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