141 lines
3.6 KiB
Lua
141 lines
3.6 KiB
Lua
-- Copyright (c) 2020-2021 shadmansaleh
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-- MIT license, see LICENSE for more details.
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local require = require('lualine_require').require
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local Tab = require 'lualine.components.tabs.tab'
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local M = require('lualine.component'):extend()
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local highlight = require 'lualine.highlight'
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local default_options = {
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max_length = 0,
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mode = 0,
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tabs_color = {
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active = nil,
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inactive = nil,
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},
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}
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local function get_hl(section, is_active)
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local suffix = is_active and '_normal' or '_inactive'
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local section_redirects = {
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lualine_x = 'lualine_c',
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lualine_y = 'lualine_b',
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lualine_z = 'lualine_a',
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}
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if section_redirects[section] then
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section = highlight.highlight_exists(section .. suffix) and section or section_redirects[section]
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end
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return section .. suffix
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end
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function M:init(options)
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M.super.init(self, options)
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default_options.tabs_color = {
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active = get_hl(options.self.section, true),
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inactive = get_hl(options.self.section, false),
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}
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self.options = vim.tbl_deep_extend('keep', self.options or {}, default_options)
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-- stylua: ignore
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self.highlights = {
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active = highlight.create_component_highlight_group(
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self.options.tabs_color.active,
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'tabs_active',
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self.options
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),
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inactive = highlight.create_component_highlight_group(
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self.options.tabs_color.inactive,
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'tabs_active',
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self.options
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),
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}
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end
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function M:update_status()
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local data = {}
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local tabs = {}
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for t = 1, vim.fn.tabpagenr '$' do
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tabs[#tabs + 1] = Tab { tabnr = t, options = self.options, highlights = self.highlights }
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end
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local current = vim.fn.tabpagenr()
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tabs[1].first = true
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tabs[#tabs].last = true
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if tabs[current] then
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tabs[current].current = true
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end
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if tabs[current - 1] then
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tabs[current - 1].beforecurrent = true
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end
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if tabs[current + 1] then
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tabs[current + 1].aftercurrent = true
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end
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local max_length = self.options.max_length
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if max_length == 0 then
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max_length = math.floor(vim.o.columns / 3)
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end
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local total_length
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for i, tab in pairs(tabs) do
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if tab.current then
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current = i
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end
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end
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local current_tab = tabs[current]
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if current_tab == nil then
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local t = Tab { tabnr = vim.fn.tabpagenr(), options = self.options, highlights = self.highlights }
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t.current = true
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t.last = true
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data[#data + 1] = t:render()
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else
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data[#data + 1] = current_tab:render()
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total_length = current_tab.len
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local i = 0
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local before, after
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while true do
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i = i + 1
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before = tabs[current - i]
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after = tabs[current + i]
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local rendered_before, rendered_after
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if before == nil and after == nil then
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break
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end
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if before then
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rendered_before = before:render()
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total_length = total_length + before.len
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if total_length > max_length then
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break
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end
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table.insert(data, 1, rendered_before)
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end
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if after then
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rendered_after = after:render()
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total_length = total_length + after.len
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if total_length > max_length then
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break
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end
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data[#data + 1] = rendered_after
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end
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end
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if total_length > max_length then
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if before ~= nil then
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before.ellipse = true
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before.first = true
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table.insert(data, 1, before:render())
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end
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if after ~= nil then
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after.ellipse = true
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after.last = true
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data[#data + 1] = after:render()
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end
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end
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end
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return table.concat(data)
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end
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vim.cmd [[
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function! LualineSwitchTab(tabnr, mouseclicks, mousebutton, modifiers)
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execute a:tabnr . "tabnext"
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endfunction
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]]
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return M
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