#!/usr/bin/env python
-import sys, os, os.path, socket
-from optparse import OptionParser, Values
+VERSION = "2.0"
-VERSION = "1.1"
-CACHE_LOCATION = os.path.expanduser('~/.randombg2_filelist_cache')
-SOCKET_FILE = os.path.expanduser('~/tmp/tmp_socket')
-try:
- # These are my libraries...
- import GregDebug, AsyncSocket, WallChanger, SigHandler
-
- from GregDebug import debug, setDebugLevel, DEBUG_LEVEL_DEBUG, DEBUG_LEVEL_LOW, DEBUG_LEVEL_MEDIUM, DEBUG_LEVEL_HIGH, DEBUG_INCREMENT
+import asyncore, asynchat, socket
+import os, os.path, sys, time
+from optparse import OptionParser
+import logging
+from logging import debug, info, warning, error, critical
+logging.basicConfig(format="%(levelname)s: %(message)s")
+try:
+ # Required libraries
+ import asyncsched
from FileLists import *
+ import WallChanger
except ImportError, e:
- print >>sys.stderr, "Missing libraries!\nExiting..."
+ critical("Missing libraries! Exiting...")
sys.exit(1)
-def buildparser():
- def buildOptions():
- pass
- def addfilestolist(optclass, opt, value, parser, fileList):
- fo = open(value)
- for line in fo:
- fileList.list.append(line.strip())
- fo.close()
- fileList.allowAllRandom = False
+
+class Cycler(object):
+ def __init__(self, options, paths):
+ filelist = self.find_files(options, paths)
+ if not filelist.hasImages():
+ error("No images were found. Exiting...")
+ sys.exit(1)
+
+ debug("Initilizing RandomBG")
+ self.randombg = WallChanger.RandomBG(filelist, options.background_colour, options.permanent)
+ self.cycle_time = options.cycle_time
+
+ self.task = None
+ self.cmd_next()
+
+ def find_files(self, options, paths):
+ if options.all_random:
+ filelist = AllRandomFileList()
+ elif options.folder_random:
+ filelist = FolderRandomFileList()
+ else:
+ filelist = RandomFileList()
+
+ for path in paths:
+ filelist.doAddPath(path)
+
+ if filelist.attemptCacheLoad(options.history_filename):
+ debug("Loaded cache successfully")
+ else:
+ debug("Could not load cache")
+ filelist.doScanPaths()
+ return filelist
+
+ def cmd_reset(self):
+ def next():
+ self.randombg.cycleNext()
+ self.task = None
+ self.cmd_reset()
+
+ if self.task is not None:
+ self.task.cancel()
+ self.task = asyncsched.schedule(self.cycle_time, next)
+ debug("Reset timer for %s seconds" % self.cycle_time)
+
+ def cmd_reload(self):
+ self.randombg.cycleReload()
+ self.cmd_reset()
+
+ def cmd_next(self):
+ self.randombg.cycleNext()
+ self.cmd_reset()
+
+ def cmd_prev(self):
+ self.randombg.cyclePrev()
+ self.cmd_reset()
+
+ def cmd_rescan(self):
+ self.randombg.filelist.doScanPaths()
+ self.cmd_next()
+
+ def cmd_pause(self):
+ if self.task is not None:
+ self.task.cancel()
+ self.task = None
+
+class Server(asynchat.async_chat):
+ def __init__(self, cycler, conn, addr):
+ asynchat.async_chat.__init__(self, conn=conn)
+ self.cycler = cycler
+ self.ibuffer = []
+ self.set_terminator("\n")
+
+ def collect_incoming_data(self, data):
+ self.ibuffer.append(data)
+
+ def found_terminator(self):
+ line = "".join(self.ibuffer).lower()
+ self.ibuffer = []
+ prefix, cmd = line.split(None, 1)
+ if prefix != "cmd":
+ debug('Bad line received "%s"' % line)
+ return
+ if hasattr(self.cycler, "cmd_" + cmd):
+ debug('Executing command "%s"' % cmd)
+ getattr(self.cycler, "cmd_" + cmd)()
+ else:
+ debug('Unknown command received "%s"' % cmd)
+
+
+
+class Listener(asyncore.dispatcher):
+ def __init__(self, socket_filename, randombg):
+ asyncore.dispatcher.__init__(self)
+ self.randombg = randombg
+ self.create_socket(socket.AF_UNIX, socket.SOCK_STREAM)
+ self.bind(socket_filename)
+ self.listen(2) # Backlog = 2
+
+ def handle_accept(self):
+ conn, addr = self.accept()
+ Server(self.randombg, conn, addr)
+
+def do_server(options, paths):
+ try:
+ cycler = Cycler(options, paths)
+ listener = Listener(options.socket_filename, cycler)
+ asyncsched.loop()
+ except KeyboardInterrupt:
+ print
+ finally:
+ # Make sure that the socket is cleaned up
+ try:
+ os.unlink(options.socket_filename)
+ except:
+ pass
+
+def do_client(options, args):
+ if len(args) == 0:
+ args = ["next"]
+ sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+ sock.connect(options.socket_filename)
+ sock = sock.makefile()
+ for i, cmd in enumerate(args):
+ sock.write("cmd %s\n" % cmd)
+ if i+1 != len(args):
+ time.sleep(options.cycle_time)
+ sock.close()
+
+
+def build_parser():
parser = OptionParser(version="%prog " + VERSION,
- description = "Picks a random background image",
- usage = "%prog [options] dir [dir2 ...]")
