mirror of
https://github.com/LBRYFoundation/LBRY-Vault.git
synced 2025-08-23 09:37:31 +00:00
dd6cb2caf7
- Output selection belongs in the Send tab. - Tx finalization is performed in a confirmation dialog (ConfirmTxDialog or PreviewTxDialog) - the fee slider is shown in the confirmation dialog - coin control works by selecting items in the coins tab - user can save invoices and pay them later - ConfirmTxDialog is used when opening channels and sweeping keys
773 lines
32 KiB
Python
773 lines
32 KiB
Python
#!/usr/bin/env python
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2012 thomasv@gitorious
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import sys
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import copy
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import datetime
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import traceback
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import time
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from typing import TYPE_CHECKING, Callable
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from functools import partial
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from decimal import Decimal
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from PyQt5.QtCore import QSize, Qt
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from PyQt5.QtGui import QTextCharFormat, QBrush, QFont, QPixmap
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from PyQt5.QtWidgets import (QDialog, QLabel, QPushButton, QHBoxLayout, QVBoxLayout, QWidget,
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QTextEdit, QFrame, QAction, QToolButton, QMenu, QCheckBox)
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import qrcode
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from qrcode import exceptions
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from electrum.simple_config import SimpleConfig
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from electrum.util import quantize_feerate
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from electrum.bitcoin import base_encode
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from electrum.i18n import _
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from electrum.plugin import run_hook
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from electrum import simple_config
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from electrum.util import bfh
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from electrum.transaction import SerializationError, Transaction, PartialTransaction, PartialTxInput
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from electrum.logging import get_logger
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from .util import (MessageBoxMixin, read_QIcon, Buttons, CopyButton, icon_path,
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MONOSPACE_FONT, ColorScheme, ButtonsLineEdit, text_dialog,
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char_width_in_lineedit, TRANSACTION_FILE_EXTENSION_FILTER)
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from .fee_slider import FeeSlider
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from .confirm_tx_dialog import TxEditor
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from .amountedit import FeerateEdit, BTCAmountEdit
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if TYPE_CHECKING:
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from .main_window import ElectrumWindow
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class TxSizeLabel(QLabel):
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def setAmount(self, byte_size):
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self.setText(('x %s bytes =' % byte_size) if byte_size else '')
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class QTextEditWithDefaultSize(QTextEdit):
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def sizeHint(self):
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return QSize(0, 100)
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SAVE_BUTTON_ENABLED_TOOLTIP = _("Save transaction offline")
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SAVE_BUTTON_DISABLED_TOOLTIP = _("Please sign this transaction in order to save it")
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_logger = get_logger(__name__)
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dialogs = [] # Otherwise python randomly garbage collects the dialogs...
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def show_transaction(tx: Transaction, *, parent: 'ElectrumWindow', invoice=None, desc=None, prompt_if_unsaved=False):
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try:
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d = TxDialog(tx, parent=parent, invoice=invoice, desc=desc, prompt_if_unsaved=prompt_if_unsaved)
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except SerializationError as e:
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_logger.exception('unable to deserialize the transaction')
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parent.show_critical(_("Electrum was unable to deserialize the transaction:") + "\n" + str(e))
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else:
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dialogs.append(d)
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d.show()
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class BaseTxDialog(QDialog, MessageBoxMixin):
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def __init__(self, *, parent: 'ElectrumWindow', invoice, desc, prompt_if_unsaved, finalized):
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'''Transactions in the wallet will show their description.
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Pass desc to give a description for txs not yet in the wallet.
