Thread: Fundamental issues for a newbie when using Telepathy/DBus/Glib
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mr_jrt is offline mr_jrt
2011-06-17 , 23:15
Posts: 249 | Thanked: 277 times | Joined on May 2010 @ Brighton, UK
#5
Given that I don't really care about anything from telepathy other than property twiddling, I decided to try alternate ways of working with DBus, and am quite happy with Qt's QtDBus API.

I've got this now (I've used the PHP markup for the highlighting):
PHP Code:
#include <QtDBus/QtDBus>

#include <QDebug>
#include <QtCore/QCoreApplication>

#include <telepathy-glib/interfaces.h>

const char * TP_PATH_ACCOUNT_MANAGER("/org/freedesktop/Telepathy/AccountManager");

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QDBusInterface tpAccountManagerApp(
        TP_IFACE_ACCOUNT_MANAGER,
        TP_PATH_ACCOUNT_MANAGER,
        TP_IFACE_DBUS_PROPERTIES);

    if (tpAccountManagerApp.isValid())
    {
        QDBusMessage accountList = tpAccountManagerApp.call(
            "Get",
            TP_IFACE_ACCOUNT_MANAGER,
            "ValidAccounts");
        foreach (QVariant arg, accountList.arguments())
        {
            QDBusArgument argument(qvariant_cast<QDBusVariant>(arg).variant().value<QDBusArgument>());
            argument.beginArray();
            while (!argument.atEnd())
            {
                // Grab the account path
                QDBusObjectPath objectPath;
                argument >> objectPath;

                //Grab the enabled property of each account
                QDBusInterface tpAccount(
                    TP_IFACE_ACCOUNT_MANAGER,
                    objectPath.path(),
                    TP_IFACE_DBUS_PROPERTIES);
                if (tpAccount.isValid())
                {
                    QDBusReply<QVariant> isEnabledProp = tpAccount.call(
                        "Get",
                        TP_IFACE_ACCOUNT,
                        "Enabled");
                    qDebug() << (isEnabledProp.value().toBool() ? "Enabled:\t\t" : "Not enabled:\t") << objectPath.path();
                }
            }
            argument.endArray();
        }
    }

    return a.exec();
} 
...but get a weird warning that I'm going to treat as an error:
Code:
Enabled:		 "/org/freedesktop/Telepathy/Account/ring/tel/ring" 
Not enabled:	 "/org/freedesktop/Telepathy/Account/gabble/jabber/jamierocks_40gmail_2ecom0" 
Enabled:		 "/org/freedesktop/Telepathy/Account/sofiasip/sip/_373023190" 
Not enabled:	 "/org/freedesktop/Telepathy/Account/sofiasip/sip/_33888389_40sipgate_2eco_2euk0" 
Not enabled:	 "/org/freedesktop/Telepathy/Account/gabble/jabber/jamie_40jabber_2ejamie_2dthompson_2eco_2euk0" 
Not enabled:	 "/org/freedesktop/Telepathy/Account/gabble/jabber/qwerki_40chat_2efacebook_2ecom0" 
QDBusArgument: write from a read-only object
...this comes from the call to "argument.endArray();". The error goes away when I remove the call, but the documentation says it's required to match up with the call to "argument.beginArray();".

Something new to ponder, though I'll happily take any answers anyone has to offer