protected override async Task PrepareAsync() { await base.PrepareAsync().ConfigureAwait(false); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new GameItem(mi) { Command = new MethodDelegateCommand(() => ServiceRegistration.Get <IGameLauncher>().LaunchGame(mi)) }; _genericPlayableItemCreatorDelegate = picd; _defaultScreen = new GamesShowItemsScreenData(picd); _availableScreens = new List <AbstractScreenData> { _defaultScreen, new GameFilterByPlatformScreenData(), new GameFilterByYearScreenData(), new GameFilterByGenreScreenData(), new GameFilterByDeveloperScreenData() }; _defaultSorting = new SortByTitle(); _availableSortings = new List <Sorting> { _defaultSorting, new SortByYear(), new SortByRatingDesc() }; var optionalMias = new Guid[] { GoodMergeAspect.ASPECT_ID }.Union(MediaNavigationModel.GetMediaSkinOptionalMIATypes(MediaNavigationMode)); _customRootViewSpecification = new MediaLibraryQueryViewSpecification(_viewName, null, _necessaryMias, optionalMias, true); }
protected override async Task PrepareAsync() { await base.PrepareAsync(); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new RecordingItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; _defaultScreen = new RecordingsShowItemsScreenData(picd); _availableScreens = new List <AbstractScreenData> { _defaultScreen, new RecordingFilterByNameScreenData(), new RecordingsFilterByChannelScreenData(), //new VideosFilterByActorScreenData(), //new VideosFilterByDirectorScreenData(), //new VideosFilterByWriterScreenData(), //new VideosFilterByGenreScreenData(), //new VideosFilterByYearScreenData(), //new VideosFilterBySystemScreenData(), new RecordingsSimpleSearchScreenData(picd), }; _defaultSorting = new SortByRecordingDateDesc(); _availableSortings = new List <Sorting> { _defaultSorting, new SortByTitle(), //new VideoSortByFirstGenre(), //new VideoSortByDuration(), //new VideoSortByFirstActor(), //new VideoSortByFirstDirector(), //new VideoSortByFirstWriter(), //new VideoSortBySize(), //new VideoSortByAspectRatio(), //new SortBySystem(), }; var optionalMias = new[] { MovieAspect.ASPECT_ID, EpisodeAspect.ASPECT_ID, AudioAspect.ASPECT_ID, VideoAspect.ASPECT_ID, VideoStreamAspect.ASPECT_ID, VideoAudioStreamAspect.ASPECT_ID, ImageAspect.ASPECT_ID }.Union(MediaNavigationModel.GetMediaSkinOptionalMIATypes(MediaNavigationMode)); _customRootViewSpecification = new StackingViewSpecification(_viewName, null, _necessaryMias, optionalMias, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; }
public void InitMediaNavigation(out string mediaNavigationMode, out NavigationData navigationData) { IEnumerable <Guid> skinDependentOptionalMIATypeIDs = MediaNavigationModel.GetMediaSkinOptionalMIATypes(MediaNavigationMode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new VideoItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; ViewSpecification rootViewSpecification = new MediaLibraryQueryViewSpecification(Consts.RES_VIDEOS_VIEW_NAME, null, Consts.NECESSARY_VIDEO_MIAS, skinDependentOptionalMIATypeIDs, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; AbstractScreenData filterByGenre = new VideosFilterByGenreScreenData(); ICollection <AbstractScreenData> availableScreens = new List <AbstractScreenData> { new VideosShowItemsScreenData(picd), new VideosFilterByLanguageScreenData(), new VideosFilterByActorScreenData(), filterByGenre, // C# doesn't like it to have an assignment inside a collection initializer new VideosFilterByYearScreenData(), new VideosFilterBySystemScreenData(), new VideosSimpleSearchScreenData(picd), }; Sorting.Sorting sortByTitle = new SortByTitle(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { sortByTitle, new SortByYear(), new VideoSortByFirstGenre(), new VideoSortByDuration(), new VideoSortByDirector(), new VideoSortByFirstActor(), new VideoSortBySize(), new VideoSortByAspectRatio(), new SortBySystem(), }; navigationData = new NavigationData(null, Consts.RES_VIDEOS_VIEW_NAME, MediaNavigationRootState, MediaNavigationRootState, rootViewSpecification, filterByGenre, availableScreens, sortByTitle) { AvailableSortings = availableSortings }; mediaNavigationMode = MediaNavigationMode; }
