VLCPlaylistCollectionViewCell.m 21 KB

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  1. /*****************************************************************************
  2. * VLCPlaylistCollectionViewCell.m
  3. * VLC for iOS
  4. *****************************************************************************
  5. * Copyright (c) 2013-2015 VideoLAN. All rights reserved.
  6. * $Id$
  7. *
  8. * Authors: Felix Paul Kühne <fkuehne # videolan.org>
  9. * Tamas Timar <ttimar.vlc # gmail.com>
  10. * Gleb Pinigin <gpinigin # gmail.com>
  11. * Carola Nitz <nitz.carola # googlemail.com>
  12. *
  13. * Refer to the COPYING file of the official project for license.
  14. *****************************************************************************/
  15. #import "VLCPlaylistCollectionViewCell.h"
  16. #import "VLCPlaylistViewController.h"
  17. #import "VLCThumbnailsCache.h"
  18. @interface VLCPlaylistCollectionViewCell ()
  19. {
  20. UIImage *_checkboxEmptyImage;
  21. UIImage *_checkboxImage;
  22. }
  23. @end
  24. @implementation VLCPlaylistCollectionViewCell
  25. - (void)dealloc
  26. {
  27. [self _removeObserver];
  28. }
  29. - (void)awakeFromNib
  30. {
  31. if (SYSTEM_RUNS_IOS7_OR_LATER) {
  32. _checkboxEmptyImage = [UIImage imageNamed:@"checkboxEmpty"];
  33. _checkboxImage = [UIImage imageNamed:@"checkbox"];
  34. } else {
  35. _checkboxEmptyImage = [UIImage imageNamed:@"checkbox-legacy-empty"];
  36. _checkboxImage = [UIImage imageNamed:@"checkbox-legacy"];
  37. }
  38. self.metaDataLabel.hidden = YES;
  39. }
  40. - (void)setEditing:(BOOL)editing animated:(BOOL)animated
  41. {
  42. self.isSelectedView.hidden = !editing;
  43. if (!([_mediaObject isKindOfClass:[MLFile class]] && [_mediaObject.labels count] > 0))
  44. [self shake:editing];
  45. [self selectionUpdate];
  46. [self _updatedDisplayedInformationForKeyPath:@"editing"];
  47. }
  48. - (void)selectionUpdate
  49. {
  50. if (self.selected)
  51. self.isSelectedView.image = _checkboxImage;
  52. else
  53. self.isSelectedView.image = _checkboxEmptyImage;
  54. }
  55. - (void)shake:(BOOL)shake
  56. {
  57. if (shake) {
  58. [UIView animateWithDuration:0.3 animations:^{
  59. self.contentView.transform = CGAffineTransformMakeScale(0.9f, 0.9f);
  60. }];
  61. CAKeyframeAnimation* animation = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation.z"];
  62. CGFloat shakeAngle = 0.02f;
  63. animation.values = @[@(-shakeAngle), @(shakeAngle)];
  64. animation.autoreverses = YES;
  65. animation.duration = 0.125;
  66. animation.repeatCount = HUGE_VALF;
  67. [[self layer] addAnimation:animation forKey:@"shakeAnimation"];
  68. self.contentView.layer.cornerRadius = 10.0;
  69. self.contentView.clipsToBounds = YES;
  70. } else {
  71. [UIView animateWithDuration:0.3 animations:^{
  72. self.contentView.transform = CGAffineTransformMakeScale(1.0f, 1.0f);
  73. self.contentView.layer.cornerRadius = 0.0;
  74. self.contentView.clipsToBounds = NO;
  75. }];
  76. [[self layer] removeAnimationForKey:@"shakeAnimation"];
  77. }
  78. }
  79. - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
  80. {
  81. [self _updatedDisplayedInformationForKeyPath:keyPath];
  82. }
  83. - (void)_removeObserver
  84. {
  85. if ([_mediaObject isKindOfClass:[MLLabel class]])
  86. [_mediaObject removeObserver:self forKeyPath:@"name"];
  87. else if ([_mediaObject isKindOfClass:[MLShow class]])
  88. [_mediaObject removeObserver:self forKeyPath:@"episodes"];
  89. else if ([_mediaObject isKindOfClass:[MLShowEpisode class]]) {
