[Slider] Value can still be updated while disabled

[rolandjitsu]

• This is a v1.x issue (v0.x is no longer maintained).
• I have searched the issues of this repository and believe that this is not a duplicate.

Expected Behavior

If the slider is disabled, changing its value using the knob should not be allowed/not work.

Current Behavior

I can still drag and set the slider value using the knob.

Steps to Reproduce (for bugs)

1. See zl5xopv1lp
2. Try dragging the know or click at any distance on the slider

Context

Your Environment

Using latest of @material-ui/lab (1.0.0-alpha.4).

Tech	Version
Material-UI	v1.?.?
React
browser
etc

[adeelibr]

@rolandjitsu are you planning on working on this issue? or should I?

[rolandjitsu]

@adeelibr not today, I'm out of the office. I can do it tomorrow unless you'd like to work on it :)

[adeelibr]

I'd love to work on it. :)

[epodivilov]

Fixed in this PR

[adeelibr]

Oh ooh! I just made a PR as well #11746 I guess you can delete my PR now. :)

[adeelibr]

Kindly next time if you are about to make a PR on an issue, mention so that anyone about to work wouldn't work on it. :) @epodivilov

[epodivilov]

@adeelibr Yes, sure. I will always refresh the page before writing a comment about PR :)

[adeelibr]

Cheers. :) So now how do I delete my PR?

[epodivilov]

I somehow accidentally closed the PR by deleting the branch in my version of the repository. But I think one of members can close PR and it will be more correct :)