homescreenapp/runtimeplugins/hsdefaultruntimeplugin/src/hsdefaultruntime.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 14:54:01 +0300
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permissions -rw-r--r--
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/*
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* Copyright (c) 2009 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:  Default implementation of the home screen runtime.
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*
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*/
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#include <QState>
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#include <QFinalState>
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#include <QSignalTransition>
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#include <QKeyEventTransition>
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#include <qvaluespacepublisher.h>
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#include <qservicemanager.h>
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#include <qservicefilter.h>
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#include <qserviceinterfacedescriptor.h>
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#include <HbInstance>
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#include "homescreendomainpskeys.h"
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#include "hsdefaultruntime.h"
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#include "hsdatabase.h"
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#include "hscontentservice.h"
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#include "hsshortcutservice.h"
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#include "hsmenueventtransition.h"
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#include "hswidgetpositioningonorientationchange.h"
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#include "hswidgetpositioningonwidgetadd.h"
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#include "hstest_global.h"
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QTM_USE_NAMESPACE
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#ifdef S60APP_KEY
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int applicationKey = Qt::Key_Launch0;
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#else
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int applicationKey = Qt::Key_Any;
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#endif
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/*!
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    \class HsDefaultRuntime
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    \ingroup group_hsdefaultruntimeplugin
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    \brief Default implementation of the home screen runtime.
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    Creates an execution context (EC) and populates it with
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    runtime services. States are loaded from state plugins.
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    Each state is given an access to the EC. States
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    are added to a state machine. Finally, the state machine
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    is started.
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*/
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/*!
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    Constructs runtime with \a parent as the parent object.
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*/
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HsDefaultRuntime::HsDefaultRuntime(QObject *parent)
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    : QStateMachine(parent),
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      mContentService(0),	  
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	  mHomeScreenActive(false),
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	  mIdleStateActive(false),
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	  mPublisher(NULL)
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{
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    HSTEST_FUNC_ENTRY("HS::HsDefaultRuntime::HsDefaultRuntime");
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    HsDatabase *db = new HsDatabase;
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    db->setConnectionName("homescreen.dbc");
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#ifdef Q_OS_SYMBIAN
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    db->setDatabaseName("c:/private/20022f35/homescreen.db");
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#else
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    db->setDatabaseName("homescreen.db");
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#endif    
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    db->open();
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    HsDatabase::setInstance(db);
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    HsWidgetPositioningOnOrientationChange::setInstance(
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        new HsAdvancedWidgetPositioningOnOrientationChange);
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    HsWidgetPositioningOnWidgetAdd::setInstance(
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        new HsAnchorPointInBottomRight);
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    createStatePublisher();
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    createContentServiceParts();
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    createStates();
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    assignServices();
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	QCoreApplication::instance()->installEventFilter(this);
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    HSTEST_FUNC_EXIT("HS::HsDefaultRuntime::HsDefaultRuntime");
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}
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/*!
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    Destructor.
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*/
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HsDefaultRuntime::~HsDefaultRuntime()
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{
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    HsWidgetPositioningOnOrientationChange::setInstance(0);
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	delete mPublisher;
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}
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/*!
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    \fn void HsDefaultRuntime::stopStateMachine()
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    Emission of this signal initiates a transition to the final state.
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*/
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/*!
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    \copydoc QObject::eventFilter(QObject *watched, QEvent *event)
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*/
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bool HsDefaultRuntime::eventFilter(QObject *watched, QEvent *event)
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{
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    Q_UNUSED(watched);
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   116
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    switch (event->type()) {
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		case QEvent::ApplicationActivate:
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		{			
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			qDebug() << "HsDefaultRuntime::eventFilter: QEvent::ApplicationActivate";
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			mHomeScreenActive = true;
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			updatePSKeys();
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		}
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		break;
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		case QEvent::ApplicationDeactivate:
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		{		
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			qDebug() << "HsDefaultRuntime::eventFilter: QEvent::ApplicationDeactivate";
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			mHomeScreenActive = false;
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            updatePSKeys();			
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		}
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		break;
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	}
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	return QStateMachine::eventFilter(watched, event);
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}
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   136
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/*!
36
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    Creates Home screen state publisher.
