roobert/bufferline-cycle-windowless.nvim

github

bars-and-linestabline

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CREATED

2022-12-19

UPDATED

last year

---

:window: Bufferline Cycle Windowless

A bufferline extension to cycle through windowless buffers.

:zap: Motivation

Neovims default tab-window-buffer model allows viewing open buffers in multiple windows.

This plugin helps give a more traditional behaviour for tabs by configuring the ability to skip past buffers that are already open in an existing window. The behaviour is toggleable and configurable to be on or off by default.

:rocket: Installation

Lazy

{
  "roobert/bufferline-cycle-windowless.nvim",
  dependencies = {
    { "akinsho/bufferline.nvim" },
  },
  config = function()
    require("bufferline-cycle-windowless").setup({
      -- whether to start in enabled or disabled mode
      default_enabled = true,
    })
  end,
},

Packer

use {
  "roobert/bufferline-cycle-windowless.nvim",
  requires = {
    { "akinsho/bufferline.nvim" },
  },
  setup = function()
    require("bufferline-cycle-windowless").setup({
     -- whether to start in enabled or disabled mode
     default_enabled = true,
   })
  end,
}

:hammer_and_wrench: Usage

Simple Example

Standard Neovim

vim.api.nvim_set_keymap("n", "<S-l>", "<CMD>BufferLineCycleWindowlessNext<CR>",
    { noremap = true, silent = true })
vim.api.nvim_set_keymap("n", "<S-h>", "<CMD>BufferLineCycleWindowlessPrev<CR>",
    { noremap = true, silent = true })
vim.api.nvim_set_keymap("n", "<S-t>", "<CMD>BufferLineCycleWindowlessToggle<CR>",
    { noremap = true, silent = true })

Lunarvim

lvim.keys.normal_mode["<S-l>"] = "<CMD>BufferLineCycleWindowlessNext<CR>"
lvim.keys.normal_mode["<S-h>"] = "<CMD>BufferLineCycleWindowlessPrev<CR>"
lvim.keys.normal_mode["<S-t>"] = "<CMD>BufferLineCycleWindowlessToggle<CR>"

Advanced Example

This example firstly creates empty splits rather than splits with a view of the current file, and secondly, when cycling through buffers occurs it will delete the [no file] buffers, removing them from the buffer list / bufferline.

Standard Neovim

-- open empty splits
vim.api.nvim_set_keymap("n", "<leader>|", "<CMD>vsplit +enew<CR>", {})
vim.api.nvim_set_keymap("n", "<leader>_", "<CMD>split +enew<CR>", {})

-- since we open empty splits - clean them up as we cycle through open buffers
function ChangeTab(motion)
 local last_buffer_id = vim.fn.bufnr()
 local last_buffer_name = vim.fn.expand("%")

 if motion == "next" then
  vim.cmd([[BufferLineCycleWindowlessNext]])
 elseif motion == "prev" then
  vim.cmd([[BufferLineCycleWindowlessPrev]])
 else
  error("Invalid motion: " .. motion)
  return
 end

 if last_buffer_name == "" then
  vim.cmd("bd " .. last_buffer_id)
 end
end

-- switch through visible buffers with shift-l/h
vim.api.nvim_set_keymap("n", "<S-l>", "<CMD>lua ChangeTab('next')<CR>", {})
vim.api.nvim_set_keymap("n", "<S-h>", "<CMD>lua ChangeTab('prev')<CR>", {})
vim.api.nvim_set_keymap("n", "<S-t>", "<CMD>BufferLineCycleWindowlessToggle<CR>", {})

-- lighten up bufferline background
lvim.builtin.bufferline = {
 active = true,
 options = {
  separator_style = "slant",
 },
 highlights = {
  fill = {
   bg = "#252d52",
  },

  separator_selected = {
   fg = "#252d52",
  },

  separator_visible = {
   fg = "#252d52",
  },

  separator = {
   fg = "#252d52",
  },

  buffer_visible = {
   fg = "#9696ca",
   bold = false,
  },

  buffer_selected = {
   fg = "#eeeeee",
   bold = false,
  },

  tab_selected = {
   bold = false,
  },
 },
}

Lunarvim

-- open empty splits
lvim.builtin.which_key.mappings["|"] = { "<CMD>vsplit +enew<CR>", "Vertical split" }
lvim.builtin.which_key.mappings["_"] = { "<CMD>split +enew<CR>", "Horizontal split" }

-- since we open empty splits - clean them up as we cycle through open buffers
function ChangeTab(motion)
 local last_buffer_id = vim.fn.bufnr()
 local last_buffer_name = vim.fn.expand("%")

 if motion == "next" then
  vim.cmd([[BufferLineCycleWindowlessNext]])
 elseif motion == "prev" then
  vim.cmd([[BufferLineCycleWindowlessPrev]])
 else
  error("Invalid motion: " .. motion)
  return
 end

 if last_buffer_name == "" then
  vim.cmd("bd " .. last_buffer_id)
 end
end

-- switch through visible buffers with shift-l/h
lvim.keys.normal_mode["<S-l>"] = "<CMD>lua ChangeTab('next')<CR>"
lvim.keys.normal_mode["<S-h>"] = "<CMD>lua ChangeTab('prev')<CR>"
lvim.keys.normal_mode["<S-t>"] = "<CMD>BufferLineCycleWindowlessToggle<CR>"

-- lighten up bufferline background
lvim.builtin.bufferline = {
 active = true,
 options = {
  separator_style = "slant",
 },
 highlights = {
  fill = {
   bg = "#252d52",
  },

  separator_selected = {
   fg = "#252d52",
  },

  separator_visible = {
   fg = "#252d52",
  },

  separator = {
   fg = "#252d52",
  },

  buffer_visible = {
   fg = "#9696ca",
   bold = false,
  },

  buffer_selected = {
   fg = "#eeeeee",
   bold = false,
  },

  tab_selected = {
   bold = false,
  },
 },
}