feat: add option always_show_tabs to control whether show tabline when there are only one tab.

[milanglacier]

No description provided.

[wwkayak]

Works good... thanks

[milanglacier]

Works good... thanks

Thanks for your feedback... Hope we can merge this patch ASAP...

[deponian]

In the meantime you can use this snippet until this PR is merged:

require('lualine').hide({place = {'tabline'}})
local lualine_tmp = vim.api.nvim_create_augroup('lualine_tmp', { clear = true })
vim.api.nvim_create_autocmd({ 'TabNew', 'TabClosed' }, {
  group = lualine_tmp,
  callback = function()
    if vim.fn.tabpagenr('$') == 1 then
      require('lualine').hide({place = {'tabline'}})
    else
      require('lualine').hide({place = {'tabline'}, unhide = true})
    end
  end,
})

Place this right after require('lualine').setup{ ... }

[milanglacier]

In the meantime you can use this snippet until this PR is merged:

require('lualine').hide({place = {'tabline'}})
local lualine_tmp = vim.api.nvim_create_augroup('lualine_tmp', { clear = true })
vim.api.nvim_create_autocmd({ 'TabNew', 'TabClosed' }, {
  group = lualine_tmp,
  callback = function()
    if vim.fn.tabpagenr('$') == 1 then
      require('lualine').hide({place = {'tabline'}})
    else
      require('lualine').hide({place = {'tabline'}, unhide = true})
    end
  end,
})

Place this right after require('lualine').setup{ ... }

Actually, this snippet doesn't work, because when lualine.hide is called, the showtabline will still be 2, so the effect of lualine.hide is simply that lualine will not try to decorate the tabline and the tabline will fallback to the default appearance.

Here is my workaround way to make showtabline always be 1:

        tabline = {
            lualine_a = {
                { 'filetype', icon_only = true },
            },
            lualine_b = {
                { 'tabs', mode = 2, max_length = vim.o.columns },
                {
                    function()
                        vim.o.showtabline = 1
                        return ''
                        --HACK: lualine will set &showtabline to 2 if you have configured
                        --lualine for displaying tabline. We want to restore the default
                        --behavior here.
                    end,
                },
            },
        },

It might be expensive to constantly call vim.o.showtabline = 1 but I absolutely don't feel any latency caused by this call at all... So I am satisfied with this workaround.

[deponian]

Actually, this snippet doesn't work, because when lualine.hide is called, the showtabline will still be 2, so the effect of lualine.hide is simply that lualine will not try to decorate the tabline and the tabline will fallback to the default appearance.

You are not quite right. hide() restores previous setting for tabline and showtabline options. See here:

lualine.nvim/lua/lualine.lua

Lines 488 to 489 in 05d78e9

	modules.nvim_opts.restore('tabline', { global = true })
	modules.nvim_opts.restore('showtabline', { global = true })

So if you have showtabline=1 (which is default) then my snippet is correct.

[masterbloxx]

what’s the status of this?

[milanglacier]

what’s the status of this?

I hope it can be merged ASAP, or at least get some feedback.

Since all the tests (except for those which are resulted in CI bugs) have passed.

So currently I have to use my own workaround to bypass it.

[milanglacier]

Any updates on this?

[shadmansaleh]

lgtm. Thanks. Also sorry for the late reply.