protected BaseNavigationInitializer() { // Create a generic delegate that knows all kind of our inbuilt media item types. _genericPlayableItemCreatorDelegate = mi => { if (mi.Aspects.ContainsKey(EpisodeAspect.ASPECT_ID)) { return new EpisodeItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(MovieAspect.ASPECT_ID)) { return new MovieItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(AudioAspect.ASPECT_ID)) { return new AudioItem(mi) { Command = new MethodDelegateCommand(() => MediaNavigationModel.AddCurrentViewToPlaylist(mi)) } } ; if (mi.Aspects.ContainsKey(VideoAspect.ASPECT_ID)) { return new VideoItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(ImageAspect.ASPECT_ID)) { return new ImageItem(mi) { Command = new MethodDelegateCommand(() => MediaNavigationModel.AddCurrentViewToPlaylist(mi)) } } ; return(null); }; }
protected BaseNavigationInitializer() { // Create a generic delegate that knows all kind of our inbuilt media item types. _genericPlayableItemCreatorDelegate = mi => { if (mi.Aspects.ContainsKey(SeriesAspect.ASPECT_ID)) return new SeriesItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; if (mi.Aspects.ContainsKey(MovieAspect.ASPECT_ID)) return new MovieItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; if (mi.Aspects.ContainsKey(AudioAspect.ASPECT_ID)) return new AudioItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; if (mi.Aspects.ContainsKey(VideoAspect.ASPECT_ID)) return new VideoItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; if (mi.Aspects.ContainsKey(ImageAspect.ASPECT_ID)) return new ImageItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; return null; }; }
/// <summary> /// Returns context variables to be set for the given workflow state id. /// </summary> /// <param name="workflowStateId">Workflow state which determines the root media navigation state.</param> /// <returns>Mapping of context variable keys to values.</returns> protected static IDictionary <string, object> PrepareRootState(Guid workflowStateId) { IDictionary <string, object> result = new Dictionary <string, object>(); // The initial state ID determines the media model "part" to initialize: Browse local media, browse media library, audio, videos or images. // The media model part determines the media navigation mode and the view contents to be set. NavigationData navigationData; string mode; if (_initializers.ContainsKey(workflowStateId)) { // Use the IMediaNavigationInitializer that is associated with our root workflow state. IMediaNavigationInitializer initializer = _initializers[workflowStateId]; initializer.InitMediaNavigation(out mode, out navigationData); } else { // If we were called with a supported root state, we should be either in state WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT // or WF_STATE_ID_MEDIA_BROWSE_NAVIGATION_ROOT here if (workflowStateId != Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT && workflowStateId != Consts.WF_STATE_ID_BROWSE_MEDIA_NAVIGATION_ROOT) { // Error case: We cannot handle the given state ServiceRegistration.Get <ILogger>().Warn("MediaNavigationModel: Unknown root workflow state with ID '{0}', initializing local media navigation", workflowStateId); // We simply use the local media mode as fallback for this case, so we go on workflowStateId = Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT; } mode = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? MediaNavigationMode.BrowseLocalMedia : MediaNavigationMode.BrowseMediaLibrary; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => { if (mi.Aspects.ContainsKey(AudioAspect.ASPECT_ID)) { return new AudioItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(VideoAspect.ASPECT_ID)) { return new VideoItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(ImageAspect.ASPECT_ID)) { return new ImageItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; return(null); }; IEnumerable <Guid> necessaryMIATypeIDs = new Guid[] { ProviderResourceAspect.ASPECT_ID, MediaAspect.ASPECT_ID, }; IEnumerable <Guid> optionalMIATypeIDs = new Guid[] { AudioAspect.ASPECT_ID, VideoAspect.ASPECT_ID, ImageAspect.ASPECT_ID, }.Union(skinDependentOptionalMIATypeIDs); string