kwin/scripting/dbuscall.h
2020-08-07 19:57:56 +00:00

136 lines
3.3 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2013 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KWIN_DBUSCALL_H
#define KWIN_DBUSCALL_H
#include <QObject>
#include <QString>
namespace KWin
{
/**
* @brief Qml export for providing a wrapper for sending a message over the DBus
* session bus.
*
* Allows to setup the connection arguments just like in QDBusMessage and supports
* adding arguments to the call. To invoke the message use the slot @ref call.
*
* If the call succeeds the signal @ref finished is emitted, if the call fails
* the signal @ref failed is emitted.
*
* Note: the DBusCall always uses the session bus and performs an async call.
*
* Example on how to use in Qml:
* @code
* DBusCall {
* id: dbus
* service: "org.kde.KWin"
* path: "/KWin"
* method: "nextDesktop"
* Component.onCompleted: dbus.call()
* }
* @endcode
*
* Example with arguments:
* @code
* DBusCall {
* id: dbus
* service: "org.kde.KWin"
* path: "/KWin"
* method: "setCurrentDesktop"
* arguments: [1]
* Component.onCompleted: dbus.call()
* }
* @endcode
*
* Example with a callback:
* @code
* DBusCall {
* id: dbus
* service: "org.kde.KWin"
* path: "/KWin"
* method: "currentDesktop"
* onFinished: console.log(returnValue[0])
* }
* @endcode
*/
class DBusCall : public QObject
{
Q_OBJECT
Q_PROPERTY(QString service READ service WRITE setService NOTIFY serviceChanged)
Q_PROPERTY(QString path READ path WRITE setPath NOTIFY pathChanged)
Q_PROPERTY(QString dbusInterface READ interface WRITE setInterface NOTIFY interfaceChanged)
Q_PROPERTY(QString method READ method WRITE setMethod NOTIFY methodChanged)
Q_PROPERTY(QVariantList arguments READ arguments WRITE setArguments NOTIFY argumentsChanged)
public:
explicit DBusCall(QObject* parent = nullptr);
~DBusCall() override;
const QString &service() const;
const QString &path() const;
const QString &interface() const;
const QString &method() const;
const QVariantList &arguments() const;
public Q_SLOTS:
void call();
void setService(const QString &service);
void setPath(const QString &path);
void setInterface(const QString &interface);
void setMethod(const QString &method);
void setArguments(const QVariantList &arguments);
Q_SIGNALS:
void finished(QVariantList returnValue);
void failed();
void serviceChanged();
void pathChanged();
void interfaceChanged();
void methodChanged();
void argumentsChanged();
private:
QString m_service;
QString m_path;
QString m_interface;
QString m_method;
QVariantList m_arguments;
};
#define GENERIC_WRAPPER(type, name, upperName) \
inline type DBusCall::name() const \
{ \
return m_##name; \
}\
inline void DBusCall::set##upperName(type name) \
{\
if (m_##name == name) { \
return; \
} \
m_##name = name; \
emit name##Changed(); \
}
#define WRAPPER(name, upperName) \
GENERIC_WRAPPER(const QString&, name, upperName)
WRAPPER(interface, Interface)
WRAPPER(method, Method)
WRAPPER(path, Path)
WRAPPER(service, Service)
GENERIC_WRAPPER(const QVariantList &, arguments, Arguments)
#undef WRAPPER
#undef GENERIC_WRAPPER
} // KWin
#endif // KWIN_SCRIPTING_DBUSCALL_H