/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
#include <qservicemanager.h>
#include <qservicefilter.h>
#include <qserviceinterfacedescriptor.h>
#include <QGraphicsWidget>
#include "hshostedwidgetfactory.h"
QTM_USE_NAMESPACE
/*!
\class HsWidgetFactory
\ingroup group_hsdomainmodel
\brief Each widget is controlled by the home screen framework through a widget host.
*/
struct HsHostedWidgetFactoryImpl{
QServiceManager mServiceManager;
QServiceFilter mFilter;
};
HsHostedWidgetFactory *HsHostedWidgetFactory::mInstance = 0;
HsHostedWidgetFactory *HsHostedWidgetFactory::instance()
{
if (!mInstance) {
mInstance = new HsHostedWidgetFactory;
}
return mInstance;
}
HsHostedWidgetFactory *HsHostedWidgetFactory::takeInstance()
{
HsHostedWidgetFactory *instance = mInstance;
mInstance = 0;
return instance;
}
HsHostedWidgetFactory *HsHostedWidgetFactory::setInstance
(HsHostedWidgetFactory *instance)
{
HsHostedWidgetFactory *old = mInstance;
if (mInstance != instance) {
mInstance = instance;
}
return old;
}
QObject *HsHostedWidgetFactory::createWidget(const QString &uri)
{
mImpl->mFilter.setServiceName(uri);
QList<QServiceInterfaceDescriptor> interfaces =
mImpl->mServiceManager.findInterfaces(mImpl->mFilter);
if (interfaces.isEmpty()) {
return 0;
}
// In theory we support QGraphicsWidget derived widgets
QObject *widgetObject = mImpl->mServiceManager.loadInterface(interfaces.first());
if (!qobject_cast<QGraphicsWidget *>(widgetObject)) {
delete widgetObject;
widgetObject = 0;
}
return widgetObject;
}
/*!
Constructs a new widget host with given \a databaseId and
\a parent item.
*/
HsHostedWidgetFactory::HsHostedWidgetFactory(QObject *parent)
: QObject(parent),
mImpl(new HsHostedWidgetFactoryImpl)
{
mImpl->mFilter.setInterface("com.nokia.symbian.IHomeScreenWidget");
}
/*!
Destructor.
*/
HsHostedWidgetFactory::~HsHostedWidgetFactory()
{
delete mImpl;
}