How will a developer know when it would be worthwhile to mark their event listener as passive? Do we perhaps log something to the console?
Justin On Wed, May 4, 2016 at 3:19 PM, Kartikaya Gupta <kgu...@mozilla.com> wrote: > Summary: Authors can declare in their addEventListener call that the > listener will not be calling preventDefault() on the event. This > unlocks certain performance optimizations. > > Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1266066 > > Link to standard: > https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-passive - > note that this intent email is specifically about the "passive" flag; > the AddEventListenerOptions dictionary and addEventListener > modifications were already implemented in bug 1266194. I don't recall > seeing an intent email for that but maybe I missed it. > There is also an explainer doc at > https://github.com/WICG/EventListenerOptions which might be easier to > read for those already familiar with DOM events. > > Platform coverage: all platforms > > Estimated or target release: Hoping to get it in Firefox 49. I wrote > the patches today (they were pretty small) hence combining the intent > to implement and ship into this email rather than sending two separate > emails. > > Preference behind which this will be implemented: none at the moment > > Other browsers: See > https://github.com/WICG/EventListenerOptions#status-of-implementations > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
