Hydra popup on NvimTree focus

[JoseConseco]

Here is demo of code that will draw popup menu (using https://github.com/anuvyklack/hydra.nvim ) automatically when NvimTree is focused:
nvim-tree_hydra.webm

local function change_root_to_global_cwd()
  local global_cwd = vim.fn.getcwd()
  -- local global_cwd = vim.fn.getcwd(-1, -1)
  api.tree.change_root(global_cwd)
end

local hint = [[
 _w_: cd CWD   _c_: Path yank           _/_: Filter
 _y_: Copy     _x_: Cut                 _p_: Paste
 _r_: Rename   _d_: Remove              _n_: New
 _h_: Hidden   _?_: Help
 ^
]]
-- ^ ^           _q_: exit

local nvim_tree_hydra = nil
local nt_au_group = vim.api.nvim_create_augroup("NvimTreeHydraAu", { clear = true })

local Hydra = require "hydra"
local function spawn_nvim_tree_hydra()
  nvim_tree_hydra = Hydra {
          name = "NvimTree",
          hint = hint,
          config = {
              color = "pink",
              invoke_on_body = true,
              buffer = 0, -- only for active buffer
              hint = {
                  position = "bottom",
                  border = "rounded",
              },
          },
          mode = "n",
          body = "H",
          heads = {
              { "w", change_root_to_global_cwd,     { silent = true } },
              { "c", api.fs.copy.absolute_path,     { silent = true } },
              { "/", api.live_filter.start,         { silent = true } },
              { "y", api.fs.copy.node,              { silent = true } },
              { "x", api.fs.cut,                    { exit = true, silent = true } },
              { "p", api.fs.paste,                  { exit = true, silent = true } },
              { "r", api.fs.rename,                 { silent = true } },
              { "d", api.fs.remove,                 { silent = true } },
              { "n", api.fs.create,                 { silent = true } },
              { "h", api.tree.toggle_hidden_filter, { silent = true } },
              { "?", api.tree.toggle_help,          { silent = true } },
              -- { "q", nil, { exit = true, nowait = true } },
          },
      }
  nvim_tree_hydra:activate()
end

vim.api.nvim_create_autocmd({ "BufEnter" }, {
    pattern = "*",
    callback = function(opts)
      -- print("leave: ft "..vim.bo[opts.buf].filetype)
      if vim.bo[opts.buf].filetype == "NvimTree" then
        spawn_nvim_tree_hydra()
      else
        -- print("au close hydra")
        if nvim_tree_hydra then
          nvim_tree_hydra:exit()
        end
        -- return true -- removes autocmd
      end
    end,
    group = nt_au_group,
})
 

[alex-courtis]

That's rather nice. Perhaps you could add a Recipe

[JoseConseco]

Done. I'm surprised anyone can edit wiki... I do not see option to close this issue.

[alex-courtis]

Thank you.