103 lines
3.4 KiB
Lua
103 lines
3.4 KiB
Lua
---------------------------------------------------------------------------
|
|
-- @author Aleksey Fedotov <lexa@cfotr.com>
|
|
-- @copyright 2015 Aleksey Fedotov
|
|
-- @release @AWESOME_VERSION@
|
|
-- @classmod wibox.widget.keyboardlayout
|
|
---------------------------------------------------------------------------
|
|
|
|
local capi = {awesome = awesome}
|
|
local setmetatable = setmetatable
|
|
local os = os
|
|
local textbox = require("wibox.widget.textbox")
|
|
local button = require("awful.button")
|
|
local util = require("awful.util")
|
|
local widget_base = require("wibox.widget.base")
|
|
|
|
--- Keyboard Layout widget.
|
|
-- awful.widget.keyboardlayout
|
|
local keyboardlayout = { mt = {} }
|
|
|
|
-- Callback for updaing current layout
|
|
local function update_status (keyboardlayout)
|
|
keyboardlayout._current = awesome.xkb_get_layout_group();
|
|
local text = ""
|
|
if (#keyboardlayout._layout > 0) then
|
|
text = (" " .. keyboardlayout._layout[keyboardlayout._current] .. " ")
|
|
end
|
|
keyboardlayout.widget:set_text(text)
|
|
end
|
|
|
|
-- Callback for updating list of layouts
|
|
local function update_layout(keyboardlayout)
|
|
keyboardlayout._layout = {};
|
|
local group_names = awesome.xkb_get_group_names();
|
|
|
|
-- A typical layout string looks like "pc+us+ru:2+de:3+ba:4+inet",
|
|
-- and we want to get only three matches: "us", "ru:2", "de:3" "ba:4".
|
|
-- Please note that numbers of groups reported by xkb_get_group_names
|
|
-- is greater by one than the real group number.
|
|
local first_group = string.match(group_names, "+(%a+)");
|
|
if (not first_group) then
|
|
error ("Failed to get list of keyboard groups");
|
|
return;
|
|
end
|
|
keyboardlayout._layout[0] = first_group;
|
|
|
|
for name, number_str in string.gmatch(group_names, "+(%a+):(%d)") do
|
|
group = tonumber(number_str);
|
|
keyboardlayout._layout[group - 1] = name;
|
|
end
|
|
update_status(keyboardlayout)
|
|
end
|
|
|
|
--- Create a keyboard layout widget. It shows current keyboard layout name in a textbox.
|
|
-- @return A keyboard layout widget.
|
|
function keyboardlayout.new()
|
|
local widget = textbox()
|
|
local keyboardlayout = widget_base.make_widget(widget)
|
|
|
|
keyboardlayout.widget = widget
|
|
|
|
update_layout(keyboardlayout);
|
|
|
|
keyboardlayout.next_layout = function()
|
|
new_layout = (keyboardlayout._current + 1) % (#keyboardlayout._layout + 1)
|
|
keyboardlayout.set_layout(new_layout)
|
|
end
|
|
|
|
keyboardlayout.set_layout = function(group_number)
|
|
if (0 > group_number) or (group_number > #keyboardlayout._layout) then
|
|
error("Invalid group number: " .. group_number ..
|
|
"expected number from 0 to " .. #keyboardlayout._layout)
|
|
return;
|
|
end
|
|
awesome.xkb_set_layout_group(group_number);
|
|
end
|
|
|
|
-- callback for processing layout changes
|
|
capi.awesome.connect_signal("xkb::map_changed",
|
|
function () update_layout(keyboardlayout) end)
|
|
capi.awesome.connect_signal("xkb::group_changed",
|
|
function () update_status(keyboardlayout) end);
|
|
|
|
-- Mouse bindings
|
|
keyboardlayout:buttons(
|
|
util.table.join(button({ }, 1, keyboardlayout.next_layout))
|
|
)
|
|
|
|
return keyboardlayout
|
|
end
|
|
|
|
local _instance = nil;
|
|
|
|
function keyboardlayout.mt:__call(...)
|
|
if _instance == nil then
|
|
_instance = keyboardlayout.new(...)
|
|
end
|
|
return _instance
|
|
end
|
|
|
|
return setmetatable(keyboardlayout, keyboardlayout.mt)
|
|
|
|
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|