Implement device button click to conncet to device

companion/app.py

@@ -16,14 +16,16 @@ class DeviceListWidget(Widget):
         self._devices_buttons_map = {}
 
     @mainthread
-    def update_device_buttons(self, devices):
+    def update_device_buttons(self, buttons_map):
         Logger.debug("Updating device buttons")
-        self._devices_buttons_map = devices
 
         self.device_buttons.clear_widgets()
-        for label, device in self._devices_buttons_map.items():
-            Logger.debug("Adding button for %s" % label)
-            btn = Button(text=label)
+        for address, info in buttons_map.items():
+            label, cb_connect = info
+
+            Logger.debug("Adding button for %s (%s)" % (address, label))
+
+            btn = Button(text=label, on_press=cb_connect)
             self.device_buttons.add_widget(btn)
 
 
@@ -34,7 +36,20 @@ class MynitCompanionApp(App):
         self._bluetooth = MynitBluetooth(self)
 
     def update_device_list(self, devices):
-        self.widget.update_device_buttons({device.getAddress(): device for device in devices})
+        Logger.debug("Updating device buttons")
+
+        buttons_map = {}
+        for device in devices:
+            if not device.getName():
+                Logger.info("Device %s skipped due to missing name" % device.getAddress())
+                continue
+
+            def cb_connect(*args, **kwargs):
+                self._bluetooth.connect_by_device_address(device.getAddress())
+
+            buttons_map[device.getAddress()] = (device.getName(), cb_connect)
+
+        self.widget.update_device_buttons(buttons_map)
 
     def build(self):
         self.widget = DeviceListWidget()

companion/bluetooth.py

@@ -32,6 +32,11 @@ class MynitBluetooth(BluetoothDispatcher):
 
             self._app.update_device_list(self._available_devices)
 
+    def connect_by_device_address(self, address):
+        Logger.info("Connecting to %s" % address)
+        self.stop_scan()
+        return super().connect_by_device_address(address)
+
     def on_connection_state_change(self, status, state):
         Logger.debug("Connection state changed")
 
@@ -44,6 +49,7 @@ class MynitBluetooth(BluetoothDispatcher):
             self.close_gatt()
             self._current_device = None
             self._characteristics = None, None
+            self.start_scan()
 
     def on_services(self, status, services):
         self._characteristics = (services.search(_UART_SERVICE_TX_UUID), services.search(_UART_SERVICE_RX_UUID))