Re: How to tell if file wrapper represents package
Re: How to tell if file wrapper represents package
- Subject: Re: How to tell if file wrapper represents package
- From: Kyle Sluder <email@hidden>
- Date: Sun, 14 Jul 2013 12:50:03 -0700
When it's the only information you have about the file, it's the best you can do.
Would be neat if there were a “UTI override” file attribute key, though.
--Kyle Sluder
(Sent from the road)
On Jul 14, 2013, at 12:39 PM, Mike Abdullah <email@hidden> wrote:
>
> On 14 Jul 2013, at 17:59, Kyle Sluder <email@hidden> wrote:
>
>> On Jul 14, 2013, at 9:33 AM, Mike Abdullah <email@hidden> wrote:
>>
>>>
>>> On 14 Jul 2013, at 08:40, Shane Stanley <email@hidden> wrote:
>>>
>>>> On 14/07/2013, at 1:30 PM, Lee Ann Rucker <email@hidden> wrote:
>>>>
>>>>> Haven't tried it, but [NSWorkspace isFilePackageAtPath:] looks like what you want. If that's not sufficient, there are other things in NSWorkspace that test files.
>>>>
>>>> The problem, though, is that a file wrapper doesn't have a path.
>>>
>>> I think you have a couple of options, neither terribly satisfactory:
>>>
>>> A) Use the .filename property to work your way through the wrappers and build up the expected URL/path of the file. Then query that to know if it's a package.
>>
>> This sounds like the correct approach to me. Grab the file extension, call UTTypeCreatePreferredIdentifierForTag to convert it to a UTI, then call UTTypeConformsTo (or -[NSWorkspace type:conformsToType:]) to determine if the type confirms to kUTTypePackage.
>
> I have to admit, relying on file extension makes me uncomfortable, but maybe it's good enough.
>
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