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395 lines
15 KiB
395 lines
15 KiB
#!/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 os |
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import signal |
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import sys |
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import traceback |
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import threading |
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from typing import Optional, TYPE_CHECKING |
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try: |
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import PyQt5 |
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except Exception: |
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sys.exit("Error: Could not import PyQt5 on Linux systems, you may try 'sudo apt-get install python3-pyqt5'") |
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from PyQt5.QtGui import QGuiApplication |
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from PyQt5.QtWidgets import (QApplication, QSystemTrayIcon, QWidget, QMenu, |
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QMessageBox) |
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from PyQt5.QtCore import QObject, pyqtSignal, QTimer |
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import PyQt5.QtCore as QtCore |
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from electrum.i18n import _, set_language |
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from electrum.plugin import run_hook |
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from electrum.base_wizard import GoBack |
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from electrum.util import (UserCancelled, profiler, |
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WalletFileException, BitcoinException, get_new_wallet_name) |
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from electrum.wallet import Wallet, Abstract_Wallet |
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from electrum.wallet_db import WalletDB |
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from electrum.logging import Logger |
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from .installwizard import InstallWizard, WalletAlreadyOpenInMemory |
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from .util import get_default_language, read_QIcon, ColorScheme, custom_message_box |
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from .main_window import ElectrumWindow |
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from .network_dialog import NetworkDialog |
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from .stylesheet_patcher import patch_qt_stylesheet |
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from .lightning_dialog import LightningDialog |
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from .watchtower_dialog import WatchtowerDialog |
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if TYPE_CHECKING: |
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from electrum.daemon import Daemon |
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from electrum.simple_config import SimpleConfig |
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from electrum.plugin import Plugins |
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class OpenFileEventFilter(QObject): |
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def __init__(self, windows): |
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self.windows = windows |
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super(OpenFileEventFilter, self).__init__() |
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def eventFilter(self, obj, event): |
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if event.type() == QtCore.QEvent.FileOpen: |
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if len(self.windows) >= 1: |
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self.windows[0].pay_to_URI(event.url().toEncoded()) |
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return True |
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return False |
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class QElectrumApplication(QApplication): |
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new_window_signal = pyqtSignal(str, object) |
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class QNetworkUpdatedSignalObject(QObject): |
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network_updated_signal = pyqtSignal(str, object) |
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class ElectrumGui(Logger): |
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@profiler |
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def __init__(self, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'): |
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set_language(config.get('language', get_default_language())) |
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Logger.__init__(self) |
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# Uncomment this call to verify objects are being properly |
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# GC-ed when windows are closed |
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#network.add_jobs([DebugMem([Abstract_Wallet, SPV, Synchronizer, |
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# ElectrumWindow], interval=5)]) |
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QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_X11InitThreads) |
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if hasattr(QtCore.Qt, "AA_ShareOpenGLContexts"): |
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QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_ShareOpenGLContexts) |
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if hasattr(QGuiApplication, 'setDesktopFileName'): |
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QGuiApplication.setDesktopFileName('electrum.desktop') |
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self.gui_thread = threading.current_thread() |
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self.config = config |
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self.daemon = daemon |
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self.plugins = plugins |
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self.windows = [] |
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self.efilter = OpenFileEventFilter(self.windows) |
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self.app = QElectrumApplication(sys.argv) |
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self.app.installEventFilter(self.efilter) |
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self.app.setWindowIcon(read_QIcon("electrum.png")) |
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# timer |
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self.timer = QTimer(self.app) |
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self.timer.setSingleShot(False) |
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self.timer.setInterval(500) # msec |
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self.network_dialog = None |
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self.lightning_dialog = None |
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self.watchtower_dialog = None |
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self.network_updated_signal_obj = QNetworkUpdatedSignalObject() |
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self._num_wizards_in_progress = 0 |
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self._num_wizards_lock = threading.Lock() |
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# init tray |
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self.dark_icon = self.config.get("dark_icon", False) |
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self.tray = QSystemTrayIcon(self.tray_icon(), None) |
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self.tray.setToolTip('Electrum') |
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self.tray.activated.connect(self.tray_activated) |
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self.build_tray_menu() |
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self.tray.show() |
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self.app.new_window_signal.connect(self.start_new_window) |
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self.set_dark_theme_if_needed() |
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run_hook('init_qt', self) |
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def set_dark_theme_if_needed(self): |
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use_dark_theme = self.config.get('qt_gui_color_theme', 'default') == 'dark' |
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if use_dark_theme: |
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try: |
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import qdarkstyle |
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self.app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5()) |
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except BaseException as e: |
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use_dark_theme = False |
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self.logger.warning(f'Error setting dark theme: {repr(e)}') |
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# Apply any necessary stylesheet patches |
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patch_qt_stylesheet(use_dark_theme=use_dark_theme) |
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# Even if we ourselves don't set the dark theme, |
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# the OS/window manager/etc might set *a dark theme*. |