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'''
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# We want to be a top-level window
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QDialog.__init__(self, parent=None)
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self.finalized = finalized
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self.main_window = parent
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self.config = parent.config
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self.wallet = parent.wallet
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self.prompt_if_unsaved = prompt_if_unsaved
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self.saved = False
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self.desc = desc
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self.invoice = invoice
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self.setMinimumWidth(950)
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self.set_title()
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vbox = QVBoxLayout()
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self.setLayout(vbox)
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vbox.addWidget(QLabel(_("Transaction ID:")))
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self.tx_hash_e = ButtonsLineEdit()
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qr_show = lambda: parent.show_qrcode(str(self.tx_hash_e.text()), 'Transaction ID', parent=self)
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qr_icon = "qrcode_white.png" if ColorScheme.dark_scheme else "qrcode.png"
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self.tx_hash_e.addButton(qr_icon, qr_show, _("Show as QR code"))
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self.tx_hash_e.setReadOnly(True)
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vbox.addWidget(self.tx_hash_e)
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self.add_tx_stats(vbox)
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vbox.addSpacing(10)
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self.inputs_header = QLabel()
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vbox.addWidget(self.inputs_header)
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self.inputs_textedit = QTextEditWithDefaultSize()
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vbox.addWidget(self.inputs_textedit)
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self.outputs_header = QLabel()
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vbox.addWidget(self.outputs_header)
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self.outputs_textedit = QTextEditWithDefaultSize()
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vbox.addWidget(self.outputs_textedit)
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self.sign_button = b = QPushButton(_("Sign"))
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b.clicked.connect(self.sign)
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self.broadcast_button = b = QPushButton(_("Broadcast"))
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b.clicked.connect(self.do_broadcast)
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self.save_button = b = QPushButton(_("Save"))
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save_button_disabled = False #not tx.is_complete()
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b.setDisabled(save_button_disabled)
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if save_button_disabled:
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b.setToolTip(SAVE_BUTTON_DISABLED_TOOLTIP)
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else:
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b.setToolTip(SAVE_BUTTON_ENABLED_TOOLTIP)
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b.clicked.connect(self.save)
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self.cancel_button = b = QPushButton(_("Close"))
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b.clicked.connect(self.close)
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b.setDefault(True)
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self.export_actions_menu = export_actions_menu = QMenu()
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self.add_export_actions_to_menu(export_actions_menu)
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export_actions_menu.addSeparator()
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#if isinstance(tx, PartialTransaction):
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export_for_coinjoin_submenu = export_actions_menu.addMenu(_("For CoinJoin; strip privates"))
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self.add_export_actions_to_menu(export_for_coinjoin_submenu, gettx=self._gettx_for_coinjoin)
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self.export_actions_button = QToolButton()
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self.export_actions_button.setText(_("Export"))
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self.export_actions_button.setMenu(export_actions_menu)
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self.export_actions_button.setPopupMode(QToolButton.InstantPopup)
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self.finalize_button = QPushButton(_('Finalize'))
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self.finalize_button.clicked.connect(self.on_finalize)
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partial_tx_actions_menu = QMenu()
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ptx_merge_sigs_action = QAction(_("Merge signatures from"), self)
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ptx_merge_sigs_action.triggered.connect(self.merge_sigs)
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partial_tx_actions_menu.addAction(ptx_merge_sigs_action)
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ptx_join_txs_action = QAction(_("Join inputs/outputs"), self)
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ptx_join_txs_action.triggered.connect(self.join_tx_with_another)
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partial_tx_actions_menu.addAction(ptx_join_txs_action)
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self.partial_tx_actions_button = QToolButton()
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self.partial_tx_actions_button.setText(_("Combine"))
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self.partial_tx_actions_button.setMenu(partial_tx_actions_menu)
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self.partial_tx_actions_button.setPopupMode(QToolButton.InstantPopup)
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# Action buttons
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self.buttons = []
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#if isinstance(tx, PartialTransaction):
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self.buttons.append(self.partial_tx_actions_button)
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self.buttons += [self.sign_button, self.broadcast_button, self.cancel_button]
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# Transaction sharing buttons
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self.sharing_buttons = [self.finalize_button, self.export_actions_button, self.save_button]
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run_hook('transaction_dialog', self)
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if not self.finalized:
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self.create_fee_controls()
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vbox.addWidget(self.feecontrol_fields)
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self.hbox = hbox = QHBoxLayout()
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hbox.addLayout(Buttons(*self.sharing_buttons))
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hbox.addStretch(1)
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hbox.addLayout(Buttons(*self.buttons))
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vbox.addLayout(hbox)
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self.set_buttons_visibility()
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def set_buttons_visibility(self):
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for b in [self.export_actions_button, self.save_button, self.sign_button, self.broadcast_button, self.partial_tx_actions_button]:
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b.setVisible(self.finalized)
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for b in [self.finalize_button]:
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b.setVisible(not self.finalized)
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def set_tx(self, tx):
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# Take a copy; it might get updated in the main window by
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# e.g. the FX plugin. If this happens during or after a long
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# sign operation the signatures are lost.
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self.tx = tx = copy.deepcopy(tx)
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try:
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self.tx.deserialize()
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except BaseException as e:
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raise SerializationError(e)
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# if the wallet can populate the inputs with more info, do it now.
