view sat_frontends/primitivus/notify.py @ 3013:860c550028d6

memory (sqlite): properly wait for messages to be writen in database: the deferreds of the queries writing message to databases where not gathered and returned, so the caller was not waiting for them to continue its workflow. This was resulting in messages not always written when database was read just after the write (a case common with MUC implementation), and message was appearing empty when sent to bridge. fix 328
author Goffi <goffi@goffi.org>
date Thu, 18 Jul 2019 21:58:34 +0200
parents 003b8b4b56a7
children 9d0df638c8b4
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# Primitivus: a SAT frontend
# Copyright (C) 2009-2019 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,
            )