lain/widget/contrib/kbdlayout.lua

79 lines
2.5 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2015, Dario Gjorgjevski
--]]
local helpers = require("lain.helpers")
local awful = require("awful")
local wibox = require("wibox")
local string = { format = string.format,
match = string.match }
local execute = os.execute
local setmetatable = setmetatable
-- Keyboard layout switcher
-- lain.widget.contrib.kblayout
local function factory(args)
local kbdlayout = { widget = wibox.widget.textbox() }
local args = args or {}
local layouts = args.layouts or {}
local settings = args.settings or function () end
local add_us_secondary = true
local timeout = args.timeout or 5
local idx = 1
if args.add_us_secondary == false then add_us_secondary = false end
local function kbd_run_settings(layout, variant)
kbdlayout_now = {
layout = string.match(layout, "[^,]+"), -- Make sure to match the primary layout only.
variant = variant
}
widget = kbdlayout.widget
settings()
end
function kbdlayout.update()
helpers.async("setxkbmap -query", function(status)
kbd_run_settings(string.match(status, "layout:%s*([^\n]*)"),
string.match(status, "variant:%s*([^\n]*)"))
end)
end
function kbdlayout.set(i)
if #layouts == 0 then return end
idx = ((i - 1) % #layouts) + 1 -- Make sure to wrap around as needed.
local to_execute = "setxkbmap " .. layouts[idx].layout
if add_us_secondary and not string.match(layouts[idx].layout, ",?us,?") then
to_execute = to_execute .. ",us"
end
if layouts[idx].variant then
to_execute = to_execute .. " " .. layouts[idx].variant
end
if execute(to_execute) then
kbd_run_settings(layouts[idx].layout, layouts[idx].variant)
end
end
function kbdlayout.next() kbdlayout.set(idx + 1) end
function kbdlayout.prev() kbdlayout.set(idx - 1) end
-- Mouse bindings
kbdlayout.widget:buttons(awful.util.table.join(
awful.button({ }, 1, function () kbdlayout.next() end),
awful.button({ }, 3, function () kbdlayout.prev() end)))
helpers.newtimer("kbdlayout", timeout, kbdlayout.update)
return kbdlayout
end
return factory