[gnome-music/wip/merge: 318/343] Create new file mpris.py

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 89f70e9bfe77e2ae9734a1d5d3b690d1cb7862b5
Author: Arnel A. Borja <arnelborja src gnome org>
Date:   Sun Jul 21 22:42:41 2013 +0800

    Create new file mpris.py
    
    The file will contain the service for all interfaces of MPRIS implemented
    by gnome-music.

 gnomemusic/Makefile.am |    1 +
 gnomemusic/mpris.py    |   35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 0 deletions(-)
---
diff --git a/gnomemusic/Makefile.am b/gnomemusic/Makefile.am
index cedab49..f5e7062 100644
--- a/gnomemusic/Makefile.am
+++ b/gnomemusic/Makefile.am
@@ -5,6 +5,7 @@ app_PYTHON = \
        application.py \
        __init__.py \
        player.py \
+       mpris.py \
        toolbar.py \
        view.py \
        grilo.py \
diff --git a/gnomemusic/mpris.py b/gnomemusic/mpris.py
new file mode 100644
index 0000000..4fdf9da
--- /dev/null
+++ b/gnomemusic/mpris.py
@@ -0,0 +1,35 @@
+import dbus
+import dbus.service
+from dbus.mainloop.glib import DBusGMainLoop
+
+
+class MediaPlayer2Service(dbus.service.Object):
+    def __init__(self, app):
+        DBusGMainLoop(set_as_default=True)
+        name = dbus.service.BusName('org.mpris.MediaPlayer2.GnomeMusic', dbus.SessionBus())
+        dbus.service.Object.__init__(self, name, '/org/mpris/MediaPlayer2')
+        self.app = app
+
+    @dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
+                         in_signature='ss', out_signature='v')
+    def Get(self, interface_name, property_name):
+        return self.GetAll(interface_name)[property_name]
+
+    @dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
+                         in_signature='s', out_signature='a{sv}')
+    def GetAll(self, interface_name):
+        raise dbus.exceptions.DBusException(
+            'org.mpris.MediaPlayer2.GnomeMusic',
+            'This object does not implement the %s interface'
+            % interface_name)
+
+    @dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE,
+                         in_signature='ssv')
+    def Set(self, interface_name, property_name, new_value):
+        pass
+
+    @dbus.service.signal(dbus_interface=dbus.PROPERTIES_IFACE,
+                         signature='sa{sv}as')
+    def PropertiesChanged(self, interface_name, changed_properties,
+                          invalidated_properties):
+        pass