--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PECengine/PresenceManager2/SrcNWSessionSlot/CPEngNWSessionSlotNotifier2Imp.cpp	Wed Sep 01 12:31:13 2010 +0100
@@ -0,0 +1,438 @@
+/*
+* Copyright (c) 2004 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:  NWSessionSlot notifier API implementation
+*
+*/
+
+// INCLUDE FILES
+#include "CPEngNWSessionSlotID2Imp.h"
+#include "CPEngNWSessionSlotNotifier2Imp.h"
+#include "CPEngNWSessionSlotEventEntry.h"
+#include "GenObserverNotifyMediators.h"
+
+#include "PEngStorageManager.h"
+#include "MPEngStorageManagerWatcher.h"
+#include "CPEngSessionSlotEvent.h"
+#include "CPEngSessionSlotState.h"
+#include "PresenceDebugPrint.h"
+
+
+
+
+#include <CPEngNWSessionSlotID2.h>
+#include <CPEngNWSessionSlotNotifier2.h>
+#include <CPEngNWSessionSlotEvent2.h>
+#include <MPEngNWSessionSlotObserver2.h>
+
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::NewL()
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CPEngNWSessionSlotNotifier2Imp* CPEngNWSessionSlotNotifier2Imp::NewL(
+    CPEngNWSessionSlotNotifier2& aInterface,
+    TInt aPriority )
+    {
+    CPEngNWSessionSlotNotifier2Imp* self =
+        new ( ELeave ) CPEngNWSessionSlotNotifier2Imp( aInterface, aPriority );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+
+// Destructor
+CPEngNWSessionSlotNotifier2Imp::~CPEngNWSessionSlotNotifier2Imp()
+    {
+    iDying = ETrue;
+    Stop();
+
+    DeleteFilters();
+    iObsArray.Close();
+    delete iEventEntry;
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::CPEngNWSessionSlotNotifier2Imp
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CPEngNWSessionSlotNotifier2Imp::CPEngNWSessionSlotNotifier2Imp( CPEngNWSessionSlotNotifier2& aInterface,
+                                                                TInt aPriority )
+        : iInterface( aInterface ),
+        iCActivePriority( aPriority )
+    {
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::ConstructL()
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::ConstructL()
+    {
+    iEventEntry = CPEngNWSessionSlotEvent2Copy::NewL();
+    }
+
+
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::StartL()
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::StartL(
+    const CPEngNWSessionSlotID2Imp* aSlotIdFilter,
+    const TArray<TPEngNWSessionSlotEvent>* aEventFilter )
+    {
+    //Pre checks
+    if ( iStarted )
+        {
+        User::Leave( KErrInUse );
+        }
+
+
+    //Clear possibly existing filters
+    DeleteFilters();
+
+    //And initialize new ones
+    if ( aSlotIdFilter )
+        {
+        iSlotIdFilter = aSlotIdFilter->CloneL();
+        }
+
+    if ( aEventFilter )
+        {
+        const TInt eventsCount = aEventFilter->Count();
+        if ( eventsCount == 0 )
+            {
+            User::Leave( KErrArgument );
+            }
+
+        iEventFilter = new ( ELeave ) RArray<TPEngNWSessionSlotEvent>;
+        for ( TInt ii = 0; ii < eventsCount; ii++ )
+            {
+            iEventFilter->InsertInSignedKeyOrderL( ( *aEventFilter )[ ii ] );
+            }
+        }
+
+    //Register for events
+    PEngStorageManager::RegisterGlobalEventObserverL( *this );
+    iStarted = ETrue;
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::Stop()
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::Stop()
+    {
+    if ( !iStarted )
+        {
+        return;
+        }
+
+    PEngStorageManager::UnregisterGlobalObserver( *this );
+    iStarted = EFalse;
+
+    DeleteFilters();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::IsActive()
+// -----------------------------------------------------------------------------
+//
+TBool CPEngNWSessionSlotNotifier2Imp::IsActive() const
+    {
