On 27 Mar 2006 at 15:57, Jonathan Gardner wrote: > Unless I can declare a signal BEFORE it is signalled, you cannot > connect to it, nor can I signal it.
In my home-rolled (before Mochikit) js library. I have an event handling module that is more like a party line phone. "events" are broadcast on arbitrarily named channels. Any object can register to listen on any channel. Any object can send an "event" to a channel, and every object listening on the channel gets that event. If no object is listening, the event goes no where. There's no way to know in advance if that event will be used, and in many cases there's no way to know if anyone will send that event. So requiring to register a channel name in advance would complicate the code quite a bit. Because event originators would have to register all channels they might use, and event recipients would also register the same channel names as well, since they want to receive events on those channels. also, there's no way to be sure that event originators get initialized before recipients.. Also channel names are created on the fly as needed. So, I treat "events" as just a named party line to which any object can send an event (an object with attributes). And any object can request receiving any event on that channel. very simple, quite flexible. so in my opinion registration isn't very helpful. If some object wants to receive events for a signal not yet registered, then it should get registered automatically. Same for senders that wish to signal an event. Regarding typos and stuff. If I have to register for an event and then signal it, I may be typing that signal name more than once.. So there's a chance for confusion there. Anyway its not so hard to debug unexpected problems, just have a logger that logs all signals raised.. -- Brad Clements, [EMAIL PROTECTED] (315)268-1000 http://www.murkworks.com AOL-IM or SKYPE: BKClements --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "MochiKit" group. To post to this group, send email to mochikit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/mochikit -~----------~----~----~----~------~----~------~--~---
