diff -r 000000000000 -r ba25891c3a9e ncdengine/provider/client/src/ncdnodeskinproxy.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ncdengine/provider/client/src/ncdnodeskinproxy.cpp Thu Dec 17 08:51:10 2009 +0200 @@ -0,0 +1,290 @@ +/* +* 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 CNcdNodeSkinProxy class implementation +* +*/ + + +#include "ncdnodeskinproxy.h" +#include "ncdnodeproxy.h" +#include "ncdnodemetadataproxy.h" +#include "ncdoperationimpl.h" +#include "ncdfiledownloadoperationproxy.h" +#include "ncdoperationmanagerproxy.h" +#include "ncdoperationdatatypes.h" +#include "catalogsclientserver.h" +#include "ncdnodeidentifier.h" +#include "ncdnodefunctionids.h" +#include "ncdnodeclassids.h" +#include "catalogsinterfaceidentifier.h" +#include "catalogsutils.h" +#include "catalogsdebug.h" +#include "ncderrors.h" + + +// ======== PUBLIC MEMBER FUNCTIONS ======== + +CNcdNodeSkinProxy::CNcdNodeSkinProxy( + MCatalogsClientServer& aSession, + TInt aHandle, + CNcdNodeMetadataProxy& aMetadata ) + : CNcdInterfaceBaseProxy( aSession, aHandle, &aMetadata ), + iMetadata( aMetadata ), + iTimeStamp( 0 ) + { + } + + +void CNcdNodeSkinProxy::ConstructL() + { + // Register the interface + MNcdNodeSkin* interface( this ); + AddInterfaceL( + CCatalogsInterfaceIdentifier::NewL( interface, this, MNcdNodeSkin::KInterfaceUid ) ); + + // Make sure that the skin id contains at least some data. + iSkinId = KNullDesC().AllocL(); + + // Constructor already initialized timestamp to zero. + + InternalizeL(); + } + + +CNcdNodeSkinProxy* CNcdNodeSkinProxy::NewL( + MCatalogsClientServer& aSession, + TInt aHandle, + CNcdNodeMetadataProxy& aMetadata ) + { + CNcdNodeSkinProxy* self = + CNcdNodeSkinProxy::NewLC( aSession, aHandle, aMetadata ); + CleanupStack::Pop( self ); + return self; + } + +CNcdNodeSkinProxy* CNcdNodeSkinProxy::NewLC( + MCatalogsClientServer& aSession, + TInt aHandle, + CNcdNodeMetadataProxy& aMetadata ) + { + CNcdNodeSkinProxy* self = + new( ELeave ) CNcdNodeSkinProxy( aSession, aHandle, aMetadata ); + // Using PushL because the object does not have any references yet + CleanupStack::PushL( self ); + self->ConstructL(); + return self; + } + + +CNcdNodeSkinProxy::~CNcdNodeSkinProxy() + { + // 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( MNcdNodeSkin::KInterfaceUid ); + + // Delete member variables here + delete iSkinId; + iSkinId = NULL; + + // Do not delete metadata because this object does not own it. + } + + +void CNcdNodeSkinProxy::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(("Skin 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( MNcdNodeSkin::KInterfaceUid ); + // Remove from the parent + RemoveFromParent(); + // Now update the interface for this object just in case somebody needs it. + // Register the interface + MNcdNodeSkin* interface( this ); + AddInterfaceL( + CCatalogsInterfaceIdentifier::NewL( interface, this, MNcdNodeSkin::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(("")); + } + + +// MNcdNodeSkin functions + +const TDesC& CNcdNodeSkinProxy::SkinId() const + { + DLTRACEIN(("")); + // SkinId is always set to contain some data. At least it is KNullDesC. + DLINFO(( _L("SkinID: %S"), iSkinId )); + return *iSkinId; + } + + +TTime CNcdNodeSkinProxy::SkinTimeStamp() const + { + return iTimeStamp; + } + + +MNcdFileDownloadOperation* CNcdNodeSkinProxy::LoadSkinL( + const TDesC& aTargetFileName, + MNcdFileDownloadOperationObserver& aObserver ) + { + DLTRACEIN(("")); + + CNcdFileDownloadOperationProxy* operation( + MetadataL().Node().OperationManager(). + CreateFileDownloadOperationL( ENcdSkinDownload, + MetadataL().Node(), + &aObserver, + aTargetFileName ) ); + + // It is enought that the observer is informed + // when the file operation is ready. So, no need to add + // node or this class object to be observers. + + // No need to increase the operation ref count here because + // it should be initially one. + + DLTRACEOUT(("")); + + return operation; + } + + +// Other functions + +CNcdNodeMetadataProxy& CNcdNodeSkinProxy::MetadataL() const + { + DLTRACEIN(("")); + + if( IsObsolete() ) + { + DLERROR(("Skin is obsolete. Metadata may not exist.")); + User::Leave( KNcdErrorObsolete ); + } + + DLTRACEOUT(("")); + + return iMetadata; + } + + +TBool CNcdNodeSkinProxy::IsObsolete() const + { + return iObsolete; + } + +void CNcdNodeSkinProxy::SetObsolete( TBool aObsolete ) + { + iObsolete = aObsolete; + } + + +void CNcdNodeSkinProxy::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::ENcdNodeSkinClassId ) + { + // classId is not recognized + DLERROR(("Class id was not recognized!")); + // For testing purposes assert here + DASSERT( EFalse ); + + // Otherwise leave is adequate + User::Leave( KErrCorrupt ); + } + + + // Get the skin id from the stream + InternalizeDesL( iSkinId, aStream ); + DLINFO(( _L("SkinID: %S"), iSkinId )); + // Get the timestamp and change the descriptor info to be TTime type + HBufC* timeStamp( NULL ); + InternalizeDesL( timeStamp, aStream ); + if ( timeStamp != NULL && timeStamp->Length() > 0 ) + { + CleanupStack::PushL( timeStamp ); + iTimeStamp.Parse( *timeStamp ); + CleanupStack::PopAndDestroy( timeStamp ); + } + else + { + // Because the timestamp was not given, set the time to zero value. + + // In case time stamp descriptor was allocated but length was zero, delete. + delete timeStamp; + iTimeStamp = 0; + } + + DLTRACEOUT(("")); + }