  90. [_mediaObject removeObserver:self forKeyPath:@"name"];
  91. [_mediaObject removeObserver:self forKeyPath:@"files"];
  92. [_mediaObject removeObserver:self forKeyPath:@"artworkURL"];
  93. [_mediaObject removeObserver:self forKeyPath:@"unread"];
  94. } else if ([_mediaObject isKindOfClass:[MLAlbum class]]) {
  95. [_mediaObject removeObserver:self forKeyPath:@"name"];
  96. [_mediaObject removeObserver:self forKeyPath:@"tracks"];
  97. } else if ([_mediaObject isKindOfClass:[MLFile class]]) {
  98. [_mediaObject removeObserver:self forKeyPath:@"computedThumbnail"];
  99. [_mediaObject removeObserver:self forKeyPath:@"lastPosition"];
  100. [_mediaObject removeObserver:self forKeyPath:@"duration"];
  101. [_mediaObject removeObserver:self forKeyPath:@"fileSizeInBytes"];
  102. [_mediaObject removeObserver:self forKeyPath:@"title"];
  103. [_mediaObject removeObserver:self forKeyPath:@"thumbnailTimeouted"];
  104. [_mediaObject removeObserver:self forKeyPath:@"unread"];
  105. [_mediaObject removeObserver:self forKeyPath:@"albumTrackNumber"];
  106. [_mediaObject removeObserver:self forKeyPath:@"album"];
  107. [_mediaObject removeObserver:self forKeyPath:@"artist"];
  108. [_mediaObject removeObserver:self forKeyPath:@"genre"];
  109. [(MLFile*)_mediaObject didHide];
  110. }
  111. }
  112. - (void)_addObserver
  113. {
  114. if ([_mediaObject isKindOfClass:[MLLabel class]])
  115. [_mediaObject addObserver:self forKeyPath:@"name" options:0 context:nil];
  116. else if ([_mediaObject isKindOfClass:[MLShow class]])
  117. [_mediaObject addObserver:self forKeyPath:@"episodes" options:0 context:nil];
  118. else if ([_mediaObject isKindOfClass:[MLShowEpisode class]]) {
  119. [_mediaObject addObserver:self forKeyPath:@"name" options:0 context:nil];
  120. [_mediaObject addObserver:self forKeyPath:@"files" options:0 context:nil];
  121. [_mediaObject addObserver:self forKeyPath:@"artworkURL" options:0 context:nil];
  122. [_mediaObject addObserver:self forKeyPath:@"unread" options:0 context:nil];
  123. } else if ([_mediaObject isKindOfClass:[MLAlbum class]]) {
  124. [_mediaObject addObserver:self forKeyPath:@"name" options:0 context:nil];
  125. [_mediaObject addObserver:self forKeyPath:@"tracks" options:0 context:nil];
  126. } else if ([_mediaObject isKindOfClass:[MLFile class]]) {
  127. [_mediaObject addObserver:self forKeyPath:@"computedThumbnail" options:0 context:nil];
  128. [_mediaObject addObserver:self forKeyPath:@"lastPosition" options:0 context:nil];
  129. [_mediaObject addObserver:self forKeyPath:@"duration" options:0 context:nil];
  130. [_mediaObject addObserver:self forKeyPath:@"fileSizeInBytes" options:0 context:nil];
  131. [_mediaObject addObserver:self forKeyPath:@"title" options:0 context:nil];
  132. [_mediaObject addObserver:self forKeyPath:@"thumbnailTimeouted" options:0 context:nil];
  133. [_mediaObject addObserver:self forKeyPath:@"unread" options:0 context:nil];
  134. [_mediaObject addObserver:self forKeyPath:@"albumTrackNumber" options:0 context:nil];
  135. [_mediaObject addObserver:self forKeyPath:@"album" options:0 context:nil];
  136. [_mediaObject addObserver:self forKeyPath:@"artist" options:0 context:nil];
  137. [_mediaObject addObserver:self forKeyPath:@"genre" options:0 context:nil];
  138. [(MLFile*)_mediaObject willDisplay];
  139. }
  140. }
  141. - (void)setMediaObject:(MLFile *)mediaObject
  142. {
  143. if (_mediaObject != mediaObject) {
  144. [self _removeObserver];
  145. _mediaObject = mediaObject;
  146. // prevent the cell from recycling the current snap for random contents
