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readme updated
[etc/awesome.git] / widgets / maildir.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013,      Luke Bonham                
6       * (c) 2010-2012, Peter Hofmann              
7                                                   
8 --]]
9
10 local markup          = require("lain.util.markup")
11 local run_in_terminal = require("lain.helpers").run_in_terminal
12
13 local awful           = require("awful")
14 local beautiful       = require("beautiful")
15 local wibox           = require("wibox")
16
17 local io              = io
18 local os              = { getenv = os.getenv }
19 local pairs           = pairs
20 local string          = { len    = string.len,
21                           match  = string.match }
22 local table           = { sort   = table.sort }
23
24 local setmetatable    = setmetatable
25
26 -- Maildir check
27 -- lain.widgets.maildir
28 local maildir = {}
29
30 function worker(args)
31     local args = args or {}
32     local mailpath = args.mailpath or os.getenv("HOME") .. "/Mail"
33     local ignore_boxes = args.ignore_boxes or {}
34     local refresh_timeout = args.refresh_timeout or 60
35     local header = args.header or " Mail "
36     local header_color = args.header_color or beautiful.fg_normal or "#FFFFFF"
37     local color_newmail = args.color_newmail or beautiful.fg_focus or "#FFFFFF"
38     local color_nomail = args.color_nomail or beautiful.fg_normal or "#FFFFFF"
39     local app = args.app or "mutt"
40     local shadow = args.shadow or false
41
42     local mymailcheck = wibox.widget.textbox()
43     local mymailcheckupdate = function()
44         -- Find pathes to mailboxes.
45         local p = io.popen("find " .. mailpath ..
46                            " -mindepth 1 -maxdepth 1 -type d" ..
47                            " -not -name .git")
48         local boxes = {}
49         local line = ""
50         repeat
51             line = p:read("*l")
52             if line ~= nil
53             then
54                 -- Find all files in the "new" subdirectory. For each
55                 -- file, print a single character (no newline). Don't
56                 -- match files that begin with a dot.
57                 -- Afterwards the length of this string is the number of
58                 -- new mails in that box.
59                 local np = io.popen("find " .. line ..
60                                     "/new -mindepth 1 -type f " ..
61                                     "-not -name '.*' -printf a")
62                 local mailstring = np:read("*all")
63
64                 -- Strip off leading mailpath.
65                 local box = string.match(line, mailpath .. "/*([^/]+)")
66                 local nummails = string.len(mailstring)
67                 if nummails > 0
68                 then
69                     boxes[box] = nummails
70                 end
71             end
72         until line == nil
73
74         table.sort(boxes)
75
76         local newmail = ""
77         local count = 0
78         for box, number in pairs(boxes)
79         do
80             count = count + 1
81             -- Add this box only if it's not to be ignored.
82             if not util.element_in_table(box, ignore_boxes)
83             then
84                 if newmail == ""
85                 then
86                     newmail = box .. "(" .. number .. ")"
87                 else
88                     newmail = newmail .. ", " ..
89                               box .. "(" .. number .. ")"
90                 end
91             end
92         end
93
94         if count == 1 then
95             -- it will be only executed once
96             for box, number in pairs(boxes)
97             do  -- it's useless to show only INBOX(x)
98                 if box == "INBOX" then newmail = number end
99             end
100         end
101
102         if newmail == ""
103         then
104             if shadow
105             then
106                 mymailcheck:set_text('')
107             else
108                 myimapcheck:set_markup(markup(color_nomail, " no mail "))
109             end
110         else
111             myimapcheck:set_markup(" " .. markup(header_color, header) ..
112                                    markup(color_newmail, newmail) .. " ")
113         end
114     end
115
116     local mymailchecktimer = timer({ timeout = refresh_timeout })
117     mymailchecktimer:connect_signal("timeout", mymailcheckupdate)
118     mymailchecktimer:start()
119     mymailcheck:buttons(awful.util.table.join(
120         awful.button({}, 0,
121             function()
122                 run_in_terminal(app)
123             end)
124     ))
125
126     return mymailcheck
127 end
128
129 return setmetatable(maildir, { __call = function(_, ...) return worker(...) end })