lain/widget/alsabar.lua

140 lines
4.8 KiB
Lua

--[[
Licensed under GNU General Public License v2
* (c) 2013, Luke Bonham
* (c) 2013, Rman
--]]
local helpers = require("lain.helpers")
local awful = require("awful")
local naughty = require("naughty")
local wibox = require("wibox")
local math = { modf = math.modf }
local string = { format = string.format,
match = string.match,
rep = string.rep }
local type, tonumber = type, tonumber
-- ALSA volume bar
-- lain.widget.alsabar
local function factory(args)
local alsabar = {
colors = {
background = "#000000",
mute = "#EB8F8F",
unmute = "#A4CE8A"
},
_current_level = 0,
_mute = "off"
}
local args = args or {}
local timeout = args.timeout or 5
local settings = args.settings or function() end
local width = args.width or 63
local height = args.height or 1
local ticks = args.ticks or false
local ticks_size = args.ticks_size or 7
alsabar.cmd = args.cmd or "amixer"
alsabar.channel = args.channel or "Master"
alsabar.togglechannel = args.togglechannel
alsabar.colors = args.colors or alsabar.colors
alsabar.followtag = args.followtag or false
alsabar.notification_preset = args.notification_preset
if not alsabar.notification_preset then
alsabar.notification_preset = {}
alsabar.notification_preset.font = "Monospace 10"
end
local format_cmd = string.format("%s get %s", alsabar.cmd, alsabar.channel)
if alsabar.togglechannel then
format_cmd = { awful.util.shell, "-c", string.format("%s get %s; %s get %s",
alsabar.cmd, alsabar.channel, alsabar.cmd, alsabar.togglechannel) }
end
alsabar.bar = wibox.widget {
forced_height = height,
forced_width = width,
color = alsabar.colors.unmute,
background_color = alsabar.colors.background,
margins = 1,
paddings = 1,
ticks = ticks,
ticks_size = ticks_size,
widget = wibox.widget.progressbar
}
alsabar.tooltip = awful.tooltip({ objects = { alsabar.bar } })
function alsabar.update(callback)
helpers.async(format_cmd, function(mixer)
local volu, mute = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
if not volu or not mute then return end
if volu ~= alsabar._current_level or mute ~= alsabar._mute then
alsabar._current_level = tonumber(volu)
alsabar.bar:set_value(alsabar._current_level / 100)
if alsabar._current_level == 0 or mute == "off" then
alsabar._mute = mute
alsabar.tooltip:set_text("[Muted]")
alsabar.bar.color = alsabar.colors.mute
else
alsabar._mute = "on"
alsabar.tooltip:set_text(string.format("%s: %s", alsabar.channel, volu))
alsabar.bar.color = alsabar.colors.unmute
end
volume_now = {
level = alsabar._current_level,
status = alsabar._mute
}
settings()
if type(callback) == "function" then callback() end
end
end)
end
function alsabar.notify()
alsabar.update(function()
local preset = alsabar.notification_preset
if alsabar._mute == "on" then
preset.title = string.format("%s - Muted", alsabar.channel)
else
preset.title = string.format("%s - %s%%", alsabar.channel, alsabar._current_level)
end
int = math.modf((alsabar._current_level / 100) * awful.screen.focused().mywibox.height)
preset.text = string.format("[%s%s]", string.rep("|", int),
string.rep(" ", awful.screen.focused().mywibox.height - int))
if alsabar.followtag then preset.screen = awful.screen.focused() end
if not alsabar.notification then
alsabar.notification = naughty.notify {
preset = preset,
destroy = function() alsabar.notification = nil end
}
else
naughty.replace_text(alsabar.notification, preset.title, preset.text)
end
end)
end
helpers.newtimer(string.format("alsabar-%s-%s", alsabar.cmd, alsabar.channel), timeout, alsabar.update)
return alsabar
end
return factory