Add a legacy app runner application based on Xephyr

legacy/legacy.py

@@ -0,0 +1,161 @@
+#!/usr/bin/python -t
+# -*- tab-width: 4; indent-tabs-mode: t -*- 
+
+import dbus
+import dbus.service
+import dbus.glib
+
+import pygtk
+pygtk.require('2.0')
+import gtk, gobject
+
+import sys
+import os
+import pwd
+import gc
+import socket
+import types
+import select
+
+sys.path.append(os.getcwd())
+sys.path.append('../shell/example-activity/')
+import activity
+
+XEPHYR_PATH = "/usr/bin/Xephyr"
+
+	
+def getfd(filespec, readOnly = 0):
+	if type(filespec) == types.IntType:
+		return (filespec, False)
+	if filespec == None:
+		filespec = "/dev/null"
+
+	flags = os.O_RDWR | os.O_CREAT
+	if (readOnly):
+		flags = os.O_RDONLY
+	fd = os.open(filespec, flags, 0644)
+	return (fd, True)
+
+def exec_with_redirect(cmd, argv, display, stdin=0, stdout=1, stderr=2, setpgrp=True):
+	cmd = os.path.abspath(cmd)
+	if not os.access (cmd, os.X_OK):
+		raise RuntimeError(cmd + " can not be run")
+
+	stdout_opened = False
+	stderr_opened = False
+	(stdin, stdin_opened) = getfd(stdin)
+	if stdout == stderr:
+		(stdout, stdout_opened) = getfd(stdout)
+		stderr = stdout
+	else:
+		(stdout, stdout_opened) = getfd(stdout)
+		(stderr, stderr_opened) = getfd(stderr)
+
+	childpid = os.fork()
+	if (not childpid):
+		# Become leader of a new process group if requested
+		if setpgrp:
+			os.setpgrp()
+
+		if stdin != 0:
+			os.dup2(stdin, 0)
+			os.close(stdin)
+		if stdout != 1:
+			os.dup2(stdout, 1)
+			if stdout != stderr:
+				os.close(stdout)
+		if stderr != 2:
+			os.dup2(stderr, 2)
+			os.close(stderr)
+
+		try:
+			if display:
+				os.environ['DISPLAY'] = "0:%d" % display
+			os.execv(cmd, argv)
+		except OSError, e:
+			print "Could not execute command '%s'.  Reason: %s" % (cmd, e)
+		sys.exit(1)
+
+	# Close any files we may have opened
+	if stdin_opened:
+		os.close(stdin)
+	if stdout_opened:
+		os.close(stdout)
+	if stderr != stdout and stderr_opened:
+		os.close(stderr)
+
+	return childpid
+
+class LegacyActivity(activity.Activity):
+
+	def __init__(self, args):
+		activity.Activity.__init__(self)
+		self._act_name = os.path.basename(args[1])
+		self._display = 5
+		self._args = args[1:]
+
+	def _xephyr_function(self, pid, condition, data=None):
+		print "Xephyr: PID: %d, condition: %s" % (pid, condition)
+
+	def _act_function(self, pid, condition, data=None):
+		print "ACT: PID: %d, condition: %s" % (pid, condition)
+
+	def _start(self):
+		cmd = XEPHYR_PATH
+		args = []
+		args.append(XEPHYR_PATH)
+		args.append(":%d" % self._display)
+		args.append("-ac")
+		args.append("-parent")
+		args.append("%d" % self._plug.get_id())
+		args.append("-host-cursor")
+		self._xephyr_pid = exec_with_redirect(cmd, args, None, None)
+		self._xephyr_watch = gobject.child_watch_add(self._xephyr_pid, self._xephyr_function)
+
+		cmd = os.path.abspath(self._args[0])
+		args = [cmd]
+		for arg in self._args[1:]:
+			args.append(arg)		
+		self._act_pid = exec_with_redirect(cmd, args, self._display, None)
+		self._act_watch = gobject.child_watch_add(self._act_pid, self._act_function)
+
+	def activity_on_connected_to_shell(self):
+		print "act %d: in activity_on_connected_to_shell" % self.activity_get_id()
+		self.activity_set_tab_text(self._act_name)
+		self._plug = self.activity_get_gtk_plug()
+		self._plug.show()
+		self._start()
+
+	def activity_on_disconnected_from_shell(self):
+		print "act %d: in activity_on_disconnected_from_shell"%self.activity_get_id()
+		print "act %d: Shell disappeared..."%self.activity_get_id()
+		gc.collect()
+
+	def activity_on_close_from_user(self):
+		print "act %d: in activity_on_close_from_user"%self.activity_get_id()
+		self.activity_shutdown()
+
+	def activity_on_lost_focus(self):
+		print "act %d: in activity_on_lost_focus"%self.activity_get_id()
+
+	def activity_on_got_focus(self):
+		print "act %d: in activity_on_got_focus"%self.activity_get_id()
+
+	def cleanup(self):
+		os.kill(self._xephyr_pid, 9)
+		os.kill(self._act_pid, 9)
+
+	def run(self):
+		try:
+			gtk.main()
+		except KeyboardInterrupt:
+			pass
+
+def main(args):
+	app = LegacyActivity(args)
+	app.activity_connect_to_shell()
+	app.run()
+	app.cleanup()
+
+if __name__ == "__main__":
+	main(sys.argv)