Re: notification when app is moved
Re: notification when app is moved
- Subject: Re: notification when app is moved
- From: Mitchell Livingston <email@hidden>
- Date: Thu, 17 Jul 2008 22:31:41 -0400
I'm actually using UKKQueue in the project (it's a great utility - thanks a lot!).
In some small tests I have seen that other apps break when moved while opened (testing with TextEdit), so perhaps I should just assume it won't move. I guess this is a moot issue then.
On Thursday, July 17, 2008, at 05:03PM, "Uli Kusterer" <email@hidden> wrote:
>On 17.07.2008, at 12:50, Mitchell Livingston wrote:
>> I need to pass the location to a c library and reset the location in
>> this library when the application is moved, so I need a way to know
>> when the app is moved.
>
>> How can I call it again if I don't know it moved? Waiting until it
>> fails is a bit too late in the process. Sure, chances are the app
>> won't move, but why should it ever fail? Storing it in the library
>> folder is not a real good option.
>
>
>As someone else said, use a kqueue to detect the app move. I wrote a
>nice little wrapper class around kqueues for uses like this, find it at
>
> <http://www.zathras.de/angelweb/sourcecode.htm#UKKQueue>
>
>Watch your application bundle folder with that, and when it notifies
>you that you've been moved, you can call into your library, passing
>whatever NSBundle pathForResource: returns then.
>
>Just be aware that Cocoa itself is kinda stupid about coping with the
>current app's bundle being moved (different from Carbon, funnily
>enough). So, while your library might still access the correct
>folders, the rest of your app may still go down in flames. Come to
>think of it, I'm not even sure whether NSBundle doesn't cache its
>location, so you might get the old path back. But I guess since the
>kqueue tells you where it got moved, you could deduce the path anyway.
>
>Cheers,
>-- Uli Kusterer
>"The Witnesses of TeachText are everywhere..."
>http://www.zathras.de
>
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