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   139
*/
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void HsDefaultRuntime::createStatePublisher()
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{
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    mPublisher = new QValueSpacePublisher(QValueSpace::PermanentLayer, HsStatePSKeyPath);
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   143
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    if (!mPublisher->isConnected()){
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    	// No permanent layer available
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    	mPublisher = new QValueSpacePublisher(HsStatePSKeyPath);
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    }
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   148
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    mPublisher->setValue(HsStatePSKeySubPath, EHomeScreenInactive);
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}
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   151
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/*!
35
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    Creates content service parts.
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*/
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void HsDefaultRuntime::createContentServiceParts()
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{
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    HSTEST_FUNC_ENTRY("HS::HsDefaultRuntime::createContentServiceParts");
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   158
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    mContentService = new HsContentService(this);
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   160
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    HSTEST_FUNC_EXIT("HS::HsDefaultRuntime::createContentServiceParts");
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}
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   163
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/*!
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    Creates states.
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*/
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void HsDefaultRuntime::createStates()
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{
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    HSTEST_FUNC_ENTRY("HS::HsDefaultRuntime::createStates");
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   170
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    QFinalState *finalState = new QFinalState();
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    addState(finalState);
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   173
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    QState *guiRootState = new QState();
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    addState(guiRootState);
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   176
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    guiRootState->addTransition(this, SIGNAL(event_exit()), finalState);
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   178
36
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    QServiceManager manager;
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35
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    QServiceFilter filter;
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   182
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    filter.setInterface("com.nokia.homescreen.state.HsLoadSceneState");
36
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#ifdef HSDEFAULTRUNTIMEPLUGIN_UNITTEST
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    filter.setServiceName("mockstateplugins");
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#endif    
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    QList<QServiceInterfaceDescriptor> interfaces = manager.findInterfaces(filter);
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   188
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    QObject *loadSceneStateObj = manager.loadInterface(interfaces.first());
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    QState *loadSceneState = qobject_cast<QState *>(loadSceneStateObj);
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    loadSceneState->setParent(guiRootState);
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    loadSceneState->setObjectName(interfaces.first().interfaceName());
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   193
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    filter.setInterface("com.nokia.homescreen.state.HsIdleState");
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    interfaces = manager.findInterfaces(filter);
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    QObject *idleStateObj = manager.loadInterface(interfaces.first());
35
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    QState *idleState = qobject_cast<QState *>(idleStateObj);
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    idleState->setParent(guiRootState);
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    idleState->setObjectName(interfaces.first().interfaceName());
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	connect(idleState, SIGNAL(entered()), SLOT(onIdleStateEntered()));
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	connect(idleState, SIGNAL(exited()), SLOT(onIdleStateExited()));
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   202
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    loadSceneState->addTransition(
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            loadSceneState, SIGNAL(event_idle()), idleState);
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   205
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    //menu state
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    QState *menuParallelState = new QState(
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            QState::ParallelStates, guiRootState);
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    QState *menuRootState = new QState(menuParallelState);
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   210
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    filter.setInterface("com.nokia.homescreen.state.HsAppLibraryState");
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    interfaces = manager.findInterfaces(filter);
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    QObject *appLibraryStateObj = manager.loadInterface(interfaces.first());
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    QState *appLibraryState = qobject_cast<QState *>(appLibraryStateObj);
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    appLibraryState->setParent(menuRootState);
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    appLibraryState->setObjectName(interfaces.first().interfaceName());
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    menuRootState->setInitialState(appLibraryState);
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   218
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    filter.setInterface("com.nokia.homescreen.state.HsMenuWorkerState");
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    interfaces = manager.findInterfaces(filter);
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    QObject *menuWorkerStateObj = manager.loadInterface(interfaces.first());
35
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    QState *menuWorkerState = qobject_cast<QState *>(menuWorkerStateObj);
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    menuWorkerState->setParent(menuParallelState);
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    menuWorkerState->setObjectName(interfaces.first().interfaceName());
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   225
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    // root state transitions
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    idleState->addTransition(idleState, SIGNAL(event_applicationLibrary()), menuRootState);
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    appLibraryState->addTransition(
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            appLibraryState, SIGNAL(toHomescreenState()), idleState);
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    // opening shortcut to Application Library
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    HsMenuEventTransition *idleToAppLibTransition =
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        new HsMenuEventTransition(HsMenuEvent::OpenApplicationLibrary,
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                                  idleState, appLibraryState);
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    idleState->addTransition(idleToAppLibTransition);
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   235
