Select a random image from a (list of) directory(s)
and set it as the desktop wallpaper (display it in the root window)
-using xli or xsetbg programs.
+using xli program.
"""
__revision__ = "$Id$"[5:-2]
__date__ = "$Date$"[7:-2]
-__author__ = "Oleg Broytman <phd@phd.pp.ru>"
+__author__ = "Oleg Broytman <phd@phdru.name>"
__copyright__ = "Copyright (C) 2000-2010 PhiloSoft Design"
__license__ = "GNU GPL"
+__all__ = ['host', 'port', 'change']
+
import sys, os
+from ConfigParser import SafeConfigParser
+
+import anydbm
+import random
+import shelve
import subprocess
+from time import time
+from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB
def error(error_str, error_code=1):
sys.exit(error_code)
-from ConfigParser import SafeConfigParser
-
xsetbg_dir = os.path.dirname(os.path.abspath(__file__))
os.chdir(xsetbg_dir)
old_filename_key = "old_filename"
-import random
-import anydbm, shelve
-from time import time
-from fcntl import flock, LOCK_EX, LOCK_UN, LOCK_NB
-
-# Import pickle and all anydbm/shelve internal machinery, so that
-# when ReadyExec forks they will be ready.
-# Also create the database if it is not exists yet.
+# Create the database if it is not exists yet.
try:
global_db = shelve.open(global_db_name, flag='c')
error("No images found. Abort.")
-def published(func):
- func._wsgi_published = True
- return func
-
-@published
-def ping(force=False):
+def change(force=False):
# Use the program's file as the lock file:
# lock it to prevent two processes run in parallel.
lock_file = open("xsetbg.py", 'r')
global_db[old_filename_key] = global_db[filename_key]
global_db[filename_key] = image_name
+ program_options = ["xli", "-onroot", "-quiet"] + \
+ ["-center", "-border", random.choice(borders), "-zoom", "auto",
+ image_name]
+
+ rc = subprocess.call(program_options)
+ if rc:
+ error("cannot execute xli!")
+
finally:
# Unlock and close the lock file
flock(lock_file, LOCK_UN)
lock_file.close()
# Flush and close the global persistent dictionary
if global_db: global_db.close()
-
- program_options = ["xli", "-onroot", "-quiet"] + \
- ["-center", "-border", random.choice(borders), "-zoom", "auto",
- image_name]
-
- rc = subprocess.call(program_options)
- if rc:
- error("cannot execute xli!")
-
-@published
-def force():
- ping(force=True)
-
-@published
-def stop():
- QuitWSGIServer._quit_flag = True
-
-
-from wsgiref.handlers import SimpleHandler
-from wsgiref import simple_server
-simple_server.ServerHandler = SimpleHandler # Stop logging to stdout
-from wsgiref.simple_server import WSGIServer, make_server
-
-g = globals().copy()
-commands = dict([(name, g[name]) for name in g
- if getattr(g[name], '_wsgi_published', False)])
-del g
-
-class QuitWSGIServer(WSGIServer):
- _quit_flag = False
-
- def serve_forever(self):
- while not self._quit_flag:
- self.handle_request()
-
-def app(env, start_response):
- command = env['PATH_INFO'][1:] # Remove the leading slash
- if command not in commands:
- status = '404 Not found'
- response_headers = [('Content-type', 'text/plain')]
- start_response(status, response_headers)
- return ['The command was not found.\n']
-
- try:
- commands[command]()
- except:
- status = '500 Error'
- response_headers = [('Content-type', 'text/plain')]
- start_response(status, response_headers)
- return ['Error occured!\n']
-
- status = '200 OK'
- response_headers = [('Content-type', 'text/plain')]
- start_response(status, response_headers)
- return ['Ok\n']
-
-httpd = make_server(host, port, app, server_class=QuitWSGIServer)
-httpd.serve_forever()