+ description = "Cycles through random background images.",
+ usage =
+ "\n(server) %prog [options] dir [dir2 ...]"
+ "\n(client) %prog [options] [next|prev|rescan|reload|pause] [...]"
+ "\nThe first instance to be run will be the server.\n"
+ )
parser.add_option("-p", "--permanent",
action="store_true", dest="permanent", default=False,
help="Make the background permanent. Note: This will cause all machines logged in with this account to simultaneously change background [Default: %default]")
- parser.add_option("-q", "--quiet", "--silent",
- action="count", dest="quiet", default=0,
- help="Make the script quiet (good for running from a shell script)")
parser.add_option("-v", '-d', "--verbose", "--debug",
action="count", dest="verbose", default=0,
help="Make the louder (good for debugging, or those who are curious)")
parser.add_option("--folder-random",
action="store_true", dest="folder_random", default=False,
help="Give each folder an equal chance of having an image selected from it")
- #parser.add_option("--file-list",
- # action="callback", callback=addfilestolist, type="string", callback_args=(fileList,),
- # help="Adds the list of images from the external file")
- parser.add_option("--cycle",
- action="store", type="int", default=0, dest="cycle_time",
+ parser.add_option("--cycle-time",
+ action="store", type="int", default=1800, dest="cycle_time",
help="Cause the image to cycle every X seconds")
+ parser.add_option("--socket",
+ action="store", type="string", dest="socket_filename", default=os.path.expanduser('~/tmp/tmp_socket'),
+ help="Location of the command/control socket.")
+ parser.add_option("--history-file",
+ action="store", type="string", dest="history_filename", default=os.path.expanduser('~/.randombg_historyfile'),
+ help="Stores the location of the last image to be loaded.")
return parser
-
-def createIPCClient(domainSocketName):
- sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
- sock.connect(domainSocketName)
- sock_file = sock.makefile()
- return sock_file
-
def main():
- if os.path.exists(SOCKET_FILE):
- # We are the client
- sock = createIPCClient(SOCKET_FILE)
- print >>sock, "CMD NEXT"
-### print >>sock, "CMD PREVIOUS"
-### print >>sock, "CMD PAUSE"
- sock.close()
- else:
- # We are the server
- try:
- Server(SOCKET_FILE)()
- finally:
- # Make sure that the socket is cleaned up
- os.unlink(SOCKET_FILE)
-
-class Server(object):
- def __init__(self, domainSocketName):
- self.socketHandler = self._createIPCServer(domainSocketName)
- self.callbackObj = None
-
- parser = buildparser()
- useroptions, paths = parser.parse_args(sys.argv[1:])
-
- setDebugLevel(DEBUG_INCREMENT * (useroptions.quiet - useroptions.verbose))
- debug("Just set GregDebug.DEBUG_LEVEL to %d" % GregDebug.DEBUG_LEVEL, DEBUG_LEVEL_LOW)
-
- self.filelist = self.__getFileList(useroptions, paths)
-
- if not self.filelist.hasImages():
- print >>sys.stderr, "No files!"
