Add hover exit delay to HoverPlugin

[majeekg]

No description provided.

[marijnh]

• I'd like the default to be 100ms, to not deviate too strongly from the existing behavior.
• All three branches in mousemove call clearTimeout. You could just move it to the top of the function.
• Please use ?? instead of || for the defaulting so that people can set this to 0.

[majeekg]

Thanks for the feedback @marijnh ! I've modified as you said.

[marijnh]

Thanks!

[marijnh]

This breaks the tests, and on closer inspection has a bunch of issues with sloppy state management and race conditions, so I have reverted it again. I.e. what happens if the timeout has been set but the hover tooltip reopens for another hover action in the meantime?

[majeekg]

Ah ok.

This breaks the tests

I see, I'll look into updating the tests.

what happens if the timeout has been set but the hover tooltip reopens for another hover action in the meantime?

If it uses same HoverPlugin instance then adding clearTimeout(this.hoverExitTimeout) in startHover should fix this i suppose.