AaronFiore/electrum
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disable qt swap fee slider on reverse swaps, change eta

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disables the fee slider in the swap dialog for reverse swaps as the tx
fee for claiming is not configurable by the user. Also replaces calls to
`sm.get_swap_tx_fee()` with `sm.get_fee_for_txbatcher()` as this is the
correct fee estimate for claim transactions, instead of the config fee
eta used by `get_swap_tx_fee()`.
This commit is contained in:
f321x
2025-06-09 16:56:11 +02:00
parent 4849d4d770
commit 37181cd3a8
4 changed files with 32 additions and 17 deletions
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2
electrum/commands.py
View File

@@ -1943,7 +1943,7 @@ class Commands(Logger):
funding_txid = None
else:
lightning_amount_sat = satoshis(lightning_amount)
claim_fee = sm.get_swap_tx_fee()
claim_fee = sm.get_fee_for_txbatcher()
onchain_amount_sat = satoshis(onchain_amount) + claim_fee
funding_txid = await wallet.lnworker.swap_manager.reverse_swap(
transport,

4
electrum/gui/qml/qeswaphelper.py
View File

@@ -581,7 +581,7 @@ class QESwapHelper(AuthMixin, QObject, QtEventListener):
server_miningfee = swap_manager.mining_fee
self.serverMiningfee = QEAmount(amount_sat=server_miningfee)
if self.isReverse:
self.miningfee = QEAmount(amount_sat=swap_manager.get_swap_tx_fee())
self.miningfee = QEAmount(amount_sat=swap_manager.get_fee_for_txbatcher())
self.check_valid(self._send_amount, self._receive_amount)
else:
# update tx only if slider isn't moved for a while
@@ -703,7 +703,7 @@ class QESwapHelper(AuthMixin, QObject, QtEventListener):
txid = await swap_manager.reverse_swap(
self.swap_transport,
lightning_amount_sat=lightning_amount,
expected_onchain_amount_sat=onchain_amount + swap_manager.get_swap_tx_fee(),
expected_onchain_amount_sat=onchain_amount + swap_manager.get_fee_for_txbatcher(),
)
try: # swaphelper might be destroyed at this point
if txid:

