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readme updated
[etc/awesome.git] / widgets / mpd.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6       * (c) 2010, Adrian C. <anrxc@sysphere.org>  
7                                                   
8 --]]
9
10 local markup       = require("lain.util.markup")
11 local helpers      = require("lain.helpers")
12
13 local awful        = require("awful")
14 local beautiful    = require("beautiful")
15 local naughty      = require("naughty")
16 local wibox        = require("wibox")
17
18 local io           = io
19 local os           = { execute  = os.execute,
20                        getenv   = os.getenv }
21 local string       = { gmatch   = string.gmatch }
22
23 local setmetatable = setmetatable
24
25 -- MPD infos
26 -- lain.widgets.mpd
27 local mpd = { id = nil }
28
29 function worker(args)
30     local args = args or {}
31     local password = args.password or ""
32     local host = args.host or "127.0.0.1"
33     local port = args.port or "6600"
34     local music_dir = args.music_dir or os.getenv("HOME") .. "/Music"
35     local refresh_timeout = args.refresh_timeout or 1
36     local header_color = args.header_color or beautiful.fg_normal or "#FFFFFF"
37     local color = args.color or beautiful.fg_focus or "#FFFFFF"
38     local spr = args.spr or " "
39     local footer = args.footer or ""
40     local app = args.app or "ncmpcpp"
41     local shadow = args.shadow or false
42
43     local mpdcover = helpers.scripts_dir .. "mpdcover"
44     local mpdh = "telnet://"..host..":"..port
45     local echo = "echo 'password "..password.."\nstatus\ncurrentsong\nclose'"
46
47     local mympd = wibox.widget.textbox()
48
49     helpers.set_map("current mpd track", nil)
50
51     local mympdupdate = function()
52         local function set_nompd()
53             if shadow
54             then
55                 mympd:set_text('')
56             else
57                 mympd:set_markup(markup(header_color, "mpd ") .. markup(color , "off") .. footer)
58             end
59         end
60
61         local mpd_state  = {
62             ["{state}"]  = "N/A",
63             ["{file}"]   = "N/A",
64             ["{Artist}"] = "N/A",
65             ["{Title}"]  = "N/A",
66             ["{Album}"]  = "N/A",
67             ["{Date}"]   = "N/A"
68         }
69
70         -- Get data from MPD server
71         local f = io.popen(echo .. " | curl --connect-timeout 1 -fsm 3 " .. mpdh)
72
73         for line in f:lines() do
74             for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
75                 if     k == "state"  then mpd_state["{"..k.."}"] = v
76                 elseif k == "file"   then mpd_state["{"..k.."}"] = v
77                 elseif k == "Artist" then mpd_state["{"..k.."}"] = awful.util.escape(v)
78                 elseif k == "Title"  then mpd_state["{"..k.."}"] = awful.util.escape(v)
79                 elseif k == "Album"  then mpd_state["{"..k.."}"] = awful.util.escape(v)
80                 elseif k == "Date"   then mpd_state["{"..k.."}"] = awful.util.escape(v)
81                 end
82             end
83         end
84
85         f:close()
86
87         if mpd_state["{state}"] == "play"
88         then
89             if mpd_state["{Title}"] ~= helpers.get_map("current mpd track")
90             then
91                 helpers.set_map("current mpd track", mpd_state["{Title}"])
92                 os.execute(mpdcover .. " '" .. music_dir .. "' '"
93                            .. mpd_state["{file}"] .. "'")
94                 mpd.id = naughty.notify({
95                     title = "Now playing",
96                     text = mpd_state["{Artist}"] .. " ("   ..
97                            mpd_state["{Album}"]  .. ") - " ..
98                            mpd_state["{Date}"]   .. "\n"   ..
99                            mpd_state["{Title}"],
100                     icon = "/tmp/mpdcover.png",
101                     fg = color,
102                     timeout = 6, 
103                     replaces_id = mpd.id
104                 }).id
105             end
106             mympd:set_markup(markup(header_color, mpd_state["{Artist}"])
107                              .. spr ..
108                              markup(color, mpd_state["{Title}"]) .. footer)
109         elseif mpd_state["{state}"] == "pause"
110         then
111             mympd:set_markup(markup(header_color, "mpd")
112                              .. spr ..
113                              markup(color, "paused") .. footer)
114         else
115             helpers.set_map("current mpd track", nil)
116                         set_nompd()
117               end
118     end
119
120     local mympdtimer = timer({ timeout = refresh_timeout })
121     mympdtimer:connect_signal("timeout", mympdupdate)
122     mympdtimer:start()
123     mympdtimer:emit_signal("timeout")
124
125     mympd:buttons(awful.util.table.join(
126         awful.button({}, 0,
127             function()
128                 helpers.run_in_terminal(app)
129             end)
130     ))
131
132     local mpd_out = { widget = mympd, notify = mympdupdate }
133
134     return setmetatable(mpd_out, { __index = mpd_out.widget })
135 end
136
137 return setmetatable(mpd, { __call = function(_, ...) return worker(...) end })