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calendar: sed spaces; #170 #174
[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 icons_dir    = require("lain.helpers").icons_dir
10
11 local awful        = require("awful")
12 local beautiful    = require("beautiful")
13 local naughty      = require("naughty")
14
15 local io           = { popen = io.popen }
16 local os           = { date = os.date }
17 local mouse        = mouse
18 local string       = { format = string.format,
19                        sub    = string.sub,
20                        gsub   = string.gsub }
21 local tonumber     = tonumber
22
23 local setmetatable = setmetatable
24
25 -- Calendar notification
26 -- lain.widgets.calendar
27 local calendar = {}
28 local cal_notification = nil
29
30 function calendar:hide()
31     if cal_notification ~= nil then
32         naughty.destroy(cal_notification)
33         cal_notification = nil
34     end
35 end
36
37 function calendar:show(t_out, inc_offset, scr)
38     calendar:hide()
39
40     local f, c_text
41     local offs  = inc_offset or 0
42     local tims  = t_out or 0
43     local today = tonumber(os.date('%d'))
44     local init_t = string.format("%s %s | sed -e 's/[\b]\\{3\\}//g'",
45                    calendar.cal, calendar.post_cal)
46
47     calendar.offset = calendar.offset + offs
48
49     if offs == 0 or calendar.offset == 0
50     then -- current month showing, today highlighted
51         calendar.offset = 0
52         calendar.notify_icon = calendar.icons .. today .. ".png"
53
54         -- bg and fg inverted to highlight today
55         f = io.popen(string.format("%s -e '0,/%d $/ s/ %d /<b> <span foreground=\"%s\" background=\"%s\">%d<\\/span> <\\/b>/'",
56                      init_t, today, today, calendar.bg, calendar.fg, today))
57
58     else -- no current month showing, no day to highlight
59        local month = tonumber(os.date('%m'))
60        local year = tonumber(os.date('%Y'))
61
62        month = month + calendar.offset
63
64        if month > 12 then
65            month = month % 12
66            year = year + 1
67            if month <= 0 then
68                month = 12
69            end
70        elseif month < 1 then
71            month = month + 12
72            year = year - 1
73            if month <= 0 then
74                month = 1
75            end
76        end
77
78        calendar.notify_icon = nil
79
80        f = io.popen(string.format('%s %s %s %s', calendar.cal, month, year, calendar.post_cal))
81     end
82
83     c_text = "<tt><span font='" .. calendar.font .. " "
84              .. calendar.font_size .. "'><b>"
85              .. f:read() .. "</b>\n\n"
86              .. f:read() .. "\n"
87              .. f:read("*all"):gsub("\n*$", "")
88              .. "</span></tt>"
89     f:close()
90
91     if calendar.followmouse then
92         scrp = mouse.screen
93     else
94         scrp = scr or calendar.scr_pos
95     end
96
97     cal_notification = naughty.notify({
98         text = c_text,
99         icon = calendar.notify_icon,
100         position = calendar.position,
101         fg = calendar.fg,
102         bg = calendar.bg,
103         timeout = tims,
104         screen = scrp
105     })
106 end
107
108 function calendar:attach(widget, args)
109     local args = args or {}
110
111     calendar.cal         = args.cal or "/usr/bin/cal"
112     calendar.post_cal    = args.post_cal or ""
113     calendar.icons       = args.icons or icons_dir .. "cal/white/"
114     calendar.font        = args.font or beautiful.font:gsub(" %d.*", "")
115     calendar.font_size   = tonumber(args.font_size) or 11
116     calendar.fg          = args.fg or beautiful.fg_normal or "#FFFFFF"
117     calendar.bg          = args.bg or beautiful.bg_normal or "#000000"
118     calendar.position    = args.position or "top_right"
119     calendar.scr_pos     = args.scr_pos or 1
120     calendar.followmouse = args.followmouse or false
121
122     calendar.fg = string.sub(calendar.fg, 1, 7)
123     calendar.bg = string.sub(calendar.bg, 1, 7)
124
125     calendar.offset      = 0
126     calendar.notify_icon = nil
127
128     widget:connect_signal("mouse::enter", function () calendar:show(0, 0, calendar.scr_pos) end)
129     widget:connect_signal("mouse::leave", function () calendar:hide() end)
130     widget:buttons(awful.util.table.join(awful.button({ }, 1, function ()
131                                              calendar:show(0, -1, calendar.scr_pos) end),
132                                          awful.button({ }, 3, function ()
133                                              calendar:show(0, 1, calendar.scr_pos) end),
134                                          awful.button({ }, 4, function ()
135                                              calendar:show(0, -1, calendar.scr_pos) end),
136                                          awful.button({ }, 5, function ()
137                                              calendar:show(0, 1, calendar.scr_pos) end)))
138 end
139
140 return setmetatable(calendar, { __call = function(_, ...) return create(...) end })