+
+--[[
+
+ Licensed under GNU General Public License v2
+ * (c) 2013, Luke Bonham
+ * (c) 2013, Rman
+
+--]]
+
+local newtimer = require("lain.helpers").newtimer
+local read_pipe = require("lain.helpers").read_pipe
+
+local awful = require("awful")
+local beautiful = require("beautiful")
+local naughty = require("naughty")
+
+local math = { modf = math.modf }
+local mouse = mouse
+local string = { format = string.format,
+ match = string.match,
+ rep = string.rep }
+local tonumber = tonumber
+
+local setmetatable = setmetatable
+
+-- ALSA volume bar
+-- lain.widgets.pulsebar
+local pulsebar = {
+ sink = 0,
+
+ colors = {
+ background = beautiful.bg_normal,
+ mute = "#EB8F8F",
+ unmute = "#A4CE8A"
+ },
+
+ mixer = "pavucontrol",
+
+ 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 pulsebar.notify()
+ pulsebar.update()
+
+ local preset = {
+ title = "",
+ text = "",
+ timeout = 5,
+ screen = pulsebar.notifications.screen,
+ font = pulsebar.notifications.font .. " " ..
+ pulsebar.notifications.font_size,
+ fg = pulsebar.notifications.color
+ }
+
+ if pulsebar._muted
+ then
+ preset.title = "Sink " .. pulsebar.sink .. " - Muted"
+ else
+ preset.title = "Sink " .. pulsebar.sink .. " - " .. pulsebar._current_level .. "%"
+ end
+
+ int = math.modf((pulsebar._current_level / 100) * pulsebar.notifications.bar_size)
+ preset.text = "["
+ .. string.rep("|", int)
+ .. string.rep(" ", pulsebar.notifications.bar_size - int)
+ .. "]"
+
+ if pulsebar.followmouse then
+ preset.screen = mouse.screen
+ end
+
+ if pulsebar._notify ~= nil then
+ pulsebar._notify = naughty.notify ({
+ replaces_id = pulsebar._notify.id,
+ preset = preset,
+ })
+ else
+ pulsebar._notify = naughty.notify ({
+ preset = preset,
+ })
+ end
+end
+
+local function worker(args)
+ 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.heigth or 1
+ local ticks = args.ticks or false
+ local ticks_size = args.ticks_size or 7
+ local vertical = args.vertical or false
+ local scallback = args.scallback
+
+ pulsebar.cmd = args.cmd or string.format("pacmd list-sinks | sed -n -e '0,/*/d' -e '/base volume/d' -e '/volume:/p' -e '/muted:/p'")
+ pulsebar.colors = args.colors or pulsebar.colors
+ pulsebar.notifications = args.notifications or pulsebar.notifications
+ pulsebar.sink = args.sink or 0
+ pulsebar.followmouse = args.followmouse or false
+
+ pulsebar.bar = awful.widget.progressbar()
+
+ pulsebar.bar:set_background_color(pulsebar.colors.background)
+ pulsebar.bar:set_color(pulsebar.colors.unmute)
+ pulsebar.tooltip = awful.tooltip({ objects = { pulsebar.bar } })
+ pulsebar.bar:set_width(width)
+ pulsebar.bar:set_height(height)
+ pulsebar.bar:set_ticks(ticks)
+ pulsebar.bar:set_ticks_size(ticks_size)
+ pulsebar.bar:set_vertical(vertical)
+
+ function pulsebar.update()
+ if scallback then pulseaudio.cmd = scallback() end
+ local s = read_pipe(pulsebar.cmd)
+
+ volume_now = {}
+ volume_now.left = tonumber(string.match(s, ":.-(%d+)%%"))
+ volume_now.right = tonumber(string.match(s, ":.-(%d+)%%"))
+ volume_now.muted = string.match(s, "muted: (%S+)")
+
+ local volu = volume_now.left
+ local mute = volume_now.muted
+
+ if (volu and volu ~= pulsebar._current_level) or (mute and mute ~= pulsebar._muted)
+ then
+ pulsebar._current_level = volu
+ pulsebar.bar:set_value(pulsebar._current_level / 100)
+ if not mute and volu == 0 or mute == "no"
+ then
+ pulsebar._muted = true
+ pulsebar.tooltip:set_text (" [Muted] ")
+ pulsebar.bar:set_color(pulsebar.colors.mute)
+ else
+ pulsebar._muted = false
+ pulsebar.tooltip:set_text(string.format(" %s:%s ", pulsebar.sink, volu))
+ pulsebar.bar:set_color(pulsebar.colors.unmute)
+ end
+ settings()
+ end
+ end
+
+ pulsebar.bar:buttons (awful.util.table.join (
+ awful.button ({}, 1, function()
+ awful.util.spawn(pulsebar.mixer)
+ end)
+ ))
+
+ timer_id = string.format("pulsebar-%s", pulsebar.sink)
+
+ newtimer(timer_id, timeout, pulsebar.update)
+
+ return pulsebar
+end
+
+return setmetatable(pulsebar, { __call = function(_, ...) return worker(...) end })