From kde-devel  Sun Aug 09 18:04:51 2009
From: Kevin Krammer <kevin.krammer () gmx ! at>
Date: Sun, 09 Aug 2009 18:04:51 +0000
To: kde-devel
Subject: Re: QDBusConnection::registerObject: "Invalid object path given" -
Message-Id: <200908092004.52035.kevin.krammer () gmx ! at>
X-MARC-Message: https://marc.info/?l=kde-devel&m=124984119317957
MIME-Version: 1
Content-Type: multipart/mixed; boundary="--===============1496478831=="

--===============1496478831==
Content-Type: multipart/signed;
  boundary="nextPart1835222.8IhfNMZgTk";
  protocol="application/pgp-signature";
  micalg=pgp-sha1
Content-Transfer-Encoding: 7bit

--nextPart1835222.8IhfNMZgTk
Content-Type: Text/Plain;
  charset="utf-8"
Content-Transfer-Encoding: quoted-printable

On Sunday, 2009-08-09, Jaroslav Barton wrote:
> Hi all,
>
> I has similar issue with property names exported via glib D-Bus [1],
> [2]. I think there are some unspecified details in D-Bus specification.
>
> [1]
> http://blog.djaara.net/wordpress/2009/03/31/qt-vs-d-bus-access-to-propert=
ie
>s-with-dash-in-name/
>
> [2] http://bugs.freedesktop.org/show_bug.cgi?id=3D20948

I think this is actually different.
Object paths are quite thorougly specified in the D-Bus spec, so the name u=
sed=20
in Matthew's example was just not valid.

The problem about properties is that the signature of the property interfac=
e=20
allows any kind of UTF-8 string to be used, however the Qt code to map thos=
e=20
to QObject properties need to restrict this because it, as far as I underst=
ood=20
it, wants to greate accessor methods for them and is thus restricted to=20
strings which are valid C++.
It might be possible to map D-Bus properties into this kind of QObject=20
properties that do not have direct accessors, e.g. like when doing this

RandomQObject->setProperty( "myproperty", QVariant( "foo" ) );

However, you already discovered another workaround yourself, you might even=
=20
use the introspection of the property interface to generate a property=20
QDBusInterface so you could to

org::freedesktop::DBus::Properties interface(....);
interface.Get( "your-dash-including-property" );

Cheers,
Kevin

=2D-=20
Kevin Krammer, KDE developer, xdg-utils developer
KDE user support, developer mentoring

--nextPart1835222.8IhfNMZgTk
Content-Type: application/pgp-signature; name=signature.asc 
Content-Description: This is a digitally signed message part.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iD8DBQBKfw/EnKMhG6pzZJIRAmd6AJ9+Id4sC+2PTbvjfja1CsDCBe3RegCfStB0
ADVYObMiW1If2OemyKuHiOI=
=8XHS
-----END PGP SIGNATURE-----

--nextPart1835222.8IhfNMZgTk--

--===============1496478831==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

 
>> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to unsubscribe <<

--===============1496478831==--