Re: Multiple Observations
Re: Multiple Observations
- Subject: Re: Multiple Observations
- From: Gordon Apple <email@hidden>
- Date: Sat, 15 Jun 2013 15:32:27 -0500
- Thread-topic: Multiple Observations
Well, let¹s just call it unexpected behavior then. Now that I understand
what is going on, I see your point and will be forewarned in future
implementations. You are technically correct. However, it was a subtle
issue which could easily trip up someone encountering it for the first time.
I don¹t know if this mini-nib thing is a new issue with view-based tables,
or if it has been there in the past with other classes which use prototype
views. I still think the compiler should be smart enough to block this
without having to put a on-shot blocking flag in awakeFromNib, which I have
now done.
On 6/15/13 1:27 PM, "Kyle Sluder" <email@hidden> wrote:
> On Jun 15, 2013, at 11:20 AM, Gordon Apple <email@hidden> wrote:
>
>> Re: Multiple Observations Well, I have to say that this statement is highly
>> ambiguous.
>
> It is not ambiguous. It is clear as night and day. -awakeFromNib is sent to
> File's Owner during nib loading. End of story.
>
>> It does not explicitly say that awakeFromNib is sent to the file¹s owner
>> separately for every interface object.
>
> This sentence doesn't make sense. There is only one File's Owner per nib.
>
>> My reading of this would interpret it to say it is sent once to the file¹s
>> owner, in addition to being sent to to each interface object.
>
> This is correct.
>
>> Doing otherwise would not make any sense. I guess you are saying that this
>> statement applies for each mini-nib defining the cell view.
>
> This is also correct. The NSTableView docs are very explicit that each cell
> view is its own mini-nib that is unarchived anew each time a new instance is
> needed. As of 10.8, you can also manually register a nib.
>
>> I still consider this to be a bug.
>
> It is not a bug. You just need to learn the framework.
>
> --Kyle Sluder
>
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