Remove uses of deprecated gtk3 apis (#560)

* fix deprecations

* port to Gtk.Application

Gtk.main() and Gtk.main_quit() are dropped in gtk4 in favor of
subclassing Gtk.Application.

This commit also moves argument handling from a separate thread to
GtkApplication.do_startup().

* fix deprecations in settings dialog

safeeyes/__main__.py

@@ -25,9 +25,7 @@ import locale
 import logging
 import signal
 import sys
-from threading import Timer
 
-import gi
 import psutil
 from safeeyes import utility
 from safeeyes.model import Config
@@ -35,9 +33,6 @@ from safeeyes.safeeyes import SafeEyes
 from safeeyes.safeeyes import SAFE_EYES_VERSION
 from safeeyes.rpc import RPCClient
 
-gi.require_version('Gtk', '3.0')
-from gi.repository import Gtk
-
 gettext.install('safeeyes', utility.LOCALE_PATH)
 
 
@@ -68,22 +63,6 @@ def __running():
     return False
 
 
-def __evaluate_arguments(args, safe_eyes):
-    """
-    Evaluate the arguments and execute the operations.
-    """
-    if args.about:
-        utility.execute_main_thread(safe_eyes.show_about)
-    elif args.disable:
-        utility.execute_main_thread(safe_eyes.disable_safeeyes)
-    elif args.enable:
-        utility.execute_main_thread(safe_eyes.enable_safeeyes)
-    elif args.settings:
-        utility.execute_main_thread(safe_eyes.show_settings)
-    elif args.take_break:
-        utility.execute_main_thread(safe_eyes.take_break)
-
-
 def main():
     """
     Start the Safe Eyes.
@@ -147,10 +126,8 @@ def main():
             sys.exit(0)
         elif not args.quit:
             logging.info("Starting Safe Eyes")
-            safe_eyes = SafeEyes(system_locale, config)
+            safe_eyes = SafeEyes(system_locale, config, args)
             safe_eyes.start()
-            Timer(1.0, lambda: __evaluate_arguments(args, safe_eyes)).start()
-            Gtk.main()
 
 
 if __name__ == '__main__':

safeeyes/safeeyes.py

@@ -38,17 +38,21 @@ from safeeyes.core import SafeEyesCore
 from safeeyes.ui.settings_dialog import SettingsDialog
 
 gi.require_version('Gtk', '3.0')
-from gi.repository import Gtk
+from gi.repository import Gtk, Gio
 
 SAFE_EYES_VERSION = "2.1.9"
 
 
-class SafeEyes:
+class SafeEyes(Gtk.Application):
     """
     This class represents a runnable Safe Eyes instance.
     """
 
-    def __init__(self, system_locale, config):
+    def __init__(self, system_locale, config, cli_args):
+        super().__init__(
+            application_id="io.github.slgobinath.SafeEyes",
+            flags=Gio.ApplicationFlags.IS_SERVICE
+        )
         self.active = False
         self.break_screen = None
         self.safe_eyes_core = None
@@ -58,6 +62,7 @@ class SafeEyes:
         self.settings_dialog_active = False
         self.rpc_server = None
         self._status = ''
+        self.cli_args = cli_args
 
         # Initialize the Safe Eyes Context
         self.context['version'] = SAFE_EYES_VERSION
@@ -98,6 +103,9 @@ class SafeEyes:
         self.context['api']['postpone'] = self.safe_eyes_core.postpone
         self.context['api']['get_break_time'] = self.safe_eyes_core.get_break_time
         self.plugins_manager.init(self.context, self.config)
+
+        self.hold()
+
         atexit.register(self.persist_session)
 
     def start(self):
@@ -114,6 +122,22 @@ class SafeEyes:
             self.safe_eyes_core.start()
             self.handle_system_suspend()
 
+        self.run()
+
+    def do_startup(self):
+        Gtk.Application.do_startup(self)
+
+        if self.cli_args.about:
+            self.show_about()
+        elif self.cli_args.disable:
+            self.disable_safeeyes()
+        elif self.cli_args.enable:
+            self.enable_safeeyes()
+        elif self.cli_args.settings:
+            self.show_settings()
+        elif self.cli_args.take_break:
+            self.take_break()
+
     def show_settings(self):
         """
         Listen to tray icon Settings action and send the signal to Settings dialog.
@@ -144,9 +168,8 @@ class SafeEyes:
         self.plugins_manager.exit()
         self.__stop_rpc_server()
         self.persist_session()
-        Gtk.main_quit()
+
-        # Exit all threads
+        super().quit()
-        os._exit(0)
 
     def handle_suspend_callback(self, sleeping):
         """

safeeyes/ui/break_screen.py

@@ -151,12 +151,14 @@ class BreakScreen:
         # Lock the keyboard
         utility.start_thread(self.__lock_keyboard)
 
