In inline mode, when current day is disable, opening the picker is select the first enabled day.

[ChanaKra]

Environment

Tech	Version
@material-ui/pickers	3.2.4
material-ui	4
React	16.8
Browser	chrome
Peer library	moment

Steps to reproduce

1. Create a picker with variant="inline"
2. Add shouldDisableDate that disable current day.
   (with moment, for example: shouldDisableDate={(date)=>date.isSame(moment(),'day')} )
3. Open the picker, and close it without selecting any date.

Expected behavior

No date is selected.

Actual behavior

When open the picker, the first enabled day is selected.

Live example

https://codesandbox.io/s/material-ui-pickers-usage-demo-qxylf

[dmtrKovalenko]

It is by design.

[ChanaKra]

It's not consistent.
To clarify, The problem is that in this case, the first enabled day is not only focused but also the onChange & onAccept functions are invoked.
If you open the picker when the current day is enable - the current day get focused, but onChange & onAccept are not invoked.

In addition, it's only occurs in inline mode.

[dmtrKovalenko]

Yeah, I know. We probably can consider changing it in #1293. But right now if current day is disabled picker will automatically select the closest one.
But for inline mode any selection triggers onChange to be called.

What behavior you want to see there? Highlight the disabled date?

[ChanaKra]

In inline mode, any selection triggers onChange. but open and close picker isn't selection.
For example, when the field is empty, open the picker doesn't select current date.

I expect that the closest enable date will be highlight, but not update the value,
just like when highlight current date: