**Fix:** no-focus

[stereobooster]

Summary

• use mousedown instead of click, because click is triggered onkeydown on button for space and enter
• add "no-focus" on initial render, to prevent blink of focus state on first click

Related issue

To be tested

Me

• [ ] No error or warning in the console on localhost:6060

Tester 1

• [x] Things look good on the demo.

Tester 2

• [ ] Things look good on the demo.

[mpotomin]

Can I please have more info how to verify the fix?

[stereobooster]

To verify document.body.classList.add("no-focus"):

On first click on item with no-focus (tree in this case), we can see focus state, which is an error, because we should not see focus state on click (only on keyboard)

Second issue is that, we use use onClick to check that click happened, but onClick is triggered on keyboard ("Enter" or "Space") for buttons, so we hide focus even though user is using keyboard (not sure this is visible in our examples)