From 44efc2a1315efe90eb2edc7a24b1372382222408 Mon Sep 17 00:00:00 2001
From: Marco Pesenti Gritti <marco@localhost.localdomain>
Date: Tue, 05 Feb 2008 00:21:55 +0000
Subject: Complete paths cleanup and remove SUGAR_PREFIX and

SUGAR_PATH environment variables.
---
(limited to 'src/emulator.py')

diff --git a/src/emulator.py b/src/emulator.py
new file mode 100755
index 0000000..23ceea1
--- /dev/null
+++ b/src/emulator.py
@@ -0,0 +1,156 @@
+# 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
+from optparse import OptionParser
+
+log = logging.getLogger( 'sugar-emulator' )
+log.setLevel( logging.DEBUG )
+
+import pygtk
+pygtk.require('2.0')
+import gtk
+import gobject
+
+from sugar import env
+
+import config
+
+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)
+
+def _start_xephyr(dpi=None):
+    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') 
+
+    if gtk.gdk.screen_width() < 1200 or gtk.gdk.screen_height() < 900:
+        cmd.append('-fullscreen')
+    else:
+        cmd.append('-screen')
+        cmd.append('%dx%d' % (1200, 900))
+
+    if not dpi:
+        dpi = gtk.settings_get_default().get_property('gtk-xft-dpi') / 1024
+    if dpi > 0:
+        cmd.append('-dpi')
+        cmd.append('%d' % dpi)
+
+    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)
+
+def _start_matchbox():
+    log.info( 'Starting the matchbox window manager' )
+    cmd = ['matchbox-window-manager']
+
+    cmd.extend(['-use_titlebar', 'no'])
+    cmd.extend(['-theme', 'sugar'])
+
+    log.debug( 'Matchbox command: %s', " ".join( cmd) )
+    gobject.spawn_async(cmd, flags=gobject.SPAWN_SEARCH_PATH)
+
+def _setup_env():
+    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['STREAM_ENGINE_LOGFILE'] = os.path.join(
+            env.get_profile_path(), 'logs', 'telepathy-stream-engine.log')
+
+def main():
+    """Script-level operations"""
+
+    parser = OptionParser()
+    parser.add_option('-x', '--xo-style', dest='xo_style',
+                      action='store_true', help='use the XO style')
+    (options, args) = parser.parse_args()
+
+    logging.basicConfig()
+
+    _setup_env()
+
+    if options.xo_style:
+        _start_xephyr(dpi=201)
+    else:
+        _start_xephyr()
+
+    if options.xo_style:
+        os.environ['SUGAR_XO_STYLE'] = 'yes'
+    else:
+        os.environ['SUGAR_XO_STYLE'] = 'no'
+    
+    if options.xo_style:
+        gtkrc_filename = 'sugar-xo.gtkrc'
+    else:
+        gtkrc_filename = 'sugar.gtkrc'
+        os.environ['SUGAR_XO_STYLE'] = 'no'
+    
+    gtkrc_path = os.path.join(config.data_path, gtkrc_filename)
+    os.environ['GTK2_RC_FILES'] = gtkrc_path
+
+    command = ['dbus-launch', 'dbus-launch', '--exit-with-session']
+
+    if not args:
+        command.append('sugar-shell')
+    else:
+        _start_matchbox()
+
+        if args[0].endswith('.py'):
+            command.append('python')
+
+        command.append(args[0])
+    
+    log.info( "Attempting to launch sugar to replace this process: %s", " ".join(command))
+    os.execlp( *command )
--
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