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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QString>
#include <QDBusMessage>
#include <QDBusReply>
#include <QDBusInterface>
using namespace Qt::StringLiterals;
class Abstract_DBus_Interface : public QObject
{
Q_OBJECT
public:
Abstract_DBus_Interface(QObject *parent = nullptr)
: QObject(parent) {
interface = new QDBusInterface("org.example.Interface", "/Example/Methods");
}
~Abstract_DBus_Interface() { delete interface; }
void interfaceMain();
void asyncCall();
QString retrieveValue() { return QString(); }
public slots:
void callFinishedSlot();
private:
QDBusInterface *interface;
};
void Abstract_DBus_Interface::interfaceMain()
{
//! [0]
QString value = retrieveValue();
QDBusMessage reply;
QDBusReply<int> api = interface->call("GetAPIVersion"_L1);
if (api >= 14)
reply = interface->call("ProcessWorkUnicode"_L1, value);
else
reply = interface->call("ProcessWork"_L1, "UTF-8"_L1, value.toUtf8());
//! [0]
}
void Abstract_DBus_Interface::asyncCall()
{
//! [1]
QDBusPendingCall pcall = interface->asyncCall("GetAPIVersion"_L1);
auto watcher = new QDBusPendingCallWatcher(pcall, this);
QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this,
[&](QDBusPendingCallWatcher *w) {
QString value = retrieveValue();
QDBusPendingReply<int> reply(*w);
QDBusPendingCall pcall;
if (reply.argumentAt<0>() >= 14)
pcall = interface->asyncCall("ProcessWorkUnicode"_L1, value);
else
pcall = interface->asyncCall("ProcessWork"_L1, "UTF-8"_L1, value.toUtf8());
w = new QDBusPendingCallWatcher(pcall);
QObject::connect(w, &QDBusPendingCallWatcher::finished, this,
&Abstract_DBus_Interface::callFinishedSlot);
});
//! [1]
}
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