awesome/widgets/calendar.lua

   1 --[[
   2
   3      Licensed under GNU General Public License v2
   4       * (c) 2014-, Samir Benmendil
   5       * (c) -2013, Luke Bonham (lain)
   6
   7 --]]
   8
   9 local awful        = require("awful")
  10 local beautiful    = require("beautiful")
  11 local naughty      = require("naughty")
  12 local wibox        = require("wibox")
  13
  14 local io           = { popen = io.popen }
  15 local os           = { date = os.date }
  16 local tonumber     = tonumber
  17
  18 local calendar = {}
  19 calendar.cal       = "/usr/bin/cal --color=always"
  20 calendar.font      = "monospace 10"
  21 calendar.fg        = beautiful.fg_normal or "#FFFFFF"
  22 calendar.bg        = beautiful.bg_normal or "#FFFFFF"
  23 calendar.position  = "top_right"
  24 calendar.offset = 0
  25
  26 local calwidget = wibox.widget.textclock(" %a %b %d, %H:%M ", 10)
  27
  28 calwidget:connect_signal("mouse::enter", function () calendar:show(0) end)
  29 calwidget:connect_signal("mouse::leave", function () calendar:hide() end)
  30 calwidget:buttons(awful.util.table.join(
  31     awful.button({ }, 1, function () calendar:show(-1) end),
  32     awful.button({ }, 3, function () calendar:show( 1) end),
  33     awful.button({ }, 4, function () calendar:show(-1) end),
  34     awful.button({ }, 5, function () calendar:show( 1) end)))
  35
  36 -- Calendar notification
  37 local cal_notification = nil
  38
  39 function calendar:hide()
  40     if cal_notification ~= nil then
  41         naughty.destroy(cal_notification)
  42         cal_notification = nil
  43     end
  44 end
  45
  46 function calendar:show(inc_offset)
  47     calendar:hide()
  48
  49     local offs = inc_offset or 0
  50
  51     calendar.offset = calendar.offset + offs
  52
  53     local today = tonumber(os.date('%d'))
  54     local month = tonumber(os.date('%m'))
  55     local year  = tonumber(os.date('%Y'))
  56
  57     if offs ~= 0 or calendar.offset ~= 0
  58     then -- no current month showing, no day to highlight
  59         month = month + calendar.offset
  60
  61         if month > 12 then
  62             month = month % 12
  63             year = year + 1
  64             if month <= 0 then
  65                 month = 12
  66             end
  67         elseif month < 1 then
  68             month = month + 12
  69             year = year - 1
  70             if month <= 0 then
  71                 month = 1
  72             end
  73         end
  74     end
  75
  76     local f = io.popen(calendar.cal .. ' ' .. month .. ' ' .. year)
  77
  78     local text = string.format("<span font='%s'><b>%s</b>\n%s</span>",
  79         calendar.font,
  80         f:read(),
  81         f:read("*a"):gsub("%s\n","\n"):gsub("%s+$", ""))
  82     f:close()
  83
  84     text = text:gsub("\e%[7m","<b><span "
  85         .. "foreground='"..calendar.bg .. "' "
  86         .. "background='"..calendar.fg .. "'>")
  87     text = text:gsub("\e%[27m", "</span></b>")
  88
  89     cal_notification = naughty.notify({
  90         text = text,
  91         position = calendar.position,
  92         fg = calendar.fg,
  93         bg = calendar.bg,
  94         screen = mouse.screen
  95     })
  96 end
  97
  98 return calwidget