hw wallets: fix "show address" functionality in qt receive tab

electrum/plugins/hw_wallet/qt.py

@@ -36,6 +36,7 @@ from electrum.gui.qt.util import (read_QIcon, WWLabel, OkButton, WindowModalDial
 
 from electrum.i18n import _
 from electrum.logging import Logger
+from electrum.util import parse_URI, InvalidBitcoinURI
 
 from .plugin import OutdatedHwFirmwareException
 
@@ -255,6 +256,13 @@ class QtPluginBase(object):
         receive_address_e = main_window.receive_address_e
 
         def show_address():
-            addr = receive_address_e.text()
+            addr = str(receive_address_e.text())
+            # note: 'addr' could be ln invoice or BIP21 URI
+            try:
+                uri = parse_URI(addr)
+            except InvalidBitcoinURI:
+                pass
+            else:
+                addr = uri.get('address')
             keystore.thread.add(partial(plugin.show_address, wallet, addr, keystore))
         receive_address_e.addButton("eye1.png", show_address, _("Show on {}").format(plugin.device))