Focus (visually hidden) input radio/checkbox

[patrickhlauke]

This allows for keyboard navigation (e.g. arrow keys left/right to trigger different radio buttons) following an initial mouse click interaction on a radio button or checkbox

A simplified port of #19192 to the new v4 code base

[patrickhlauke]

Savage appears to be stuck. As local tests and Travis don't report anything untowards, I'm going to be bold and merge...

[cvrebert]

We might be able to use raw DOM's https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/focus instead of jQuery here.

[patrickhlauke]

Ah sorry, already merged. But would our preference be to go vanilla instead of jquery then?

[cvrebert]

The strategy for v4's JS seems to be to not use jQuery in cases where it doesn't really buy us anything. It's more performant if nothing else.

[maugusto-cit]

@patrickhlauke , it seems this issue has been tackled many times, but it also seems it is back in the latest version (4 alpha 5). If you check the sample here, you'll see that keyboard navigation (in Safari) is not changing the checked attribute in the input radio. Should I report a new issue?

[patrickhlauke]

@maugusto-cit yeah this issue is still not fixed :( i made a start over here #18874 but need to find some time to take it further