viewName = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? Consts.RES_LOCAL_MEDIA_ROOT_VIEW_NAME : Consts.RES_BROWSE_MEDIA_ROOT_VIEW_NAME; ViewSpecification rootViewSpecification = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? new AddedRemovableMediaViewSpecificationFacade(new LocalMediaRootProxyViewSpecification(viewName, necessaryMIATypeIDs, optionalMIATypeIDs)) : new AddedRemovableMediaViewSpecificationFacade(new BrowseMediaRootProxyViewSpecification(viewName, necessaryMIATypeIDs, optionalMIATypeIDs)); // Dynamic screens remain null - browse media states don't provide dynamic filters AbstractScreenData screenData = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? (AbstractScreenData) new LocalMediaNavigationScreenData(picd) : new BrowseMediaNavigationScreenData(picd); Sorting.Sorting browseDefaultSorting = new BrowseDefaultSorting(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { browseDefaultSorting, new SortByTitle(), new SortByDate(), // We could offer sortings here which are specific for one media item type but which will cope with all three item types (and sort items of the three types in a defined order) }; navigationData = new NavigationData(null, viewName, workflowStateId, workflowStateId, rootViewSpecification, screenData, null, browseDefaultSorting) { AvailableSortings = availableSortings }; } result.Add(Consts.KEY_NAVIGATION_MODE, mode); result.Add(Consts.KEY_NAVIGATION_DATA, navigationData); return(result); }
/// <summary> /// Returns context variables to be set for the given workflow state id. /// </summary> /// <param name="workflowStateId">Workflow state which determines the root media navigation state.</param> /// <returns>Mapping of context variable keys to values.</returns> protected static IDictionary <string, object> PrepareRootState(Guid workflowStateId) { IDictionary <string, object> result = new Dictionary <string, object>(); // The initial state ID determines the media model "part" to initialize: Browse local media, browse media library, audio, videos or images. // The media model part determines the media navigation mode and the view contents to be set. NavigationData navigationData; MediaNavigationMode mode; if (workflowStateId == Consts.WF_STATE_ID_AUDIO_NAVIGATION_ROOT) { mode = MediaNavigationMode.Audio; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new AudioItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; ViewSpecification rootViewSpecification = new MediaLibraryQueryViewSpecification(Consts.RES_AUDIO_VIEW_NAME, null, Consts.NECESSARY_AUDIO_MIAS, skinDependentOptionalMIATypeIDs, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; AbstractScreenData filterByAlbum = new AudioFilterByAlbumScreenData(); ICollection <AbstractScreenData> availableScreens = new List <AbstractScreenData> { new AudioShowItemsScreenData(picd), new AudioFilterByArtistScreenData(), filterByAlbum, // C# doesn't like it to have an assignment inside a collection initializer new AudioFilterByGenreScreenData(), new AudioFilterByDecadeScreenData(), new AudioFilterBySystemScreenData(), new AudioSimpleSearchScreenData(picd), }; Sorting.Sorting sortByAlbumTrack = new AudioSortByAlbumTrack(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { sortByAlbumTrack, new SortByTitle(), new AudioSortByFirstGenre(), new AudioSortByFirstArtist(), new AudioSortByAlbum(), new AudioSortByTrack(), new SortByYear(), new SortBySystem(), }; navigationData = new NavigationData(null, Consts.RES_AUDIO_VIEW_NAME, workflowStateId, workflowStateId, rootViewSpecification, filterByAlbum, availableScreens, sortByAlbumTrack) { AvailableSortings = availableSortings }; } else if (workflowStateId == Consts.WF_STATE_ID_VIDEOS_NAVIGATION_ROOT) { mode = MediaNavigationMode.Videos; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new VideoItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; ViewSpecification rootViewSpecification = new MediaLibraryQueryViewSpecification(Consts.RES_VIDEOS_VIEW_NAME, null, Consts.NECESSARY_VIDEO_MIAS, skinDependentOptionalMIATypeIDs, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; AbstractScreenData