-        screen = Gtk.Window().get_screen()
+        display = Gdk.Display.get_default()
-        no_of_monitors = screen.get_n_monitors()
+        screen = display.get_default_screen()
+        no_of_monitors = display.get_n_monitors()
         logging.info("Show break screens in %d display(s)", no_of_monitors)
 
-        for monitor in range(no_of_monitors):
+        for monitor_num in range(no_of_monitors):
-            monitor_gemoetry = screen.get_monitor_geometry(monitor)
+            monitor = display.get_monitor(monitor_num)
+            monitor_gemoetry = monitor.get_geometry()
             x = monitor_gemoetry.x
             y = monitor_gemoetry.y
 
@@ -165,7 +167,7 @@ class BreakScreen:
             builder.connect_signals(self)
 
             window = builder.get_object("window_main")
-            window.set_title("SafeEyes-" + str(monitor))
+            window.set_title("SafeEyes-" + str(monitor_num))
             lbl_message = builder.get_object("lbl_message")
             lbl_count = builder.get_object("lbl_count")
             lbl_widget = builder.get_object("lbl_widget")
@@ -188,7 +190,7 @@ class BreakScreen:
             # Add the buttons
             if self.enable_postpone:
                 # Add postpone button
-                btn_postpone = Gtk.Button(_('Postpone'))
+                btn_postpone = Gtk.Button.new_with_label(_('Postpone'))
                 btn_postpone.get_style_context().add_class('btn_postpone')
                 btn_postpone.connect('clicked', self.on_postpone_clicked)
                 btn_postpone.set_visible(True)
@@ -196,7 +198,7 @@ class BreakScreen:
 
             if not self.strict_break:
                 # Add the skip button
-                btn_skip = Gtk.Button(_('Skip'))
+                btn_skip = Gtk.Button.new_with_label(_('Skip'))
                 btn_skip.get_style_context().add_class('btn_skip')
                 btn_skip.connect('clicked', self.on_skip_clicked)
                 btn_skip.set_visible(True)
@@ -222,7 +224,7 @@ class BreakScreen:
             window.resize(monitor_gemoetry.width, monitor_gemoetry.height)
             window.stick()
             window.set_keep_above(True)
-            window.fullscreen()
+            window.fullscreen_on_monitor(screen, monitor_num)
             window.present()
             # In other desktop environments, move the window after present
             window.move(x, y)

safeeyes/ui/settings_dialog.py

@@ -170,14 +170,16 @@ class SettingsDialog:
                 self.__initialize(self.config)
             widget.destroy()
 
-        messagedialog = Gtk.MessageDialog(parent=self.window,
+        messagedialog = Gtk.MessageDialog()
-                                          flags=Gtk.DialogFlags.MODAL,
+        messagedialog.set_modal(True)
-                                          type=Gtk.MessageType.WARNING,
+        messagedialog.set_transient_for(self.window)
-                                          buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
+        messagedialog.set_property('message_type', Gtk.MessageType.WARNING)
-                                                   _("Reset"), Gtk.ResponseType.OK),
+        messagedialog.set_property('text', _("Are you sure you want to reset all settings to default?"))
-                                          message_format=_("Are you sure you want to reset all settings to default?"))
+        messagedialog.set_property('secondary-text', _("You can't undo this action."))
+        messagedialog.add_button('_Cancel', Gtk.ResponseType.CANCEL)
+        messagedialog.add_button(_("Reset"), Gtk.ResponseType.OK)
+
         messagedialog.connect("response", __confirmation_dialog_response)
-        messagedialog.format_secondary_text(_("You can't undo this action."))
         messagedialog.show()
 
     def __delete_break(self, break_config, is_short, on_remove):
@@ -194,14 +196,16 @@ class SettingsDialog:
                 on_remove()
             widget.destroy()
 
-        messagedialog = Gtk.MessageDialog(parent=self.window,
+        messagedialog = Gtk.MessageDialog()
-                                          flags=Gtk.DialogFlags.MODAL,
+        messagedialog.set_modal(True)
-                                          type=Gtk.MessageType.WARNING,
+        messagedialog.set_transient_for(self.window)
-                                          buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
+        messagedialog.set_property('message_type', Gtk.MessageType.WARNING)
-                                                   _("Delete"), Gtk.ResponseType.OK),
+        messagedialog.set_property('text', _("Are you sure you want to delete this break?"))
-                                          message_format=_("Are you sure you want to delete this break?"))
+        messagedialog.set_property('secondary-text', _("You can't undo this action."))
+        messagedialog.add_button('_Cancel', Gtk.ResponseType.CANCEL)
+        messagedialog.add_button(_("Delete"), Gtk.ResponseType.OK)
+
         messagedialog.connect("response", __confirmation_dialog_response)
-        messagedialog.format_secondary_text(_("You can't undo this action."))
         messagedialog.show()
 
     def __create_plugin_item(self, plugin_config):