--- /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((""));
+ }