lain/widgets/contrib/kbdlayout.lua

79 lines
2.3 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2015, Dario Gjorgjevski
--]]
local newtimer = require("lain.helpers").newtimer
local read_pipe = require("lain.helpers").read_pipe
local wibox = require("wibox")
local awful = require("awful")
local string = { match = string.match }
local setmetatable = setmetatable
local function worker (args)
local kbdlayout = {}
kbdlayout.widget = wibox.widget.textbox('')
local layouts = args.layouts
local settings = args.settings or function () end
local add_us_secondary = args.add_us_secondary or true
local timeout = args.timeout or 5
local idx = 1
-- Mouse bindings
kbdlayout.widget:buttons(awful.util.table.join(
awful.button({ }, 1, function () kbdlayout.next() end),
awful.button({ }, 3, function () kbdlayout.prev() end)))
local function run_settings (layout, variant)
widget = kbdlayout.widget
kbdlayout_now = { layout=string.match(layout, "[^,]+"), -- Make sure to match the primary layout only.
variant=variant }
settings()
end
function kbdlayout.update ()
local status = read_pipe('setxkbmap -query')
run_settings(string.match(status, "layout:%s*([^\n]*)"),
string.match(status, "variant:%s*([^\n]*)"))
end
function kbdlayout.set (i)
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 os.execute(to_execute) then
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
newtimer("kbdlayout", timeout, kbdlayout.update)
return setmetatable(kbdlayout, { __index = kbdlayout.widget })
end
return setmetatable({}, { __call = function (_, ...) return worker(...) end })