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swaps dialog: handle make_unsigned_tx exceptions. fixes #6246

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This commit is contained in:
ThomasV 2020-06-23 12:02:34 +02:00
parent d870778a1b
commit 436ca11021
1 changed files with 15 additions and 6 deletions
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21
electrum/gui/qt/swap_dialog.py
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@ -3,6 +3,7 @@ from typing import TYPE_CHECKING, Optional
from PyQt5.QtWidgets import QLabel, QVBoxLayout, QGridLayout, QPushButton
from electrum.i18n import _
from electrum.util import NotEnoughFunds, NoDynamicFeeEstimates
from electrum.lnutil import ln_dummy_address
from electrum.transaction import PartialTxOutput, PartialTransaction
@ -73,9 +74,10 @@ class SwapDialog(WindowModalDialog):
h.addWidget(fee_combo, 6, 2)
vbox.addLayout(h)
vbox.addStretch(1)
ok_button = OkButton(self)
ok_button.setDefault(True)
vbox.addLayout(Buttons(CancelButton(self), ok_button))
self.ok_button = OkButton(self)
self.ok_button.setDefault(True)
self.ok_button.setEnabled(False)
vbox.addLayout(Buttons(CancelButton(self), self.ok_button))
self.update()
def fee_slider_callback(self, dyn, pos, fee_rate):
@ -140,6 +142,7 @@ class SwapDialog(WindowModalDialog):
self.recv_amount_e.follows = False
self.send_follows = False
self.update_fee()
self.ok_button.setEnabled(recv_amount is not None)
def on_recv_edited(self):
if self.recv_amount_e.follows:
@ -155,6 +158,7 @@ class SwapDialog(WindowModalDialog):
self.send_amount_e.follows = False
self.send_follows = True
self.update_fee()
self.ok_button.setEnabled(send_amount is not None)
def update(self):
sm = self.swap_manager
@ -206,12 +210,17 @@ class SwapDialog(WindowModalDialog):
def update_tx(self, onchain_amount):
if onchain_amount is None:
self.tx = None
self.ok_button.setEnabled(False)
return
outputs = [PartialTxOutput.from_address_and_value(ln_dummy_address(), onchain_amount)]
coins = self.window.get_coins()
self.tx = self.window.wallet.make_unsigned_transaction(
coins=coins,
outputs=outputs)
try:
self.tx = self.window.wallet.make_unsigned_transaction(
coins=coins,
outputs=outputs)
except (NotEnoughFunds, NoDynamicFeeEstimates) as e:
self.tx = None
self.ok_button.setEnabled(False)
def do_normal_swap(self, lightning_amount, onchain_amount, password):
coro = self.swap_manager.normal_swap(lightning_amount, onchain_amount, password, tx=self.tx)