From cf926e841263215b86f37bdc0d1beb788ba1b9a2 Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Mon, 15 Mar 2021 12:38:00 +0100
Subject: [PATCH] Qt: add option to request force close of channel
---
electrum/gui/qt/channels_list.py | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/electrum/gui/qt/channels_list.py b/electrum/gui/qt/channels_list.py
index a37eb190b..81038de29 100644
--- a/electrum/gui/qt/channels_list.py
+++ b/electrum/gui/qt/channels_list.py
@@ -6,7 +6,7 @@ from typing import Sequence, Optional, Dict
from PyQt5 import QtCore, QtGui
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import (QMenu, QHBoxLayout, QLabel, QVBoxLayout, QGridLayout, QLineEdit,
- QPushButton, QAbstractItemView, QComboBox)
+ QPushButton, QAbstractItemView, QComboBox, QCheckBox)
from PyQt5.QtGui import QFont, QStandardItem, QBrush
from electrum.util import bh2u, NotEnoughFunds, NoDynamicFeeEstimates
@@ -104,11 +104,23 @@ class ChannelsList(MyTreeView):
self.main_window.show_error('Failed to close channel:\n{}'.format(repr(e)))
def close_channel(self, channel_id):
+ self.is_force_close = False
msg = _('Close channel?')
- if not self.parent.question(msg):
+ force_cb = QCheckBox('Request force close from remote peer')
+ tooltip = _(
+ 'If you check this option, your node will pretend that it has lost its data and ask the remote node to broadcast their latest state. '
+ 'Doing so from time to time helps make sure that nodes are honest, because your node can punish them if they broadcast a revoked state.')
+ def on_checked(b):
+ self.is_force_close = bool(b)
+ force_cb.stateChanged.connect(on_checked)
+ force_cb.setToolTip(tooltip)
+ if not self.parent.question(msg, checkbox=force_cb):
return
def task():
- coro = self.lnworker.close_channel(channel_id)
+ if self.is_force_close:
+ coro = self.lnworker.request_remote_force_close(channel_id)
+ else:
+ coro = self.lnworker.close_channel(channel_id)
return self.network.run_from_another_thread(coro)
WaitingDialog(self, 'please wait..', task, self.on_success, self.on_failure)