This is how I have my code set up: an Objective-C protocol that has a class function that returns an NSArray of UTIs that it can handle, and a member function that handles the file type:
@protocol PcsxrFileHandle <NSObject> + (NSArray *)utisCanHandle; - (BOOL)handleFile:(NSString *)theFile; @end However, as my code is currently set up, the UTIs are used in a few special cases and are not called in determining what UTI opens what file. The code is set up like so: - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename { NSString *utiFile = [[NSWorkspace sharedWorkspace] typeOfFile:filename error:nil]; NSObject<PcsxrFileHandle> *hand = nil; BOOL isHandled = NO; if(UTTypeEqual(CFSTR("com.codeplex.pcsxr.plugin"), (CFStringRef)utiFile)) { hand = [[PcsxrPluginHandler alloc] init]; isHandled = [hand handleFile:filename]; } else if(UTTypeEqual(CFSTR("com.codeplex.pcsxr.memcard"), (CFStringRef)utiFile)) { hand = [[PcsxrMemCardHandler alloc] init]; isHandled = [hand handleFile:filename]; } else if(UTTypeEqual(CFSTR("com.codeplex.pcsxr.freeze"), (CFStringRef)utiFile)) { hand = [[PcsxrFreezeStateHandler alloc] init]; isHandled = [hand handleFile:filename]; } else if(UTTypeEqual(CFSTR("com.alcohol-soft.mdfdisc"), (CFStringRef)utiFile) || UTTypeEqual(CFSTR("com.apple.disk-image-ndif"), (CFStringRef)utiFile) || UTTypeEqual(CFSTR("public.iso-image"), (CFStringRef)utiFile) || UTTypeEqual(CFSTR("com.codeplex.pcsxr.cuefile"), (CFStringRef)utiFile)) { hand = [[PcsxrDiscHandler alloc] init]; isHandled = [hand handleFile:HandleBinCue(filename)]; } if (hand) [hand release]; return isHandled; } The PcsxrPluginHandler, PcsxrMemCardHandler, PcsxrFreezeStateHandler, and PcsxrDiscHandler all implement the PcsxrFileHandle protocol. Is there a way to put classes into some sort of array to go through and check if the UTI of a file matches up to any of the UTIs that the class can handle? _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com