How to access nvimtree state? Want to toggle on focus, but not if already open.

[rtviii]

Hi there. I'd like to be able to swithc between buffer focus and nvimtree focus without toggling the tree needlessly. How do i find out the state of the tree? What's the best way to accomplish this otherwise?
In pseudocode, im roughly trying to do something like this :

function my_utility()
    if (nvimtree_is_open) 
    
             vim.cmd("NvimTreeFocus")
    else:
              vim.cmd("NvimTreeToggle")
              vim.cmd("NvimTreeFocus")
end

Thank you

[alex-courtis]

You can use events to determine the state: :help nvim-tree-events

You could listen for Event.TreeOpen and Event.TreeClose and record state. It would be best to maintain state per tab.

[alex-courtis]

Perhaps I'm not understanding your use case, however it seems that the decision is not necessary: NvimTreeFocus will open the tree if it's closed.

[rtviii]

Thanks, Alex. I should have tried that, this solves my issue. It's really good to know about the events too so im glad i asked.

Thanks for your work!

[alex-courtis]

Awesome. Please mark as answer ;)