+    return iStarted;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::PushNWSessionSlotStateToObservers()
+// -----------------------------------------------------------------------------
+//
+TInt CPEngNWSessionSlotNotifier2Imp::PushNWSessionSlotStateToObservers(
+    const CPEngNWSessionSlotID2& aMatchPattern )
+
+    {
+    if ( iSynchNotifyRunning || iObsArray.NotifyLoopRunning() )
+        {
+        return KErrInUse;
+        }
+
+    iSynchNotifyRunning = ETrue;
+    TRAPD( err, DoNotifyNWSessionSlotStatesL( *aMatchPattern.Implementation() ) );
+    iSynchNotifyRunning = EFalse;
+
+    return err;
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::GetNWSessionSlotState()
+// -----------------------------------------------------------------------------
+//
+TInt CPEngNWSessionSlotNotifier2Imp::GetNWSessionSlotState(
+    const CPEngNWSessionSlotID2& aNWSessionSlotID,
+    TPEngNWSessionSlotState& aState ) const
+    {
+    TRAPD( err,
+        {
+        CPEngSessionSlotState* state = CPEngSessionSlotState::NewLC();
+        PEngStorageManager::SessionSlotStateL( aNWSessionSlotID.Implementation()->BasePart(),
+                                               *state );
+
+        aState = state->AppState( aNWSessionSlotID.AppId() );
+        CleanupStack::PopAndDestroy( state );
+        } );
+
+
+    return err;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::AddObserver()
+// -----------------------------------------------------------------------------
+//
+TInt CPEngNWSessionSlotNotifier2Imp::AddObserver(
+    MPEngNWSessionSlotObserver2& aObserver )
+
+    {
+    //Observer array takes care from possible NULL pointers
+    return iObsArray.AddObserver( &aObserver );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::RemoveObserver()
+// -----------------------------------------------------------------------------
+//
+TInt CPEngNWSessionSlotNotifier2Imp::RemoveObserver(
+    MPEngNWSessionSlotObserver2& aObserver )
+
+    {
+    return iObsArray.RemoveObserver( &aObserver );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::HandleNewSessionSlotEventL()
+// From MPEngGlobalEventObserver
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::HandleNewSessionSlotEventL(
+    const CPEngSessionSlotEvent& aSessionEvent )
+    {
+    if ( iDying )
+        {
+        return;
+        }
+
+    iEventEntry->Implementation()->SetFullEventReferenceL( aSessionEvent );
+    TBool eventAccepted = IsEventAccepted( iEventEntry->NWSessionSlotID(),
+                                           iEventEntry->Event() );
+
+    if ( eventAccepted )
+        {
+        MediateNotify( KErrNone, *iEventEntry );
+        }
+
+    iEventEntry->Implementation()->ResetReferences();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::HandleObserverError()
+// From MPEngGlobalEventObserver
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::HandleObserverError( TInt aError )
+    {
+    if ( iDying )
+        {
+        return;
+        }
+
+    iEventEntry->Implementation()->ResetReferences();
+    MediateNotify( aError, *iEventEntry );
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::DoNotifyNWSessionSlotStatesL()
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::DoNotifyNWSessionSlotStatesL(
+    const CPEngNWSessionSlotID2Imp& aSlotIdMatcher )
+    {
+    //this might be called during the event notify loop
+    //==> use here temp objects so the original data isn't messed up
+
+    RObjectArray< CPEngSessionSlotState > ssStates;
+    CleanupClosePushL( ssStates );
+
+    CPEngNWSessionSlotEvent2Copy* eventEntry = CPEngNWSessionSlotEvent2Copy::NewL();
+    CleanupStack::PushL( eventEntry );
+
+    //Get list of existing slot states
+    PEngStorageManager::AllSessionSlotsStatesL( ssStates );
+
+    TInt matchCount = 0;
+
