Isn't it already working? At least for primitiv types? Eg. when I bind a label to a Int property which i change with a slider bind to the same property i don't need additional code for KVO. Cheers Thilo On 13.05.2009 22:31 Uhr, Jeremy Voorhis wrote:
I've created a ticket at https://www.macruby.org/trac/ticket/252. I might be wrong as I am still grokking the Objective-C runtime, but it seems to me that this should be easy to implement if attr_accessor and attr_writer generate the setKey: method first and then implement #key= in terms of setKey:. Is there some requirement that key-value setter methods return void, or is that just by convention?
Best,
Jeremy
On Wed, May 13, 2009 at 12:00 PM, Laurent Sansonetti <lsansonetti@apple.com> wrote:
Hi Jeremy,
That's a pretty good idea! Could you file a bug on the tracker so that we do not forget about it?
Thanks, Laurent
On May 12, 2009, at 10:18 AM, Jeremy Voorhis wrote:
Hello,
I've been learning Cocoa, Objective-C and macruby in tandem and I was just wondering, are there any plans to integrate the key-value observing protocol with the attr_accessor family of methods? With a little experimentation, I found KVO is definitely possible with macruby, but the syntax is less than ideal (transcript made with the 0.4 release).
~ % macirb
class Notifier attr_accessor :value end => nil class Observer def observeValueForKeyPath(path, ofObject:object, change:change, context:context) puts change end end => nil n = Notifier.new => #<Notifier:0x8005e91a0> n.addObserver(Observer.new, forKeyPath:'value', options:0, context:nil) => nil n.value = 42 => 42 n.setValue 42 {"kind"=>1} => nil
Best,
Jeremy Voorhis _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
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