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# Copyright (C) 2006-2008, 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 signal
import subprocess
import sys
import time
from optparse import OptionParser
from gettext import gettext as _
import gtk
import gobject
from sugar import env
ERROR_NO_DISPLAY = 30
ERROR_NO_SERVER = 31
default_dimensions = (800, 600)
def _run_xephyr(display, dpi, dimensions, fullscreen):
cmd = ['Xephyr']
cmd.append(':%d' % display)
cmd.append('-ac')
cmd += ['-title', _('Sugar in a window')]
screen_size = (gtk.gdk.screen_width(), gtk.gdk.screen_height())
if (not dimensions) and (fullscreen is None) and \
(screen_size <= default_dimensions):
# no forced settings, screen too small => fit screen
fullscreen = True
elif not dimensions:
# screen is big enough or user has en/disabled fullscreen manually
# => use default size (will get ignored for fullscreen)
dimensions = '%dx%d' % default_dimensions
if not dpi:
dpi = gtk.settings_get_default().get_property('gtk-xft-dpi') / 1024
if fullscreen:
cmd.append('-fullscreen')
if dimensions:
cmd.append('-screen')
cmd.append(dimensions)
if dpi:
cmd.append('-dpi')
cmd.append('%d' % dpi)
cmd.append('-noreset')
try:
pipe = subprocess.Popen(cmd)
except OSError, exc:
sys.stderr.write('Error executing server: %s\n' % (exc, ))
return None
return pipe
def _check_server(display):
result = subprocess.call(['xdpyinfo', '-display', ':%d' % display],
stdout=open(os.devnull, 'w'),
stderr=open(os.devnull, 'w'))
return result == 0
def _kill_pipe(pipe):
"""Terminate and wait for child process."""
try:
os.kill(pipe.pid, signal.SIGTERM)
except OSError:
pass
pipe.wait()
def _start_xephyr(dpi, dimensions, fullscreen):
for display in range(30, 40):
if not _check_server(display):
pipe = _run_xephyr(display, dpi, dimensions, fullscreen)
if pipe is None:
return None, None
for i_ in range(10):
if _check_server(display):
return pipe, display
time.sleep(0.1)
_kill_pipe(pipe)
return None, None
def _start_window_manager():
cmd = ['metacity']
cmd.extend(['--no-force-fullscreen'])
gobject.spawn_async(cmd, flags=gobject.SPAWN_SEARCH_PATH)
def _setup_env(display, scaling, emulator_pid):
os.environ['SUGAR_EMULATOR'] = 'yes'
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')
os.environ['MC_LOGFILE'] = os.path.join(
env.get_profile_path(), 'logs', 'mission-control.log')
os.environ['STREAM_ENGINE_LOGFILE'] = os.path.join(
env.get_profile_path(), 'logs', 'telepathy-stream-engine.log')
os.environ['DISPLAY'] = ':%d' % (display)
os.environ['SUGAR_EMULATOR_PID'] = emulator_pid
os.environ['MC_ACCOUNT_DIR'] = os.path.join(
env.get_profile_path(), 'accounts')
if scaling:
os.environ['SUGAR_SCALING'] = scaling
def main():
"""Script-level operations"""
parser = OptionParser()
parser.add_option('-d', '--dpi', dest='dpi', type='int',
help='Emulator dpi')
parser.add_option('-s', '--scaling', dest='scaling',
help='Sugar scaling in %')
parser.add_option('-i', '--dimensions', dest='dimensions',
help='Emulator dimensions (ex. 1200x900)')
parser.add_option('-f', '--fullscreen', dest='fullscreen',
action='store_true', default=None,
help='Run emulator in fullscreen mode')
parser.add_option('-F', '--no-fullscreen', dest='fullscreen',
action='store_false',
help='Do not run emulator in fullscreen mode')
(options, args) = parser.parse_args()
if not os.environ.get('DISPLAY'):
sys.stderr.write('DISPLAY not set, cannot connect to host X server.\n')
return ERROR_NO_DISPLAY
server, display = _start_xephyr(options.dpi, options.dimensions,
options.fullscreen)
if server is None:
sys.stderr.write('Failed to start server. Please check output above'
' for any error message.\n')
return ERROR_NO_SERVER
_setup_env(display, options.scaling, str(server.pid))
command = ['dbus-launch', '--exit-with-session']
if not args:
command.append('sugar')
else:
_start_window_manager()
if args[0].endswith('.py'):
command.append('python')
command.append(args[0])
subprocess.call(command)
_kill_pipe(server)
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