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