On Jan 24, 2014, at 5:53 PM, SevenBits <sevenbitst...@gmail.com> wrote:
> On Jan 24, 2014, at 4:49 PM, Charles Srstka <cocoa...@charlessoft.com> wrote: > >> On Jan 24, 2014, at 1:25 PM, SevenBits <sevenbitst...@gmail.com> wrote: >> >>> I personally hate this, especially if your app reads file types other apps >>> share with you. For instance, one of my programs opens ISO files, and one >>> user emailed to tell me my app was opening every time he clicked on it. >>> Now, it was his fault, as he set the file association, but he blamed me. >>> >>> Users can be so annoying sometimes. >> >> Not necessarily the user's fault; I've seen it happen often that >> LaunchServices just decides to make some other app the default, even though >> there's an OS-provided app that really *should* remain the default until >> someone explicitly changes it. This is particularly bad for the apps that >> live in /System/Library/CoreServices (like DiskImageMounter, in your ISO >> example), as some of those seem to be still using CFBundleTypeExtensions in >> their CFBundleDocumentTypes dictionary instead of a UTI, and LS always seems >> to prefer apps that use UTI over ones that don't if no explicit default is >> set, so if your app uses a UTI for those types, control will be handed over >> to you instead of DiskImageMounter simply because the user downloaded your >> app. > > Wow, I’ve never heard about that. That’s quite problematic. One caveat, of course, is that I haven't tested this on Mavericks, so it's possible that this may have changed. It was definitely behaving that way on previous OS X versions, reproducibly. I thought I had filed a Radar on this, but now I can't find it in my history. :-/ >> >> My solution was just to check the file associations on startup, and if it's >> set to me, change it back to the OS-provided app. It's a kludge, but it's >> stopped the angry e-mails, and all is right with the world. > > I *would* do that, but the app in question is sandboxed, so it surely can’t > change users’ preferences. Oh, the agony! :) Well, that's for a good reason, you see. If your app were able to change users' preferences, it might be able to... erm... take over... uh... file associations. Hrm. Charles _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