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# as a result, e.g. we might learn an imported address tx is segwit,
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# or that a beyond-gap-limit address is is_mine
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tx.add_info_from_wallet(self.wallet)
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def do_broadcast(self):
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self.main_window.push_top_level_window(self)
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try:
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self.main_window.broadcast_transaction(self.tx, invoice=self.invoice, tx_desc=self.desc)
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finally:
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self.main_window.pop_top_level_window(self)
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self.saved = True
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self.update()
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def closeEvent(self, event):
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if (self.prompt_if_unsaved and not self.saved
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and not self.question(_('This transaction is not saved. Close anyway?'), title=_("Warning"))):
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event.ignore()
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else:
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event.accept()
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try:
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dialogs.remove(self)
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except ValueError:
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pass # was not in list already
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def reject(self):
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# Override escape-key to close normally (and invoke closeEvent)
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self.close()
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def add_export_actions_to_menu(self, menu: QMenu, *, gettx: Callable[[], Transaction] = None) -> None:
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if gettx is None:
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gettx = lambda: None
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action = QAction(_("Copy to clipboard"), self)
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action.triggered.connect(lambda: self.copy_to_clipboard(tx=gettx()))
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menu.addAction(action)
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qr_icon = "qrcode_white.png" if ColorScheme.dark_scheme else "qrcode.png"
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action = QAction(read_QIcon(qr_icon), _("Show as QR code"), self)
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action.triggered.connect(lambda: self.show_qr(tx=gettx()))
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menu.addAction(action)
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action = QAction(_("Export to file"), self)
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action.triggered.connect(lambda: self.export_to_file(tx=gettx()))
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menu.addAction(action)
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def _gettx_for_coinjoin(self) -> PartialTransaction:
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if not isinstance(self.tx, PartialTransaction):
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raise Exception("Can only export partial transactions for coinjoins.")
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tx = copy.deepcopy(self.tx)
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tx.prepare_for_export_for_coinjoin()
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return tx
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def copy_to_clipboard(self, *, tx: Transaction = None):
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if tx is None:
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tx = self.tx
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self.main_window.app.clipboard().setText(str(tx))
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def show_qr(self, *, tx: Transaction = None):
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if tx is None:
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tx = self.tx
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tx = copy.deepcopy(tx) # make copy as we mutate tx
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if isinstance(tx, PartialTransaction):
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# this makes QR codes a lot smaller (or just possible in the first place!)
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tx.convert_all_utxos_to_witness_utxos()
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text = tx.serialize_as_bytes()
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text = base_encode(text, base=43)
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try:
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self.main_window.show_qrcode(text, 'Transaction', parent=self)
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except qrcode.exceptions.DataOverflowError:
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self.show_error(_('Failed to display QR code.') + '\n' +
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_('Transaction is too large in size.'))
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except Exception as e:
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self.show_error(_('Failed to display QR code.') + '\n' + repr(e))
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def sign(self):
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def sign_done(success):
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# note: with segwit we could save partially signed tx, because they have a txid
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if self.tx.is_complete():
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self.prompt_if_unsaved = True
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self.saved = False
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self.save_button.setDisabled(False)
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self.save_button.setToolTip(SAVE_BUTTON_ENABLED_TOOLTIP)
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self.update()
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self.main_window.pop_top_level_window(self)
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self.sign_button.setDisabled(True)
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self.main_window.push_top_level_window(self)
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self.main_window.sign_tx(self.tx, sign_done, self.external_keypairs)
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def save(self):
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self.main_window.push_top_level_window(self)
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if self.main_window.save_transaction_into_wallet(self.tx):
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self.save_button.setDisabled(True)
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self.saved = True
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self.main_window.pop_top_level_window(self)
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def export_to_file(self, *, tx: Transaction = None):
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if tx is None:
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tx = self.tx
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if isinstance(tx, PartialTransaction):
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tx.finalize_psbt()
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if tx.is_complete():
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name = 'signed_%s.txn' % (tx.txid()[0:8])
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else:
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name = self.wallet.basename() + time.strftime('-%Y%m%d-%H%M.psbt')
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fileName = self.main_window.getSaveFileName(_("Select where to save your signed transaction"),
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name,
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TRANSACTION_FILE_EXTENSION_FILTER)
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if not fileName:
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return
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if tx.is_complete(): # network tx hex
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with open(fileName, "w+") as f:
