics,
+                                 emojiProvider: EmojiProvider(appSettings: ServiceLocator.shared.settings))
     }
 }