view sat_frontends/primitivus/notify.py @ 3153:2c7b42f53e9a

core (xmpp): avoid starting several clients at the same time: a check is done to avoid running startConnection several times at once, which would lead to the creation of several SatXMPPEntity instances at the same time, resulting in many issues. If startConnection is called while a previous one is not finished yet, a CancelError is now raised.
author Goffi <goffi@goffi.org>
date Mon, 03 Feb 2020 13:46:24 +0100
parents 559a625a236b
children be6d91572633
line wrap: on
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#!/usr/bin/env python3


# Primitivus: a SAT frontend
# Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import dbus


class Notify(object):
    """Used to send notification and detect if we have focus"""

    def __init__(self):

        # X11 stuff
        self.display = None
        self.X11_id = -1

        try:
            from Xlib import display as X_display

            self.display = X_display.Display()
            self.X11_id = self.getFocus()
        except:
            pass

        # Now we try to connect to Freedesktop D-Bus API
        try:
            bus = dbus.SessionBus()
            db_object = bus.get_object(
                "org.freedesktop.Notifications",
                "/org/freedesktop/Notifications",
                follow_name_owner_changes=True,
            )
            self.freedesktop_int = dbus.Interface(
                db_object, dbus_interface="org.freedesktop.Notifications"
            )
        except:
            self.freedesktop_int = None

    def getFocus(self):
        if not self.display:
            return 0
        return self.display.get_input_focus().focus.id

    def hasFocus(self):
        return (self.getFocus() == self.X11_id) if self.display else True

    def useX11(self):
        return bool(self.display)

    def sendNotification(self, summ_mess, body_mess=""):
        """Send notification to the user if possible"""
        # TODO: check options before sending notifications
        if self.freedesktop_int:
            self.sendFDNotification(summ_mess, body_mess)

    def sendFDNotification(self, summ_mess, body_mess=""):
        """Send notification with the FreeDesktop D-Bus API"""
        if self.freedesktop_int:
            app_name = "Primitivus"
            replaces_id = 0
            app_icon = ""
            summary = summ_mess
            body = body_mess
            actions = dbus.Array(signature="s")
            hints = dbus.Dictionary(signature="sv")
            expire_timeout = -1

            self.freedesktop_int.Notify(
                app_name,
                replaces_id,
                app_icon,
                summary,
                body,
                actions,
                hints,
                expire_timeout,
            )