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. > > 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! :) > > Charles >
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