filterByGenre = new VideosFilterByGenreScreenData(); ICollection <AbstractScreenData> availableScreens = new List <AbstractScreenData> { new VideosShowItemsScreenData(picd), new VideosFilterByLanguageScreenData(), new VideosFilterByActorScreenData(), filterByGenre, // C# doesn't like it to have an assignment inside a collection initializer new VideosFilterByYearScreenData(), new VideosFilterBySystemScreenData(), new VideosSimpleSearchScreenData(picd), }; Sorting.Sorting sortByTitle = new SortByTitle(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { sortByTitle, new SortByYear(), new VideoSortByFirstGenre(), new VideoSortByDuration(), new VideoSortByDirector(), new VideoSortByFirstActor(), new VideoSortBySize(), new VideoSortByAspectRatio(), new SortBySystem(), }; navigationData = new NavigationData(null, Consts.RES_VIDEOS_VIEW_NAME, workflowStateId, workflowStateId, rootViewSpecification, filterByGenre, availableScreens, sortByTitle) { AvailableSortings = availableSortings }; } else if (workflowStateId == Consts.WF_STATE_ID_SERIES_NAVIGATION_ROOT) { mode = MediaNavigationMode.Videos; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new SeriesItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; ViewSpecification rootViewSpecification = new MediaLibraryQueryViewSpecification(Consts.RES_SERIES_VIEW_NAME, null, Consts.NECESSARY_SERIES_MIAS, skinDependentOptionalMIATypeIDs, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; AbstractScreenData filterBySeries = new SeriesFilterByNameScreenData(); ICollection <AbstractScreenData> availableScreens = new List <AbstractScreenData> { new SeriesShowItemsScreenData(picd), filterBySeries, // C# doesn't like it to have an assignment inside a collection initializer new VideosFilterByLanguageScreenData(), new SeriesFilterBySeasonScreenData(), new VideosFilterByGenreScreenData(), new VideosSimpleSearchScreenData(picd), }; Sorting.Sorting sortByEpisode = new SeriesSortByEpisode(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { sortByEpisode, new SortByTitle(), new SortByDate(), new SortBySystem(), }; navigationData = new NavigationData(null, Consts.RES_SERIES_VIEW_NAME, workflowStateId, workflowStateId, rootViewSpecification, filterBySeries, availableScreens, sortByEpisode) { AvailableSortings = availableSortings }; } else if (workflowStateId == Consts.WF_STATE_ID_MOVIES_NAVIGATION_ROOT) { mode = MediaNavigationMode.Movies; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new MovieItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; ViewSpecification rootViewSpecification = new MediaLibraryQueryViewSpecification(Consts.RES_MOVIES_VIEW_NAME, null, Consts.NECESSARY_MOVIES_MIAS, skinDependentOptionalMIATypeIDs, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; AbstractScreenData filterByGenre = new VideosFilterByGenreScreenData(); ICollection <AbstractScreenData> availableScreens = new List <AbstractScreenData> { new MoviesShowItemsScreenData(picd), new VideosFilterByActorScreenData(), filterByGenre, // C# doesn't like it to have an assignment inside a collection initializer new VideosFilterByYearScreenData(), new VideosFilterBySystemScreenData(), new VideosSimpleSearchScreenData(picd), }; Sorting.Sorting sortByTitle = new SortByTitle(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { sortByTitle, new SortByYear(), new VideoSortByFirstGenre(), new VideoSortByDuration(), new VideoSortByDirector(), new VideoSortByFirstActor(), new VideoSortBySize(), new VideoSortByAspectRatio(), new SortBySystem(), }; navigationData = new NavigationData(null, Consts.RES_MOVIES_VIEW_NAME, workflowStateId, workflowStateId, rootViewSpecification, filterByGenre, availableScreens, sortByTitle) { AvailableSortings = availableSortings }; } else if (workflowStateId == Consts.WF_STATE_ID_IMAGES_NAVIGATION_ROOT) { mode = MediaNavigationMode.Images; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => new ImageItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) }; ViewSpecification rootViewSpecification = new