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# Hence, try to choose colors accordingly: |
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ColorScheme.update_from_widget(QWidget(), force_dark=use_dark_theme) |
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def build_tray_menu(self): |
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# Avoid immediate GC of old menu when window closed via its action |
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if self.tray.contextMenu() is None: |
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m = QMenu() |
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self.tray.setContextMenu(m) |
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else: |
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m = self.tray.contextMenu() |
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m.clear() |
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network = self.daemon.network |
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m.addAction(_("Network"), self.show_network_dialog) |
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if network and network.lngossip: |
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m.addAction(_("Lightning Network"), self.show_lightning_dialog) |
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if network and network.local_watchtower: |
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m.addAction(_("Local Watchtower"), self.show_watchtower_dialog) |
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for window in self.windows: |
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name = window.wallet.basename() |
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submenu = m.addMenu(name) |
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submenu.addAction(_("Show/Hide"), window.show_or_hide) |
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submenu.addAction(_("Close"), window.close) |
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m.addAction(_("Dark/Light"), self.toggle_tray_icon) |
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m.addSeparator() |
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m.addAction(_("Exit Electrum"), self.close) |
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def tray_icon(self): |
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if self.dark_icon: |
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return read_QIcon('electrum_dark_icon.png') |
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else: |
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return read_QIcon('electrum_light_icon.png') |
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def toggle_tray_icon(self): |
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self.dark_icon = not self.dark_icon |
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self.config.set_key("dark_icon", self.dark_icon, True) |
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self.tray.setIcon(self.tray_icon()) |
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def tray_activated(self, reason): |
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if reason == QSystemTrayIcon.DoubleClick: |
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if all([w.is_hidden() for w in self.windows]): |
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for w in self.windows: |
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w.bring_to_top() |
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else: |
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for w in self.windows: |
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w.hide() |
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def close(self): |
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for window in self.windows: |
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window.close() |
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if self.network_dialog: |
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self.network_dialog.close() |
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if self.lightning_dialog: |
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self.lightning_dialog.close() |
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if self.watchtower_dialog: |
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self.watchtower_dialog.close() |
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def new_window(self, path, uri=None): |
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# Use a signal as can be called from daemon thread |
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self.app.new_window_signal.emit(path, uri) |
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def show_lightning_dialog(self): |
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if not self.daemon.network.is_lightning_running(): |
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return |
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if not self.lightning_dialog: |
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self.lightning_dialog = LightningDialog(self) |
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self.lightning_dialog.bring_to_top() |
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def show_watchtower_dialog(self): |
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if not self.watchtower_dialog: |
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self.watchtower_dialog = WatchtowerDialog(self) |
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self.watchtower_dialog.bring_to_top() |
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def show_network_dialog(self): |
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if self.network_dialog: |
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self.network_dialog.on_update() |
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self.network_dialog.show() |
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self.network_dialog.raise_() |
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return |
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self.network_dialog = NetworkDialog(self.daemon.network, self.config, |
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self.network_updated_signal_obj) |
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self.network_dialog.show() |
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def _create_window_for_wallet(self, wallet): |
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w = ElectrumWindow(self, wallet) |
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self.windows.append(w) |
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self.build_tray_menu() |
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# FIXME: Remove in favour of the load_wallet hook |
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run_hook('on_new_window', w) |
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w.warn_if_testnet() |
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w.warn_if_watching_only() |
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w.warn_if_lightning_backup() |
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return w |
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def count_wizards_in_progress(func): |
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def wrapper(self: 'ElectrumGui', *args, **kwargs): |
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with self._num_wizards_lock: |
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self._num_wizards_in_progress += 1 |
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try: |
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return func(self, *args, **kwargs) |
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finally: |
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with self._num_wizards_lock: |
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self._num_wizards_in_progress -= 1 |
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return wrapper |
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@count_wizards_in_progress |
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def start_new_window(self, path, uri, *, app_is_starting=False): |
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'''Raises the window for the wallet if it is open. Otherwise |
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opens the wallet and creates a new window for it''' |
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wallet = None |
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try: |
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wallet = self.daemon.load_wallet(path, None) |
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except BaseException as e: |
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self.logger.exception('') |
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custom_message_box(icon=QMessageBox.Warning, |
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parent=None, |
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title=_('Error'), |
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text=_('Cannot load wallet') + ' (1):\n' + repr(e)) |
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# if app is starting, still let wizard to appear |
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if not app_is_starting: |
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return |
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if not wallet: |
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try: |
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wallet = self._start_wizard_to_select_or_create_wallet(path) |
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except (WalletFileException, BitcoinException) as e: |
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self.logger.exception('') |
