view sat_frontends/primitivus/notify.py @ 3513:753d151da886

XEP-0277: new preview/mbPreview method: This method does more or less the same thing as sending, but without actually sending the item, and parse the generated element just after. This way, the triggers are run, and a preview of the item can be made for the resulting microblog data.
author Goffi <goffi@goffi.org>
date Thu, 29 Apr 2021 15:49:59 +0200
parents be6d91572633
children 524856bd7b19
line wrap: on
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#!/usr/bin/env python3


# Primitivus: a SAT frontend
# Copyright (C) 2009-2021 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,
            )