Add support for directories when scanning documents directory.

VLC_add_folders_in_Documents.diff

diff --git a/Sources/VLCAppDelegate.m b/Sources/VLCAppDelegate.m
index ef5f12f..e80422b 100644
--- a/Sources/VLCAppDelegate.m
+++ b/Sources/VLCAppDelegate.m
@@ -278,16 +278,28 @@
 - (void)updateMediaList
 {
     NSString *directoryPath = [self directoryPath];
-    NSArray *foundFiles = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:directoryPath error:nil];
-    NSMutableArray *filePaths = [NSMutableArray arrayWithCapacity:[foundFiles count]];
+    NSMutableArray *foundFiles = [NSMutableArray arrayWithObject:@""];
+    NSMutableArray *filePaths = [NSMutableArray array];
     NSURL *fileURL;
-    for (NSString *fileName in foundFiles) {
+    while (foundFiles.count) {
+        NSString *fileName = foundFiles.firstObject;
+        NSString *filePath = [directoryPath stringByAppendingPathComponent:fileName];
+        [foundFiles removeObject:fileName];
+        
         if ([fileName isSupportedMediaFormat] || [fileName isSupportedAudioMediaFormat]) {
-            [filePaths addObject:[directoryPath stringByAppendingPathComponent:fileName]];
+            [filePaths addObject:filePath];
 
             /* exclude media files from backup (QA1719) */
-            fileURL = [NSURL fileURLWithPath:[directoryPath stringByAppendingPathComponent:fileName]];
+            fileURL = [NSURL fileURLWithPath:filePath];
             [fileURL setResourceValue:@YES forKey:NSURLIsExcludedFromBackupKey error:nil];
+        } else {
+
+            BOOL isDirectory = NO;
+            BOOL exists = [[NSFileManager defaultManager] fileExistsAtPath:filePath isDirectory:&isDirectory];
+            // add folders
+            if (exists && isDirectory) {
+                [foundFiles addObjectsFromArray:[[NSFileManager defaultManager] contentsOfDirectoryAtPath:filePath error:nil]];
+            }
         }
     }
     [[MLMediaLibrary sharedMediaLibrary] addFilePaths:filePaths];

This fix is too simple, the user intention of a folder is lost. We should create logical folders in the playlist for any added folders.

Update patch. It does work now for adding subfolders.
TODO for improved folder support:

• Automatically add folders all path components behind "Documents" in [MLMediaLibrary addFilePath:]
• Add support for folder hierarchies to MLLabel

This is cool stuff. Does it work with the latest version of MediaLibraryKit, which includes slightly different behavior regarding file path handling? Let me know, if I can be of any help there.

I don't see any recents change in MediaLibraryKit regarding file path handling.
This patch works with http://git.videolan.org/?p=MediaLibraryKit.git;a=commit;h=eb2587e0c2220ce6766762e4599f3ddbfe86996b.
I've sent a full patch to Caro for testing and pushing.