Infrastructure for the home page devices

shell/model/Makefile.am

@@ -1,3 +1,5 @@
+SUBDIRS = devices
+
 sugardir = $(pkgdatadir)/shell/model
 sugar_PYTHON =			\
 	__init__.py		\

shell/model/ShellModel.py

@@ -24,6 +24,7 @@ from model.Friends import Friends
 from model.MeshModel import MeshModel
 from model.homemodel import HomeModel
 from model.Owner import ShellOwner
+from model.devices.devicesmodel import DevicesModel
 from sugar import env
 
 class ShellModel(gobject.GObject):
@@ -54,6 +55,7 @@ class ShellModel(gobject.GObject):
         self._friends = Friends()
         self._mesh = MeshModel(self._bundle_registry)
         self._home = HomeModel(self._bundle_registry)
+        self._devices = DevicesModel()
 
         for path in env.get_data_dirs():
             bundles_path = os.path.join(path, 'activities')
@@ -86,3 +88,6 @@ class ShellModel(gobject.GObject):
 
     def get_owner(self):
         return self._owner
+
+    def get_devices(self):
+        return self._devices

shell/model/devices/Makefile.am

@@ -0,0 +1,7 @@
+sugardir = $(pkgdatadir)/shell/model/devices
+sugar_PYTHON =			\
+	__init__.py		\
+	device.py		\
+	devicesmodel.py		\
+	battery.py		\
+	network.py

shell/model/devices/battery.py

@@ -0,0 +1,11 @@
+from model.devices import device
+
+class Device(device.Device):
+    def __init__(self):
+        device.Device.__init__(self)
+
+    def get_type(self):
+        return 'network'
+
+    def get_level(self):
+        return 0

shell/model/devices/device.py

@@ -0,0 +1,11 @@
+from sugar import util
+
+class Device(object):
+    def __init__(self):
+        self._id = util.unique_id()
+
+    def get_type(self):
+        return 'unknown'        
+
+    def get_id(self):
+        return self._id

shell/model/devices/devicesmodel.py

@@ -0,0 +1,29 @@
+import gobject
+
+from model.devices import device
+from model.devices import network
+from model.devices import battery
+
+class DevicesModel(gobject.GObject):
+    __gsignals__ = {
+        'device-appeared'   : (gobject.SIGNAL_RUN_FIRST,
+                               gobject.TYPE_NONE, 
+                              ([gobject.TYPE_PYOBJECT])),
+        'device-disappeared': (gobject.SIGNAL_RUN_FIRST,
+                               gobject.TYPE_NONE, 
+                              ([gobject.TYPE_PYOBJECT]))
+    }
+   
+    def __init__(self):
+        gobject.GObject.__init__(self)
+
+        self._devices = []
+
+        self.add_device(network.Device())
+        self.add_device(battery.Device())
+
+    def __iter__(self):
+        return iter(self._devices)
+
+    def add_device(self, device):
+        self._devices.append(device)

shell/model/devices/network.py

@@ -0,0 +1,11 @@
+from model.devices import device
+
+class Device(device.Device):
+    def __init__(self):
+        device.Device.__init__(self)
+
+    def get_type(self):
+        return 'network'
+
+    def get_level(self):
+        return 0