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-------------------------------------------------
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-- Volume Widget for Awesome Window Manager
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-- Shows the current volume level
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-- More details could be found here:
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-- https://github.com/streetturtle/awesome-wm-widgets/tree/master/volume-widget
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-- @author Pavel Makhov, Aurélien Lajoie
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-- @copyright 2018 Pavel Makhov
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-------------------------------------------------
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local wibox = require("wibox")
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local watch = require("awful.widget.watch")
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local spawn = require("awful.spawn")
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local naughty = require("naughty")
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local gfs = require("gears.filesystem")
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local dpi = require('beautiful').xresources.apply_dpi
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local PATH_TO_ICONS = "/usr/share/icons/Arc/status/symbolic/"
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local volume_icon_name="audio-volume-high-symbolic"
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local GET_VOLUME_CMD = 'amixer sget Master'
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local volume = {device = '', display_notification = false, notification = nil}
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function volume:toggle()
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volume:_cmd('amixer ' .. volume.device .. ' sset Master toggle')
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end
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function volume:raise()
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volume:_cmd('amixer ' .. volume.device .. ' sset Master 5%+')
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end
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function volume:lower()
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volume:_cmd('amixer ' .. volume.device .. ' sset Master 5%-')
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end
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--{{{ Icon and notification update
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--------------------------------------------------
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-- Set the icon and return the message to display
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-- base on sound level and mute
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--------------------------------------------------
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local function parse_output(stdout)
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local level = string.match(stdout, "(%d?%d?%d)%%")
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if stdout:find("%[off%]") then
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volume_icon_name="audio-volume-muted-symbolic_red"
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return level.."% <span color=\"red\"><b>Mute</b></span>"
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end
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level = tonumber(string.format("% 3d", level))
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if (level >= 0 and level < 25) then
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volume_icon_name="audio-volume-muted-symbolic"
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elseif (level < 50) then
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volume_icon_name="audio-volume-low-symbolic"
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elseif (level < 75) then
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volume_icon_name="audio-volume-medium-symbolic"
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else
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volume_icon_name="audio-volume-high-symbolic"
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end
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return level.."%"
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end
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--------------------------------------------------------
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--Update the icon and the notification if needed
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--------------------------------------------------------
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local function update_graphic(widget, stdout, _, _, _)
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local txt = parse_output(stdout)
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widget.image = PATH_TO_ICONS .. volume_icon_name .. ".svg"
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if volume.display_notification then
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volume.notification.iconbox.image = PATH_TO_ICONS .. volume_icon_name .. ".svg"
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naughty.replace_text(volume.notification, "Volume", txt)
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end
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end
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local function notif(msg, keep)
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if volume.display_notification then
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naughty.destroy(volume.notification)
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volume.notification= naughty.notify{
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text = msg,
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icon=PATH_TO_ICONS .. volume_icon_name .. ".svg",
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icon_size = dpi(16),
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title = "Volume",
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position = volume.position,
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timeout = keep and 0 or 2, hover_timeout = 0.5,
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width = 200,
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screen = mouse.screen
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}
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end
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end
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--}}}
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local function worker(args)
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--{{{ Args
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local args = args or {}
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local volume_audio_controller = args.volume_audio_controller or 'pulse'
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volume.display_notification = args.display_notification or false
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volume.position = args.notification_position or "top_right"
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if volume_audio_controller == 'pulse' then
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volume.device = '-D pulse'
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end
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GET_VOLUME_CMD = 'amixer ' .. volume.device.. ' sget Master'
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--}}}
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--{{{ Check for icon path
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if not gfs.dir_readable(PATH_TO_ICONS) then
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naughty.notify{
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title = "Volume Widget",
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text = "Folder with icons doesn't exist: " .. PATH_TO_ICONS,
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preset = naughty.config.presets.critical
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}
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return
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end
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--}}}
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--{{{ Widget creation
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volume.widget = wibox.widget {
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{
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id = "icon",
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image = PATH_TO_ICONS .. "audio-volume-muted-symbolic.svg",
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resize = false,
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widget = wibox.widget.imagebox,
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},
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layout = wibox.container.margin(_, _, _, 3),
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set_image = function(self, path)
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self.icon.image = path
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end
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}
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--}}}
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--{{{ Spawn functions
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function volume:_cmd(cmd)
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notif("")
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spawn.easy_async(cmd, function(stdout, stderr, exitreason, exitcode)
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update_graphic(volume.widget, stdout, stderr, exitreason, exitcode)
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end)
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end
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local function show()
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spawn.easy_async(GET_VOLUME_CMD,
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function(stdout, _, _, _)
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txt = parse_output(stdout)
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notif(txt, true)
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end
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)
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end
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--}}}
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--{{{ Mouse event
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--[[ allows control volume level by:
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- clicking on the widget to mute/unmute
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- scrolling when cursor is over the widget
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]]
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volume.widget:connect_signal("button::press", function(_,_,_,button)
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if (button == 4) then volume.raise()
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elseif (button == 5) then volume.lower()
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elseif (button == 1) then volume.toggle()
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end
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end)
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if volume.display_notification then
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volume.widget:connect_signal("mouse::enter", function() show() end)
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volume.widget:connect_signal("mouse::leave", function() naughty.destroy(volume.notification) end)
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end
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--}}}
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return volume.widget
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end
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return setmetatable(volume, { __call = function(_, ...) return worker(...) end })
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