I have found that when creating an advanced prototype based class/widget, that all of the Event.observe and Event.stopObserving handling gets to be a pain in the ass..
I think it would be great to extend the current Event methods in Prototype to support some sort of "grouping" of events. Depending on the options, some do not always need to be removed so dispose functions typically look like: Event.stopObserving(...,...,...); Event.stopObserving(...,...,...); Event.stopObserving(...,...,...); if(this.blah) Event.stopObserving(...,...,...); if(this.blah) Event.stopObserving(...,...,...); I think a better scheme *in these cases* would be something like this when adding observers: Event.addObserver(key, element, name, observer, useCapture); and then, the dispose function would simply call something like Event.stopObservers(key); I'm thinking "this" would be a good key in most such cases. Does anyone see a problem with that? An added benefit here is that when extending classes that use this scheme, the programmer wouldn't have to worry about stopping his own observers as long as he used the same key. IPE comes to mind, all of the times I have extended createElement() functionality, adding observers and not having a good way to make sure they are disposed of later on unless I also extend IPE's own dispose(). This would also allow you to not have to store references to the event handler functions if you know you won't be manually removing it later: Event.addObserver(this,element,'click',this.clickElement.bindAsEventListener(this)); The handler function would be stored in the observers cache, and it could be unloaded as part of the stopObservers call. I'm just brainstorming at this point and will probably try to cook up some code and submit a patch, but I'd like to get some feedback. I think this would be a huge benefit to programmers like me who are making pages that have a potentially high amount of dynamic adding and removing going on. Thanks, Colin --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype: Core" group. To post to this group, send email to prototype-core@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/prototype-core?hl=en -~----------~----~----~----~------~----~------~--~---
