telak: import

Signed-off-by: Julien Danjou <julien@danjou.info>

lib/telak.lua.in

@@ -0,0 +1,77 @@
+----------------------------------------------------------------------------
+-- @author Julien Danjou <julien@danjou.info>
+-- @copyright 2008 Julien Danjou
+-- @release @AWESOME_VERSION@
+----------------------------------------------------------------------------
+
+-- Grab environment
+local os = os
+local otable = otable
+local setmetatable = setmetatable
+local util = require("awful.util")
+local hooks = require("awful.hooks")
+local capi =
+{
+    wibox = wibox,
+    widget = widget,
+    image = image
+}
+
+--- Root window image display library
+module("telak")
+
+command = "wget -q -O "
+
+local data = otable()
+
+-- Update a telak wibox.
+-- @param w The wibox to update.
+local function update(w)
+    local tmp = os.tmpname()
+    os.execute(command .. tmp .. " '" .. data[w].image .. "'")
+    local img = capi.image(tmp)
+    if img then
+        w:geometry({ width = img.width, height = img.height })
+        w.widgets.image = img
+    else
+        w.visible = false
+    end
+    os.remove(tmp)
+end
+
+--- Create a new telak wibox. This will be automagically update to show a
+-- local or remote image.
+-- @param args A table with arguments: image is the local or remote image.
+-- Timer can be specified to set the time in seconds between two update.
+-- Default is 300 seconds.
+-- @return The wibox. You need to attach it to a screen and to set its
+-- coordinates as you want.
+local function new(_, args)
+    if not args or not args.image then return end
+
+    -- Create wibox
+    local w = capi.wibox({ position = "floating" })
+    data[w] = { image = args.image }
+    local wimg = capi.widget({ type = "imagebox" })
+    w.widgets = wimg
+
+    data[w].cb = function () update(w) end
+    hooks.timer.register(args.timer or 3, data[w].cb)
+
+    update(w)
+
+    return w
+end
+
+--- Delete a telak wibox.
+-- @param w The wibox.
+function delete(w)
+    if data[w] then
+        hooks.timer.unregister(data[w].cb)
+        data[w] = nil
+    end
+end
+
+setmetatable(_M, { __call = new })
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80