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--[[
Licensed under GNU General Public License v2
* (c) 2013, Luke Bonham
* (c) 2013, Rman
--]]
local newtimer = require("lain.helpers").newtimer
local awful = require("awful")
local beautiful = require("beautiful")
local naughty = require("naughty")
local io = { popen = io.popen }
local math = { modf = math.modf }
local string = { format = string.format,
match = string.match,
rep = string.rep }
local tonumber = tonumber
local setmetatable = setmetatable
-- ALSA volume bar
-- lain.widgets.alsabar
local alsabar = {
card = "0",
channel = "Master",
step = "2%",
colors = {
background = beautiful.bg_normal,
mute = "#EB8F8F",
unmute = "#A4CE8A"
},
terminal = terminal or "xterm",
mixer = terminal .. " -e alsamixer",
notifications = {
font = beautiful.font:sub(beautiful.font:find(""), beautiful.font:find(" ")),
font_size = "11",
color = beautiful.fg_normal,
bar_size = 18,
screen = 1
},
_current_level = 0,
_muted = false
}
function alsabar.notify()
alsabar.update()
local preset = {
title = "",
text = "",
timeout = 4,
screen = alsabar.notifications.screen,
font = alsabar.notifications.font .. " " ..
alsabar.notifications.font_size,
fg = alsabar.notifications.color
}
if alsabar._muted
then
preset.title = alsabar.channel .. " - Muted"
else
preset.title = alsabar.channel .. " - " .. alsabar._current_level .. "%"
end
int = math.modf((alsabar._current_level / 100) * alsabar.notifications.bar_size)
preset.text = "["
.. string.rep("|", int)
.. string.rep(" ", alsabar.notifications.bar_size - int)
.. "]"
if alsabar._notify ~= nil then
alsabar._notify = naughty.notify ({
replaces_id = alsabar._notify.id,
preset = preset,
})
else
alsabar._notify = naughty.notify ({
preset = preset,
})
end
end
local function worker(args)
local args = args or {}
local timeout = args.timeout or 4
local settings = args.settings or function() end
local width = args.width or 63
local height = args.heigth or 1
local ticks = args.ticks or false
local ticks_size = args.ticks_size or 7
local vertical = args.vertical or false
alsabar.cmd = args.cmd or "amixer"
alsabar.channel = args.channel or alsabar.channel
alsabar.step = args.step or alsabar.step
alsabar.colors = args.colors or alsabar.colors
alsabar.notifications = args.notifications or alsabar.notifications
alsabar.bar = awful.widget.progressbar()
alsabar.bar:set_background_color(alsabar.colors.background)
alsabar.bar:set_color(alsabar.colors.unmute)
alsabar.tooltip = awful.tooltip({ objects = { alsabar.bar } })
alsabar.bar:set_width(width)
alsabar.bar:set_height(height)
alsabar.bar:set_ticks(ticks)
alsabar.bar:set_ticks_size(ticks_size)
alsabar.bar:set_vertical(vertical)
function alsabar.update()
-- Get mixer control contents
local f = assert(io.popen(string.format("%s get %s", alsabar.cmd, alsabar.channel)))
local mixer = f:read("*a")
f:close()
-- Capture mixer control state: [5%] ... ... [on]
local volu, mute = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
if volu == nil then
volu = 0
mute = "off"
end
alsabar._current_level = tonumber(volu)
alsabar.bar:set_value(alsabar._current_level / 100)
if not mute and tonumber(volu) == 0 or mute == "off"
then
alsabar._muted = true
alsabar.tooltip:set_text (" [Muted] ")
alsabar.bar:set_color(alsabar.colors.mute)
else
alsabar._muted = false
alsabar.tooltip:set_text(string.format(" %s:%s ", alsabar.channel, volu))
alsabar.bar:set_color(alsabar.colors.unmute)
end
volume_now = {}
volume_now.level = tonumber(volu)
volume_now.status = mute
settings()
end
newtimer("alsabar", timeout, alsabar.update)
alsabar.bar:buttons (awful.util.table.join (
awful.button ({}, 1, function()
awful.util.spawn(alsabar.mixer)
end),
awful.button ({}, 3, function()
awful.util.spawn(string.format("amixer -c %s set %s toggle", alsabar.card, alsabar.channel))
alsabar.update()
end),
awful.button ({}, 4, function()
awful.util.spawn(string.format("amixer -c %s set %s %s+", alsabar.card, alsabar.channel, alsabar.step))
alsabar.update()
end),
awful.button ({}, 5, function()
awful.util.spawn(string.format("amixer -c %s set %s %s-", alsabar.card, alsabar.channel, alsabar.step))
alsabar.update()
end)
))
return alsabar
end
return setmetatable(alsabar, { __call = function(_, ...) return worker(...) end })
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