main_window.py 文件源码

def build_error_dialog(self, message_label, on_signal=None, callback=None):
        """
        Create a :class:`Gtk.MessageDialog` to notifiy user that an error
        occurred.

        :param message_label: text displayed to user as :class`str`
        :param on_signal: Gtk signal as :class:`str`
        :param callback: callback to connect to ``signal``
        """
        error_dialog = Gtk.MessageDialog(
            message_type=Gtk.MessageType.ERROR, message_format=message_label)
        error_dialog.set_icon_from_file(self.images.logo_favicon_path)
        error_dialog.set_title("Error")
        error_dialog.add_button(Gtk.STOCK_CLOSE, Gtk.ResponseType.CLOSE)
        error_dialog.set_modal(True)
        if on_signal and callback:
            error_dialog.connect(on_signal, callback)
        else:
            error_dialog.connect("response", self.default_error_callback)

        error_dialog.run()