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network_tx_hex = tx.serialize_to_network()
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f.write(network_tx_hex + '\n')
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else: # if partial: PSBT bytes
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assert isinstance(tx, PartialTransaction)
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with open(fileName, "wb+") as f:
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f.write(tx.serialize_as_bytes())
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self.show_message(_("Transaction exported successfully"))
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self.saved = True
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def merge_sigs(self):
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if not isinstance(self.tx, PartialTransaction):
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return
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text = text_dialog(self, _('Input raw transaction'),
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_("Transaction to merge signatures from") + ":",
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_("Load transaction"))
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if not text:
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return
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tx = self.main_window.tx_from_text(text)
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if not tx:
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return
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try:
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self.tx.combine_with_other_psbt(tx)
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except Exception as e:
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self.show_error(_("Error combining partial transactions") + ":\n" + repr(e))
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return
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self.update()
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def join_tx_with_another(self):
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if not isinstance(self.tx, PartialTransaction):
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return
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text = text_dialog(self, _('Input raw transaction'),
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_("Transaction to join with") + " (" + _("add inputs and outputs") + "):",
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_("Load transaction"))
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if not text:
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return
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tx = self.main_window.tx_from_text(text)
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if not tx:
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return
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try:
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self.tx.join_with_other_psbt(tx)
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except Exception as e:
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self.show_error(_("Error joining partial transactions") + ":\n" + repr(e))
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return
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self.update()
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def update(self):
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if not self.finalized:
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self.update_fee_fields()
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if self.tx is None:
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return
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self.update_io()
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desc = self.desc
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base_unit = self.main_window.base_unit()
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format_amount = self.main_window.format_amount
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tx_details = self.wallet.get_tx_info(self.tx)
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tx_mined_status = tx_details.tx_mined_status
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exp_n = tx_details.mempool_depth_bytes
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amount, fee = tx_details.amount, tx_details.fee
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size = self.tx.estimated_size()
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self.broadcast_button.setEnabled(tx_details.can_broadcast)
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can_sign = not self.tx.is_complete() and \
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(self.wallet.can_sign(self.tx) or bool(self.main_window.tx_external_keypairs))
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self.sign_button.setEnabled(can_sign)
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self.tx_hash_e.setText(tx_details.txid or _('Unknown'))
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if desc is None:
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self.tx_desc.hide()
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else:
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self.tx_desc.setText(_("Description") + ': ' + desc)
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self.tx_desc.show()
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self.status_label.setText(_('Status:') + ' ' + tx_details.status)
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if tx_mined_status.timestamp:
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time_str = datetime.datetime.fromtimestamp(tx_mined_status.timestamp).isoformat(' ')[:-3]
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self.date_label.setText(_("Date: {}").format(time_str))
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self.date_label.show()
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elif exp_n:
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text = '%.2f MB'%(exp_n/1000000)
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self.date_label.setText(_('Position in mempool: {} from tip').format(text))
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self.date_label.show()
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else:
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self.date_label.hide()
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self.locktime_label.setText(f"LockTime: {self.tx.locktime}")
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self.rbf_label.setText(f"Replace by Fee: {not self.tx.is_final()}")
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if tx_mined_status.header_hash:
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self.block_hash_label.setText(_("Included in block: {}")
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.format(tx_mined_status.header_hash))
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self.block_height_label.setText(_("At block height: {}")
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.format(tx_mined_status.height))
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else:
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self.block_hash_label.hide()
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self.block_height_label.hide()
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if amount is None:
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amount_str = _("Transaction unrelated to your wallet")
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elif amount > 0:
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amount_str = _("Amount received:") + ' %s'% format_amount(amount) + ' ' + base_unit
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else:
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amount_str = _("Amount sent:") + ' %s'% format_amount(-amount) + ' ' + base_unit
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size_str = _("Size:") + ' %d bytes'% size
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fee_str = _("Fee") + ': %s' % (format_amount(fee) + ' ' + base_unit if fee is not None else _('unknown'))
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if fee is not None:
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fee_rate = fee/size*1000
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fee_str += ' ( %s ) ' % self.main_window.format_fee_rate(fee_rate)
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feerate_warning = simple_config.FEERATE_WARNING_HIGH_FEE
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if fee_rate > feerate_warning:
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fee_str += ' - ' + _('Warning') + ': ' + _("high fee") + '!'
