Fix telescope windows

[droopy4096]

Recent updates made Telescope windows be picked up by winbar making things looking rather odd:

turns out that that some can be picked by TelescopePrompt filetype but others have empty filetype and the only identyfying feature was term: first component of the path.

[droopy4096]

trouble is that winbar does come up in "buf 2:" view after a few back-and-forth as well. So there must be some other way to identify that those are Telescope views and disable winbar there. filetype alone is not sufficient of an identifier. Also files that didn't get their type "guessed" by neovim may fall into the same category.

[droopy4096]

@fgheng what do you think would be more appropriate here to catch Telescope views?

[droopy4096]

I've had couple of ideas thus far:

1. Filter out buffers who have file names associated with them but no actual file on-disk. This would take care of term:/ files, and some "artificial" buffers.

2. Configure telescope to disable winbar upon entry and re-enable it after closure. I'm not familiar with Telescope codebase but if there are any hooks or events that could be leveraged - winbar would need to have a "toggle" that could be invoked to disable it temporarily for Telescope

[droopy4096]

tried "fixing" it with overriding status when entering Telescope buffer:

vim.api.nvim_create_autocmd({'BufWinEnter','BufWinLeave'}, {
  callback = function(ev)
    local wb=require('winbar')
    if ev.event == 'BufWinEnter' then
      if vim.fn.filereadable(ev.file) then
        -- it's a real file
        local ft = vim.api.nvim_buf_get_name(ev.buf)
        if ft == 'TelescopePrompt' then
          -- disable winbar
          wb.setup({enable=false})
        end
      end
    elseif ev.event == 'BufWinEnter' then
      wb.setup({enable=true})
    end
  end
})

with no success

[droopy4096]

After some tinkering I think I've arrived (by experimentation) at a combination of conditions that disables winbar for telescope windows.