add alias field to settings

gui/qt/main_window.py

@@ -711,15 +711,16 @@ class ElectrumWindow(QMainWindow):
         message = unicode(self.receive_message_e.text())
         if not message and not amount:
             QMessageBox.warning(self, _('Error'), _('No message or amount'), _('OK'))
-            return
+            return False
         i = self.expires_combo.currentIndex()
         expiration = map(lambda x: x[1], expiration_values)[i]
         self.wallet.add_payment_request(addr, amount, message, expiration, self.config)
         self.update_receive_tab()
         self.update_address_tab()
         self.save_request_button.setEnabled(False)
+        return True
 
-    def export_payment_request(self, addr):
+    def make_payment_request(self, addr):
         alias = str(self.config.get('alias'))
         alias_privkey = None
         if alias:
@@ -729,9 +730,12 @@ class ElectrumWindow(QMainWindow):
                 if alias_addr and self.wallet.is_mine(alias_addr):
                     password = self.password_dialog()
                     alias_privkey = self.wallet.get_private_key(alias_addr, password)[0]
-
         r = self.wallet.get_payment_request(addr, self.config)
         pr = paymentrequest.make_request(self.config, r, alias, alias_privkey)
+        return pr
+
+    def export_payment_request(self, addr):
+        pr = self.make_payment_request(addr)
         name = r['id'] + '.bip70'
         fileName = self.getSaveFileName(_("Select where to save your payment request"), name, "*.bip70")
         if fileName:
@@ -2502,9 +2506,17 @@ class ElectrumWindow(QMainWindow):
                 self.update_fee()
         fee_e.editingFinished.connect(lambda: on_fee(True))
         fee_e.textEdited.connect(lambda: on_fee(False))
-
         widgets.append((fee_label, fee_e, fee_help))
 
+        alias_label = QLabel(_('Alias') + ':')
+        alias_help = HelpButton(_('OpenAlias TXT record, used to receive coins and to sign payment requests'))
+        alias_e = QLineEdit(self.config.get('alias',''))
+        def on_alias():
+            alias = str(alias_e.text())
+            self.config.set_key('alias', alias, True)
+        alias_e.editingFinished.connect(on_alias)
+        widgets.append((alias_label, alias_e, alias_help))
+
         units = ['BTC', 'mBTC', 'bits']
         unit_label = QLabel(_('Base unit') + ':')
         unit_combo = QComboBox()