"Peek at (toggle) tree but do not focus on tree" & "Only toggle the focus on tree, if tree is already open"

[rohit-kumar-j]

I was using this method for Nvim-tree, but translated it to Neo-tree. If anyone wants this... here it is with

lazy.nvim:

---@desc Only toggle the focus to the tree if the tree is open
function _G.toggle_neotree()
  local curr_ft = vim.api.nvim_buf_get_option(vim.api.nvim_win_get_buf(0),"ft")
  local neo_tree_win_exists = nil
  for _, bufnr in ipairs(vim.api.nvim_tabpage_list_wins(0)) do
    local ft = vim.api.nvim_buf_get_option(vim.api.nvim_win_get_buf(bufnr),"ft")
    if string.find(ft, "neo%-tree") then
      neo_tree_win_exists = true
      break
    else
    end
  end

  if string.find(curr_ft, "neo%-tree") then
    vim.cmd("wincmd p")
  else
    vim.cmd('Neotree focus')
  end

end

---@desc Only toggle the tree open, but do not focus on the tree ... Only peek
function _G.peek_neotree()
  --- Chcek if a buffer named neo-tree exists in any window at all in the current tab page
  local neo_tree_win_exists = nil
  for _, bufnr in ipairs(vim.api.nvim_tabpage_list_wins(0)) do
    local ft = vim.api.nvim_buf_get_option(vim.api.nvim_win_get_buf(bufnr),"ft")
    if string.find(ft, "neo%-tree") then
      neo_tree_win_exists = true
      break
    else
    end
  end

  if neo_tree_win_exists == true then
    vim.cmd('Neotree close')
  else
    vim.cmd('Neotree')
    vim.cmd("wincmd p")
  end
end

return {
  "nvim-neo-tree/neo-tree.nvim",
  branch = "v3.x",
  dependencies = {
    "nvim-lua/plenary.nvim",
    "nvim-tree/nvim-web-devicons", -- not strictly required, but recommended
    "MunifTanjim/nui.nvim",
  },

  keys = {
    { "<leader>e", "<cmd>lua toggle_neotree()<CR>", desc = "NeoTree Find File Focus"}, -- Done
    { "<leader>r", "<cmd>lua peek_neotree()<CR>", desc = "NeoTree Peek"}, -- Done
  },

  config = function()
    require("neo-tree").setup({
      source_selector = {
        winbar = true,
        statusline = false
      },
      filesystem = {
        use_libuv_file_watcher = true,
        follow_current_file = {
          enabled = true,
          leave_dirs_open = true,
        },
      },
      window = {
        mapping_options = {
          noremap = true,
          nowait = true,
        },
        filesystem = {
          window = {
            ["<space>"] = {
              "none",
              nowait = true,
            },
          },
        },
        mappings = {
          ["<BS>"] = {
            "close_node",
            nowait = true,
          },
          ["<cr>"] = {
            "toggle_node",
            nowait = true,
          },
        }
      }
    })
  end
}