ThomasV
3 years ago
2 changed files with 130 additions and 101 deletions
@ -0,0 +1,126 @@ |
|||||
|
from typing import TYPE_CHECKING, Optional |
||||
|
|
||||
|
from PyQt5.QtWidgets import QLabel, QVBoxLayout, QGridLayout, QPushButton, QComboBox, QLineEdit |
||||
|
|
||||
|
from electrum.i18n import _ |
||||
|
from electrum.transaction import PartialTxOutput, PartialTransaction |
||||
|
from electrum.lnutil import LN_MAX_FUNDING_SAT |
||||
|
from electrum.lnworker import hardcoded_trampoline_nodes |
||||
|
from electrum import ecc |
||||
|
|
||||
|
|
||||
|
from .util import (WindowModalDialog, Buttons, OkButton, CancelButton, |
||||
|
EnterButton, ColorScheme, WWLabel, read_QIcon, IconLabel) |
||||
|
from .amountedit import BTCAmountEdit |
||||
|
|
||||
|
|
||||
|
if TYPE_CHECKING: |
||||
|
from .main_window import ElectrumWindow |
||||
|
|
||||
|
|
||||
|
|
||||
|
class NewChannelDialog(WindowModalDialog): |
||||
|
|
||||
|
def __init__(self, window: 'ElectrumWindow', amount_sat: Optional[int] = None): |
||||
|
WindowModalDialog.__init__(self, window, _('Open Channel')) |
||||
|
self.window = window |
||||
|
self.network = window.network |
||||
|
self.config = window.config |
||||
|
self.lnworker = self.window.wallet.lnworker |
||||
|
self.trampolines = hardcoded_trampoline_nodes() |
||||
|
self.trampoline_names = list(self.trampolines.keys()) |
||||
|
vbox = QVBoxLayout(self) |
||||
|
if self.network.channel_db: |
||||
|
vbox.addWidget(QLabel(_('Enter Remote Node ID or connection string or invoice'))) |
||||
|
self.remote_nodeid = QLineEdit() |
||||
|
self.remote_nodeid.setMinimumWidth(700) |
||||
|
self.suggest_button = QPushButton(self, text=_('Suggest Peer')) |
||||
|
self.suggest_button.clicked.connect(self.on_suggest) |
||||
|
else: |
||||
|
vbox.addWidget(QLabel(_('Choose a trampoline node to open a channel with'))) |
||||
|
self.trampoline_combo = QComboBox() |
||||
|
self.trampoline_combo.addItems(self.trampoline_names) |
||||
|
self.trampoline_combo.setCurrentIndex(1) |
||||
|
self.amount_e = BTCAmountEdit(self.window.get_decimal_point) |
||||
|
self.amount_e.setAmount(amount_sat) |
||||
|
self.max_button = EnterButton(_("Max"), self.spend_max) |
||||
|
self.max_button.setFixedWidth(100) |
||||
|
self.max_button.setCheckable(True) |
||||
|
self.clear_button = QPushButton(self, text=_('Clear')) |
||||
|
self.clear_button.clicked.connect(self.on_clear) |
||||
|
self.clear_button.setFixedWidth(100) |
||||
|
h = QGridLayout() |
||||
|
if self.network.channel_db: |
||||
|
h.addWidget(QLabel(_('Remote Node ID')), 0, 0) |
||||
|
h.addWidget(self.remote_nodeid, 0, 1, 1, 4) |
||||
|
h.addWidget(self.suggest_button, 0, 5) |
||||
|
else: |
||||
|
h.addWidget(QLabel(_('Trampoline')), 0, 0) |
||||
|
h.addWidget(self.trampoline_combo, 0, 1, 1, 4) |
||||
|
h.addWidget(QLabel('Amount'), 2, 0) |
||||
|
h.addWidget(self.amount_e, 2, 1) |
||||
|
h.addWidget(self.max_button, 2, 2) |
||||
|
h.addWidget(self.clear_button, 2, 3) |
||||
|
vbox.addLayout(h) |
||||
|
vbox.addStretch() |
||||
|
ok_button = OkButton(self) |
||||
|
ok_button.setDefault(True) |
||||
|
vbox.addLayout(Buttons(CancelButton(self), ok_button)) |
||||
|
|
||||
|
def on_suggest(self): |
||||
|
self.network.start_gossip() |
||||
|
nodeid = self.lnworker.suggest_peer().hex() or '' |
||||
|
if not nodeid: |
||||
|
self.remote_nodeid.setText("") |
||||
|
self.remote_nodeid.setPlaceholderText( |
||||
|
"Please wait until the graph is synchronized to 30%, and then try again.") |
||||
|
else: |
||||
|
self.remote_nodeid.setText(nodeid) |
||||
|
self.remote_nodeid.repaint() # macOS hack for #6269 |
||||
|
|
||||
|
def on_clear(self): |
||||
|
self.amount_e.setText('') |
||||
|
self.amount_e.setFrozen(False) |
||||
|
self.amount_e.repaint() # macOS hack for #6269 |
||||
|
if self.network.channel_db: |
||||
|
remote_nodeid.setText('') |
||||
|
remote_nodeid.repaint() # macOS hack for #6269 |
||||
|
self.max_button.setChecked(False) |
||||
|
self.max_button.repaint() # macOS hack for #6269 |
||||
|
|
||||
|
def spend_max(self): |
||||
|
self.amount_e.setFrozen(self.max_button.isChecked()) |
||||
|
if not self.max_button.isChecked(): |
||||
|
return |
||||
|
dummy_nodeid = ecc.GENERATOR.get_public_key_bytes(compressed=True) |
||||
|
make_tx = self.window.mktx_for_open_channel(funding_sat='!', node_id=dummy_nodeid) |
||||
|
try: |
||||
|
tx = make_tx(None) |
||||
|
except (NotEnoughFunds, NoDynamicFeeEstimates) as e: |
||||
|
max_button.setChecked(False) |
||||
|
self.amount_e.setFrozen(False) |
||||
|
self.main_window.show_error(str(e)) |
||||
|
return |
||||
|
amount = tx.output_value() |
||||
|
amount = min(amount, LN_MAX_FUNDING_SAT) |
||||
|
self.amount_e.setAmount(amount) |
||||
|
|
||||
|
def run(self): |
||||
|
if not self.exec_(): |
||||
|
return |
||||
|
if self.max_button.isChecked() and self.amount_e.get_amount() < LN_MAX_FUNDING_SAT: |
||||
|
# if 'max' enabled and amount is strictly less than max allowed, |
||||
|
# that means we have fewer coins than max allowed, and hence we can |
||||
|
# spend all coins |
||||
|
funding_sat = '!' |
||||
|
else: |
||||
|
funding_sat = self.amount_e.get_amount() |
||||
|
if self.network.channel_db: |
||||
|
connect_str = str(self.remote_nodeid.text()).strip() |
||||
|
else: |
||||
|
name = self.trampoline_names[self.trampoline_combo.currentIndex()] |
||||
|
connect_str = str(self.trampolines[name]) |
||||
|
if not connect_str or not funding_sat: |
||||
|
return |
||||
|
self.window.open_channel(connect_str, funding_sat, 0) |
||||
|
return True |
||||
Loading…
Reference in new issue