Experimental event API: Focus module

[behzad888]

Note:
determine eventData and pointerType

{
  pointerType: 'mouse' | 'pen' | 'touch' | 'keyboard'
}

Ref #15257

[sizebot]

Details of bundled changes.

Comparing: 81a61b1...e948baa

react-events

File	Filesize Diff	Gzip Diff	Prev Size	Current Size	Prev Gzip	Current Gzip	ENV
react-events.development.js	0.0%	-0.2%	1.16 KB	1.16 KB	617 B	616 B	UMD_DEV
react-events.production.min.js	0.0%	🔺+0.3%	512 B	512 B	352 B	353 B	NODE_PROD
react-events-press.development.js	0.0%	0.0%	12.88 KB	12.88 KB	3.02 KB	3.02 KB	UMD_DEV
react-events-hover.development.js	0.0%	+0.1%	6.74 KB	6.74 KB	1.79 KB	1.79 KB	UMD_DEV
react-events-hover.production.min.js	0.0%	🔺+0.1%	3.02 KB	3.02 KB	1.15 KB	1.15 KB	UMD_PROD
react-events-hover.production.min.js	0.0%	🔺+0.1%	2.85 KB	2.85 KB	1.1 KB	1.1 KB	NODE_PROD
react-events-focus.development.js	+68.6%	+73.4%	3.29 KB	5.54 KB	1.11 KB	1.92 KB	UMD_DEV
react-events-focus.production.min.js	🔺+64.2%	🔺+61.6%	1.52 KB	2.49 KB	740 B	1.17 KB	UMD_PROD
react-events-focus.development.js	+72.4%	+78.0%	3.12 KB	5.37 KB	1.06 KB	1.89 KB	NODE_DEV
react-events-focus.production.min.js	🔺+72.4%	🔺+68.7%	1.35 KB	2.33 KB	670 B	1.1 KB	NODE_PROD
ReactEventsFocus-dev.js	+11.4%	+5.9%	3.04 KB	3.38 KB	1.03 KB	1.1 KB	FB_WWW_DEV
ReactEventsFocus-prod.js	🔺+21.0%	🔺+10.4%	2.36 KB	2.85 KB	809 B	893 B	FB_WWW_PROD
react-events-swipe.development.js	0.0%	-0.0%	8.29 KB	8.29 KB	2.57 KB	2.57 KB	UMD_DEV
react-events-swipe.production.min.js	0.0%	-0.1%	3.46 KB	3.46 KB	1.61 KB	1.61 KB	UMD_PROD
react-events-swipe.production.min.js	0.0%	-0.1%	3.29 KB	3.29 KB	1.55 KB	1.55 KB	NODE_PROD
react-events-drag.production.min.js	0.0%	-0.1%	3.3 KB	3.3 KB	1.5 KB	1.5 KB	UMD_PROD
react-events-drag.production.min.js	0.0%	-0.1%	3.14 KB	3.14 KB	1.44 KB	1.44 KB	NODE_PROD

Generated by 🚫 dangerJS

[matthargett]

What about ‘gaze’ for AR/VR?l, and directional pad for TV remote/game controller?

[necolas]

We're still figuring things out. Not sure it's worth your time submitting PRs for experimental APIs that are in flux.

[jhampton]

What about ‘gaze’ for AR/VR?l, and directional pad for TV remote/game controller?

Agreed @matthargett . At the risk of being a pedant, perhaps a dwell or hover could be an analog for the same intent?

[necolas]

Thanks for taking interest in this work. But I'm closing this PR as master has diverged quite a lot and we're still figuring out event data internally. This approach doesn't work either as native focus/blur events do not contain pointerType information on the event object.