Re: Telling apart different save panels
Re: Telling apart different save panels
- Subject: Re: Telling apart different save panels
- From: Graham Cox <email@hidden>
- Date: Fri, 23 Sep 2011 08:34:38 +1000
On 23/09/2011, at 5:20 AM, Seth Willits wrote:
> On Sep 20, 2011, at 6:00 PM, douglas welton wrote:
>
>> I'm not sure that my solution is any "less messy" than what you have suggested, but... when faced with this same situation, I gave the save panel a different title each time it was invoked. When the panel object was passed to my delegate, I could tell where the panel was being used by the title of the inbound object. No need for subclasses or additional retains.
>
>
>
> You could use Obj-C associated objects for the same effect with your own property instead of reusing title.
Can you elaborate? I'm not sure what you mean by this.
> Another simple way of solving the original problem is to have an instance variable for the sheet and use a comparison to distinguish them in the delegate methods.
I specifically didn't want to use that solution because the class is spread across numerous categories and adding ivars to support stuff in categories is troublesome from a code management point of view. Apart from that, adding an ivar breaks the otherwise extremely neat encapsulation of the task into a single method that has no external references - blocks make that possible, but the need for a delegate somewhat undermines that benefit.
Kyle's solution was fine for my case, so it's a solved issue.
--Graham
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