diff -r 000000000000 -r ba25891c3a9e ncdengine/provider/client/src/ncdnodescreenshotproxy.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/client/src/ncdnodescreenshotproxy.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,305 @@
+/*
+* Copyright (c) 2006 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:   Contains CNcdNodeScreenshotProxy class implementation
+*
+*/
+
+
+#include "ncdnodescreenshotproxy.h"
+#include "ncdnodemetadataproxy.h"
+#include "ncdnodeproxy.h"
+#include "ncddownloadoperationproxy.h"
+#include "ncdoperationmanagerproxy.h"
+#include "ncdoperationdatatypes.h"
+#include "catalogsclientserver.h"
+#include "ncdnodeidentifier.h"
+#include "ncdnodefunctionids.h"
+#include "ncdnodeclassids.h"
+#include "ncdpanics.h"
+#include "catalogsinterfaceidentifier.h"
+#include "catalogsutils.h"
+#include "catalogsdebug.h"
+#include "ncderrors.h"
+
+
+// ======== PUBLIC MEMBER FUNCTIONS ========
+
+CNcdNodeScreenshotProxy::CNcdNodeScreenshotProxy(
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    CNcdNodeMetadataProxy& aMetadata )
+    : CNcdInterfaceBaseProxy( aSession, aHandle, &aMetadata ),
+      iMetadata( aMetadata )
+    {
+    }
+
+
+void CNcdNodeScreenshotProxy::ConstructL()
+    {
+    // Register the interface
+    MNcdNodeScreenshot* interface( this );
+    AddInterfaceL( 
+        CCatalogsInterfaceIdentifier::NewL( interface, this, MNcdNodeScreenshot::KInterfaceUid ) );
+
+    // Let this leave if the internalization fails.    
+    InternalizeL();
+    }
+
+
+CNcdNodeScreenshotProxy* CNcdNodeScreenshotProxy::NewL(
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    CNcdNodeMetadataProxy& aMetadata )
+    {
+    CNcdNodeScreenshotProxy* self = 
+        CNcdNodeScreenshotProxy::NewLC( aSession, aHandle, aMetadata );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+CNcdNodeScreenshotProxy* CNcdNodeScreenshotProxy::NewLC(
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    CNcdNodeMetadataProxy& aMetadata )
+    {
+    CNcdNodeScreenshotProxy* self = 
+        new( ELeave ) CNcdNodeScreenshotProxy( aSession, aHandle, aMetadata );
+    // Using PushL because the object does not have any references yet
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+
+CNcdNodeScreenshotProxy::~CNcdNodeScreenshotProxy()
+    {
+    // Remove interfaces implemented by this class from the interface list.
+    // So, the interface list is up to date when this class object is deleted.
+    RemoveInterface( MNcdNodeScreenshot::KInterfaceUid );
+    
+    // Delete member variables here.
+    // Do not delete node and operation manager because
+    // this object does not own them.
+
+    iScreenshotMimeType.ResetAndDestroy();
+    }
+
+
+CNcdNodeMetadataProxy& CNcdNodeScreenshotProxy::MetadataL() const
+    {
+    DLTRACEIN((""));
+
+    if( IsObsolete() )
+        {
+        DLERROR(("Screenshot is obsolete. Metadata may not exist."));
+        User::Leave( KNcdErrorObsolete );
+        }
+    
+    DLTRACEOUT((""));
+    
+    return iMetadata;
+    }
+
+
+void CNcdNodeScreenshotProxy::InternalizeL()
+    {
+    DLTRACEIN((""));
+
+    HBufC8* data( NULL );
+        
+    // Because we do not know the exact size of the data, use
+    // the alloc method, which creates the buffer of the right size
+    // and sets the pointer to point to the created buffer.
+    // Get all the data that is necessary to internalize this object
+    // from the server side.
+    TInt error(
+        ClientServerSession().
+        SendSyncAlloc( NcdNodeFunctionIds::ENcdInternalize,
+                       KNullDesC8,
+                       data,
+                       Handle(),
+                       0 ) );
+
+    if ( error == KNcdErrorObsolete )
+        {
+        DLINFO(("Screenshot was obsolete"));
+        SetObsolete( ETrue );
+        // Remove interfaces implemented by this class from the top parent interface list.
+        // So, the interface list is up to date after this object is removed
+        // from its top parent.
+        RemoveInterface( MNcdNodeScreenshot::KInterfaceUid );
+        // Remove from the parent
+        RemoveFromParent();
+        // Now update the interface for this object just in case somebody needs it.
+        // Register the interface
+        MNcdNodeScreenshot* interface( this );
+        AddInterfaceL( 
+            CCatalogsInterfaceIdentifier::NewL( interface, this, MNcdNodeScreenshot::KInterfaceUid ) );
+        }
+    else
+        {
+        // Just in case it was some times obsolete but not anymore
+        SetObsolete( EFalse );
+        }
+        
+    // If error occurred during data transfer, leave here and forward the error.
