from asynchshell to awful.spawn.easy_async; started making every widget asynchronous

[etc/awesome.git] / widgets / contrib / kbdlayout.lua

diff --git a/widgets/contrib/kbdlayout.lua b/widgets/contrib/kbdlayout.lua
index c5242c18e814824fde7547318ccc8849939f3fb7..f57d2da2040f7408d1985b67c0f2cdede306ba41 100644 (file)
--- a/widgets/contrib/kbdlayout.lua
+++ b/widgets/contrib/kbdlayout.lua
@@ -1,57 +1,83 @@
 
+--[[
+                                                  
+     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 io           = { popen = io.popen }
 
 local setmetatable = setmetatable
 
-local function worker (args)
+-- Keyboard layout switcher
+-- lain.widgets.contrib.kblayout
+
+local function worker(args)
    local kbdlayout    = {}
    kbdlayout.widget   = wibox.widget.textbox('')
 
-   local settings     = args.settings or function () end
-   local layouts      = args.layouts
-   local idx          = 1
-   
-   local function run_settings (layout, variant)
+   local layouts          = args.layouts
+   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
+
+   -- 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=layout, variant=variant }
+      kbdlayout_now = { 
+          layout=string.match(layout, "[^,]+"), -- Make sure to match the primary layout only.
+          variant=variant
+      }
       settings()
    end
-   
-   function kbdlayout.update ()
-      local file   = assert(io.popen('setxkbmap -query'))
-      local status = file:read('*all')
-      file:close()
-
-      run_settings(string.match(status, "layout:%s*([^\n]*)%s*"),
-                  string.match(status, "variant:%s*([^\n]*)%s*"))
+
+   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)
+   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
+         to_execute = to_execute .. ' ' .. layouts[idx].variant
       end
 
       if os.execute(to_execute) then
-        run_settings(layouts[idx].layout, layouts[idx].variant)
+         run_settings(layouts[idx].layout, layouts[idx].variant)
       end
    end
 
-   function kbdlayout.next ()
+   function kbdlayout.next()
       kbdlayout.set(idx + 1)
    end
 
-   function kbdlayout.prev ()
+   function kbdlayout.prev()
       kbdlayout.set(idx - 1)
    end
 
-   newtimer("kbdlayout", args.timeout or 10, kbdlayout.update)
+   newtimer("kbdlayout", timeout, kbdlayout.update)
    return setmetatable(kbdlayout, { __index = kbdlayout.widget })
 end