Re: [Pyobjc-dev] method swizzing

[Jason F. <ja...@th...>]

On Fri, May 22, 2009 at 8:51 AM, Daniel Ashbrook <an...@cc...> wrote:
> I'm trying to make my program log every event that happens. I'm
> probably doing it wrong. What I'm trying is:
>
> oldIMP = NSResponder.instanceMethodForSelector_('mouseDown:')
> newIMP = objc.selector(lambda self, e: NSLog('%s: %s'%(self,e)),
>            selector=oldIMP.selector, signature=oldIMP.signature)
> objc.classAddMethod(NSResponder, 'mouseDown:', newIMP)
>
> This works great - but only for clicking in places on the window that
> don't already do anything. When I click on a NSButton, for example, I
> don't get anything logged.
>
> I can go through and do the above for every subclass of NSResponder in
> my program, but that gets a little bit pesky, especially because it
> looks like I'd have to separately do it for things like the headers of
> NSTableViews and so forth.
>
> Is there a better way?

Swizzling sendEvent: in NSApplication might work better, as I think
everything will go through that before being dispatched to a
responder.


Jason