  147. self.thumbnailView.image = nil;
  148. [self _addObserver];
  149. }
  150. [self _updatedDisplayedInformationForKeyPath:nil];
  151. }
  152. - (void)_updatedDisplayedInformationForKeyPath:(NSString *)keyPath
  153. {
  154. self.thumbnailView.contentMode = UIViewContentModeScaleAspectFill;
  155. if ([self.mediaObject isKindOfClass:[MLFile class]]) {
  156. MLFile *mediaObject = self.mediaObject;
  157. [self _configureForMLFile:mediaObject];
  158. if (([keyPath isEqualToString:@"computedThumbnail"] || !keyPath) || (!self.thumbnailView.image && [keyPath isEqualToString:@"editing"]))
  159. self.thumbnailView.image = [VLCThumbnailsCache thumbnailForMediaFile:mediaObject];
  160. } else if ([self.mediaObject isKindOfClass:[MLLabel class]]) {
  161. MLLabel *mediaObject = (MLLabel *)self.mediaObject;
  162. [self _configureForFolder:mediaObject];
  163. if ([keyPath isEqualToString:@"files"] || !keyPath || (!self.thumbnailView.image && [keyPath isEqualToString:@"editing"])) {
  164. if (mediaObject.files.count != 0)
  165. self.thumbnailView.image = [VLCThumbnailsCache thumbnailForLabel:mediaObject];
  166. }
  167. } else if ([self.mediaObject isKindOfClass:[MLAlbum class]]) {
  168. MLAlbum *mediaObject = (MLAlbum *)self.mediaObject;
  169. [self _configureForAlbum:mediaObject];
  170. if ([keyPath isEqualToString:@"computedThumbnail"] || !keyPath || (!self.thumbnailView.image && [keyPath isEqualToString:@"editing"])) {
  171. MLFile *anyFileFromAnyTrack = [mediaObject.tracks.anyObject files].anyObject;
  172. self.thumbnailView.image = [VLCThumbnailsCache thumbnailForMediaFile:anyFileFromAnyTrack];
  173. }
  174. } else if ([self.mediaObject isKindOfClass:[MLAlbumTrack class]]) {
  175. MLAlbumTrack *mediaObject = (MLAlbumTrack *)self.mediaObject;
  176. [self _configureForAlbumTrack:mediaObject];
  177. if ([keyPath isEqualToString:@"computedThumbnail"] || !keyPath || !self.thumbnailView.image) {
  178. MLFile *anyFileFromTrack = mediaObject.files.anyObject;
  179. self.thumbnailView.image = [VLCThumbnailsCache thumbnailForMediaFile:anyFileFromTrack];
  180. }
  181. } else if ([self.mediaObject isKindOfClass:[MLShow class]]) {
  182. MLShow *mediaObject = (MLShow *)self.mediaObject;
  183. [self _configureForShow:mediaObject];
  184. if ([keyPath isEqualToString:@"computedThumbnail"] || [keyPath isEqualToString:@"episodes"] || !keyPath || (!self.thumbnailView.image && [keyPath isEqualToString:@"editing"])) {
  185. self.thumbnailView.image = [VLCThumbnailsCache thumbnailForShow:mediaObject];
  186. }
  187. } else if ([self.mediaObject isKindOfClass:[MLShowEpisode class]]) {
  188. MLShowEpisode *mediaObject = (MLShowEpisode *)self.mediaObject;
  189. [self _configureForShowEpisode:mediaObject];
  190. if ([keyPath isEqualToString:@"computedThumbnail"] || !keyPath || !self.thumbnailView.image) {
  191. MLFile *anyFileFromEpisode = mediaObject.files.anyObject;
  192. self.thumbnailView.image = [VLCThumbnailsCache thumbnailForMediaFile:anyFileFromEpisode];
  193. }
  194. }
  195. [self setNeedsDisplay];
  196. }
  197. #pragma mark - presentation
  198. - (void)_configureForShow:(MLShow *)show
  199. {
  200. self.titleLabel.text = show.name;
  201. NSUInteger count = show.episodes.count;
  202. NSString *string = @"";
  203. if (show.releaseYear)
  204. string = [NSString stringWithFormat:@"%@ — ", show.releaseYear];
  205. self.subtitleLabel.text = [string stringByAppendingString:[NSString stringWithFormat:(count > 1) ? NSLocalizedString(@"LIBRARY_EPISODES", nil) : NSLocalizedString(@"LIBRARY_SINGLE_EPISODE", nil), count, show.unreadEpisodes.count]];
  206. self.mediaIsUnreadView.hidden = YES;
  207. self.progressView.hidden = YES;
  208. self.folderIconView.image = [UIImage imageNamed:@"tvShow"];
  209. self.folderIconView.hidden = NO;
  210. }
  211. - (void)_configureForAlbumTrack:(MLAlbumTrack *)albumTrack
  212. {
  213. MLFile *anyFileFromTrack = albumTrack.files.anyObject;
  214. self.subtitleLabel.text = [NSString stringWithFormat:@"%@ — %@ — %@", albumTrack.artist, [NSString stringWithFormat:NSLocalizedString(@"LIBRARY_TRACK_N", nil), albumTrack.trackNumber.intValue], [VLCTime timeWithNumber:[anyFileFromTrack duration]]];
  215. self.titleLabel.text = albumTrack.title;
  216. [self _showPositionOfItem:anyFileFromTrack];
  217. self.folderIconView.hidden = YES;
  218. }
  219. - (void)_configureForShowEpisode:(MLShowEpisode *)showEpisode
  220. {
  221. self.titleLabel.text = showEpisode.name;
  222. MLFile *anyFileFromEpisode = showEpisode.files.anyObject;
  223. if (self.titleLabel.text.length < 1) {
  224. self.titleLabel.text = [NSString stringWithFormat:@"S%02dE%02d", showEpisode.seasonNumber.intValue, showEpisode.episodeNumber.intValue];
  225. self.subtitleLabel.text = [NSString stringWithFormat:@"%@", [VLCTime timeWithNumber:[anyFileFromEpisode duration]]];
  226. } else
  227. self.subtitleLabel.text = [NSString stringWithFormat:@"S%02dE%02d — %@", showEpisode.seasonNumber.intValue, showEpisode.episodeNumber.intValue, [VLCTime timeWithNumber:[anyFileFromEpisode duration]]];
  228. [self _showPositionOfItem:anyFileFromEpisode];
  229. self.folderIconView.hidden = YES;
  230. }
  231. - (void)_configureForAlbum:(MLAlbum *)album
  232. {
  233. self.titleLabel.text = album.name;
  234. MLAlbumTrack *anyTrack = [album.tracks anyObject];
  235. NSUInteger count = album.tracks.count;
  236. NSMutableString *string = [[NSMutableString alloc] init];
  237. if (anyTrack) {
  238. if (anyTrack.artist.length > 0) {
  239. [string appendString:anyTrack.artist];
  240. [string appendString:@" — "];
  241. }
  242. }
  243. [string appendString:[NSString stringWithFormat:(count > 1) ? NSLocalizedString(@"LIBRARY_TRACKS", nil) : NSLocalizedString(@"LIBRARY_SINGLE_TRACK", nil), count]];
  244. if (album.releaseYear.length > 0)
  245. [string appendFormat:@" — %@", album.releaseYear];
  246. self.subtitleLabel.text = string;
  247. self.mediaIsUnreadView.hidden = YES;
  248. self.progressView.hidden = YES;
  249. self.folderIconView.hidden = YES;
  250. }
  251. - (void)_configureForFolder:(MLLabel *)label
  252. {
  253. self.titleLabel.text = label.name;
  254. NSUInteger count = label.files.count;
  255. self.subtitleLabel.text = [NSString stringWithFormat:(count == 1) ? NSLocalizedString(@"LIBRARY_SINGLE_TRACK", nil) : NSLocalizedString(@"LIBRARY_TRACKS", nil), count];
  256. self.mediaIsUnreadView.hidden = YES;
  257. self.progressView.hidden = YES;
  258. self.folderIconView.image = [UIImage imageNamed:@"folderIcon"];
  259. self.folderIconView.hidden = NO;
  260. }
  261. - (void)_configureForMLFile:(MLFile *)mediaFile
  262. {
  263. if (mediaFile.isAlbumTrack) {
  264. NSString *string = @"";
  265. if (mediaFile.albumTrack.artist)
  266. string = [NSString stringWithFormat:@"%@ — ", mediaFile.albumTrack.artist];
  267. else if (mediaFile.albumTrack.album.name)
  268. string = [NSString stringWithFormat:@"%@ — ", mediaFile.albumTrack.artist];
  269. self.titleLabel.text = [string stringByAppendingString:(mediaFile.albumTrack.title.length > 1) ? mediaFile.albumTrack.title : mediaFile.title];
  270. } else
