sugar-toolkit-gtk3/sugar-emulator

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#!/usr/bin/env python
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# Copyright (C) 2006, Red Hat, Inc.
#
# 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 of the License, or
# (at your option) any later 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 os
import sys
import socket
import logging
log = logging.getLogger( 'sugar-emulator' )
log.setLevel( logging.DEBUG )
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import pygtk
pygtk.require('2.0')
import gtk
import gobject
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from sugar import env
from sugar import ltihooks
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def _get_display_number():
"""Find a free display number trying to connect to 6000+ ports"""
log.info( "Attempting to find free port for X11 (Xephyr)" )
retries = 20
display_number = 1
display_is_free = False
while not display_is_free and retries > 0:
lockstr = "/tmp/.X%d-lock" % display_number
if not os.path.exists(lockstr):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.connect(('127.0.0.1', 6000 + display_number))
s.close()
except:
display_is_free = True
break
display_number += 1
retries -= 1
if display_is_free:
log.info(
' Found free port: #%s (%s)',
display_number, display_number+6000
)
return display_number
else:
logging.error('Cannot find a free display.')
sys.exit(0)
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def _start_xephyr():
display = _get_display_number()
log.info( 'Starting the Xephyr nested X display on display %s', display )
cmd = [ 'Xephyr' ]
cmd.append(':%d' % display)
cmd.append('-ac')
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if gtk.gdk.screen_width() < 1200 or gtk.gdk.screen_height() < 900:
cmd.append('-fullscreen')
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else:
cmd.append('-screen')
cmd.append('%dx%d' % (1200, 900))
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dpi = gtk.settings_get_default().get_property('gtk-xft-dpi')
if dpi > 0:
cmd.append('-dpi')
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cmd.append('%d' % int(dpi/1024))
log.debug( 'Xephyr command: %s', " ".join( cmd ) )
result = gobject.spawn_async(cmd, flags=gobject.SPAWN_SEARCH_PATH)
pid = result[0]
os.environ['DISPLAY'] = ":%d" % (display)
os.environ['SUGAR_EMULATOR_PID'] = str(pid)
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def _start_matchbox():
log.info( 'Starting the matchbox window manager' )
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cmd = ['matchbox-window-manager']
cmd.extend(['-use_titlebar', 'no'])
cmd.extend(['-theme', 'olpc'])
log.debug( 'Matchbox command: %s', " ".join( cmd) )
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gobject.spawn_async(cmd, flags=gobject.SPAWN_SEARCH_PATH)
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def _setup_env():
os.environ['SUGAR_EMULATOR'] = 'yes'
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source_dir = os.path.dirname(os.path.abspath(__file__))
if os.path.isfile(os.path.join(source_dir, 'autogen.sh')):
os.environ['SUGAR_PATH'] = source_dir
if os.environ.has_key('PYTHONPATH'):
path = os.environ['PYTHONPATH']
os.environ['PYTHONPATH'] = source_dir + ':' + path
log.info( 'Set PYTHONPATH=%s', os.environ['PYTHONPATH'] )
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os.environ['GABBLE_LOGFILE'] = os.path.join(env.get_profile_path(), 'logs', 'telepathy-gabble.log')
os.environ['SALUT_LOGFILE'] = os.path.join(env.get_profile_path(), 'logs', 'telepathy-salut.log')
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os.environ['STREAM_ENGINE_LOGFILE'] = os.path.join(env.get_profile_path(), 'logs', 'telepathy-stream-engine.log')
def main():
"""Script-level operations"""
logging.basicConfig()
_setup_env()
_start_xephyr()
from sugar import env
if env.is_emulator():
gtkrc_filename = 'sugar.gtkrc'
else:
gtkrc_filename = 'sugar-xo.gtkrc'
os.environ['GTK2_RC_FILES'] = env.get_data_path(gtkrc_filename)
if len(sys.argv) == 1:
program = 'sugar-shell'
else:
_start_matchbox()
program = sys.argv[1]
command = ['dbus-launch', 'dbus-launch', '--exit-with-session', program]
log.info( "Attempting to launch sugar to replace this process: %s", " ".join(command) )
os.execlp( *command )
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if __name__ == "__main__":
main()