kdecore/util/kdedmodule.cpp

   1 //! vim: ts=3 sw=3
   2 /*
   3    This file is part of the KDE libraries
   4
   5    Copyright (c) 2001 Waldo Bastian <bastian@kde.org>
   6
   7    This library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Library General Public
   9    License as published by the Free Software Foundation; either
  10    version 2 of the License, or (at your option) any later version.
  11
  12    This library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Library General Public License for more details.
  16
  17    You should have received a copy of the GNU Library General Public License
  18    along with this library; see the file COPYING.LIB.  If not, write to
  19    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20    Boston, MA 02110-1301, USA.
  21
  22 */
  23
  24 #include "kdedmodule.h"
  25
  26 #include "kdebug.h"
  27 #include <QtCore/QTimer>
  28 #include <QtDBus/QtDBus>
  29
  30
  31
  32 class KDEDModulePrivate
  33 {
  34 public:
  35   QString moduleName;
  36 };
  37
  38 KDEDModule::KDEDModule(QObject* parent)
  39     : QObject(parent), d(new KDEDModulePrivate)
  40 {
  41 }
  42
  43 KDEDModule::~KDEDModule()
  44 {
  45    emit moduleDeleted(this);
  46    delete d;
  47 }
  48
  49 void KDEDModule::setModuleName( const QString& name )
  50 {
  51    d->moduleName = name;
  52    QDBusObjectPath realPath( QString("/modules/") + d->moduleName);
  53
  54    if (realPath.path().isEmpty())
  55       {
  56       kError() << "The kded module name '" << name << "' is invalid!";
  57       return;
  58       }
  59
  60
  61    QDBusConnection::RegisterOptions regOptions;
  62
  63    if (this->metaObject()->indexOfClassInfo("D-Bus Interface")!=-1)
  64       {
  65       // 1. There are kded modules that don't have a dbus interface.
  66       // 2. qt 4.4.3 crashes when trying to emit signals on class without
  67       //    Q_CLASSINFO("D-Bus Interface", "<your interface>") but
  68       //    ExportSignal set.
  69       // We try to solve that for now with just registering Properties and
  70       // Adaptors. But we should investigate where the sense is in registering
  71       // the module at all. Just for autoload? Is there a better solution?
  72       regOptions = QDBusConnection::ExportScriptableContents | QDBusConnection::ExportAdaptors;
  73       }
  74    else
  75       {
  76       // Full functional module. Register everything.
  77       regOptions = QDBusConnection::ExportScriptableSlots
  78                      | QDBusConnection::ExportScriptableProperties
  79                      | QDBusConnection::ExportAdaptors;
  80       kDebug() << "Registration of kded module " << d->moduleName << "without dbus interface.";
  81       }
  82
  83    if (!QDBusConnection::sessionBus().registerObject(realPath.path(), this, regOptions))
  84       {
  85       // Happens for khotkeys but the module works. Need some time to investigate.
  86       kDebug() << "registerObject() returned false for " << d->moduleName;
  87       }
  88    else
  89       {
  90       kDebug() << "registerObject() successful for " << d->moduleName;
  91       emit moduleRegistered(realPath);
  92       }
  93
  94 }
  95
  96 QString KDEDModule::moduleName() const
  97 {
  98    return d->moduleName;
  99 }
 100
 101 #include "kdedmodule.moc"