objective c - Always appending file extensions in NSDocument -



objective c - Always appending file extensions in NSDocument -

what best way ensure file saved disk (or icloud) contains default file extension our document format in nsdocument based cocoa app?

background: users can load legacy files app still utilize type-creator-codes.

with auto-saving enabled in our app need create sure file has file extension added it's written disk (following kind of changes) our cocoa app - or app won't able open (with neither type-creator-code nor file extension).

if got right i'd overwrite nsdocumentcontroller's open method

- (void)opendocumentwithcontentsofurl:(nsurl *)url display:(bool)displaydocument completionhandler:(void (^)(nsdocument *document, bool documentwasalreadyopen, nserror *error))completionhandler { if(!url.pathextension isequaltostring:@"xyz") url = url urlbyappendingpathextension:@"xyz"]; [super opendocumentwithcontentsofurl:url display:displaydocument completionhandler:completionhandler]; }

note: written inline

objective-c cocoa file-type nsdocument nsapplication

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