154 lines
5 KiB
Lua
154 lines
5 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2013, Luca CPZ
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* (c) 2013, Rman
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--]]
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local helpers = require("lain.helpers")
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local awful = require("awful")
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local naughty = require("naughty")
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local wibox = require("wibox")
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local math = math
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local string = string
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local type = type
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local tonumber = tonumber
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-- ALSA volume bar
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-- lain.widget.alsabar
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local function factory(args)
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local alsabar = {
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colors = {
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background = "#000000",
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mute = "#EB8F8F",
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unmute = "#A4CE8A"
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},
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_current_level = 0,
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_playback = "off"
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}
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local args = args or {}
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local timeout = args.timeout or 5
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local settings = args.settings or function() end
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local width = args.width or 63
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local height = args.height or 1
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local margins = args.margins or 1
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local paddings = args.paddings or 1
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local ticks = args.ticks or false
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local ticks_size = args.ticks_size or 7
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alsabar.cmd = args.cmd or "amixer"
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alsabar.channel = args.channel or "Master"
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alsabar.togglechannel = args.togglechannel
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alsabar.colors = args.colors or alsabar.colors
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alsabar.followtag = args.followtag or false
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alsabar.notification_preset = args.notification_preset
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if not alsabar.notification_preset then
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alsabar.notification_preset = {}
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alsabar.notification_preset.font = "Monospace 10"
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end
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local format_cmd = string.format("%s get %s", alsabar.cmd, alsabar.channel)
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if alsabar.togglechannel then
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format_cmd = { awful.util.shell, "-c", string.format("%s get %s; %s get %s",
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alsabar.cmd, alsabar.channel, alsabar.cmd, alsabar.togglechannel) }
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end
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alsabar.bar = wibox.widget {
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color = alsabar.colors.unmute,
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background_color = alsabar.colors.background,
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forced_height = height,
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forced_width = width,
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margins = margins,
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paddings = margins,
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ticks = ticks,
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ticks_size = ticks_size,
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widget = wibox.widget.progressbar
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}
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alsabar.tooltip = awful.tooltip({ objects = { alsabar.bar } })
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function alsabar.update(callback)
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helpers.async(format_cmd, function(mixer)
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local vol, playback = string.match(mixer, "([%d]+)%%.*%[([%l]*)")
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if not vol or not playback then return end
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if vol ~= alsabar._current_level or playback ~= alsabar._playback then
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alsabar._current_level = tonumber(vol)
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alsabar.bar:set_value(alsabar._current_level / 100)
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if alsabar._current_level == 0 or playback == "off" then
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alsabar._playback = playback
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alsabar.tooltip:set_text("[Muted]")
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alsabar.bar.color = alsabar.colors.mute
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else
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alsabar._playback = "on"
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alsabar.tooltip:set_text(string.format("%s: %s", alsabar.channel, vol))
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alsabar.bar.color = alsabar.colors.unmute
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end
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volume_now = {
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level = alsabar._current_level,
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status = alsabar._playback
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}
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settings()
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if type(callback) == "function" then callback() end
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end
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end)
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end
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function alsabar.notify()
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alsabar.update(function()
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local preset = alsabar.notification_preset
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preset.title = string.format("%s - %s%%", alsabar.channel, alsabar._current_level)
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if alsabar._playback == "off" then
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preset.title = preset.title .. " Muted"
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end
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-- tot is the maximum number of ticks to display in the notification
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-- fallback: default horizontal wibox height
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local wib, tot = awful.screen.focused().mywibox, 20
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-- if we can grab mywibox, tot is defined as its height if
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-- horizontal, or width otherwise
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if wib then
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if wib.position == "left" or wib.position == "right" then
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tot = wib.width
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else
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tot = wib.height
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end
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end
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int = math.modf((alsabar._current_level / 100) * tot)
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preset.text = string.format("[%s%s]", string.rep("|", int),
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string.rep(" ", tot - int))
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if alsabar.followtag then preset.screen = awful.screen.focused() end
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if not alsabar.notification then
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alsabar.notification = naughty.notify {
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preset = preset,
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destroy = function() alsabar.notification = nil end
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}
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else
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naughty.replace_text(alsabar.notification, preset.title, preset.text)
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end
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end)
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end
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helpers.newtimer(string.format("alsabar-%s-%s", alsabar.cmd, alsabar.channel), timeout, alsabar.update)
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return alsabar
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end
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return factory
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