  271. self.titleLabel.text = mediaFile.title;
  272. VLCPlaylistViewController *delegate = (VLCPlaylistViewController*)self.collectionView.delegate;
  273. if (delegate.isEditing)
  274. self.subtitleLabel.text = [NSString stringWithFormat:@"%@ — %@", [VLCTime timeWithNumber:[mediaFile duration]], [NSByteCountFormatter stringFromByteCount:[mediaFile fileSizeInBytes] countStyle:NSByteCountFormatterCountStyleFile]];
  275. else {
  276. self.subtitleLabel.text = [NSString stringWithFormat:@"%@", [VLCTime timeWithNumber:[mediaFile duration]]];
  277. if (mediaFile.videoTrack) {
  278. NSString *width = [[mediaFile videoTrack] valueForKey:@"width"];
  279. NSString *height = [[mediaFile videoTrack] valueForKey:@"height"];
  280. if (width.intValue > 0 && height.intValue > 0)
  281. self.subtitleLabel.text = [self.subtitleLabel.text stringByAppendingFormat:@" — %@x%@", width, height];
  282. }
  283. }
  284. [self _showPositionOfItem:mediaFile];
  285. self.folderIconView.hidden = YES;
  286. }
  287. - (void)_showPositionOfItem:(MLFile *)mediaLibraryFile
  288. {
  289. CGFloat position = mediaLibraryFile.lastPosition.floatValue;
  290. if (SYSTEM_RUNS_IOS7_OR_LATER) {
  291. CGFloat duration = mediaLibraryFile.duration.floatValue;
  292. if (position > .05f && position < .95f && (duration * position - duration) < -60000) {
  293. [(UITextView*)self.mediaIsUnreadView setText:[NSString stringWithFormat:NSLocalizedString(@"LIBRARY_MINUTES_LEFT", nil), [[VLCTime timeWithInt:(duration * position - duration)] minuteStringValue]]];
  294. self.mediaIsUnreadView.hidden = NO;
  295. } else if (mediaLibraryFile.unread.intValue) {
  296. [(UILabel *)self.mediaIsUnreadView setText:[NSLocalizedString(@"NEW", nil) capitalizedStringWithLocale:[NSLocale currentLocale]]];
  297. self.mediaIsUnreadView.hidden = NO;
  298. } else
  299. self.mediaIsUnreadView.hidden = YES;
  300. } else {
  301. self.progressView.progress = position;
  302. self.progressView.hidden = ((position < .1f) || (position > .95f)) ? YES : NO;
  303. [self.progressView setNeedsDisplay];
  304. self.mediaIsUnreadView.hidden = !mediaLibraryFile.unread.intValue;
  305. }
  306. }
  307. - (void)showMetadata:(BOOL)showMeta
  308. {
  309. if (showMeta) {
  310. NSMutableString *mediaInfo = [[NSMutableString alloc] init];
  311. MLFile *theFile;
  312. if ([self.mediaObject isKindOfClass:[MLFile class]])
  313. theFile = self.mediaObject;
  314. else if ([self.mediaObject isKindOfClass:[MLShowEpisode class]])
  315. theFile = [[(MLShowEpisode *)self.mediaObject files]anyObject];
  316. else if ([self.mediaObject isKindOfClass:[MLAlbumTrack class]])
  317. theFile = [[(MLAlbumTrack *)self.mediaObject files]anyObject];
  318. if (!theFile) {
  319. self.metaDataLabel.hidden = YES;
  320. return;
  321. }
  322. NSMutableArray *videoTracks = [[NSMutableArray alloc] init];
  323. NSMutableArray *audioTracks = [[NSMutableArray alloc] init];
  324. NSMutableArray *spuTracks = [[NSMutableArray alloc] init];
  325. NSArray *tracks = [[theFile tracks] allObjects];
  326. NSUInteger trackCount = tracks.count;
  327. for (NSUInteger x = 0; x < trackCount; x++) {
  328. NSManagedObject *track = tracks[x];
  329. NSString *trackEntityName = [[track entity] name];
  330. if ([trackEntityName isEqualToString:@"VideoTrackInformation"])
  331. [videoTracks addObject:track];
  332. else if ([trackEntityName isEqualToString:@"AudioTrackInformation"])
  333. [audioTracks addObject:track];
  334. else if ([trackEntityName isEqualToString:@"SubtitlesTrackInformation"])
  335. [spuTracks addObject:track];