MediaLibraryQueryViewSpecification(Consts.RES_IMAGES_VIEW_NAME, null, Consts.NECESSARY_IMAGE_MIAS, skinDependentOptionalMIATypeIDs, true) { MaxNumItems = Consts.MAX_NUM_ITEMS_VISIBLE }; AbstractScreenData filterByYear = new ImagesFilterByYearScreenData(); ICollection <AbstractScreenData> availableScreens = new List <AbstractScreenData> { new ImagesShowItemsScreenData(picd), filterByYear, // C# doesn't like it to have an assignment inside a collection initializer new ImagesFilterBySizeScreenData(), new ImagesFilterBySystemScreenData(), new ImagesSimpleSearchScreenData(picd), }; Sorting.Sorting sortByYear = new SortByYear(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { new SortByYear(), new SortByTitle(), new ImageSortBySize(), new SortBySystem(), }; navigationData = new NavigationData(null, Consts.RES_IMAGES_VIEW_NAME, workflowStateId, workflowStateId, rootViewSpecification, filterByYear, availableScreens, sortByYear) { AvailableSortings = availableSortings }; } else { // If we were called with a supported root state, we should be either in state WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT // or WF_STATE_ID_MEDIA_BROWSE_NAVIGATION_ROOT here if (workflowStateId != Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT && workflowStateId != Consts.WF_STATE_ID_BROWSE_MEDIA_NAVIGATION_ROOT) { // Error case: We cannot handle the given state ServiceRegistration.Get <ILogger>().Warn("MediaNavigationModel: Unknown root workflow state with ID '{0}', initializing local media navigation", workflowStateId); // We simply use the local media mode as fallback for this case, so we go on workflowStateId = Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT; } mode = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? MediaNavigationMode.BrowseLocalMedia : MediaNavigationMode.BrowseMediaLibrary; IEnumerable <Guid> skinDependentOptionalMIATypeIDs = GetMediaSkinOptionalMIATypes(mode); AbstractItemsScreenData.PlayableItemCreatorDelegate picd = mi => { if (mi.Aspects.ContainsKey(AudioAspect.ASPECT_ID)) { return new AudioItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(VideoAspect.ASPECT_ID)) { return new VideoItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; if (mi.Aspects.ContainsKey(ImageAspect.ASPECT_ID)) { return new ImageItem(mi) { Command = new MethodDelegateCommand(() => PlayItemsModel.CheckQueryPlayAction(mi)) } } ; return(null); }; IEnumerable <Guid> necessaryMIATypeIDs = new Guid[] { ProviderResourceAspect.ASPECT_ID, MediaAspect.ASPECT_ID, }; IEnumerable <Guid> optionalMIATypeIDs = new Guid[] { AudioAspect.ASPECT_ID, VideoAspect.ASPECT_ID, ImageAspect.ASPECT_ID, }.Union(skinDependentOptionalMIATypeIDs); string viewName = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? Consts.RES_LOCAL_MEDIA_ROOT_VIEW_NAME : Consts.RES_BROWSE_MEDIA_ROOT_VIEW_NAME; ViewSpecification rootViewSpecification = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? new AddedRemovableMediaViewSpecificationFacade(new LocalMediaRootProxyViewSpecification(viewName, necessaryMIATypeIDs, optionalMIATypeIDs)) : new AddedRemovableMediaViewSpecificationFacade(new BrowseMediaRootProxyViewSpecification(viewName, necessaryMIATypeIDs, optionalMIATypeIDs)); // Dynamic screens remain null - browse media states don't provide dynamic filters AbstractScreenData screenData = workflowStateId == Consts.WF_STATE_ID_LOCAL_MEDIA_NAVIGATION_ROOT ? (AbstractScreenData) new LocalMediaNavigationScreenData(picd) : new BrowseMediaNavigationScreenData(picd); Sorting.Sorting browseDefaultSorting = new BrowseDefaultSorting(); ICollection <Sorting.Sorting> availableSortings = new List <Sorting.Sorting> { browseDefaultSorting, new SortByTitle(), new SortByDate(), // We could offer sortings here which are specific for one media item type but which will cope with all three item types (and sort items of the three types in a defined order) }; navigationData = new NavigationData(null, viewName, workflowStateId, workflowStateId, rootViewSpecification, screenData, null, browseDefaultSorting) { AvailableSortings = availableSortings }; } result.Add(Consts.KEY_NAVIGATION_MODE, mode); result.Add(Consts.KEY_NAVIGATION_DATA, navigationData); return(result); }