On Wed, Feb 29, 2012 at 7:40 PM, Jonas Sicking <jonas@sicking.cc> wrote: > On Wed, Feb 29, 2012 at 7:21 PM, Jake Verbaten <raynos2@gmail.com> wrote: > >> For 1, I don't know what that would look like, but something like > >> ECMAScript's Object.create() would be a nice pattern: > >> > >> var et = EventTarget.create(someObject); > > > > We don't actually need that, we just need to glare at browser vendors > until > > they implement the IDL. Once that is done then > > > > `var et = Object.create(EventTarget.prototype)` > > > > Should "just work" assuming the methods on EventTarget.prototype are > generic > > and flexible enough to work on any object. > > I don't see how they could be. Where would the functions store the > internal state such as the set of event listeners for example? > "Append an event listener to the associated list of event listeners" DOM4 does not specify how the associated list of event listeners should be stored. There are a few candidates that can make this generically work with objects - as properties this._events on the object - as a WeakMap or Map structure - as some clever association that works generically done in the C++ layer Making this association generic should be the only thing neccessary for these methods to "just work" on objects
Received on Wednesday, 29 February 2012 20:00:46 UTC