Re: Responder Chain Confusion
Re: Responder Chain Confusion
- Subject: Re: Responder Chain Confusion
- From: email@hidden
- Date: Tue, 09 Sep 2014 11:24:16 +0900
Intriguing. I will check that out for the future.
I know there are at least a couple of chains.
I just wish I knew more about the ups and downs of creating new chains.
Without duplication and abuse, it's such a powerful pattern with Objective-C.
Sent from my iPhone
> On 2014/09/09, at 8:55, Lee Ann Rucker <email@hidden> wrote:
>
> If you’re targeting 10.7 or later, you can use supplementalTargetForAction:sender: to add a responder chain side branch without modifying the actual chain.
>
>
>> On Sep 7, 2014, at 9:24 AM, email@hidden wrote:
>>
>> Hi all
>>
>> I just spent a bit of time poking around the responder chain and nil targeted actions.
>> I built a view controller and a view hierarchy with controls that should be configurable.
>> When instantiating the view controller the interface allows configuring the action SEL of the controls. Reuse is the goal of course.
>> I know 10.10 changes things greatly for view controllers. But on 10.9 that's not there.
>>
>> Anyway, I need to insert the view controller into the responder chain between its top level view and that view's superview.
>> That wasn't too bad. Implement the missing reference to the vc in a view subclass and give the vc a callback when the view is in place.
>>
>> But what I found while tinkering is that for non-document based apps from a vanilla project template there was no next responder for the window or the NSApplication instance.
>> I had a method in the app delegate that I was trying to reach via nil targeted action. It couldn't get there.
>> So I set the window nextResponder to the app and the app to the app delegate. I also made the app delegate an NSResponder subclass.
>>
>> It feels like overkill.
>> Am I missing something simple?
>> Is there something better to do here?
>>
>>
>>
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