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nvim-scrollbar

Extensible Neovim Scrollbar

diagnostics

Features

Requirements

Installation

vim-plug

Plug 'petertriho/nvim-scrollbar'

packer.nvim

use("petertriho/nvim-scrollbar")

Setup

require("scrollbar").setup()
Search

search

Setup (Packer)

use {
  "kevinhwang91/nvim-hlslens",
  config = function()
    -- require('hlslens').setup() is not required
    require("scrollbar.handlers.search").setup({
        -- hlslens config overrides
    })
  end,
}

OR

use {
  "kevinhwang91/nvim-hlslens",
  config = function()
    require("hlslens").setup({
       build_position_cb = function(plist, _, _, _)
            require("scrollbar.handlers.search").handler.show(plist.start_pos)
       end,
    })

    vim.cmd([[
        augroup scrollbar_search_hide
            autocmd!
            autocmd CmdlineLeave : lua require('scrollbar.handlers.search').handler.hide()
        augroup END
    ]])
  end,
}

If you want to leave only search marks and disable virtual text:

require("scrollbar.handlers.search").setup({
    override_lens = function() end,
})
Git Signs
Peek.2022-11-11.12-24.gitsigns.sidebar.mp4

Display git changes in the sidebar. Requires gitsigns.nvim to be installed.

Setup (Packer)

use {
  "lewis6991/gitsigns.nvim",
  config = function()
    require('gitsigns').setup()
    require("scrollbar.handlers.gitsigns").setup()
  end
}

Config

Defaults 
require("scrollbar").setup({
    show = true,
    show_in_active_only = false,
    set_highlights = true,
    folds = 1000, -- handle folds, set to number to disable folds if no. of lines in buffer exceeds this
    max_lines = false, -- disables if no. of lines in buffer exceeds this
    hide_if_all_visible = false, -- Hides everything if all lines are visible
    throttle_ms = 100,
    handle = {
        text = " ",
        blend = 30, -- Integer between 0 and 100. 0 for fully opaque and 100 to full transparent. Defaults to 30.
        color = nil,
        color_nr = nil, -- cterm
        highlight = "CursorColumn",
        hide_if_all_visible = true, -- Hides handle if all lines are visible
    },
    marks = {
        Cursor = {
            text = "•",
            priority = 0,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "Normal",
        },
        Search = {
            text = { "-", "=" },
            priority = 1,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "Search",
        },
        Error = {
            text = { "-", "=" },
            priority = 2,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "DiagnosticVirtualTextError",
        },
        Warn = {
            text = { "-", "=" },
            priority = 3,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "DiagnosticVirtualTextWarn",
        },
        Info = {
            text = { "-", "=" },
            priority = 4,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "DiagnosticVirtualTextInfo",
        },
        Hint = {
            text = { "-", "=" },
            priority = 5,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "DiagnosticVirtualTextHint",
        },
        Misc = {
            text = { "-", "=" },
            priority = 6,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "Normal",
        },
        GitAdd = {
            text = "┆",
            priority = 7,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "GitSignsAdd",
        },
        GitChange = {
            text = "┆",
            priority = 7,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "GitSignsChange",
        },
        GitDelete = {
            text = "▁",
            priority = 7,
            gui = nil,
            color = nil,
            cterm = nil,
            color_nr = nil, -- cterm
            highlight = "GitSignsDelete",
        },
    },
    excluded_buftypes = {
        "terminal",
    },
    excluded_filetypes = {
        "dropbar_menu",
        "dropbar_menu_fzf",
        "DressingInput",
        "cmp_docs",
        "cmp_menu",
        "noice",
        "prompt",
        "TelescopePrompt",
    },
    autocmd = {
        render = {
            "BufWinEnter",
            "TabEnter",
            "TermEnter",
            "WinEnter",
            "CmdwinLeave",
            "TextChanged",
            "VimResized",
            "WinScrolled",
        },
        clear = {
            "BufWinLeave",
            "TabLeave",
            "TermLeave",
            "WinLeave",
        },
    },
    handlers = {
        cursor = true,
        diagnostic = true,
        gitsigns = false, -- Requires gitsigns
        handle = true,
        search = false, -- Requires hlslens
        ale = false, -- Requires ALE
    },
})

Colors/Highlights

Color takes precedence over highlight i.e. if color is defined, that will be used to define the highlight instead of highlight.

Mark type highlights are in the format of Scrollbar<MarkType> and Scrollbar<MarkType>Handle. If you wish to define these yourself, add set_highlights = false to the setup.

  • ScrollbarHandle
  • ScrollbarCursorHandle
  • ScrollbarCursor
  • ScrollbarSearchHandle
  • ScrollbarSearch
  • ScrollbarErrorHandle
  • ScrollbarError
  • ScrollbarWarnHandle
  • ScrollbarWarn
  • ScrollbarInfoHandle
  • ScrollbarInfo
  • ScrollbarHintHandle
  • ScrollbarHint
  • ScrollbarMiscHandle
  • ScrollbarMisc
  • ScrollbarGitAdd
  • ScrollbarGitAddHandle
  • ScrollbarGitChange
  • ScrollbarGitChangeHandle
  • ScrollbarGitDelete
  • ScrollbarGitDeleteHandle

Example config with tokyonight.nvim colors

local colors = require("tokyonight.colors").setup()

require("scrollbar").setup({
    handle = {
        color = colors.bg_highlight,
    },
    marks = {
        Search = { color = colors.orange },
        Error = { color = colors.error },
        Warn = { color = colors.warning },
        Info = { color = colors.info },
        Hint = { color = colors.hint },
        Misc = { color = colors.purple },
    }
})

Custom Handlers

One can define custom handlers consisting of a name and a lua function that returns a list of marks as follows:

require("scrollbar.handlers").register(name, handler_function)

handler_function receives the buffer number as argument and must return a list of tables with line, text, type, and level keys. Only the line key is required.

Key Description
line The line number. Required.
text Marker text. Defaults to global settings depending on type.
type The marker type. Default is Misc.
level Marker level. Default is 1.

E.g. the following marks the first three lines in every buffer.

require("scrollbar.handlers").register("my_marks", function(bufnr)
    return {
        { line = 0 },
        { line = 1, text = "x", type = "Warn" },
        { line = 2, type = "Error" }
    }
end)

Acknowledgements

License

MIT