Re: folder content as model for NSTableView

FROM : Jean-Daniel Dupas
DATE : Fri Feb 15 23:59:17 2008

Le 15 févr. 08 à 23:50, Torsten Curdt a écrit :

>
> On 15.02.2008, at 20:56, Kyle Sluder wrote:
>

>> On Fri, Feb 15, 2008 at 2:30 PM, Torsten Curdt <<email_removed>> 
>> wrote:

>>> I'd assume I would have to come up with a FolderController extending
>>> either NSObjectController or NSController. Or extend
>>> NSArrayController and fill the array from the folder.

>>
>> Or go old-school and provide a data source.  Probably easier in 
>> this situation.

>
> Ehm ...I am still a newbie that basically started my first real 
> Cocoa project about 1,5 weeks ago. So old-school "data source" does 
> not tell me that much yet :) Care to elaborate?
>

>>> In general the problem I see is that the model could change
>>> "underneith". A file could have been deleted/added outside the
>>> application and not through the controller. Of course I could poll
>>> the directory for changes ...or is there a way to register to 
>>> receive
>>> file modification events?

>>
>> New in Leopard: FSEvents.  Tiger and below have fseventsd, but it's 
>> private.

>
> OK ...then I will go for polling - for now. Still waiting for the 
> new MBPs to switch to Leopard ;)


Have a look at kevent too (there is an Obj c wrapper for it: UKKQueue. http://www.zathras.de/angelweb/sourcecode.htm)
.
It's far better than polling.