  336. }
  337. /* print video info */
  338. trackCount = videoTracks.count;
  339. if (trackCount != 1)
  340. [mediaInfo appendFormat:@"%lu video tracks", (unsigned long)trackCount];
  341. else
  342. [mediaInfo appendString:@"1 video track"];
  343. if (trackCount > 0) {
  344. [mediaInfo appendString:@" ("];
  345. for (NSUInteger x = 0; x < trackCount; x++) {
  346. int fourcc = [[videoTracks[x] valueForKey:@"codec"] intValue];
  347. if (x != 0)
  348. [mediaInfo appendFormat:@", %4.4s", (char *)&fourcc];
  349. else
  350. [mediaInfo appendFormat:@"%4.4s", (char *)&fourcc];
  351. }
  352. [mediaInfo appendString:@")"];
  353. }
  354. [mediaInfo appendString:@"\n\n"];
  355. /* print audio info */
  356. trackCount = audioTracks.count;
  357. if (trackCount != 1)
  358. [mediaInfo appendFormat:@"%lu audio tracks", (unsigned long)trackCount];
  359. else
  360. [mediaInfo appendString:@"1 audio track"];
  361. if (trackCount > 0) {
  362. [mediaInfo appendString:@":\n"];
  363. for (NSUInteger x = 0; x < trackCount; x++) {
  364. NSManagedObject *track = audioTracks[x];
  365. int fourcc = [[track valueForKey:@"codec"] intValue];
  366. if (x != 0)
  367. [mediaInfo appendFormat:@", %4.4s", (char *)&fourcc];
  368. else
  369. [mediaInfo appendFormat:@"%4.4s", (char *)&fourcc];
  370. int channelNumber = [[track valueForKey:@"channelsNumber"] intValue];
  371. NSString *language = [track valueForKey:@"language"];
  372. int bitrate = [[track valueForKey:@"bitrate"] intValue];
  373. if (channelNumber != 0 || language != nil || bitrate > 0) {
  374. [mediaInfo appendString:@" ["];
  375. if (bitrate > 0)
  376. [mediaInfo appendFormat:@"%i kbit/s", bitrate / 1024];
  377. if (channelNumber > 0) {
  378. if (bitrate > 0)
  379. [mediaInfo appendString:@", "];
  380. if (channelNumber == 1)
  381. [mediaInfo appendString:@"MONO"];
  382. else if (channelNumber == 2)
  383. [mediaInfo appendString:@"STEREO"];
  384. else
  385. [mediaInfo appendString:@"MULTI-CHANNEL"];
  386. }
  387. if (language != nil) {
  388. if (channelNumber > 0 || bitrate > 0)
  389. [mediaInfo appendString:@", "];
  390. [mediaInfo appendString:[language uppercaseString]];
  391. }
  392. [mediaInfo appendString:@"]"];
  393. }
  394. }
  395. }
  396. [mediaInfo appendString:@"\n\n"];
  397. /* SPU */
  398. trackCount = spuTracks.count;
  399. if (trackCount != 1)
  400. [mediaInfo appendFormat:@"%lu subtitles tracks", (unsigned long)trackCount];
  401. else
  402. [mediaInfo appendString:@"1 subtitles track"];
  403. if (trackCount > 0) {
  404. [mediaInfo appendString:@" ("];
  405. for (NSUInteger x = 0; x < trackCount; x++) {
  406. NSString *language = [spuTracks[x] valueForKey:@"language"];
  407. if (language) {
  408. if (x != 0)
  409. [mediaInfo appendFormat:@", %@", [language uppercaseString]];
  410. else
  411. [mediaInfo appendString:[language uppercaseString]];
  412. }
  413. }
  414. [mediaInfo appendString:@")"];
  415. }
  416. self.metaDataLabel.text = mediaInfo;
  417. videoTracks = audioTracks = spuTracks = nil;
  418. }
  419. void (^animationBlock)() = ^() {
  420. self.metaDataLabel.hidden = !showMeta;
  421. };
  422. void (^completionBlock)(BOOL finished) = ^(BOOL finished) {
  423. self.metaDataLabel.hidden = !showMeta;
  424. };
  425. NSTimeInterval animationDuration = .2;
  426. [UIView animateWithDuration:animationDuration animations:animationBlock completion:completionBlock];
  427. }
  428. - (BOOL)showsMetaData
  429. {
  430. return !self.metaDataLabel.hidden;
  431. }
  432. @end