+
+--[[
+
+ 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,
+ _muted = false
+ }
+
+ 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 (volu and tonumber(volu) ~= alsabar._current_level) or (mute and string.match(mute, "on") ~= alsabar._muted) then
+ alsabar._current_level = tonumber(volu) or alsabar._current_level
+ 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.color = alsabar.colors.mute
+ else
+ alsabar._muted = false
+ alsabar.tooltip:set_text(string.format("%s: %s", alsabar.channel, volu))
+ alsabar.bar.color = alsabar.colors.unmute
+ end
+
+ volume_now = {}
+ volume_now.level = tonumber(volu)
+ volume_now.status = 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._muted 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