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custom_message_box(icon=QMessageBox.Warning, |
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parent=None, |
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title=_('Error'), |
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text=_('Cannot load wallet') + ' (2):\n' + repr(e)) |
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if not wallet: |
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return |
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# create or raise window |
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try: |
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for window in self.windows: |
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if window.wallet.storage.path == wallet.storage.path: |
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break |
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else: |
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window = self._create_window_for_wallet(wallet) |
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except BaseException as e: |
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self.logger.exception('') |
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custom_message_box(icon=QMessageBox.Warning, |
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parent=None, |
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title=_('Error'), |
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text=_('Cannot create window for wallet') + ':\n' + repr(e)) |
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if app_is_starting: |
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wallet_dir = os.path.dirname(path) |
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path = os.path.join(wallet_dir, get_new_wallet_name(wallet_dir)) |
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self.start_new_window(path, uri) |
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return |
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if uri: |
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window.pay_to_URI(uri) |
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window.bring_to_top() |
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window.setWindowState(window.windowState() & ~QtCore.Qt.WindowMinimized | QtCore.Qt.WindowActive) |
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window.activateWindow() |
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return window |
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def _start_wizard_to_select_or_create_wallet(self, path) -> Optional[Abstract_Wallet]: |
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wizard = InstallWizard(self.config, self.app, self.plugins) |
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try: |
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path, storage = wizard.select_storage(path, self.daemon.get_wallet) |
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# storage is None if file does not exist |
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if storage is None: |
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wizard.path = path # needed by trustedcoin plugin |
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wizard.run('new') |
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storage, db = wizard.create_storage(path) |
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else: |
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db = WalletDB(storage.read(), manual_upgrades=False) |
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wizard.run_upgrades(storage, db) |
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except (UserCancelled, GoBack): |
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return |
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except WalletAlreadyOpenInMemory as e: |
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return e.wallet |
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finally: |
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wizard.terminate() |
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# return if wallet creation is not complete |
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if storage is None or db.get_action(): |
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return |
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wallet = Wallet(db, storage, config=self.config) |
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wallet.start_network(self.daemon.network) |
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self.daemon.add_wallet(wallet) |
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return wallet |
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def close_window(self, window: ElectrumWindow): |
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if window in self.windows: |
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self.windows.remove(window) |
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self.build_tray_menu() |
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# save wallet path of last open window |
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if not self.windows: |
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self.config.save_last_wallet(window.wallet) |
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run_hook('on_close_window', window) |
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self.daemon.stop_wallet(window.wallet.storage.path) |
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def init_network(self): |
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# Show network dialog if config does not exist |
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if self.daemon.network: |
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if self.config.get('auto_connect') is None: |
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wizard = InstallWizard(self.config, self.app, self.plugins) |
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wizard.init_network(self.daemon.network) |
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wizard.terminate() |
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def main(self): |
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try: |
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self.init_network() |
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except UserCancelled: |
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return |
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except GoBack: |
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return |
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except BaseException as e: |
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self.logger.exception('') |
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return |
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self.timer.start() |
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path = self.config.get_wallet_path(use_gui_last_wallet=True) |
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if not self.start_new_window(path, self.config.get('url'), app_is_starting=True): |
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return |
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signal.signal(signal.SIGINT, lambda *args: self.app.quit()) |
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def quit_after_last_window(): |
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# keep daemon running after close |
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if self.config.get('daemon'): |
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return |
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# check if a wizard is in progress |
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with self._num_wizards_lock: |
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if self._num_wizards_in_progress > 0 or len(self.windows) > 0: |
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return |
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if self.config.get('persist_daemon'): |
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return |
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self.app.quit() |
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self.app.setQuitOnLastWindowClosed(False) # so _we_ can decide whether to quit |
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self.app.lastWindowClosed.connect(quit_after_last_window) |
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def clean_up(): |
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# Shut down the timer cleanly |
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self.timer.stop() |
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# clipboard persistence. see http://www.mail-archive.com/pyqt@riverbankcomputing.com/msg17328.html |
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event = QtCore.QEvent(QtCore.QEvent.Clipboard) |
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self.app.sendEvent(self.app.clipboard(), event) |
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self.tray.hide() |
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self.app.aboutToQuit.connect(clean_up) |
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# main loop |
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self.app.exec_() |
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# on some platforms the exec_ call may not return, so use clean_up() |
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def stop(self): |
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self.logger.info('closing GUI') |
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self.app.quit()
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