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# -*- Mode: python; coding: utf-8; tab-width: 8; indent-tabs-mode: t; -*-
#
# Copyright (C) 2006 - Jonathan Matthew
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# The Rhythmbox authors hereby grants permission for non-GPL compatible
# GStreamer plugins to be used and distributed together with GStreamer
# and Rhythmbox. This permission is above and beyond the permissions granted
# by the GPL license by which Rhythmbox is covered. If you modify this code
# you may extend this exception to your version of the code, but you are not
# obligated to do so. If you do not wish to do so, delete this exception
# statement from your version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
import gobject
try:
import gnomevfs
use_gnomevfs = True
except:
import urllib
use_gnomevfs = False
class GnomeVFSAsyncSrc (object):
def __init__ (self):
self.chunk = 4096
def read_cb (self, handle, buffer, exc_type, bytes_requested, (data, callback, args)):
if exc_type:
if issubclass (exc_type, gnomevfs.EOFError):
gobject.idle_add (callback, data, *args)
handle.close (lambda *args: None)
else:
gobject.idle_add (callback, None, *args)
handle.close (lambda *args: None)
return
data += buffer
handle.read (self.chunk, self.read_cb, (data, callback, args))
def open_cb (self, handle, exc_type, (data, callback, args)):
if exc_type:
gobject.idle_add (callback, None, *args)
return
handle.read (self.chunk, self.read_cb, (data, callback, args))
def get_url (self, url, callback, *args):
gnomevfs.async.open (url, self.open_cb, data=("", callback, args))
class URLLibSrc (object):
def get_url (self, url, callback, *args):
try:
sock = urllib.urlopen (url)
data = sock.read ()
sock.close ()
callback (data, *args)
except:
callback (None, *args)
raise
def Loader ():
if use_gnomevfs:
return GnomeVFSAsyncSrc ()
else:
return URLLibSrc ()
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