dotfiles/awesome/music.lua

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Lua
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local naughty = require("naughty")
local wibox = require("wibox")
local awful = require("awful")
local ret = {}
ret.text_widget = wibox.widget.textbox()
ret.text_widget:set_align("right")
ret.text_widget.font = "Ubuntu Mono"
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ret.icon_widget = wibox.widget.textbox()
ret.icon_widget:set_align("right")
ret.icon_widget.font = "Ubuntu Mono"
local icon = ""
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local total_text = ""
local position = 1
local width = 30
local dots = 3
local function string_starts_with(String,Start)
return string.sub(String,1,string.len(Start))==Start
end
local function string_split(str, delimiter)
if str == nil then
return {}
end
local ret = {''}
count = 1
for i = 1, string.len(str) do
local c = str:sub(i,i)
if c == delimiter then
count = count + 1
ret[count] = ''
else
ret[count] = ret[count] .. c
end
end
return ret
end
local function pad(str, len, char)
if char == nil then char = ' ' end
return str .. string.rep(char, len - #str)
end
local function set_text(text)
total_text = text
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if string.len(total_text) >= width then
position = math.floor((width - string.len(total_text)) / 2)
end
end
ret.execute_command = function(command)
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awful.spawn.easy_async('music-client ' .. command, function(stdout, stderr, reason, code)
local text = string_split(stdout, '\n')
local active_command =
string_starts_with(command, 'file') or
string_starts_with(command, 'next') or
string_starts_with(command, 'previous')
local start_server_command = active_command or
string_starts_with(command, 'play') or
string_starts_with(command, 'pause')
if code == 0 then
if active_command then
set_text(text[1])
elseif string_starts_with(command, 'noop') then
total_text = text[1]
position = math.floor((width - string.len(total_text)) / 2)
end
elseif start_server_command then
-- Start the server and re-exec the command
os.execute('music-server&')
os.execute('sleep 0.2')
ret.execute_command('noop')
else
set_text('music-server not running')
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end
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if text[2] ~= nil then
icon = text[2]
end
end)
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end
function update_widget()
ret.icon_widget:set_text(' ' .. icon .. ' ')
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if string.len(total_text) < width then
ret.text_widget:set_text(' ' .. pad(total_text, width + 1, ' '))
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else
local pos = math.min(position, string.len(total_text) - width)
pos = math.max(1, pos)
ret.text_widget:set_text(' ' .. string.sub(total_text, pos, pos + width))
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position = position + 1
if position > string.len(total_text) then
position = math.floor((width - string.len(total_text)) / 2)
end
end
end
ret.execute_command('noop')
ret.timer = timer({timeout=0.2})
ret.timer:connect_signal("timeout", update_widget)
ret.timer:start()
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return ret