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    HsMenuEventTransition *appLibToIdleTransition =
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        new HsMenuEventTransition(
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            HsMenuEvent::OpenHomeScreen, appLibraryState, idleState);
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    appLibraryState->addTransition(appLibToIdleTransition);
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36
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    HbMainWindow *window = hbInstance->allMainWindows().first();
35
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    // key driven transition from idle to menu
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    QKeyEventTransition *idleToMenuRootTransition =
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        new QKeyEventTransition(
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                window, QEvent::KeyRelease, applicationKey, idleState);
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    idleToMenuRootTransition->setTargetState(menuRootState);
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    idleState->addTransition(idleToMenuRootTransition);
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    // key driven transition from menu to idle
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    QKeyEventTransition *menuToIdleTransition =
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        new QKeyEventTransition(
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                window, QEvent::KeyRelease, applicationKey, idleState);
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    menuToIdleTransition->setTargetState(idleState);
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    menuRootState->addTransition(menuToIdleTransition);
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   255
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    // transitions to child states
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    // opening shortcut to a colleciton
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    QList<QState *> collectionStates =
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        appLibraryState->
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            findChildren<QState *>
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                ("homescreen.nokia.com/state/applibrarystate/collectionstate");
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    qDebug(
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        "Found %d \"collectionstate\" children for Application Library State",
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            collectionStates.count());
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    if (collectionStates.count()) {
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        HsMenuEventTransition *idleToCollectionTransition =
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            new HsMenuEventTransition(HsMenuEvent::OpenCollection,
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                                      idleState, collectionStates[0]);
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        idleState->addTransition(idleToCollectionTransition);
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    }
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    guiRootState->setInitialState(loadSceneState);
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    setInitialState(guiRootState);
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    HSTEST_FUNC_EXIT("HS::HsDefaultRuntime::createStates");
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}
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/*!
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    Assigns services to states based on value of property HS_SERVICES_REGISTRATION_KEY.
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*/
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void HsDefaultRuntime::assignServices()
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{
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    HSTEST_FUNC_ENTRY("HS::HsDefaultRuntime::assignServices");
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    QList<QState*> children = findChildren<QState*>();
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    foreach (QState *state, children) {
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        QList<QVariant> services = state->property(HS_SERVICES_REGISTRATION_KEY).toList();
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        foreach (const QVariant &service, services) {
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            QString name = service.toString();
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            qDebug() << "Assign service:" << name << "\n to " << state->objectName();
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            if (name == CONTENT_SERVICE_KEY) {
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                state->setProperty(name.toAscii().data(), qVariantFromValue(mContentService));
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            } else if (name == SHORTCUT_SERVICE_KEY) {
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                state->setProperty(name.toAscii().data(),
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                    qVariantFromValue(HsShortcutService::instance(this)));
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            } else {
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                qWarning() << "WARNING: Service " << name << " is unknown";
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            }
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        }
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    }
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   301
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    HSTEST_FUNC_EXIT("HS::HsDefaultRuntime::assignServices");
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}
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   304
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/*!
36
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    Publishes Home screen states via Publish & Subscribe.
35
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*/
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void HsDefaultRuntime::updatePSKeys()
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{	
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	if (!mPublisher){
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		createStatePublisher();
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	}
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   313
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	if (mHomeScreenActive && mIdleStateActive){
35
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    	qDebug() << "HsDefaultRuntime::updatePSKeys: EHomeScreenIdleState";
36
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    	mPublisher->setValue(HsStatePSKeySubPath, EHomeScreenIdleState);
35
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    }
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    else{
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    	qDebug() << "HsDefaultRuntime::updatePSKeys: EHomeScreenInactive";
36
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    	mPublisher->setValue(HsStatePSKeySubPath, EHomeScreenInactive);
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    }	
35
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}
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   323
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   324
/*!
36
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    Called when state machine is in Idle state.
35
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*/
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void HsDefaultRuntime::onIdleStateEntered()
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{
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	mIdleStateActive = true;
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	updatePSKeys();
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}
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   332
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   333
/*!
36
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    Called when state machine leaves the Idle state.
35
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*/
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   336
void HsDefaultRuntime::onIdleStateExited()
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{
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	mIdleStateActive = false;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   339
	updatePSKeys();
f9ce957a272c Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   340
}