79 lines
2.1 KiB
Lua
79 lines
2.1 KiB
Lua
----------------------------------------------------------------------------
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-- @author Julien Danjou <julien@danjou.info>
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-- @copyright 2008 Julien Danjou
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-- @release @AWESOME_VERSION@
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----------------------------------------------------------------------------
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-- Grab environment
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local os = os
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local io = io
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local http = require("socket.http")
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local ltn12 = require("ltn12")
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local setmetatable = setmetatable
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local util = require("awful.util")
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local capi =
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{
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timer = timer,
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wibox = wibox,
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widget = widget,
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image = image
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}
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--- Root window image display library
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module("telak")
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local data = setmetatable({}, { __mode = 'k' })
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-- Update a telak wibox.
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-- @param w The wibox to update.
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local function update(w)
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local tmp = os.tmpname()
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http.request{url = data[w].image, sink = ltn12.sink.file(io.open(tmp, "w"))}
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local img = capi.image(tmp)
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if img then
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w:geometry({ width = img.width, height = img.height })
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w.widgets.image = img
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else
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w.visible = false
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end
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os.remove(tmp)
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end
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--- Create a new telak wibox. This will be automagically update to show a
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-- local or remote image.
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-- @param args A table with arguments: image is the local or remote image.
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-- Timer can be specified to set the time in seconds between two update.
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-- Default is 300 seconds.
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-- @return The wibox. You need to attach it to a screen and to set its
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-- coordinates as you want.
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local function new(_, args)
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if not args or not args.image then return end
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-- Create wibox
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local w = capi.wibox{}
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data[w] = { image = args.image }
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local wimg = capi.widget({ type = "imagebox" })
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w.widgets = wimg
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data[w].timer = capi.timer { timeout = args.timer or 300 }
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data[w].timer:add_signal("timeout", function update(w) end)
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data[w].timer:start()
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update(w)
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return w
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end
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--- Delete a telak wibox.
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-- @param w The wibox.
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function delete(w)
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if data[w] then
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data[w].timer:stop()
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data[w] = nil
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end
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end
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setmetatable(_M, { __call = new })
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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