Re: NSWindow delegate handling keyboard events
Re: NSWindow delegate handling keyboard events
- Subject: Re: NSWindow delegate handling keyboard events
- From: Matt Neuburg <email@hidden>
- Date: Sat, 19 Feb 2005 18:53:30 -0800
On or about 2/19/05 6:06 PM, thus spake "John C. Randolph" <email@hidden>:
>
> On Feb 19, 2005, at 9:46 AM, Matt Neuburg wrote:
>
>> On Fri, 18 Feb 2005 23:18:00 -0500, "Andrew O'Laughlin"
>> <email@hidden>
>> said:
>>> Apple's event handling says that a windows delegate is part of the
>>> responder chain, and that the delegate doesn't need to inherit from
>>> NSResponder.
>>
>> If it says that, then "Apple's event handling" lies.
>>
>>> I'm making a simple application, and subclassing NSWindow seems like
>>> overkill for interpreting a few keyDown and keyUp events. How would
>>> my
>>> window's delegate respond to those events? Implementing
>>> keyDown:(NSEvent *)event in the delegate doesn't do the trick though
>>> the documentation seems to imply that it would.
>>
>> It wouldn't. A window's delegate is not part of the chain.
>
> Actually, it is, but it's after the window itself. In this case, the
> event is probably getting consumed by the window. IIRC, NSWindow's
> -keyDown: method just plays a beep sound.
>
> According to the docs:
> the full responder chain comprises these objects:
>
> The key window¹s first responder and successors, including objects
> added with setNextResponder:
>
> The key window itself
>
> The key window¹s delegate (which need not inherit from NSResponder)
>
> The main window¹s first responder and successors, including objects
> added with setNextResponder:
>
> The main window itself
>
> The main window¹s delegate (which need not inherit from NSResponder)
>
> The application object, NSApp
>
> The application object¹s delegate (which need not inherit from
> NSResponder)
That list may describe correctly some responder chain (I do not think it
does, but it may); but it most certainly does not describe correctly the
responder chain the OP is asking about, namely, the chain of responders to a
keyDown event. m.
--
matt neuburg, phd = email@hidden, http://www.tidbits.com/matt/
pantes anthropoi tou eidenai oregontai phusei
AppleScript: the Definitive Guide! NOW SHIPPING...! (Finally.)
http://www.amazon.com/exec/obidos/ASIN/0596005571/somethingsbymatt
Subscribe to TidBITS! It's free and smart. http://www.tidbits.com/
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden