ArtistModel.swift 3.6 KB

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  1. /*****************************************************************************
  2. * ArtistModel.swift
  3. *
  4. * Copyright © 2018 VLC authors and VideoLAN
  5. * Copyright © 2018 Videolabs
  6. *
  7. * Authors: Soomin Lee <bubu@mikan.io>
  8. *
  9. * Refer to the COPYING file of the official project for license.
  10. *****************************************************************************/
  11. class ArtistModel: AudioCollectionModel {
  12. typealias MLType = VLCMLArtist
  13. var sortModel = SortModel([.alpha])
  14. var updateView: (() -> Void)?
  15. var files = [VLCMLArtist]()
  16. var cellType: BaseCollectionViewCell.Type { return MediaCollectionViewCell.self }
  17. var medialibrary: MediaLibraryService
  18. var indicatorName: String = NSLocalizedString("ARTISTS", comment: "")
  19. required init(medialibrary: MediaLibraryService) {
  20. self.medialibrary = medialibrary
  21. medialibrary.addObserver(self)
  22. files = medialibrary.artists()
  23. }
  24. func append(_ item: VLCMLArtist) {
  25. files.append(item)
  26. }
  27. }
  28. // MARK: - Sort
  29. extension ArtistModel {
  30. func sort(by criteria: VLCMLSortingCriteria, desc: Bool) {
  31. files = medialibrary.artists(sortingCriteria: criteria, desc: desc)
  32. sortModel.currentSort = criteria
  33. sortModel.desc = desc
  34. updateView?()
  35. }
  36. }
  37. // MARK: - Edit
  38. extension ArtistModel: EditableMLModel {
  39. func editCellType() -> BaseCollectionViewCell.Type {
  40. return MediaEditCell.self
  41. }
  42. }
  43. // MARK: - Search
  44. extension VLCMLArtist: SearchableMLModel {
  45. func contains(_ searchString: String) -> Bool {
  46. return name.lowercased().contains(searchString)
  47. }
  48. }
  49. // MARK: - MediaLibraryObserver
  50. extension ArtistModel: MediaLibraryObserver {
  51. func medialibrary(_ medialibrary: MediaLibraryService, didAddArtists artists: [VLCMLArtist]) {
  52. artists.forEach({ append($0) })
  53. updateView?()
  54. }
  55. func medialibrary(_ medialibrary: MediaLibraryService, didDeleteArtistsWithIds artistsIds: [NSNumber]) {
  56. files.removeAll {
  57. artistsIds.contains(NSNumber(value: $0.identifier()))
  58. }
  59. updateView?()
  60. }
  61. }
  62. extension VLCMLArtist: MediaCollectionModel {
  63. func sortModel() -> SortModel? {
  64. return SortModel([.alpha])
  65. }
  66. func files() -> [VLCMLMedia]? {
  67. return tracks()
  68. }
  69. func title() -> String {
  70. return name
  71. }
  72. }
  73. extension VLCMLArtist {
  74. func numberOfTracksString() -> String {
  75. let tracksString = tracks()?.count == 1 ? NSLocalizedString("TRACK", comment: "") : NSLocalizedString("TRACKS", comment: "")
  76. return String(format: tracksString, tracks()?.count ?? 0)
  77. }
  78. @objc func thumbnail() -> UIImage? {
  79. var image = UIImage(contentsOfFile: artworkMRL()?.path ?? "")
  80. if image == nil {
  81. for track in files() ?? [] where track.isThumbnailGenerated() {
  82. image = UIImage(contentsOfFile: track.thumbnail()?.path ?? "")
  83. break
  84. }
  85. }
  86. if image == nil {
  87. let isDarktheme = PresentationTheme.current == PresentationTheme.darkTheme
  88. image = isDarktheme ? UIImage(named: "artist-placeholder-dark") : UIImage(named: "artist-placeholder-white")
  89. }
  90. return image
  91. }
  92. func artistName() -> String {
  93. if identifier() == UnknownArtistID {
  94. return NSLocalizedString("UNKNOWN_ARTIST", comment: "")
  95. } else if identifier() == VariousArtistID {
  96. return NSLocalizedString("VARIOUS_ARTIST", comment: "")
  97. } else {
  98. return name
  99. }
  100. }
  101. func accessibilityText() -> String? {
  102. return artistName() + " " + numberOfTracksString()
  103. }
  104. }