Handle device removal

shell/hardware/nmclient.py

@@ -130,6 +130,8 @@ class Device(gobject.GObject):
                                 gobject.TYPE_NONE, ([])),
         'activated':           (gobject.SIGNAL_RUN_FIRST,
                                 gobject.TYPE_NONE, ([])),
+        'deactivated':         (gobject.SIGNAL_RUN_FIRST,
+                                gobject.TYPE_NONE, ([])),
         'strength-changed':    (gobject.SIGNAL_RUN_FIRST,
                                 gobject.TYPE_NONE,
                                ([gobject.TYPE_PYOBJECT])),
@@ -179,6 +181,8 @@ class Device(gobject.GObject):
 
         if self._active:
             self.emit('activated')
+        else:
+            self.emit('deactivated')
 
     def _update_networks(self, net_ops, active_op):
         for op in net_ops:

shell/model/devices/devicesmodel.py

@@ -20,7 +20,7 @@ class DevicesModel(gobject.GObject):
     def __init__(self):
         gobject.GObject.__init__(self)
 
-        self._devices = []
+        self._devices = {}
         self.add_device(battery.Device())
 
         self._observe_network_manager()
@@ -32,21 +32,44 @@ class DevicesModel(gobject.GObject):
             self._check_network_device(device)
 
         network_manager.connect('device-activated',
-                                self._network_device_added_cb)
+                                self._network_device_activated_cb)
+        network_manager.connect('device-removed',
+                                self._network_device_removed_cb)
 
-    def _network_device_added_cb(self, network_manager, device):
-        self._check_network_device(device)
+    def _network_device_activated_cb(self, network_manager, nm_device):
+        self._check_network_device(nm_device)
 
-    def _check_network_device(self, device):
-        if not device.is_valid():
+    def _network_device_removed_cb(self, nm_device):
+        self._remove_network_device(nm_device)
+
+    def _network_device_deactivated_cb(self, nm_device):
+        self._remove_network_device(nm_device)
+
+    def _check_network_device(self, nm_device):
+        if not nm_device.is_valid():
             return
 
-        if device.get_type() == nmclient.DEVICE_TYPE_802_11_WIRELESS:
-            self.add_device(wirelessnetwork.Device(device))
+        if nm_device.get_type() == nmclient.DEVICE_TYPE_802_11_WIRELESS:
+            self._add_network_device(nm_device)
+
+    def _get_network_device(self, nm_device):
+        return self._devices[nm_device.get_op()]
+
+    def _add_network_device(self, nm_device):
+        self.add_device(wirelessnetwork.Device(nm_device))
+        nm_device.connect('deactivated',
+                            self._network_device_deactivated_cb)
+
+    def _remove_network_device(self, nm_device):
+        self.remove_device(self._get_network_device(nm_device))
 
     def __iter__(self):
-        return iter(self._devices)
+        return iter(self._devices.values())
 
     def add_device(self, device):
-        self._devices.append(device)
+        self._devices[device.get_id()] = device
         self.emit('device-appeared', device)
+
+    def remove_device(self, device):
+        self.emit('device-disappeared', self._devices[device.get_id()])
+        del self._devices[device.get_id()]

shell/model/devices/wirednetwork.py

@@ -5,5 +5,8 @@ class Device(device.Device):
         device.Device.__init__(self)
         self._nm_device = device
 
+    def get_id(self):
+        return self._nm_device.get_op()
+
     def get_type(self):
         return 'wirednetwork'

shell/model/devices/wirelessnetwork.py

@@ -3,10 +3,13 @@ from model.devices import device
 class Device(device.Device):
     def __init__(self, nm_device):
         device.Device.__init__(self)
-        self._nm_device = device
+        self._nm_device = nm_device
 
     def get_type(self):
         return 'wirelessnetwork'
 
+    def get_id(self):
+        return self._nm_device.get_op()
+
     def get_level(self):
         return self._nm_device.get_strength()

shell/view/home/HomeBox.py

@@ -45,7 +45,7 @@ class HomeBox(hippo.CanvasBox, hippo.CanvasItem):
         shell_model.connect('notify::state',
                             self._shell_state_changed_cb)
 
-        self._device_icons = []
+        self._device_icons = {}
 
         devices_model = shell_model.get_devices()
         for device in devices_model:
@@ -59,13 +59,17 @@ class HomeBox(hippo.CanvasBox, hippo.CanvasItem):
     def _add_device(self, device):
         view = deviceview.create(device)
         self.append(view, hippo.PACK_FIXED)
-        self._device_icons.append(view)
+        self._device_icons[device.get_id()] = view
+
+    def _remove_device(self, device):
+        self.remove(self._device_icons[device.get_id()])
+        del self._device_icons[device.get_id()]
 
     def _device_appeared_cb(self, model, device):
         self._add_device(device)
 
     def _device_disappeared_cb(self, model, device):
-        pass
+        self._remove_device(device)
 
     def _shell_state_changed_cb(self, model, pspec):
         # FIXME handle all possible mode switches
@@ -87,7 +91,7 @@ class HomeBox(hippo.CanvasBox, hippo.CanvasItem):
                           (height - icon_height) / 2)
 
         i = 0
-        for icon in self._device_icons:
+        for icon in self._device_icons.values():
             angle = 2 * math.pi / len(self._device_icons) * i + math.pi / 2
             radius = units.grid_to_pixels(5)