+    //Generate client side events from requested NWSessionSlots
+    const TInt ssStatesCount = ssStates.Count();
+    for ( TInt ii = 0; ii < ssStatesCount; ii++ )
+        {
+        const CPEngSessionSlotState& ssState = *ssStates[ ii ];
+        CPEngSessionSlotId& ssBaseId = ssState.SessionSlotId();
+
+        TBool baseMatch = ( aSlotIdMatcher.MatchBasePart( ssBaseId ) == KErrNone );
+        if ( baseMatch )
+            {
+            const MDesC16Array& ssApplications = ssState.RegisteredApplications();
+            const TInt appCount = ssApplications.MdcaCount();
+            for ( TInt jj = 0; jj < appCount; jj++ )
+                {
+                TPtrC appId = ssApplications.MdcaPoint( jj );
+                TBool appMatch = ( aSlotIdMatcher.MatchAppIdPart( appId ) == KErrNone );
+                if ( appMatch )
+                    {
+                    matchCount++;
+                    eventEntry->Implementation()->SetPseudoEventReferenceL(
+                        ssBaseId,
+                        appId,
+                        ssState.AppState( appId ),
+                        ssState.SessionSlotState() );
+                    MediateNotify( KErrNone, *eventEntry );
+                    eventEntry->Implementation()->ResetReferences();
+                    }
+                }
+            }
+        }
+
+    if ( matchCount == 0 )
+        {
+        User::Leave( KErrNotFound );
+        }
+
+    CleanupStack::PopAndDestroy( 2 ); //ssStates, eventEntry
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::DeleteFilters()
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::DeleteFilters()
+    {
+    delete iSlotIdFilter;
+    iSlotIdFilter = NULL;
+
+    if ( iEventFilter )
+        {
+        iEventFilter->Reset();
+        }
+
+    delete iEventFilter;
+    iEventFilter = NULL;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::IsEventAccepted()
+// -----------------------------------------------------------------------------
+//
+TBool CPEngNWSessionSlotNotifier2Imp::IsEventAccepted(
+    const CPEngNWSessionSlotID2& aNWSessionSlotID,
+    TPEngNWSessionSlotEvent aEvent ) const
+    {
+    TBool accepted = ETrue;
+
+    if ( iSlotIdFilter )
+        {
+        if ( iSlotIdFilter->MatchFullId( *aNWSessionSlotID.Implementation() ) == KErrNotFound )
+            {
+            accepted = EFalse;
+            }
+        }
+
+
+    if ( iEventFilter && accepted )
+        {
+        if ( iEventFilter->Find( aEvent ) == KErrNotFound )
+            {
+            accepted = EFalse;
+            }
+        }
+
+
+    return accepted;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPEngNWSessionSlotNotifier2Imp::MediateNotify()
+// -----------------------------------------------------------------------------
+//
+void CPEngNWSessionSlotNotifier2Imp::MediateNotify( TInt aError,
+                                                    CPEngNWSessionSlotEvent2& aEvent )
+    {
+    TGenNotifyMediator2 < MPEngNWSessionSlotObserver2,
+    CPEngNWSessionSlotNotifier2&,
+    CPEngNWSessionSlotEvent2& >
+    eventMediator( &MPEngNWSessionSlotObserver2::HandleNWSessionSlotChangeL,
+                   &MPEngNWSessionSlotObserver2::HandleNWSessionSlotError,
+                   iInterface,
+                   aEvent );
+
+    if ( aError == KErrNone )
+        {
+        PENG_DP( D_PENG_LIT( "CPEngNWSessionSlotNotifier2 - Handle event: %d" ),
+                 aEvent.Event() );
+
+        iObsArray.NotifyObservers( eventMediator );
+        }
+    else
+        {
+        PENG_DP( D_PENG_LIT( "CPEngNWSessionSlotNotifier2 - Handle event error: %d" ),
+                 aError );
+
+        iObsArray.NotifyErrorObservers( eventMediator, aError );
+        }
+    }
+
+
+
+
+// End of File
+
+