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if isinstance(self.tx, PartialTransaction):
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risk_of_burning_coins = (can_sign and fee is not None
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and self.tx.is_there_risk_of_burning_coins_as_fees())
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self.fee_warning_icon.setVisible(risk_of_burning_coins)
|
|
self.amount_label.setText(amount_str)
|
|
self.fee_label.setText(fee_str)
|
|
self.size_label.setText(size_str)
|
|
run_hook('transaction_dialog_update', self)
|
|
|
|
def update_io(self):
|
|
self.inputs_header.setText(_("Inputs") + ' (%d)'%len(self.tx.inputs()))
|
|
ext = QTextCharFormat()
|
|
rec = QTextCharFormat()
|
|
rec.setBackground(QBrush(ColorScheme.GREEN.as_color(background=True)))
|
|
rec.setToolTip(_("Wallet receive address"))
|
|
chg = QTextCharFormat()
|
|
chg.setBackground(QBrush(ColorScheme.YELLOW.as_color(background=True)))
|
|
chg.setToolTip(_("Wallet change address"))
|
|
twofactor = QTextCharFormat()
|
|
twofactor.setBackground(QBrush(ColorScheme.BLUE.as_color(background=True)))
|
|
twofactor.setToolTip(_("TrustedCoin (2FA) fee for the next batch of transactions"))
|
|
|
|
def text_format(addr):
|
|
if self.wallet.is_mine(addr):
|
|
return chg if self.wallet.is_change(addr) else rec
|
|
elif self.wallet.is_billing_address(addr):
|
|
return twofactor
|
|
return ext
|
|
|
|
def format_amount(amt):
|
|
return self.main_window.format_amount(amt, whitespaces=True)
|
|
|
|
i_text = self.inputs_textedit
|
|
i_text.clear()
|
|
i_text.setFont(QFont(MONOSPACE_FONT))
|
|
i_text.setReadOnly(True)
|
|
cursor = i_text.textCursor()
|
|
for txin in self.tx.inputs():
|
|
if txin.is_coinbase():
|
|
cursor.insertText('coinbase')
|
|
else:
|
|
prevout_hash = txin.prevout.txid.hex()
|
|
prevout_n = txin.prevout.out_idx
|
|
cursor.insertText(prevout_hash + ":%-4d " % prevout_n, ext)
|
|
addr = self.wallet.get_txin_address(txin)
|
|
if addr is None:
|
|
addr = ''
|
|
#cursor.insertText(addr, text_format(addr))
|
|
if isinstance(txin, PartialTxInput) and txin.value_sats() is not None:
|
|
cursor.insertText(format_amount(txin.value_sats()), ext)
|
|
cursor.insertBlock()
|
|
|
|
self.outputs_header.setText(_("Outputs") + ' (%d)'%len(self.tx.outputs()))
|
|
o_text = self.outputs_textedit
|
|
o_text.clear()
|
|
o_text.setFont(QFont(MONOSPACE_FONT))
|
|
o_text.setReadOnly(True)
|
|
cursor = o_text.textCursor()
|
|
for o in self.tx.outputs():
|
|
addr, v = o.get_ui_address_str(), o.value
|
|
cursor.insertText(addr, text_format(addr))
|
|
if v is not None:
|
|
cursor.insertText('\t', ext)
|
|
cursor.insertText(format_amount(v), ext)
|
|
cursor.insertBlock()
|
|
|
|
def add_tx_stats(self, vbox):
|
|
hbox_stats = QHBoxLayout()
|
|
|
|
# left column
|
|
vbox_left = QVBoxLayout()
|
|
self.tx_desc = TxDetailLabel(word_wrap=True)
|
|
vbox_left.addWidget(self.tx_desc)
|
|
self.status_label = TxDetailLabel()
|
|
vbox_left.addWidget(self.status_label)
|
|
self.date_label = TxDetailLabel()
|
|
vbox_left.addWidget(self.date_label)
|
|
self.amount_label = TxDetailLabel()
|
|
vbox_left.addWidget(self.amount_label)
|
|
|
|
fee_hbox = QHBoxLayout()
|
|
self.fee_label = TxDetailLabel()
|
|
fee_hbox.addWidget(self.fee_label)
|
|
self.fee_warning_icon = QLabel()
|
|
pixmap = QPixmap(icon_path("warning"))
|
|
pixmap_size = round(2 * char_width_in_lineedit())
|
|
pixmap = pixmap.scaled(pixmap_size, pixmap_size, Qt.KeepAspectRatio, Qt.SmoothTransformation)
|
|
self.fee_warning_icon.setPixmap(pixmap)
|
|
self.fee_warning_icon.setToolTip(_("Warning") + ": "
|
|
+ _("The fee could not be verified. Signing non-segwit inputs is risky:\n"
|
|
"if this transaction was maliciously modified before you sign,\n"
|
|
"you might end up paying a higher mining fee than displayed."))
