aboutsummaryrefslogtreecommitdiffstats
path: root/examples/dbus/listnames/listnames.py
blob: 7f91d384063a691d2db75cf265746666581c16e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
#############################################################################
##
## Copyright (C) 2021 The Qt Company Ltd.
## Contact: http://www.qt.io/licensing/
##
## This file is part of the Qt for Python examples of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
##   * Redistributions of source code must retain the above copyright
##     notice, this list of conditions and the following disclaimer.
##   * Redistributions in binary form must reproduce the above copyright
##     notice, this list of conditions and the following disclaimer in
##     the documentation and/or other materials provided with the
##     distribution.
##   * Neither the name of The Qt Company Ltd nor the names of its
##     contributors may be used to endorse or promote products derived
##     from this software without specific prior written permission.
##
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
##
## $QT_END_LICENSE$
##
#############################################################################

"""PySide6 port of the QtDBus listnames example from Qt v6.x"""

import sys
from PySide6.QtCore import QCoreApplication
from PySide6.QtDBus import (QDBusConnection, QDBusConnectionInterface,
                            QDBusInterface, QDBusReply)


def method1():
    print("Method 1:")

    session_bus = QDBusConnection.sessionBus()
    reply = session_bus.interface().registeredServiceNames()
    if not reply.isValid():
        print("Error:", reply.error().message())
        sys.exit(1)
    values = reply.value()
    for name in values:
        print(name)


def method2():
    print("Method 2:")

    session_bus = QDBusConnection.sessionBus()
    dbus_iface = QDBusInterface("org.freedesktop.DBus", "/org/freedesktop/DBus",
                                "org.freedesktop.DBus", session_bus)
    message = dbus_iface.call("ListNames")
    reply = QDBusReply(message)
    print(reply.value())


def method3():
    print("Method 3:")
    session_bus = QDBusConnection.sessionBus()
    print(session_bus.interface().registeredServiceNames().value())


if __name__ == "__main__":
    app = QCoreApplication()

    if not QDBusConnection.sessionBus().isConnected():
        print("Cannot connect to the D-Bus session bus.\n"
              "To start it, run:\n"
              "\teval `dbus-launch --auto-syntax`\n",
              file=sys.stderr)
        sys.exit(1)

    method1()
    method2()
    method3()