Re: [pointerevents] Define a low latency event that isn't occur in the document lifecycle

`pageX` / `pageY` are just the ones I tend to use the most - `clientX` and `clientY` are just as useful - and both can be used happily enough. Thinking about it I'd be almost convinced to keep this as simple and fast as possible and just use `screenX` / `screenY` and possibly add a `deltaX` and `deltaY`. I think what coordinates are included would depend on the most likely uses for it...

Observers aren't new - they're used for `MutationObserver` among other things (PerformanceObserver, IntersectionObserver, FetchObserver etc) - specifically developed as a replacement for `MutationEvent` because it needed something more performant than an event with bubble and cancel.

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Received on Monday, 14 August 2017 11:07:26 UTC