About

Based on code from awesome wiki

Usage

require("pulseaudio")

...

volumewidget = widget({
    type = "textbox",
    name = "volumewidget",
    align = "right"
})

-- Optionally enable mousewheel support
volumewidget:buttons(awful.util.table.join(
  awful.button({ }, 4, function() pulseaudio.volumeUp(); volumewidget.text = pulseaudio.volumeInfo() end),
  awful.button({ }, 5, function() pulseaudio.volumeDown(); volumewidget.text = pulseaudio.volumeInfo() end)
))
-- Thanks to elementalvoid

volumewidget.text = pulseaudio.volumeInfo()
volumetimer = timer({ timeout = 30 })
volumetimer:add_signal("timeout", function() volumewidget.text = pulseaudio.volumeInfo() end)
volumetimer:start()

...

-- Create the wibox
mywibox[s] = awful.wibox({ position = "top", screen = s })
-- Add widgets to the wibox - order matters
mywibox[s].widgets = {

    ...

    volumewidget,

    ...
}

...

globalkeys = awful.util.table.join(globalkeys,
    ...

    awful.key({}, "XF86AudioMute", function() pulseaudio.volumeMute(); volumewidget.text = pulseaudio.volumeInfo() end),
    awful.key({}, "XF86AudioLowerVolume", function() pulseaudio.volumeDown(); volumewidget.text = pulseaudio.volumeInfo() end),
    awful.key({}, "XF86AudioRaiseVolume", function() pulseaudio.volumeUp(); volumewidget.text = pulseaudio.volumeInfo() end),

    ...
)