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# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtWidgets
from electrum.util import inv_dict, bh2u
from electrum.i18n import _
from electrum.lnbase import OpenChannel
from .util import MyTreeWidget, SortableTreeWidgetItem
class ChannelsList(MyTreeWidget):
update_rows = QtCore.pyqtSignal()
update_single_row = QtCore.pyqtSignal(OpenChannel)
def __init__(self, parent):
MyTreeWidget.__init__(self, parent, self.create_menu, [_('Node ID'), _('Balance'), _('Remote'), _('Status')], 0)
self.main_window = parent
self.update_rows.connect(self.do_update_rows)
self.update_single_row.connect(self.do_update_single_row)
def format_fields(self, chan):
status = self.parent.wallet.lnworker.channel_state[chan.channel_id]
return [
bh2u(chan.node_id),
self.parent.format_amount(chan.local_state.amount_msat//1000),
self.parent.format_amount(chan.remote_state.amount_msat//1000),
status
]
def create_menu(self, position):
menu = QtWidgets.QMenu()
channel_id = self.currentItem().data(0, QtCore.Qt.UserRole)
print('ID', bh2u(channel_id))
def close():
self.parent.wallet.lnworker.close_channel(channel_id)
menu.addAction(_("Close channel"), close)
menu.exec_(self.viewport().mapToGlobal(position))
@QtCore.pyqtSlot(OpenChannel)
def do_update_single_row(self, chan):
for i in range(self.topLevelItemCount()):
item = self.topLevelItem(i)
if item.data(0, QtCore.Qt.UserRole) == chan.channel_id:
for i, v in enumerate(self.format_fields(chan)):
item.setData(i, QtCore.Qt.DisplayRole, v)
@QtCore.pyqtSlot()
def do_update_rows(self):
self.clear()
for chan in self.parent.wallet.lnworker.channels.values():
item = SortableTreeWidgetItem(self.format_fields(chan))
item.setData(0, QtCore.Qt.UserRole, chan.channel_id)
self.insertTopLevelItem(0, item)
def get_toolbar(self):
nodeid_inp = QtWidgets.QLineEdit(self)
local_amt_inp = QtWidgets.QLineEdit(self, text='200000')
push_amt_inp = QtWidgets.QLineEdit(self, text='0')
button = QtWidgets.QPushButton(_('Open channel'), self)
button.clicked.connect(lambda: self.main_window.protect(self.open_channel, (nodeid_inp, local_amt_inp, push_amt_inp)))
h = QtWidgets.QGridLayout()
nodeid_label = QtWidgets.QLabel(self)
nodeid_label.setText(_("Node ID"))
local_amt_label = QtWidgets.QLabel(self)
local_amt_label.setText("Local amount (sat)")
push_amt_label = QtWidgets.QLabel(self)
push_amt_label.setText("Push amount (sat)")
h.addWidget(nodeid_label, 0, 0)
h.addWidget(local_amt_label, 0, 1)
h.addWidget(push_amt_label, 0, 2)
h.addWidget(nodeid_inp, 1, 0)
h.addWidget(local_amt_inp, 1, 1)
h.addWidget(push_amt_inp, 1, 2)
h.addWidget(button, 1, 3)
h.setColumnStretch(0, 3)
h.setColumnStretch(1, 1)
h.setColumnStretch(2, 1)
h.setColumnStretch(3, 1)
return h
def open_channel(self, nodeIdInput, local_amt_inp, push_amt_inp, password):
node_id = str(nodeIdInput.text())
local_amt = int(local_amt_inp.text())
push_amt = int(push_amt_inp.text())
assert local_amt >= 200000
assert local_amt >= push_amt
obj = self.parent.wallet.lnworker.open_channel(node_id, local_amt, push_amt, password)