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widgets: no global tables, but one instance per call; closes #336; closes #337
[etc/awesome.git] / widget / 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 helpers      = require("lain.helpers")
11 local shell        = require("awful.util").shell
12 local escape_f     = require("awful.util").escape
13 local focused      = require("awful.screen").focused
14 local naughty      = require("naughty")
15 local wibox        = require("wibox")
16 local os           = { getenv = os.getenv }
17 local string       = { format = string.format,
18                        gmatch = string.gmatch,
19                        match  = string.match }
20
21 -- MPD infos
22 -- lain.widget.mpd
23
24 local function factory(args)
25     local mpd           = { widget = wibox.widget.textbox() }
26     local args          = args or {}
27     local timeout       = args.timeout or 2
28     local password      = (args.password and #args.password > 0 and string.format("password %s\\n", args.password)) or ""
29     local host          = args.host or "127.0.0.1"
30     local port          = args.port or "6600"
31     local music_dir     = args.music_dir or os.getenv("HOME") .. "/Music"
32     local cover_pattern = args.cover_pattern or "*\\.(jpg|jpeg|png|gif)$"
33     local cover_size    = args.cover_size or 100
34     local default_art   = args.default_art
35     local notify        = args.notify or "on"
36     local followtag     = args.followtag or false
37     local settings      = args.settings or function() end
38
39     local mpdh = string.format("telnet://%s:%s", host, port)
40     local echo = string.format("printf \"%sstatus\\ncurrentsong\\nclose\\n\"", password)
41     local cmd  = string.format("%s | curl --connect-timeout 1 -fsm 3 %s", echo, mpdh)
42
43     mpd_notification_preset = { title = "Now playing", timeout = 6 }
44
45     helpers.set_map("current mpd track", nil)
46
47     function mpd.update()
48         helpers.async({ shell, "-c", cmd }, function(f)
49             mpd_now = {
50                 random_mode  = false,
51                 single_mode  = false,
52                 repeat_mode  = false,
53                 consume_mode = false,
54                 pls_pos      = "N/A",
55                 pls_len      = "N/A",
56                 state        = "N/A",
57                 file         = "N/A",
58                 name         = "N/A",
59                 artist       = "N/A",
60                 title        = "N/A",
61                 album        = "N/A",
62                 genre        = "N/A",
63                 track        = "N/A",
64                 date         = "N/A",
65                 time         = "N/A",
66                 elapsed      = "N/A"
67             }
68
69             for line in string.gmatch(f, "[^\n]+") do
70                 for k, v in string.gmatch(line, "([%w]+):[%s](.*)$") do
71                     if     k == "state"          then mpd_now.state        = v
72                     elseif k == "file"           then mpd_now.file         = v
73                     elseif k == "Name"           then mpd_now.name         = escape_f(v)
74                     elseif k == "Artist"         then mpd_now.artist       = escape_f(v)
75                     elseif k == "Title"          then mpd_now.title        = escape_f(v)
76                     elseif k == "Album"          then mpd_now.album        = escape_f(v)
77                     elseif k == "Genre"          then mpd_now.genre        = escape_f(v)
78                     elseif k == "Track"          then mpd_now.track        = escape_f(v)
79                     elseif k == "Date"           then mpd_now.date         = escape_f(v)
80                     elseif k == "Time"           then mpd_now.time         = v
81                     elseif k == "elapsed"        then mpd_now.elapsed      = string.match(v, "%d+")
82                     elseif k == "song"           then mpd_now.pls_pos      = v
83                     elseif k == "playlistlength" then mpd_now.pls_len      = v
84                     elseif k == "repeat"         then mpd_now.repeat_mode  = v ~= "0"
85                     elseif k == "single"         then mpd_now.single_mode  = v ~= "0"
86                     elseif k == "random"         then mpd_now.random_mode  = v ~= "0"
87                     elseif k == "consume"        then mpd_now.consume_mode = v ~= "0"
88                     end
89                 end
90             end
91
92             mpd_notification_preset.text = string.format("%s (%s) - %s\n%s", mpd_now.artist,
93                                            mpd_now.album, mpd_now.date, mpd_now.title)
94             widget = mpd.widget
95             settings()
96
97             if mpd_now.state == "play" then
98                 if notify == "on" and mpd_now.title ~= helpers.get_map("current mpd track") then
99                     helpers.set_map("current mpd track", mpd_now.title)
100
101                     if followtag then mpd_notification_preset.screen = focused() end
102
103                     local common =  {
104                         preset      = mpd_notification_preset,
105                         icon        = default_art,
106                         icon_size   = cover_size,
107                         replaces_id = mpd.id
108                     }
109
110                     if not string.match(mpd_now.file, "http.*://") then -- local file instead of http stream
111                         local path   = string.format("%s/%s", music_dir, string.match(mpd_now.file, ".*/"))
112                         local cover  = string.format("find '%s' -maxdepth 1 -type f | egrep -i -m1 '%s'",
113                                        path:gsub("'", "'\\''"), cover_pattern)
114                         helpers.async({ shell, "-c", cover }, function(current_icon)
115                             common.icon = current_icon:gsub("\n", "")
116                             if #common.icon == 0 then common.icon = nil end
117                             mpd.id = naughty.notify(common).id
118                         end)
119                     else
120                         mpd.id = naughty.notify(common).id
121                     end
122
123                 end
124             elseif mpd_now.state ~= "pause" then
125                 helpers.set_map("current mpd track", nil)
126             end
127         end)
128     end
129
130     mpd.timer = helpers.newtimer("mpd", timeout, mpd.update, true, true)
131
132     return mpd
133 end
134
135 return factory