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0793bc0e2f056cb889f56288d237008fa29318af
[etc/awesome.git] / widgets / calendar.lua
1
2 --[[
3                                                   
4      Licensed under GNU General Public License v2 
5       * (c) 2013, Luke Bonham                     
6                                                   
7 --]]
8
9 local helpers      = require("lain.helpers")
10 local markup       = require("lain.util.markup")
11 local awful        = require("awful")
12 local naughty      = require("naughty")
13 local os           = { date   = os.date }
14 local string       = { format = string.format,
15                        gsub   = string.gsub }
16 local ipairs       = ipairs
17 local tonumber     = tonumber
18 local setmetatable = setmetatable
19
20 -- Calendar notification
21 -- lain.widgets.calendar
22 local calendar = { offset = 0 }
23
24 function calendar.hide()
25     if not calendar.notification then return end
26     naughty.destroy(calendar.notification)
27     calendar.notification = nil
28 end
29
30 function calendar.show(t_out, inc_offset, scr)
31     local today = os.date("%d")
32     local offs = inc_offset or 0
33     local f
34
35     calendar.offset = calendar.offset + offs
36
37     local current_month = (offs == 0 or calendar.offset == 0)
38
39     if current_month then -- today highlighted
40         calendar.offset = 0
41         calendar.notify_icon = string.format("%s%s.png", calendar.icons, today)
42         f = calendar.cal
43     else -- no current month showing, no day to highlight
44        local month = tonumber(os.date("%m"))
45        local year  = tonumber(os.date("%Y"))
46
47        month = month + calendar.offset
48
49        while month > 12 do
50            month = month - 12
51            year = year + 1
52        end
53
54        while month < 1 do
55            month = month + 12
56            year = year - 1
57        end
58
59        calendar.notify_icon = nil
60        f = string.format("%s %s %s", calendar.cal, month, year)
61     end
62
63     if calendar.followtag then
64         calendar.notification_preset.screen = awful.screen.focused()
65     else
66         calendar.notification_preset.screen = src or 1
67     end
68
69     helpers.async(f, function(ws)
70         fg, bg = calendar.notification_preset.fg, calendar.notification_preset.bg
71         ws = ws:gsub("%c%[%d+[m]?%d+%c%[%d+[m]?", markup.bold(markup.color(bg, fg, today)))
72         calendar.hide()
73         calendar.notification = naughty.notify({
74             preset      = calendar.notification_preset,
75             text        = ws:gsub("\n*$", ""),
76             icon        = calendar.notify_icon,
77             timeout     = t_out or calendar.notification_preset.timeout or 5
78         })
79     end)
80 end
81
82 function calendar.attach(widget)
83     widget:connect_signal("mouse::enter", function () calendar.show(0) end)
84     widget:connect_signal("mouse::leave", function () calendar.hide() end)
85     widget:buttons(awful.util.table.join(awful.button({ }, 1, function ()
86                                              calendar.show(0, -1, calendar.scr_pos) end),
87                                          awful.button({ }, 3, function ()
88                                              calendar.show(0, 1, calendar.scr_pos) end),
89                                          awful.button({ }, 4, function ()
90                                              calendar.show(0, -1, calendar.scr_pos) end),
91                                          awful.button({ }, 5, function ()
92                                              calendar.show(0, 1, calendar.scr_pos) end)))
93 end
94
95 local function worker(args)
96     local args                   = args or {}
97     calendar.cal                 = args.cal or "/usr/bin/cal --color=always"
98     calendar.attach_to           = args.attach_to or {}
99     calendar.followtag           = args.followtag or false
100     calendar.icons               = args.icons or helpers.icons_dir .. "cal/white/"
101     calendar.notification_preset = args.notification_preset
102
103     if not calendar.notification_preset then
104         calendar.notification_preset = {
105             font = "Monospace 10",
106             fg   = "#FFFFFF",
107             bg   = "#000000"
108         }
109     end
110
111     for i, widget in ipairs(calendar.attach_to) do calendar.attach(widget) end
112 end
113
114 return setmetatable(calendar, { __call = function(_, ...) return worker(...) end })