|
|
self.fee_warning_icon.setVisible(False)
|
|
fee_hbox.addWidget(self.fee_warning_icon)
|
|
fee_hbox.addStretch(1)
|
|
vbox_left.addLayout(fee_hbox)
|
|
|
|
vbox_left.addStretch(1)
|
|
hbox_stats.addLayout(vbox_left, 50)
|
|
|
|
# vertical line separator
|
|
line_separator = QFrame()
|
|
line_separator.setFrameShape(QFrame.VLine)
|
|
line_separator.setFrameShadow(QFrame.Sunken)
|
|
line_separator.setLineWidth(1)
|
|
hbox_stats.addWidget(line_separator)
|
|
|
|
# right column
|
|
vbox_right = QVBoxLayout()
|
|
self.size_label = TxDetailLabel()
|
|
vbox_right.addWidget(self.size_label)
|
|
self.rbf_label = TxDetailLabel()
|
|
vbox_right.addWidget(self.rbf_label)
|
|
self.rbf_cb = QCheckBox(_('Replace by fee'))
|
|
vbox_right.addWidget(self.rbf_cb)
|
|
self.rbf_label.setVisible(self.finalized)
|
|
self.rbf_cb.setVisible(not self.finalized)
|
|
|
|
self.locktime_label = TxDetailLabel()
|
|
vbox_right.addWidget(self.locktime_label)
|
|
self.block_hash_label = TxDetailLabel(word_wrap=True)
|
|
vbox_right.addWidget(self.block_hash_label)
|
|
self.block_height_label = TxDetailLabel()
|
|
vbox_right.addWidget(self.block_height_label)
|
|
vbox_right.addStretch(1)
|
|
hbox_stats.addLayout(vbox_right, 50)
|
|
|
|
vbox.addLayout(hbox_stats)
|
|
|
|
def set_title(self):
|
|
self.setWindowTitle(_("Create transaction") if not self.finalized else _("Transaction"))
|
|
|
|
def on_finalize(self):
|
|
self.finalized = True
|
|
for widget in [self.fee_slider, self.feecontrol_fields, self.rbf_cb]:
|
|
widget.setEnabled(False)
|
|
widget.setVisible(False)
|
|
for widget in [self.rbf_label]:
|
|
widget.setVisible(True)
|
|
self.set_title()
|
|
self.set_buttons_visibility()
|
|
|
|
|
|
class QTextEditWithDefaultSize(QTextEdit):
|
|
def sizeHint(self):
|
|
return QSize(0, 100)
|
|
|
|
|
|
class TxDetailLabel(QLabel):
|
|
def __init__(self, *, word_wrap=None):
|
|
super().__init__()
|
|
self.setTextInteractionFlags(Qt.TextSelectableByMouse)
|
|
if word_wrap is not None:
|
|
self.setWordWrap(word_wrap)
|
|
|
|
|
|
class TxDialog(BaseTxDialog):
|
|
def __init__(self, tx: Transaction, *, parent: 'ElectrumWindow', invoice, desc, prompt_if_unsaved):
|
|
BaseTxDialog.__init__(self, parent=parent, invoice=invoice, desc=desc, prompt_if_unsaved=prompt_if_unsaved, finalized=True)
|
|
self.set_tx(tx)
|
|
self.update()
|
|
|
|
|
|
|
|
class PreviewTxDialog(BaseTxDialog, TxEditor):
|
|
|
|
def __init__(self, inputs, outputs, external_keypairs, *, window: 'ElectrumWindow', invoice):
|
|
TxEditor.__init__(self, window, inputs, outputs, external_keypairs)
|
|
BaseTxDialog.__init__(self, parent=window, invoice=invoice, desc='', prompt_if_unsaved=False, finalized=False)
|
|
self.update_tx()
|
|
self.update()
|
|
|
|
def create_fee_controls(self):
|
|
|
|
self.size_e = TxSizeLabel()
|
|
self.size_e.setAlignment(Qt.AlignCenter)
|
|
self.size_e.setAmount(0)
|
|
self.size_e.setStyleSheet(ColorScheme.DEFAULT.as_stylesheet())
|
|
|
|
self.feerate_e = FeerateEdit(lambda: 0)
|
|
self.feerate_e.setAmount(self.config.fee_per_byte())
|
|
self.feerate_e.textEdited.connect(partial(self.on_fee_or_feerate, self.feerate_e, False))
|
|
self.feerate_e.editingFinished.connect(partial(self.on_fee_or_feerate, self.feerate_e, True))
|
|
|
|
self.fee_e = BTCAmountEdit(self.main_window.get_decimal_point)
