homescreenapp/examples/contentpublishclient/src/contentpublishclient.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 14:54:01 +0300
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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Example of home screen content publishing client
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*
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*/
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#include <qservicefilter.h>
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#include <qserviceinterfacedescriptor.h>
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#include <QMetaObject>
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#include <QMetaMethod>
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#include "contentpublishclient.h"
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/*!
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    \ingroup group_content_publish_client
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    \class ContentPublishClient
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    \brief Example implementation for home screen content publish client.
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    ContentPublishClient is derived from QObject and implements 
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    needed functions for the home screen content publish client. 
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*/
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/*!
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    Constructor.
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*/
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ContentPublishClient::ContentPublishClient(QServiceManager &manager, QObject *parent)
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    : QObject(parent),
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      mManager(&manager)
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{
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}
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/*!
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    Destructor
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*/
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ContentPublishClient::~ContentPublishClient()
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{
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}
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/*!
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    Loads service interface
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*/
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bool ContentPublishClient::load()
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{    
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    QServiceFilter filter("com.nokia.symbian.IHomeScreenClient");
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    filter.setServiceName("hshomescreenclientplugin");
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    QList<QServiceInterfaceDescriptor> interfaces = mManager->findInterfaces(filter);
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    if(interfaces.isEmpty()) {
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        QServiceManager::Error error = mManager->error();
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        return false;
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    }
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    qDebug() << interfaces.first().interfaceName()
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             << interfaces.first().serviceName()
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             <<  interfaces.first().isValid();
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    mService = mManager->loadInterface(interfaces.first());
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    return (mService);
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}
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/*!
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    Adds widget utilizing service interface and invoke call
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*/
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void ContentPublishClient::addWidget()
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{   
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    QByteArray signature = QMetaObject::normalizedSignature("addWidget(QString,QVariantHash)");
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    int methodIndex = mService->metaObject()->indexOfMethod(signature);   
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    QMetaMethod method = mService->metaObject()->method(methodIndex);
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    bool retVal(false);
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    QString widget = "hsclockwidgetplugin";
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    bool ret = method.invoke( mService,
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                              Qt::DirectConnection,
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                              Q_RETURN_ARG(bool, retVal),
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                              Q_ARG(QString,widget),
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                              Q_ARG(QVariantHash,QVariantHash()));
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    if(!ret){
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        qDebug()<< "method invoke failed!";
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    }
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    if(!retVal){
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        qDebug() << "addWidget() failed!!";
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    }
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}