DBusAdaptor QML Type

Provides a service on D-Bus More...

• List of all members, including inherited members

Properties

• bus : enum
• iface : string
• path : string
• service : string
• xml : string

Methods

• void emitSignal(string name, variant arguments)

Detailed Description

The DBusAdaptor object can be used to provide a D-Bus service on the system or session bus. A service can be called from other applications on the system as long as the service is active.

DBusAdaptor is intended to provide a means of exposing simple objects over D-Bus. Property values and method arguments are automatically converted between QML/JS and D-Bus. There is limited control over this process. For more complex use cases it is recommended to use C++ and the Qt DBus module.

Exposing an object on D-Bus

The following code demonstrates how to expose an object on the session bus. The com.example.service service name will be registered and an object at /com/example/service will be registered supporting the com.example.service interface in addition to the common interfaces org.freedesktop.DBus.Properties, org.freedesktop.DBus.Introspectable and org.freedesktop.DBus.Peer.

All properties and methods of the DBusAdaptor will be accessible via D-Bus. Only those properties and methods declared in the xml will be discoverable via D-Bus introspection.

 import QtQuick 2.0
 import Nemo.DBus 2.0

 Item {
     DBusAdaptor {
         id: dbus

         property bool needUpdate: true

         service: 'com.example.service'
         iface: 'com.example.service'
         path: '/com/example/service'

         xml: '  <interface name="com.example.service">\n' +
              '    <method name="update" />\n' +
              '    <property name="needUpdate" type="b" access="readwrite" />\n' +
              '  </interface>\n'

         function update() {
             console.log("Update called")
         }
     }
 }

Property Documentation

Method Documentation