|
|
self.fee_e.textEdited.connect(partial(self.on_fee_or_feerate, self.fee_e, False))
|
|
self.fee_e.editingFinished.connect(partial(self.on_fee_or_feerate, self.fee_e, True))
|
|
|
|
self.fee_e.textChanged.connect(self.entry_changed)
|
|
self.feerate_e.textChanged.connect(self.entry_changed)
|
|
|
|
self.fee_slider = FeeSlider(self, self.config, self.fee_slider_callback)
|
|
self.fee_slider.setFixedWidth(self.fee_e.width())
|
|
|
|
def feerounding_onclick():
|
|
text = (self.feerounding_text + '\n\n' +
|
|
_('To somewhat protect your privacy, Electrum tries to create change with similar precision to other outputs.') + ' ' +
|
|
_('At most 100 satoshis might be lost due to this rounding.') + ' ' +
|
|
_("You can disable this setting in '{}'.").format(_('Preferences')) + '\n' +
|
|
_('Also, dust is not kept as change, but added to the fee.') + '\n' +
|
|
_('Also, when batching RBF transactions, BIP 125 imposes a lower bound on the fee.'))
|
|
self.show_message(title=_('Fee rounding'), msg=text)
|
|
|
|
self.feerounding_icon = QPushButton(read_QIcon('info.png'), '')
|
|
self.feerounding_icon.setFixedWidth(round(2.2 * char_width_in_lineedit()))
|
|
self.feerounding_icon.setFlat(True)
|
|
self.feerounding_icon.clicked.connect(feerounding_onclick)
|
|
self.feerounding_icon.setVisible(False)
|
|
|
|
self.fee_adv_controls = QWidget()
|
|
hbox = QHBoxLayout(self.fee_adv_controls)
|
|
hbox.setContentsMargins(0, 0, 0, 0)
|
|
hbox.addWidget(self.feerate_e)
|
|
hbox.addWidget(self.size_e)
|
|
hbox.addWidget(self.fee_e)
|
|
hbox.addWidget(self.feerounding_icon, Qt.AlignLeft)
|
|
hbox.addStretch(1)
|
|
|
|
self.feecontrol_fields = QWidget()
|
|
vbox_feecontrol = QVBoxLayout(self.feecontrol_fields)
|
|
vbox_feecontrol.setContentsMargins(0, 0, 0, 0)
|
|
vbox_feecontrol.addWidget(self.fee_adv_controls)
|
|
vbox_feecontrol.addWidget(self.fee_slider)
|
|
|
|
def fee_slider_callback(self, dyn, pos, fee_rate):
|
|
super().fee_slider_callback(dyn, pos, fee_rate)
|
|
self.fee_slider.activate()
|
|
if fee_rate:
|
|
fee_rate = Decimal(fee_rate)
|
|
self.feerate_e.setAmount(quantize_feerate(fee_rate / 1000))
|
|
else:
|
|
self.feerate_e.setAmount(None)
|
|
self.fee_e.setModified(False)
|
|
|
|
def on_fee_or_feerate(self, edit_changed, editing_finished):
|
|
edit_other = self.feerate_e if edit_changed == self.fee_e else self.fee_e
|
|
if editing_finished:
|
|
if edit_changed.get_amount() is None:
|
|
# This is so that when the user blanks the fee and moves on,
|
|
# we go back to auto-calculate mode and put a fee back.
|
|
edit_changed.setModified(False)
|
|
else:
|
|
# edit_changed was edited just now, so make sure we will
|
|
# freeze the correct fee setting (this)
|
|
edit_other.setModified(False)
|
|
self.fee_slider.deactivate()
|
|
self.update()
|
|
|
|
def is_send_fee_frozen(self):
|
|
return self.fee_e.isVisible() and self.fee_e.isModified() \
|
|
and (self.fee_e.text() or self.fee_e.hasFocus())
|
|
|
|
def is_send_feerate_frozen(self):
|
|
return self.feerate_e.isVisible() and self.feerate_e.isModified() \
|
|
and (self.feerate_e.text() or self.feerate_e.hasFocus())
|
|
|
|
def set_feerounding_text(self, num_satoshis_added):
|
|
self.feerounding_text = (_('Additional {} satoshis are going to be added.')
