awesome: calendar widget

[dotfiles.git] / awesome / widgets / calendar.lua

diff --git a/awesome/widgets/calendar.lua b/awesome/widgets/calendar.lua
new file mode 100644 (file)
index 0000000..cdf58ae
--- /dev/null
+++ b/awesome/widgets/calendar.lua
@@ -0,0 +1,97 @@
+--[[
+
+     Licensed under GNU General Public License v2
+      * (c) 2014-, Samir Benmendil
+      * (c) -2013, Luke Bonham (lain)
+
+--]]
+
+local awful        = require("awful")
+local beautiful    = require("beautiful")
+local naughty      = require("naughty")
+
+local io           = { popen = io.popen }
+local os           = { date = os.date }
+local tonumber     = tonumber
+
+local calendar = {}
+calendar.cal       = "/usr/bin/cal --color=always"
+calendar.font      = "monospace 10"
+calendar.fg        = beautiful.fg_normal or "#FFFFFF"
+calendar.bg        = beautiful.bg_normal or "#FFFFFF"
+calendar.position  = "top_right"
+calendar.offset = 0
+
+local calwidget = awful.widget.textclock(" %a %b %d, %k:%M ", 10)
+
+calwidget:connect_signal("mouse::enter", function () calendar:show(0) end)
+calwidget:connect_signal("mouse::leave", function () calendar:hide() end)
+calwidget:buttons(awful.util.table.join(
+    awful.button({ }, 1, function () calendar:show(-1) end),
+    awful.button({ }, 3, function () calendar:show( 1) end),
+    awful.button({ }, 4, function () calendar:show(-1) end),
+    awful.button({ }, 5, function () calendar:show( 1) end)))
+
+-- Calendar notification
+local cal_notification = nil
+
+function calendar:hide()
+    if cal_notification ~= nil then
+        naughty.destroy(cal_notification)
+        cal_notification = nil
+    end
+end
+
+function calendar:show(inc_offset)
+    calendar:hide()
+
+    local offs = inc_offset or 0
+
+    calendar.offset = calendar.offset + offs
+
+    local today = tonumber(os.date('%d'))
+    local month = tonumber(os.date('%m'))
+    local year  = tonumber(os.date('%Y'))
+
+    if offs ~= 0 or calendar.offset ~= 0
+    then -- no current month showing, no day to highlight
+        month = month + calendar.offset
+
+        if month > 12 then
+            month = month % 12
+            year = year + 1
+            if month <= 0 then
+                month = 12
+            end
+        elseif month < 1 then
+            month = month + 12
+            year = year - 1
+            if month <= 0 then
+                month = 1
+            end
+        end
+    end
+
+    local f = io.popen(calendar.cal .. ' ' .. month .. ' ' .. year)
+
+    local text = string.format("<span font='%s'><b>%s</b>\n%s</span>",
+        calendar.font,
+        f:read(),
+        f:read("*a"):gsub("%s\n","\n"):gsub("%s+$", ""))
+    f:close()
+
+    text = text:gsub("\e%[7m","<b><span "
+        .. "foreground='"..calendar.bg .. "' "
+        .. "background='"..calendar.fg .. "'>")
+    text = text:gsub("\e%[27m", "</span></b>")
+
+    cal_notification = naughty.notify({
+        text = text,
+        position = calendar.position,
+        fg = calendar.fg,
+        bg = calendar.bg,
+        screen = mouse.screen
+    })
+end
+
+return calwidget