On Wed, Mar 10, 2021, at 8:01 PM, Anne van Kesteren wrote: > That does seem unfortunate, but unless other browsers are interested > in picking this up, I think it will hurt us more to be different than > that it helps. I don't think we should make aligning with Chrome and > Safari conditional upon some new API.
I agree with this. My main concern is that an event may be checked in multiple places, e.g. some in web framework like React, some in the site itself, or maybe just inside code owned by different teams. It would be pretty surprising if some of them checks the `deltaMode` and then the behavior suddenly changes for other places trying to read the value. I would suggest that we bring this back to W3C to discuss with other vendors regarding the current situation. If the web has been relying on delta being always pixel, maybe we should make `deltaMode` always return `DOM_DELTA_PIXEL`, and deltas always return pixel value. If the raw value is still useful to authors, one possible solution is that we expose a new `rawDeltaMode` and probably a new `getDeltaValue` method or so which requires a delta mode to be provided, and in the case such mode matches the raw delta mode, the raw value is returned without conversion. This way it could be less likely to be misused. WDYT? - XIdorn _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
