197 lines
7.3 KiB
Lua
197 lines
7.3 KiB
Lua
-- Copyright (c) 2020-2021 hoob3rt
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-- MIT license, see LICENSE for more details.
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local highlight = require('lualine.highlight')
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local loader = require('lualine.utils.loader')
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local utils_section = require('lualine.utils.section')
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local config_module = require('lualine.config')
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local config = config_module.config
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local function statusline(sections, is_focused)
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local function create_status_builder()
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-- The sequence sections should maintain
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local section_sequence = {'a', 'b', 'c', 'x', 'y', 'z'}
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local status_builder = {}
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for _, section_name in ipairs(section_sequence) do
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if sections['lualine_' .. section_name] then
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-- insert highlight+components of this section to status_builder
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local section_highlight = highlight.format_highlight(is_focused,
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'lualine_' ..
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section_name)
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local section_data = utils_section.draw_section(
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sections['lualine_' .. section_name],
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section_highlight)
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if #section_data > 0 then
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table.insert(status_builder,
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{name = section_name, data = section_data})
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end
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end
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end
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return status_builder
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end
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-- status_builder stores statusline without section_separators
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local status_builder = create_status_builder()
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-- Actual statusline
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local status = {}
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local half_passed = false
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for i = 1, #status_builder do
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-- midsection divider
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if not half_passed and status_builder[i].name > 'c' then
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table.insert(status,
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highlight.format_highlight(is_focused, 'lualine_c') .. '%=')
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half_passed = true
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end
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-- provide section_separators when statusline is in focus
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if is_focused then
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-- component separator needs to have fg = current_section.bg
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-- and bg = adjacent_section.bg
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local previous_section = status_builder[i - 1] or {}
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local current_section = status_builder[i]
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local next_section = status_builder[i + 1] or {}
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-- For 2nd half we need to show separator before section
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if current_section.name > 'x' and config.options.section_separators[2] ~=
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'' then
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local transitional_highlight = highlight.get_transitional_highlights(
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previous_section.data,
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current_section.data, true)
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if transitional_highlight and config.options.section_separators and
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config.options.section_separators[2] then
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table.insert(status, transitional_highlight ..
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config.options.section_separators[2])
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end
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end
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-- **( insert the actual section in the middle )** --
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table.insert(status, status_builder[i].data)
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-- For 1st half we need to show separator after section
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if current_section.name < 'c' and config.options.section_separators[1] ~=
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'' then
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local transitional_highlight = highlight.get_transitional_highlights(
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current_section.data,
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next_section.data)
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if transitional_highlight and config.options.section_separators and
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config.options.section_separators[1] then
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table.insert(status, transitional_highlight ..
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config.options.section_separators[1])
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end
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end
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else -- when not in focus
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table.insert(status, status_builder[i].data)
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end
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end
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-- incase none of x,y,z was configured lets not fill whole statusline with a,b,c section
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if not half_passed then
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table.insert(status,
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highlight.format_highlight(is_focused, 'lualine_c') .. '%=')
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end
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return table.concat(status)
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end
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-- check if any extension matches the filetype and return proper sections
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local function get_extension_sections()
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for _, extension in ipairs(config.extensions) do
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for _, filetype in ipairs(extension.filetypes) do
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local current_ft = vim.api.nvim_buf_get_option(
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vim.fn.winbufnr(vim.g.statusline_winid), 'filetype')
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if current_ft == filetype then return extension.sections end
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end
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end
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return nil
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end
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local function status_dispatch()
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-- disable on specific filetypes
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local current_ft = vim.api.nvim_buf_get_option(
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vim.fn.winbufnr(vim.g.statusline_winid), 'filetype')
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for _, ft in pairs(config.options.disabled_filetypes) do
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if ft == current_ft then
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vim.wo.statusline = ''
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return ''
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end
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end
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local extension_sections = get_extension_sections()
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if vim.g.statusline_winid == vim.fn.win_getid() then
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if extension_sections ~= nil then
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return statusline(extension_sections, true)
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end
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return statusline(config.sections, true)
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else
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if extension_sections ~= nil then
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return statusline(extension_sections, false)
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end
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return statusline(config.inactive_sections, false)
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end
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end
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local function tabline() return statusline(config.tabline, true) end
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local function setup_theme()
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local async_loader
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async_loader = vim.loop.new_async(vim.schedule_wrap(
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function()
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local function get_theme_from_config()
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local theme_name = config.options.theme
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if type(theme_name) == 'string' then
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local ok, theme = pcall(require, 'lualine.themes.' .. theme_name)
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if ok then return theme end
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elseif type(theme_name) == 'table' then
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-- use the provided theme as-is
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return config.options.theme
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end
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vim.api.nvim_err_writeln('theme ' .. tostring(theme_name) ..
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' not found, defaulting to gruvbox')
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return require 'lualine.themes.gruvbox'
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end
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local theme = get_theme_from_config()
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highlight.create_highlight_groups(theme)
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vim.api.nvim_exec([[
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augroup lualine
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autocmd ColorScheme * lua require'lualine.utils.utils'.reload_highlights()
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augroup END
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]], false)
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async_loader:close()
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end))
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async_loader:send()
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end
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local function set_tabline()
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if next(config.tabline) ~= nil then
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vim.o.tabline = '%!v:lua.require\'lualine\'.tabline()'
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vim.o.showtabline = 2
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end
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end
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local function set_statusline()
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if next(config.sections) ~= nil or next(config.inactive_sections) ~= nil then
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vim.o.statusline = '%!v:lua.require\'lualine\'.statusline()'
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vim.api.nvim_exec([[
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augroup lualine
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autocmd!
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autocmd WinLeave,BufLeave * lua vim.wo.statusline=require'lualine'.statusline()
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autocmd BufWinEnter,WinEnter,BufEnter * set statusline<
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autocmd VimResized * redrawstatus
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augroup END
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]], false)
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end
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end
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local function setup(user_config)
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if user_config then
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config_module.apply_configuration(user_config)
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elseif vim.g.lualine then
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vim.schedule(function()
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vim.api.nvim_err_writeln(
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[[Lualine: lualine will stop supporting vimscript soon, change your config to lua or wrap it around lua << EOF ... EOF]]) -- luacheck: ignore
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end)
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config_module.apply_configuration(vim.g.lualine)
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end
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setup_theme()
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loader.load_all(config)
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set_statusline()
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set_tabline()
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end
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return {setup = setup, statusline = status_dispatch, tabline = tabline}
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