36
electrum/gui/qt/swap_dialog.py
View File

@@ -78,9 +78,13 @@ class SwapDialog(WindowModalDialog, QtEventListener):
self.send_amount_e.setEnabled(recv_amount_sat is None)
self.recv_amount_e.setEnabled(recv_amount_sat is None)
self.max_button.setEnabled(recv_amount_sat is None)
self.fee_policy = FeePolicy(self.config.FEE_POLICY)
fee_slider = FeeSlider(parent=self, network=self.network, fee_policy=self.fee_policy, callback=self.fee_slider_callback)
fee_combo = FeeComboBox(fee_slider)
self.fee_slider = FeeSlider(parent=self, network=self.network, fee_policy=self.fee_policy, callback=self.fee_slider_callback)
self.fee_combo = FeeComboBox(self.fee_slider)
self.fee_target_label = QLabel()
self._set_fee_slider_visibility(is_visible=not self.is_reverse)
self.swap_limits_label = QLabel()
self.fee_label = QLabel()
self.server_fee_label = QLabel()
@@ -100,8 +104,9 @@ class SwapDialog(WindowModalDialog, QtEventListener):
h.addWidget(self.server_fee_label, 5, 1, 1, 2)
h.addWidget(QLabel(_('Mining fee')+':'), 6, 0)
h.addWidget(self.fee_label, 6, 1, 1, 2)
h.addWidget(fee_slider, 7, 1)
h.addWidget(fee_combo, 7, 2)
h.addWidget(self.fee_slider, 7, 1)
h.addWidget(self.fee_combo, 7, 2)
h.addWidget(self.fee_target_label, 7, 0)
vbox.addLayout(h)
vbox.addStretch(1)
self.ok_button = OkButton(self)
@@ -113,7 +118,7 @@ class SwapDialog(WindowModalDialog, QtEventListener):
self.update()
self.needs_tx_update = True
self.window.gui_object.timer.timeout.connect(self.timer_actions)
fee_slider.update()
self.fee_slider.update()
self.register_callbacks()
def closeEvent(self, event):
@@ -146,14 +151,28 @@ class SwapDialog(WindowModalDialog, QtEventListener):
def fee_slider_callback(self, fee_rate):
self.config.FEE_POLICY = self.fee_policy.get_descriptor()
if not self.is_reverse:
self.fee_target_label.setText(self.fee_policy.get_target_text())
if self.send_follows:
self.on_recv_edited()
else:
self.on_send_edited()
self.update()
def _set_fee_slider_visibility(self, *, is_visible: bool):
if is_visible:
self.fee_slider.setEnabled(True)
self.fee_combo.setEnabled(True)
self.fee_target_label.setText(self.fee_policy.get_target_text())
else:
self.fee_slider.setEnabled(False)
self.fee_combo.setEnabled(False)
# show the eta of the swap claim
self.fee_target_label.setText(FeePolicy(self.config.FEE_POLICY_SWAPS).get_target_text())
def toggle_direction(self):
self.is_reverse = not self.is_reverse
self._set_fee_slider_visibility(is_visible=not self.is_reverse)
self.send_amount_e.setAmount(None)
self.recv_amount_e.setAmount(None)
self.max_button.setChecked(False)
@@ -222,7 +241,6 @@ class SwapDialog(WindowModalDialog, QtEventListener):
self.needs_tx_update = True
def update(self):
from .util import IconLabel
sm = self.swap_manager
w_base_unit = self.window.base_unit()
send_icon = read_QIcon("lightning.png" if self.is_reverse else "bitcoin.png")
@@ -266,10 +284,10 @@ class SwapDialog(WindowModalDialog, QtEventListener):
"""Updates self.fee_label. No other side-effects."""
if self.is_reverse:
sm = self.swap_manager
fee = sm.get_swap_tx_fee()
fee = sm.get_fee_for_txbatcher()
else:
fee = tx.get_fee() if tx else None
fee_text = self.window.format_amount(fee) + ' ' + self.window.base_unit() if fee else ''
fee_text = self.window.format_amount(fee) + ' ' + self.window.base_unit() if fee else _("no input")
self.fee_label.setText(fee_text)
self.fee_label.repaint() # macOS hack for #6269
@@ -286,7 +304,7 @@ class SwapDialog(WindowModalDialog, QtEventListener):
coro = sm.reverse_swap(
transport,
lightning_amount_sat=lightning_amount,
expected_onchain_amount_sat=onchain_amount + self.swap_manager.get_swap_tx_fee(),
expected_onchain_amount_sat=onchain_amount + self.swap_manager.get_fee_for_txbatcher(),
)
try:
# we must not leave the context, so we use run_couroutine_dialog

7
electrum/submarine_swaps.py
View File

@@ -476,9 +476,6 @@ class SwapManager(Logger):
self.logger.info('utxo value below dust threshold')
return
def get_swap_tx_fee(self):
return self._get_tx_fee(self.config.FEE_POLICY)
def get_fee_for_txbatcher(self):
return self._get_tx_fee(self.config.FEE_POLICY_SWAPS)
@@ -1094,13 +1091,13 @@ class SwapManager(Logger):
f"send_amount={send_amount} -> recv_amount={recv_amount} -> inverted_send_amount={inverted_send_amount}")
# second, add on-chain claim tx fee
if is_reverse and recv_amount is not None:
recv_amount -= self.get_swap_tx_fee()
recv_amount -= self.get_fee_for_txbatcher()
return recv_amount
def get_send_amount(self, recv_amount: Optional[int], *, is_reverse: bool) -> Optional[int]:
# first, add on-chain claim tx fee
if is_reverse and recv_amount is not None:
recv_amount += self.get_swap_tx_fee()
recv_amount += self.get_fee_for_txbatcher()
# second, add percentage fee
send_amount = self._get_send_amount(recv_amount, is_reverse=is_reverse)
# sanity check calculation can be inverted