gui: add BaseElectrumGui base class for guis

electrum/daemon.py

@@ -441,7 +441,7 @@ class PayServer(Logger):
 class Daemon(Logger):
 
     network: Optional[Network]
-    gui_object: Optional[Union['gui.qt.ElectrumGui', 'gui.kivy.ElectrumGui']]
+    gui_object: Optional['gui.BaseElectrumGui']
 
     @profiler
     def __init__(self, config: SimpleConfig, fd=None, *, listen_jsonrpc=True):
@@ -614,7 +614,7 @@ class Daemon(Logger):
         self.logger.info(f'launching GUI: {gui_name}')
         try:
             gui = __import__('electrum.gui.' + gui_name, fromlist=['electrum'])
-            self.gui_object = gui.ElectrumGui(config, self, plugins)
+            self.gui_object = gui.ElectrumGui(config=config, daemon=self, plugins=plugins)
             if not self._stop_entered:
                 self.gui_object.main()
             else:

electrum/gui/__init__.py

@@ -9,3 +9,22 @@ from typing import TYPE_CHECKING
 if TYPE_CHECKING:
     from . import qt
     from . import kivy
+    from electrum.simple_config import SimpleConfig
+    from electrum.daemon import Daemon
+    from electrum.plugin import Plugins
+
+
+class BaseElectrumGui:
+    def __init__(self, *, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
+        self.config = config
+        self.daemon = daemon
+        self.plugins = plugins
+
+    def main(self) -> None:
+        raise NotImplementedError()
+
+    def stop(self) -> None:
+        """Stops the GUI.
+        This method must be thread-safe.
+        """
+        pass

electrum/gui/kivy/__init__.py

@@ -44,6 +44,7 @@ except ImportError:
 kivy.require('1.8.0')
 
 from electrum.logging import Logger
+from electrum.gui import BaseElectrumGui
 
 if TYPE_CHECKING:
     from electrum.simple_config import SimpleConfig
@@ -51,25 +52,20 @@ if TYPE_CHECKING:
     from electrum.plugin import Plugins
 
 
+class ElectrumGui(BaseElectrumGui, Logger):
 
-
-class ElectrumGui(Logger):
-
-    def __init__(self, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
+    def __init__(self, *, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
+        BaseElectrumGui.__init__(self, config=config, daemon=daemon, plugins=plugins)
         Logger.__init__(self)
         self.logger.debug('ElectrumGUI: initialising')
-        self.daemon = daemon
         self.network = daemon.network
-        self.config = config
-        self.plugins = plugins
 
     def main(self):
         from .main_window import ElectrumWindow
-        w = ElectrumWindow(config=self.config,
-                           network=self.network,
-                           plugins = self.plugins,
-                           gui_object=self)
+        w = ElectrumWindow(
+            config=self.config,
+            network=self.network,
+            plugins=self.plugins,
+            gui_object=self,
+        )
         w.run()
-
-    def stop(self):
-        pass

electrum/gui/qt/__init__.py

@@ -50,6 +50,7 @@ from electrum.util import (UserCancelled, profiler, send_exception_to_crash_repo
 from electrum.wallet import Wallet, Abstract_Wallet
 from electrum.wallet_db import WalletDB
 from electrum.logging import Logger
+from electrum.gui import BaseElectrumGui
 
 from .installwizard import InstallWizard, WalletAlreadyOpenInMemory
 from .util import get_default_language, read_QIcon, ColorScheme, custom_message_box, MessageBoxMixin
@@ -88,15 +89,16 @@ class QNetworkUpdatedSignalObject(QObject):
     network_updated_signal = pyqtSignal(str, object)
 
 
-class ElectrumGui(Logger):
+class ElectrumGui(BaseElectrumGui, Logger):
 
     network_dialog: Optional['NetworkDialog']
     lightning_dialog: Optional['LightningDialog']
     watchtower_dialog: Optional['WatchtowerDialog']
 
     @profiler
-    def __init__(self, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
+    def __init__(self, *, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
         set_language(config.get('language', get_default_language()))
+        BaseElectrumGui.__init__(self, config=config, daemon=daemon, plugins=plugins)
         Logger.__init__(self)
         self.logger.info(f"Qt GUI starting up... Qt={QtCore.QT_VERSION_STR}, PyQt={QtCore.PYQT_VERSION_STR}")
         # Uncomment this call to verify objects are being properly
@@ -109,9 +111,6 @@ class ElectrumGui(Logger):
         if hasattr(QGuiApplication, 'setDesktopFileName'):
             QGuiApplication.setDesktopFileName('electrum.desktop')
         self.gui_thread = threading.current_thread()
-        self.config = config
-        self.daemon = daemon
-        self.plugins = plugins
         self.windows = []  # type: List[ElectrumWindow]
         self.efilter = OpenFileEventFilter(self.windows)
         self.app = QElectrumApplication(sys.argv)
@@ -430,8 +429,5 @@ class ElectrumGui(Logger):
         # on some platforms the exec_ call may not return, so use _cleanup_before_exit
 
     def stop(self):
-        """Stops the GUI.
-        This method is thread-safe.
-        """
         self.logger.info('closing GUI')
         self.app.quit_signal.emit()

electrum/gui/stdio.py

@@ -3,6 +3,7 @@ import getpass
 import datetime
 import logging
 
+from electrum.gui import BaseElectrumGui
 from electrum import util
 from electrum import WalletStorage, Wallet
 from electrum.wallet_db import WalletDB
@@ -17,10 +18,10 @@ _ = lambda x:x  # i18n
 # written by rofl0r, with some bits stolen from the text gui (ncurses)
 
 
-class ElectrumGui:
+class ElectrumGui(BaseElectrumGui):
 
-    def __init__(self, config, daemon, plugins):
-        self.config = config
+    def __init__(self, *, config, daemon, plugins):
+        BaseElectrumGui.__init__(self, config=config, daemon=daemon, plugins=plugins)
         self.network = daemon.network
         storage = WalletStorage(config.get_wallet_path())
         if not storage.file_exists:

electrum/gui/text.py

@@ -9,6 +9,7 @@ import logging
 from typing import TYPE_CHECKING
 
 import electrum
+from electrum.gui import BaseElectrumGui
 from electrum import util
 from electrum.util import format_satoshis
 from electrum.bitcoin import is_address, COIN
@@ -28,11 +29,10 @@ if TYPE_CHECKING:
 _ = lambda x:x  # i18n
 
 
-class ElectrumGui:
+class ElectrumGui(BaseElectrumGui):
 
-    def __init__(self, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
-
-        self.config = config
+    def __init__(self, *, config: 'SimpleConfig', daemon: 'Daemon', plugins: 'Plugins'):
+        BaseElectrumGui.__init__(self, config=config, daemon=daemon, plugins=plugins)
         self.network = daemon.network
         storage = WalletStorage(config.get_wallet_path())
         if not storage.file_exists():
@@ -342,9 +342,6 @@ class ElectrumGui:
             curses.echo()
             curses.endwin()
 
-    def stop(self):
-        pass
-
     def do_clear(self):
         self.str_amount = ''
         self.str_recipient = ''