]> git.madduck.net Git - etc/awesome.git/blobdiff - widgets/alsa.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

calendar: separate args from attach; closes #294
[etc/awesome.git] / widgets / alsa.lua
index 114e2b2744d5cfc9bad45ef2cfa444d370ae4145..f73194b2a6c9b23dfc35394ed48864fd856e3dad 100644 (file)
@@ -7,59 +7,50 @@
                                                   
 --]]
 
-local newtimer        = require("lain.helpers").newtimer
-
-local wibox           = require("wibox")
-
-local io              = { popen  = io.popen }
-local string          = { match  = string.match }
-
-local setmetatable    = setmetatable
+local helpers      = require("lain.helpers")
+local shell        = require("awful.util").shell
+local wibox        = require("wibox")
+local string       = { match  = string.match,
+                       format = string.format }
+local setmetatable = setmetatable
 
 -- ALSA volume
 -- lain.widgets.alsa
-local alsa = {}
 
 local function worker(args)
+    local alsa     = { widget = wibox.widget.textbox() }
     local args     = args or {}
     local timeout  = args.timeout or 5
-    local channel  = args.channel or "Master -c 1"
     local settings = args.settings or function() end
 
-    alsa.widget = wibox.widget.textbox('')
-
-    function alsa.update()
-        local f = assert(io.popen('amixer get ' .. channel))
-        local mixer = f:read("*all")
-        f:close()
+    alsa.cmd           = args.cmd or "amixer"
+    alsa.channel       = args.channel or "Master"
+    alsa.togglechannel = args.togglechannel
 
-        volume_now = {}
+    local format_cmd = string.format("%s get %s", alsa.cmd, alsa.channel)
 
-        volume_now.level, volume_now.status = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
+    if alsa.togglechannel then
+        format_cmd = { shell, "-c", string.format("%s get %s; %s get %s",
+        alsa.cmd, alsa.channel, alsa.cmd, alsa.togglechannel) }
+    end
 
-        if volume_now.level == nil
-        then
-            volume_now.level  = "0"
-            volume_now.status = "off"
-        end
+    alsa.last = {}
 
-        if volume_now.status == ""
-        then
-            if volume_now.level == "0"
-            then
-                volume_now.status = "off"
-            else
-                volume_now.status = "on"
+    function alsa.update()
+        helpers.async(format_cmd, function(mixer)
+            local l,s = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
+            if alsa.last.level ~= l or alsa.last.status ~= s then
+                volume_now = { level = l, status = s }
+                widget = alsa.widget
+                settings()
+                alsa.last = volume_now
             end
-        end
-
-        widget = alsa.widget
-        settings()
+        end)
     end
 
-    newtimer("alsa", timeout, alsa.update)
+    helpers.newtimer(string.format("alsa-%s-%s", alsa.cmd, alsa.channel), timeout, alsa.update)
 
-    return setmetatable(alsa, { __index = alsa.widget })
+    return alsa
 end
 
-return setmetatable(alsa, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })