Removing Application-Created Items

FROM : Andrew Merenbach
DATE : Sun Nov 11 16:43:07 2007

Hi, all,

I am working on a program that creates a standard preferences plist, a 
subdirectory under Application Support, and a folder for auxiliary 
data that is downloaded (this last one is placed at the top level of 
the user's home directory).  I had a couple of questions:

1. It valid to set up a menu item, for user convenience, to "reset" 
the program and move any or all of these to the Trash?  I get the 
feeling that the answer is No on the first two items, but I'm not sure 
about the last one.  If the answer to these are "yes, if the files/
directories are in such-and-such a location," then what sort of 
location would be valid?

2. I have tried to remove a subdirectory of the auxiliary-downloads 
directory -- this subdirectory being named ".incoming" (with a period 
at the beginning) -- using the following method, but I get an error. 
Is this an example of sandboxing (about which I know very little), and 
if so, what are my options (assuming that I should)?  Note that this 
method worked perfectly, as far as I can figure, on Tiger.  (I just 
recently updated to Leopard and have changed nothing in the following 
method.)

+ (BOOL)deleteFileAtPath:(NSString *)path {
   BOOL success = NO;
   
   // Moves 'path' to the trash, a la NSWorkspace.
   if ([[[self class] sharedWorkspace] 
performFileOperation:NSWorkspaceRecycleOperation
       source:[path stringByDeletingLastPathComponent]
       destination:@""
       files:[NSArray arrayWithObject:[path lastPathComponent]]
       tag:0])
   {
       success = YES;
   }

   return success;
}

Cheers,
   Andrew