- parser.print_help()
- sys.exit(1)
-
- debug("Initilizing RandomBG", DEBUG_LEVEL_DEBUG)
- self.randombg = WallChanger.RandomBG(self.filelist, useroptions.background_colour, useroptions.permanent)
+ parser = build_parser()
+ options, args = parser.parse_args(sys.argv[1:])
- # Store some of the other useful options
- self.cycle_time = useroptions.cycle_time
+ logging.basicConfig(level=10*options.verbose)
- def __getFileList(self, useroptions, paths):
- if useroptions.all_random:
- filelist = AllRandomFileList()
- elif useroptions.folder_random:
- filelist = FolderRandomFileList()
- else:
- filelist = RandomFileList()
-
- for path in paths:
- filelist.doAddPath(path)
-
- if filelist.attemptCacheLoad(CACHE_LOCATION):
- debug("Loaded cache successfully", DEBUG_LEVEL_LOW)
- else:
- debug("Could not load cache")
- filelist.doScanPaths()
- return filelist
+ if os.path.exists(options.socket_filename):
+ do_client(options, args)
+ else:
+ do_server(options, args)
- def cycle_reload(self):
- debug("Reloading wallpaper", DEBUG_LEVEL_LOW)
- ret = self.randombg.cycleReload()
- if not ret:
- debug('Could not set wallpaper. Returned "%s"' % ret)
- debug('About to sleep for "%d" seconds' % self.cycle_time, DEBUG_LEVEL_LOW)
- self.callbackObj = self.socketHandler.addCallback(self.cycle_time, self.cycle_next)
- return ret
-
- def cycle_next(self):
- debug("Cycling wallpaper", DEBUG_LEVEL_LOW)
- ret = self.randombg.cycleNext()
- if not ret:
- debug('Could not set wallpaper. Returned "%s"' % ret)
- debug('About to sleep for "%d" seconds' % self.cycle_time, DEBUG_LEVEL_LOW)
- self.callbackObj = self.socketHandler.addCallback(self.cycle_time, self.cycle_next)
- self.filelist.doStoreCache(CACHE_LOCATION)
- return ret
-
- def cycle_prev(self):
- debug("Cycling wallpaper", DEBUG_LEVEL_LOW)
- ret = self.randombg.cyclePrev()
- if not ret:
- debug('Could not set wallpaper. Returned "%s"' % ret)
- debug('About to sleep for "%d" seconds' % self.cycle_time, DEBUG_LEVEL_LOW)
- # Yes this is ment to be cycle_next
- self.callbackObj = self.socketHandler.addCallback(self.cycle_time, self.cycle_next)
- self.filelist.doStoreCache(CACHE_LOCATION)
- return ret
-
- def _finished(self):
- self.filelist.doStoreCache(CACHE_LOCATION)
-
- def __call__(self):
- # Callback immediatly
- self.socketHandler.addCallback(0.0, self.cycle_reload)
- # Now go into the main loop
- self.socketHandler.mainLoop()
- # Clean up time
- self._finished()
-
- def _createIPCServer(self, domainSocketName):
- """Create the Server socket, and start listening for clients"""
-
- class Handler(object):
- def __init__(self, parent):
- self.parent = parent
- def _removeOldTimer(self):
- if self.parent.callbackObj:
- self.parent.socketHandler.removeCallback(self.parent.callbackObj)
- def _cmd_PAUSE(self):
- debug("Pausing randombg")
- self._removeOldTimer()
- def _cmd_NEXT(self):
- self._removeOldTimer()
- self.parent.cycle_next()
- def _cmd_PREVIOUS(self):
- self._removeOldTimer()
- self.parent.cycle_prev()
- def _cmd_RESCAN(self):
- self.parent.filelist.doScanPaths()
- self._cmd_NEXT()
- def _cmd_RELOAD(self):
- self._removeOldTimer()
- self.parent.cycle_reload()
- def _processLine(self, line):
- prefix, cmd = line.split(None, 1)
- if prefix != 'CMD':
- debug('Unknown command received "%s"' % line)
- return
- if hasattr(self, '_cmd_%s' % cmd):
- getattr(self, '_cmd_%s' % cmd)()
- else:
- debug('Unknown command received "%s"' % cmd)
- def __call__(self, lineReader):
- try:
- while lineReader.hasLine():
- self._processLine(lineReader.readline())
- except Exception, e:
- debug(str(e))
-
- def handleClient(sock):
- conn, address = sock.accept()
- async_handler.addLineBufferedSocket(conn, Handler(self) )
-
- async_handler = AsyncSocket.AsyncSocketOwner()
-
- sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
- sock.bind(domainSocketName)
- sock.listen(2) # Backlog = 2
-
- async_handler.addSocket(sock, handleClient)
-
- return async_handler
if __name__ == "__main__":
main()
+