How to randomly change wallpaper in Awesome 3.5?

Question

Hello there,
Sorry this may be a noob question.
In the rc.lua file of Awesome 3.5, the wallpaper is set like this.
for s = 1, screen.count() do
gears.wallpaper.maximized("Your wallpaper here", s, true)
end
How would I go about making this randomly choose wallpapers from a directory?
Thanks

Answer 1

I hope this isn't resurrecting a dead thread, but I wrote an almost purely lua version (with ls and grep) based off of these comments, stackoverflow for scandir in lua, and the awesome wiki's 3.4 wallpaper changer.
-- {{{ Random Wallpapers
-- Get the list of files from a directory. Must be all images or folders and non-empty.
function scanDir(directory)
local i, fileList, popen = 0, {}, io.popen
for filename in popen([[find "]] ..directory.. [[" -type f]]):lines() do
i = i + 1
fileList[i] = filename
end
return fileList
end
wallpaperList = scanDir("/home/david/Images/Wallpaper SFW")
-- Apply a random wallpaper on startup.
gears.wallpaper.maximized(wallpaperList[math.random(1, #wallpaperList)], s, true)
-- Apply a random wallpaper every changeTime seconds.
changeTime = 600
wallpaperTimer = timer { timeout = changeTime }
wallpaperTimer:connect_signal("timeout", function()
gears.wallpaper.maximized(wallpaperList[math.random(1, #wallpaperList)], s, true)
-- stop the timer (we don't need multiple instances running at the same time)
wallpaperTimer:stop()
--restart the timer
wallpaperTimer.timeout = changeTime
wallpaperTimer:start()
end)
-- initial start when rc.lua is first run
wallpaperTimer:start()
Last edited by teratomata (2013-03-14 05:28:17)