qt open channel: minor dialog fixes

electrum/gui/qt/amountedit.py

@@ -13,7 +13,7 @@ from electrum.util import (format_satoshis_plain, decimal_point_to_base_unit_nam
                            FEERATE_PRECISION, quantize_feerate)
 
 
-class MyLineEdit(QLineEdit):
+class FreezableLineEdit(QLineEdit):
     frozen = pyqtSignal()
 
     def setFrozen(self, b):
@@ -21,7 +21,7 @@ class MyLineEdit(QLineEdit):
         self.setFrame(not b)
         self.frozen.emit()
 
-class AmountEdit(MyLineEdit):
+class AmountEdit(FreezableLineEdit):
     shortcut = pyqtSignal()
 
     def __init__(self, base_unit, is_int=False, parent=None):

electrum/gui/qt/channels_list.py

@@ -13,7 +13,7 @@ from electrum.wallet import Abstract_Wallet
 from electrum.lnutil import LOCAL, REMOTE, format_short_channel_id, LN_MAX_FUNDING_SAT
 
 from .util import MyTreeView, WindowModalDialog, Buttons, OkButton, CancelButton, EnterButton, WaitingDialog
-from .amountedit import BTCAmountEdit
+from .amountedit import BTCAmountEdit, FreezableLineEdit
 from .channel_details import ChannelDetailsDialog
 
 
@@ -163,22 +163,24 @@ class ChannelsList(MyTreeView):
         d = WindowModalDialog(self.parent, _('Open Channel'))
         vbox = QVBoxLayout(d)
         vbox.addWidget(QLabel(_('Enter Remote Node ID or connection string or invoice')))
-        local_nodeid = QLineEdit()
+        local_nodeid = FreezableLineEdit()
         local_nodeid.setMinimumWidth(700)
         local_nodeid.setText(bh2u(lnworker.node_keypair.pubkey))
-        local_nodeid.setReadOnly(True)
+        local_nodeid.setFrozen(True)
         local_nodeid.setCursorPosition(0)
         remote_nodeid = QLineEdit()
         remote_nodeid.setMinimumWidth(700)
         amount_e = BTCAmountEdit(self.parent.get_decimal_point)
         # max button
         def spend_max():
+            amount_e.setFrozen(max_button.isChecked())
+            if not max_button.isChecked():
+                return
             make_tx = self.parent.mktx_for_open_channel('!')
             tx = make_tx(None)
             amount = tx.output_value()
             amount = min(amount, LN_MAX_FUNDING_SAT)
             amount_e.setAmount(amount)
-            amount_e.setFrozen(True)
         max_button = EnterButton(_("Max"), spend_max)
         max_button.setFixedWidth(100)
         max_button.setCheckable(True)

electrum/gui/qt/main_window.py

@@ -77,7 +77,7 @@ from electrum.util import pr_expiration_values
 from electrum.lnutil import ln_dummy_address
 
 from .exception_window import Exception_Hook
-from .amountedit import AmountEdit, BTCAmountEdit, MyLineEdit, FeerateEdit
+from .amountedit import AmountEdit, BTCAmountEdit, FreezableLineEdit, FeerateEdit
 from .qrcodewidget import QRCodeWidget, QRDialog
 from .qrtextedit import ShowQRTextEdit, ScanQRTextEdit
 from .transaction_dialog import show_transaction
@@ -1212,7 +1212,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger):
               + _('The description is not sent to the recipient of the funds. It is stored in your wallet file, and displayed in the \'History\' tab.')
         description_label = HelpLabel(_('Description'), msg)
         grid.addWidget(description_label, 2, 0)
-        self.message_e = MyLineEdit()
+        self.message_e = FreezableLineEdit()
         self.message_e.setMinimumWidth(700)
         grid.addWidget(self.message_e, 2, 1, 1, -1)