diff -r c18f9fa7f42e -r 640d30f4fb64 phonebookui/cntlistmodel/cntpresenceinfoprovider.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookui/cntlistmodel/cntpresenceinfoprovider.cpp	Fri Oct 15 12:24:46 2010 +0300
@@ -0,0 +1,172 @@
+/*
+* Copyright (c) 2010 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: Presence info provider plugin for CntListModel. It can provide
+*              the presence information of a contact (icon2 field).
+*
+*/
+
+#include <qtcontacts.h>
+#include "cntpresenceinfoprovider.h"
+
+#include <prcpresencebuddyinfo_qt.h>
+#include <prcpresencereader_qt.h>
+
+CntPresenceInfoProvider::CntPresenceInfoProvider() :
+    iReader(NULL),
+    mManager(NULL)
+{
+    iReader = PrcPresenceReader::createReader();
+    connect(iReader, SIGNAL(signalPresenceNotification(bool , PrcPresenceBuddyInfoQt*)), 
+                           this, SLOT(handlePresenceUpdate(bool , PrcPresenceBuddyInfoQt*)));
+    
+    mManager = new QContactManager("symbian");
+}
+
+CntPresenceInfoProvider::~CntPresenceInfoProvider()
+{
+    delete iReader;
+    delete mManager;
+}
+
+/*!
+    /return the info fields supported by this provider
+ */
+ContactInfoFields CntPresenceInfoProvider::supportedFields() const
+{
+    // this provider has only info for the icon2 field
+    return ContactInfoIcon2Field;
+}
+
+/*!
+    The contact contains all the info this provider needs, so signals with the requested info
+    fields are emitted immediately.
+
+    /param contact the contact for which info is requested
+    /param requestedInfo one or more of the flags in ContactInfoFields
+ */
+void CntPresenceInfoProvider::requestInfo(const QContact& contact, ContactInfoFields requestedInfo)
+{
+    if (requestedInfo & ContactInfoIcon2Field)
+    {
+        QList<QContactOnlineAccount> accounts = contact.details<QContactOnlineAccount>();
+        
+        QList<PrcPresenceBuddyInfoQt*> buddies;
+        
+        foreach (QContactOnlineAccount account, accounts)
+        {
+            QString fullAccount = account.serviceProvider() + ':' + account.accountUri();
+            PrcPresenceBuddyInfoQt* buddy = iReader->presenceInfo(fullAccount);
+            
+            if (buddy)
+            {
+                buddies.append(buddy);
+                if (!mBuddyMap.contains(buddy->buddyId()))
+                {
+                    mBuddyMap.insert(buddy->buddyId(), contact.localId());
+                    iReader->subscribePresenceBuddyChange(buddy->buddyId());
+                }
+            }
+        }
+        
+        if (buddies.count())
+        {
+            QString icon = parsePresence(buddies);
+            
+            if (!icon.isEmpty())
+            {
+                emit infoFieldReady(this, contact.localId(), ContactInfoIcon2Field, icon);
+            }
+            
+            qDeleteAll(buddies);
+        }
+    }
+}
+
+/*!
+    Update presence icon for contact if needed. Stop listening to presence changes for buddy
+    if online account detail was deleted.
+
+    /param aErrorCode error (if any)
+    /param aPresenceBuddyInfo presence buddy that was updated
+ */
+void CntPresenceInfoProvider::handlePresenceUpdate(bool aSuccess, PrcPresenceBuddyInfoQt* aPresenceBuddyInfo)
+{
+    if (aSuccess && aPresenceBuddyInfo != NULL)
+    {
+        QContactLocalId id = mBuddyMap.value(aPresenceBuddyInfo->buddyId());
+        QContact contact = mManager->contact(id);
+        
+        QList<QContactOnlineAccount> accounts = contact.details<QContactOnlineAccount>();
+        
+        QList<PrcPresenceBuddyInfoQt*> buddies;
+        bool accountFound = false;
+        
+        foreach (QContactOnlineAccount account, accounts)
+        {
+            QString fullAccount = account.serviceProvider() + ':' + account.accountUri();
+            PrcPresenceBuddyInfoQt* buddy = iReader->presenceInfo(fullAccount);
+            
+            if (buddy)
+            {
+                buddies.append(buddy);
+                
+                if (fullAccount == aPresenceBuddyInfo->buddyId())
+                {
+                    accountFound = true;
+                }
+                
+                if (!mBuddyMap.contains(buddy->buddyId()))
+                {
+                    mBuddyMap.insert(buddy->buddyId(), contact.localId());
+                    iReader->subscribePresenceBuddyChange(buddy->buddyId());
+                }
+            }
+        }
+        
+        // Account was removed, no need to listen to presence changes anymore
+        if (accounts.isEmpty() || !accountFound)
+        {
+            mBuddyMap.remove(aPresenceBuddyInfo->buddyId());
+            iReader->unSubscribePresenceBuddyChange(aPresenceBuddyInfo->buddyId());
+        }
+
+        if (id > 0)
+        {
+            QString icon = parsePresence(buddies);
+            emit infoFieldReady(this, id, ContactInfoIcon2Field, icon);
+        }
+
+        qDeleteAll(buddies);
+    }
+}
+
+/*!
+    Parse the required presence icon from multiple accounts.
+
+    /param buddyList list of buddies
+ */
+QString CntPresenceInfoProvider::parsePresence(const QList<PrcPresenceBuddyInfoQt*>& buddyList)
+{
+    foreach (PrcPresenceBuddyInfoQt* buddy, buddyList)
+    {
+        PrcPresenceBuddyInfoQt::AvailabilityValues availability = buddy->availability();
+        
+        if (availability == PrcPresenceBuddyInfoQt::PrcAvailable)
+        {
+            return QString("qtg_small_online");
+        }
+    }
+    
+    return QString();
+}