Re: [actionstep-core] MVC

[Ewan M. <mr...@mr...>]

Great, thanks for the reassurance and advice, Ewan.


On 1 Sep 2006, at 21:51, Scott Hyndman wrote:

>> Hello,
>>
>> I'm trying to program my application using MVC pattern as described
>> in Cocoa Fundamentals.
>>
>> "The delegate object itself is typically, but not necessarily, an
>> object, often a custom object,
>> that controls some part of the application (that is, a coordinating
>> controller object)."
>> CocoaFundamentals p148.
>>
>> Great so my thoughts so far I can either initialize my view objects
>> with their controller e.g.
>> var myView = (new MyView).initWithController((new  
>> MyController).init());
>> or as the text above suggests I can set it as a delegate and
>> implement an informal protocol between the controller and view e.g.
>> var myView = (new MyView()).init();
>> myView.setDelegate((new MyController).init));
>>
>>  From the actionstep source code there are three different ways to
>> implement setDelegate in your Delegator
>>
>> It can be notified (see ASFieldEditor.as)
>> It can be called directly and the delegate check to see that it
>> conforms to informal protocol(see ASTreeView.as)
>> It can be called directly but not checked to see if it responds to
>> calls (see NSImage.as , when is m_delegate used?)
>>
>> You can create an interface if you want (ASFieldEditingProtocol.as)
>> The naming strategy is either append Protocol or Delegate.
>>
>> Does this sound about right?
>
> Yes, it does.
>
>> So say I've got 10 small simple views shall I just bundle all my
>> control code in one or two Controllers and set either as delegate for
>> all the view?
>
> Yeah, you can absolutely do something like this. In fact, you may
> notice that the first argument for most delegate methods is the
> "sender", which is the object that is requesting the delegated
> behaviour. Just do equality testing on that and have it behave
> appropriately.
>
> Scott
>
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