Fix popping the page stack when things are deleted

libnymea-app/devices.cpp

@@ -117,6 +117,7 @@ void Devices::addDevice(Device *device)
         emit dataChanged(index(idx), index(idx));
     });
     emit countChanged();
+    emit thingAdded(device);
 }
 
 void Devices::removeDevice(Device *device)
@@ -124,9 +125,10 @@ void Devices::removeDevice(Device *device)
     int index = m_devices.indexOf(device);
     beginRemoveRows(QModelIndex(), index, index);
     qDebug() << "Devices: removed device" << device->name();
-    m_devices.removeAt(index);
+    m_devices.takeAt(index)->deleteLater();
     endRemoveRows();
     emit countChanged();
+    emit thingRemoved(device);
 }
 
 void Devices::clearModel()

libnymea-app/devices.h

@@ -73,6 +73,8 @@ protected:
 
 signals:
     void countChanged();
+    void thingAdded(Device *device);
+    void thingRemoved(Device *device);
 
 private:
     QList<Device *> m_devices;

nymea-app/ui/devicepages/DevicePageBase.qml

@@ -144,6 +144,16 @@ Page {
             }
         }
 
+        Connections {
+            target: engine.deviceManager.devices
+            onThingRemoved:{
+                if (device == root.device) {
+                    print("Device destroyed")
+                    pageStack.pop()
+                }
+            }
+        }
+
         Component {
             id: addToGroupDialog
             MeaDialog {