From f14bcb9b6c79f7f071e32a7ef9bba5ce440096bd Mon Sep 17 00:00:00 2001
From: Vincent Vinet <vince.vinet@gmail.com>
Date: Thu, 15 Oct 2009 14:23:57 +0000
Subject: Big commit! Everything to make Tutorial execution work through dbus.

---
(limited to 'tutorius/service.py')

diff --git a/tutorius/service.py b/tutorius/service.py
new file mode 100644
index 0000000..c52b7cd
--- /dev/null
+++ b/tutorius/service.py
@@ -0,0 +1,78 @@
+from engine import Engine
+import dbus
+
+from dbustools import remote_call
+
+_DBUS_SERVICE = "org.tutorius.Service"
+_DBUS_PATH = "/org/tutorius/Service"
+_DBUS_SERVICE_IFACE = "org.tutorius.Service"
+
+class Service(dbus.service.Object):
+    """
+    Global tutorius entry point to control the whole system
+    """
+
+    def __init__(self):
+        bus = dbus.SessionBus()
+        bus_name = dbus.service.BusName(_DBUS_SERVICE, bus=bus)
+        dbus.service.Object.__init__(self, bus_name, _DBUS_PATH)
+
+        self._engine = None
+
+    def start(self):
+        """ Start the service itself
+        """
+        # For the moment there is nothing to do
+        pass
+
+
+    @dbus.service.method(_DBUS_SERVICE_IFACE,
+                          in_signature="s", out_signature="") 
+    def launch(self, tutorialID):
+	""" Launch a tutorial 
+            @param tutorialID unique tutorial identifier used to retrieve it from the disk
+        """
+        if self._engine == None:
+            self._engine = Engine()
+        self._engine.launch(tutorialID)
+
+    @dbus.service.method(_DBUS_SERVICE_IFACE,
+                          in_signature="", out_signature="") 
+    def stop(self):
+        """ Stop the current tutorial
+        """
+        self._engine.stop()
+
+    @dbus.service.method(_DBUS_SERVICE_IFACE,
+                          in_signature="", out_signature="") 
+    def pause(self):
+        """ Interrupt the current tutorial and save its state in the journal
+        """
+        self._engine.pause()
+
+class ServiceProxy:
+    """ Proxy to connect to the Service object, abstracting the DBus interface"""
+
+    def __init__(self):
+        bus = dbus.SessionBus()
+        self._object = bus.get_object(_DBUS_SERVICE,_DBUS_PATH)
+        self._service = dbus.Interface(self._object, _DBUS_SERVICE_IFACE)
+
+    def launch(self, tutorialID):
+        remote_call(self._service.launch, (tutorialID, ), block=False)
+
+    def stop(self):
+        remote_call(self._service.stop, (), block=False)
+
+    def pause(self):
+        remote_call(self._service.pause, (), block=False)
+
+if __name__ == "__main__":
+    import dbus.mainloop.glib
+    import gobject
+
+    loop = gobject.MainLoop()
+    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+    s = Service()
+    loop.run()
+
--
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