wiki updated

[etc/awesome.git] / widgets / alsa.lua

diff --git a/widgets/alsa.lua b/widgets/alsa.lua
index 7c269086a8f9d3d8948255e8a68c919d8af54d90..0bb205996054e12ff539e74624af637c3540ffdd 100644 (file)
--- a/widgets/alsa.lua
+++ b/widgets/alsa.lua
@@ -1,101 +1,75 @@
 
 --[[
-                                                      
-     Licensed under GNU General Public License v2     
-      * (c) 2013,      Luke Bonham                    
-      * (c) 2010-2012, Peter Hofmann                  
-      * (c) 2010,      Adrian C. <anrxc@sysphere.org> 
-                                                      
+                                                  
+     Licensed under GNU General Public License v2 
+      * (c) 2013, Luke Bonham                     
+      * (c) 2010, Adrian C. <anrxc@sysphere.org>  
+                                                  
 --]]
 
-local markup          = require("lain.util.markup")
-local run_in_terminal = require("lain.helpers").run_in_terminal
+local newtimer        = require("lain.helpers").newtimer
+local read_pipe       = require("lain.helpers").read_pipe
 
-local awful           = require("awful")
-local beautiful       = require("beautiful")
 local wibox           = require("wibox")
 
-local io              = io
-local string          = { format = string.format,
-                          match  = string.match }
+local string          = { match  = string.match,
+                          format = string.format }
 
 local setmetatable    = setmetatable
 
--- ALSA volume infos
--- nain.widgets.alsa
+-- ALSA volume
+-- lain.widgets.alsa
 local alsa = {
-    volume = 0,
-    mute = false,
+    level  = "0",
+    status = "off",
 }
 
-function worker(args)
-    local args = args or {}
-    local channel = args.channel or "Master"
-    local step = args.step or "1%"
-    local header = args.header or " Vol "
-    local header_color = args.header_color or beautiful.fg_normal or "#FFFFFF"
-    local color = args.color or beautiful.fg_focus or "#FFFFFF"
+local function worker(args)
+    local args     = args or {}
+    local timeout  = args.timeout or 1
+    local settings = args.settings or function() end
 
-    local myvolume = wibox.widget.textbox()
-    local myvolumeupdate = function()
-        local f = io.popen('amixer get ' .. channel)
-        local mixer = f:read("*all")
-        f:close()
+    alsa.cmd     = args.cmd or "amixer"
+    alsa.channel = args.channel or "Master"
 
-        local volume, mute = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
+    alsa.widget = wibox.widget.textbox('')
 
-        if volume == nil
+    function alsa.update()
+        local mixer = read_pipe(string.format("%s get %s", alsa.cmd, alsa.channel))
+
+        volume_now = {}
+
+        volume_now.level, volume_now.status = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
+
+        if volume_now.level == nil
         then
-            alsa.volume = 0
-        else
-            alsa.volume = volume
+            volume_now.level  = "0"
+            volume_now.status = "off"
         end
 
-        if mute == nil or mute == 'on'
+        if volume_now.status == ""
         then
-            alsa.mute = true
-            mute = ''
-        else
-            alsa.mute = false
-            mute = 'M'
+            if volume_now.level == "0"
+            then
+                volume_now.status = "off"
+            else
+                volume_now.status = "on"
+            end
         end
 
-        local ret = markup(color, string.format("%d%s", volume, mute))
-        myvolume:set_markup(markup(header_color, header) .. ret .. " ")
+        if alsa.level ~= volume_now.level or alsa.status ~= volume_now.status
+        then
+            widget = alsa.widget
+            settings()
+
+            alsa.level = volume_now.level
+            alsa.status = volume_now.status
+        end
     end
 
-    local myvolumetimer = timer({ timeout = 5 })
-    myvolumetimer:connect_signal("timeout", myvolumeupdate)
-    myvolumetimer:start()
-    myvolumetimer:emit_signal("timeout")
-
-    myvolume:buttons(awful.util.table.join(
-        awful.button({}, 1,
-            function()
-                run_in_terminal('alsamixer')
-             end),
-        awful.button({}, 3,
-            function()
-                awful.util.spawn('amixer sset ' .. channel ' toggle')
-            end),
-
-        awful.button({}, 4,
-            function()
-                awful.util.spawn('amixer sset ' .. channel .. ' ' .. step '+')
-                myvolumeupdate()
-            end),
-
-        awful.button({}, 5,
-            function()
-                awful.util.spawn('amixer sset ' .. channel .. ' ' .. step '-')
-                myvolumeupdate()
-            end)
-    ))
-
-    alsa.widget = myvolume
-    alsa.channel = channel
-    alsa.step = step
-    alsa.notify = myvolumeupdate
+    timer_id = string.format("alsa-%s-%s", alsa.cmd, alsa.channel)
+
+    newtimer(timer_id, timeout, alsa.update)
 
     return setmetatable(alsa, { __index = alsa.widget })
 end