+    User::LeaveIfError( error );
+
+    if ( data == NULL )
+        {
+        DLERROR((""));
+        User::Leave( KErrNotFound );
+        }
+
+    CleanupStack::PushL( data );
+
+    // Read the data from the stream and insert it to the memeber variables
+    RDesReadStream stream( *data );
+    CleanupClosePushL( stream );
+
+    InternalizeDataL( stream );
+
+    // Closes the stream
+    CleanupStack::PopAndDestroy( &stream ); 
+    CleanupStack::PopAndDestroy( data );
+
+    DLTRACEOUT((""));    
+    }
+
+
+// MNcdNodeScreenshot functions
+
+TInt CNcdNodeScreenshotProxy::ScreenshotCount() const
+    {
+    return iScreenshotCount;
+    }
+
+const TDesC& CNcdNodeScreenshotProxy::ScreenshotMimeType( TInt aIndex ) const
+    {
+    NCD_ASSERT_ALWAYS( aIndex >= 0 && aIndex < ScreenshotCount(),
+        ENcdPanicIndexOutOfRange );
+    return *iScreenshotMimeType[aIndex];
+    }
+
+MNcdDownloadOperation* CNcdNodeScreenshotProxy::LoadScreenshotL(
+    TInt aIndex,
+    MNcdDownloadOperationObserver* aObserver )
+    {
+    DLTRACEIN((""));
+    NCD_ASSERT_ALWAYS( aIndex >= 0 && aIndex < ScreenshotCount(),
+        ENcdPanicIndexOutOfRange );
+
+    CNcdDownloadOperationProxy* download =
+        MetadataL().Node().OperationManager().
+        CreateDownloadOperationL(
+            ENcdScreenshotDownload,
+            MetadataL().Node(),
+            KNullDesC,
+            aObserver,
+            aIndex );
+
+    DLTRACEOUT((""));
+
+    return download;
+    }
+
+HBufC8* CNcdNodeScreenshotProxy::ScreenshotDataL( TInt aIndex ) const
+    {
+    NCD_ASSERT_ALWAYS( aIndex >= 0 && aIndex < ScreenshotCount(),
+        ENcdPanicIndexOutOfRange );
+
+    HBufC8* data( NULL );
+
+    HBufC8* index = IntToDes8LC( aIndex );
+
+    // Because we do not know the exact size of the data, use
+    // the alloc method, which creates the buffer of the right size
+    // and sets the pointer to point to the created buffer.
+    User::LeaveIfError(
+        ClientServerSession().
+        SendSyncAlloc( NcdNodeFunctionIds::ENcdScreenshotData,
+                       *index,
+                       data,
+                       Handle(),
+                       0 ) );
+
+    CleanupStack::PopAndDestroy( index );
+
+    if ( data && data->Length() == 0 )
+        {
+        // If data does not contain any data, return NULL.
+        delete data;
+        return NULL;
+        }
+
+    return data;
+    }
+
+
+// Other functions
+
+
+TBool CNcdNodeScreenshotProxy::IsObsolete() const
+    {
+    return iObsolete;
+    }
+
+void CNcdNodeScreenshotProxy::SetObsolete( TBool aObsolete )
+    {
+    iObsolete = aObsolete;
+    }    
+    
+    
+void CNcdNodeScreenshotProxy::InternalizeDataL( RReadStream& aStream )
+    {
+    DLTRACEIN((""));
+
+    // Use catalogsutils.h functions to internalize
+    // memebervariables according to the data received
+    // from the server.
+    // Make sure that the variables are set here in the same
+    // order as they are externalized in the server side.
+    // Small mistake here messes up everything!
+
+    // First read the class id. Because, it is the first thing in the stream.
+    TInt classId( aStream.ReadInt32L() );
+    
+    if ( classId != NcdNodeClassIds::ENcdNodeScreenshotClassId )
+        {
+        // classId is not recognized
+        DLERROR(("Class id was not recognized!"));
+        // For testing purposes assert here
+        DASSERT( EFalse );
+        
+        // Otherwise leave is adequate
+        User::Leave( KErrCorrupt );
+        }
+
+
+    iScreenshotCount = aStream.ReadInt32L();
+
+    iScreenshotMimeType.ResetAndDestroy();
+
+    // Set new values if screenshots exist.
+    for ( TInt i = 0; i < iScreenshotCount; i++ )
+        {
+        HBufC* mimeType = NULL;
+        InternalizeDesL( mimeType, aStream );
+        CleanupStack::PushL( mimeType );
+        iScreenshotMimeType.AppendL( mimeType );
+        CleanupStack::Pop( mimeType );
+        }
+
+    DLTRACEOUT((""));
+    }