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|
---------------------------------------------------
-- Licensed under the GNU General Public License v2
-- * (c) 2010, MrMagne <mr.magne@yahoo.fr>
---------------------------------------------------
-- Usage example
--
-- -- Register widget
-- vicious.register(vol, vicious.contrib.pulse, " $1%", 2, "alsa_output.pci-0000_00_1b.0.analog-stereo")
-- -- Register buttons
-- vol:buttons(awful.util.table.join(
-- awful.button({ }, 1, function () awful.util.spawn("pavucontrol") end),
-- awful.button({ }, 4, function () vicious.contrib.pulse.add(5,"alsa_output.pci-0000_00_1b.0.analog-stereo") end),
-- awful.button({ }, 5, function () vicious.contrib.pulse.add(-5,"alsa_output.pci-0000_00_1b.0.analog-stereo") end)
-- ))
---------------------------------------------------
-- {{{ Grab environment
local type = type
local tonumber = tonumber
local io = { popen = io.popen }
local setmetatable = setmetatable
local os = { execute = os.execute }
local table = { insert = table.insert }
local string = {
find = string.find,
match = string.match,
format = string.format,
gmatch = string.gmatch
}
-- }}}
-- Pulse: provides volume levels of requested pulseaudio sinks
module("vicious.contrib.pulse")
-- {{{ Helper function
local function get_sink_name(sink)
-- If no sink is specified take the first one
if sink == nil then
local f = io.popen("pacmd list-sinks | grep name:")
local line = f:read("*all")
f:close()
sink = string.match(line, "<(.*)>")
-- If sink is an index, retrieve its name
elseif type(sink) == "number" then
local f = io.popen("pacmd list-sinks | grep name:")
local line = f:read("*all")
f:close()
local sinks = {}
for s in string.gmatch(line, "<(.*)>") do
table.insert(sinks, s)
end
sink = sinks[sink]
end
return sink
end
-- }}}
-- {{{ Pulseaudio widget type
local function worker(format, sink)
sink = get_sink_name(sink)
if sink == nil then return {0} end
-- Get sink data
local f = io.popen("pacmd dump | grep '\\(set-sink-volume " .. sink.."\\)\\|\\(set-sink-mute "..sink.."\\)'")
local data = f:read("*all")
f:close()
-- If mute return 0 (not "Mute") so we don't break progressbars
if string.match(data," (yes)\n$") then
return {0}
end
local vol = tonumber(string.match(data, "(0x[%x]+)"))
if vol == nil then vol = 0 end
return { vol/0x10000*100 }
end
-- }}}
-- {{{ Volume control helper
function add(percent, sink)
sink = get_sink_name(sink)
if sink == nil then return end
local f = io.popen("pacmd dump | grep 'set-sink-volume " .. sink.."'")
local data = f:read("*all")
f:close()
local initial_vol = tonumber(string.match(data, "(0x[%x]+)"))
local vol = initial_vol + percent/100*0x10000
if vol > 0x10000 then vol = 0x10000 end
if vol < 0 then vol = 0 end
local cmd = "pacmd set-sink-volume "..sink..string.format(" 0x%x", vol).." >/dev/null"
os.execute(cmd)
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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