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