|
|
.format(num_satoshis_added))
|
|
|
|
def get_fee_estimator(self):
|
|
if self.is_send_fee_frozen():
|
|
fee_estimator = self.fee_e.get_amount()
|
|
elif self.is_send_feerate_frozen():
|
|
amount = self.feerate_e.get_amount() # sat/byte feerate
|
|
amount = 0 if amount is None else amount * 1000 # sat/kilobyte feerate
|
|
fee_estimator = partial(
|
|
SimpleConfig.estimate_fee_for_feerate, amount)
|
|
else:
|
|
fee_estimator = None
|
|
return fee_estimator
|
|
|
|
def entry_changed(self):
|
|
# blue color denotes auto-filled values
|
|
text = ""
|
|
fee_color = ColorScheme.DEFAULT
|
|
feerate_color = ColorScheme.DEFAULT
|
|
if self.not_enough_funds:
|
|
fee_color = ColorScheme.RED
|
|
feerate_color = ColorScheme.RED
|
|
elif self.fee_e.isModified():
|
|
feerate_color = ColorScheme.BLUE
|
|
elif self.feerate_e.isModified():
|
|
fee_color = ColorScheme.BLUE
|
|
else:
|
|
fee_color = ColorScheme.BLUE
|
|
feerate_color = ColorScheme.BLUE
|
|
self.fee_e.setStyleSheet(fee_color.as_stylesheet())
|
|
self.feerate_e.setStyleSheet(feerate_color.as_stylesheet())
|
|
#
|
|
self.needs_update = True
|
|
|
|
def update_fee_fields(self):
|
|
freeze_fee = self.is_send_fee_frozen()
|
|
freeze_feerate = self.is_send_feerate_frozen()
|
|
if self.no_dynfee_estimates:
|
|
size = self.tx.estimated_size()
|
|
self.size_e.setAmount(size)
|
|
if self.not_enough_funds or self.no_dynfee_estimates:
|
|
if not freeze_fee:
|
|
self.fee_e.setAmount(None)
|
|
if not freeze_feerate:
|
|
self.feerate_e.setAmount(None)
|
|
self.feerounding_icon.setVisible(False)
|
|
return
|
|
|
|
tx = self.tx
|
|
size = tx.estimated_size()
|
|
fee = tx.get_fee()
|
|
|
|
self.size_e.setAmount(size)
|
|
|
|
# Displayed fee/fee_rate values are set according to user input.
|
|
# Due to rounding or dropping dust in CoinChooser,
|
|
# actual fees often differ somewhat.
|
|
if freeze_feerate or self.fee_slider.is_active():
|
|
displayed_feerate = self.feerate_e.get_amount()
|
|
if displayed_feerate is not None:
|
|
displayed_feerate = quantize_feerate(displayed_feerate)
|
|
else:
|
|
# fallback to actual fee
|
|
displayed_feerate = quantize_feerate(fee / size) if fee is not None else None
|
|
self.feerate_e.setAmount(displayed_feerate)
|
|
displayed_fee = round(displayed_feerate * size) if displayed_feerate is not None else None
|
|
self.fee_e.setAmount(displayed_fee)
|
|
else:
|
|
if freeze_fee:
|
|
displayed_fee = self.fee_e.get_amount()
|
|
else:
|
|
# fallback to actual fee if nothing is frozen
|
|
displayed_fee = fee
|
|
self.fee_e.setAmount(displayed_fee)
|
|
displayed_fee = displayed_fee if displayed_fee else 0
|
|
displayed_feerate = quantize_feerate(displayed_fee / size) if displayed_fee is not None else None
|
|
self.feerate_e.setAmount(displayed_feerate)
|
|
|
|
# show/hide fee rounding icon
|
|
feerounding = (fee - displayed_fee) if fee else 0
|
|
self.set_feerounding_text(int(feerounding))
|
|
self.feerounding_icon.setToolTip(self.feerounding_text)
|
|
self.feerounding_icon.setVisible(abs(feerounding) >= 1)
|