How to handle tab.name() for certain plugins (Overseer / Aerial etc)

[ls-devs]

Hi,
I was wondering if there's a way we can set the tab name to vim.bo.filetype instead of using [No Name] on certain window like Overseer or Aerial for example ?

Please see actually tab name when openning Overseer :

Actually tabby config :

    require("tabby.tabline").set(function(line)
      return {
        {
          { "  ", hl = { fg = colors.green, bg = colors.none, style = "bold" } },
          line.sep(" ", { bg = colors.none }, { bg = colors.none }),
        },
        line.tabs().foreach(function(tab)
          local hl = tab.is_current() and "TabLineSel" or "TabLine"
          return {
            line.sep("", hl, { bg = colors.none }),
            tab.is_current() and "" or "󰆣",
            tab.name(),
            tab.close_btn(""),
            line.sep("", hl, { bg = colors.none }),
            hl = hl,
            margin = " ",
          }
        end),
        line.spacer(),
        line.wins_in_tab(line.api.get_current_tab()).foreach(function(win)
          return {
            line.sep("", "TabLine", { bg = colors.none }),
            win.is_current() and "  " or "  ",
            line.sep("", "TabLine", { bg = colors.none }),
            hl = { bg = colors.bg_dark, fg = colors.fg },
            margin = " ",
          }
        end),
        hl = { bg = colors.none },
      }
    end)

[ls-devs]

Actually, I ended up doing something like this :

EDIT : Edited code after some tweaks, ended up with something comfortable for me; but still gave me a headache. Is there any easier solution for this ?

    local getTabName = function(tab)
      local tabTail = vim.fn.fnamemodify(tab.name(), "%:t")
      local tabName = ""
      if string.len(tabTail) > 25 then
        local fileExt = string.match(tabTail, "[^.]+$")
        tabName = string.sub(tabTail, 0, 22 - string.len(fileExt)) .. "..." .. fileExt
      end
      if string.find(tabTail, "Floating") then
        if vim.bo.filetype == "" then
          local tail = vim.fn.expand("%:t")
          if string.find(tail, "toggleterm") then
            local pID = string.gsub(tail, "%d+:", "")
            tabName = string.gsub(pID, ";#toggleterm#%d+", "")
          end
          if string.find(tail, "npm") then
            tabName = string.gsub(tail, "%d+:", "")
          end
        else
          tabName = vim.bo.filetype
        end
      end
      if string.find(tab.name(), "%[%No Name]%[%d+%+%]") and string.find(vim.bo.filetype, "Overseer") then
        tabName = vim.bo.filetype
      end
      if tabName == "" then
        tabName = tab.name()
      end

      return tabName
    end

But I feel like it's an endless fight. Is there any solution I can achieve this or not really ?

[nanozuki]

For now, the better way to set it is to add the option line option. You can find windows from tabid. and get the file type from the window ID.

{
  tab_name = {
    name_fallback = function()
      local winid = vim.api.nvim_get_current_tabpage()
      local bufid = vim.api.nvim_win_get_buf(winid)
      local file_type = vim.api.nvim_buf_get_option(bufid, "filetype")
      if file_type == "Overseer" or file_type == "Aerial" then
        return file_type
      end
      return "[NO Name]"
    end,
  },
}

[nanozuki]

Welcome to more feedback and discussion.

I plan to refactor the documentation to add more instructions and some cookbooks. That will make this more easy to use.

[ls-devs]

@nanozuki Thanks for your reply. Unfortunately, the solution you provide leads me to a bug :

E5108: Error executing lua /home/ls-devs/.config/nvim/lua/ls-devs/plugins/ui/tabby.lua:7: Invalid window id: 1  

[nanozuki]

I'm sorry I use a wrong api, the code should be:

{
  tab_name = {
    name_fallback = function(tabid)
      local winid = vim.api.nvim_tabpage_get_win(tabid)
      local bufid = vim.api.nvim_win_get_buf(winid)
      local file_type = vim.api.nvim_buf_get_option(bufid, "filetype")
      if file_type == "Overseer" or file_type == "Aerial" then
        return file_type
      end
      return "[No Name]"
    end,
  },
}

[ls-devs]

I'm sorry I use a wrong api, the code should be:

{
  tab_name = {
    name_fallback = function(tabid)
      local winid = vim.api.nvim_tabpage_get_win(tabid)
      local bufid = vim.api.nvim_win_get_buf(winid)
      local file_type = vim.api.nvim_buf_get_option(bufid, "filetype")
      if file_type == "Overseer" or file_type == "Aerial" then
        return file_type
      end
      return "[No Name]"
    end,
  },
}

Can confirm it's working. Thanks for the help !