--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/client/src/ncdfiledownloadoperationproxy.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,413 @@
+/*
+* 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:   Implements CNcdFileDownloadOperationProxy
+*
+*/
+
+
+#include <s32strm.h>
+#include "ncdfiledownloadoperationproxy.h"
+#include "ncdfiledownloadoperationobserver.h"
+#include "catalogsdebug.h"
+#include "ncddownloadoperationstates.h"
+#include "ncdoperationproxyremovehandler.h"
+#include "catalogsclientserver.h"
+#include "catalogsutils.h"
+#include "ncdnodeproxy.h"
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// NewL
+// ---------------------------------------------------------------------------
+//
+CNcdFileDownloadOperationProxy* CNcdFileDownloadOperationProxy::NewL( 
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    MNcdOperationProxyRemoveHandler* aRemoveHandler,
+    CNcdNodeProxy* aNode,
+    CNcdNodeManagerProxy* aNodeManager,
+    const TDesC& aTargetFilename,
+    MNcdFileDownloadOperationObserver* aObserver,
+    TNcdDownloadDataType aDataType )
+    {
+    CNcdFileDownloadOperationProxy* self = 
+        CNcdFileDownloadOperationProxy::NewLC( 
+        aSession,
+        aHandle,
+        aRemoveHandler,
+        aNode,
+        aNodeManager,
+        aTargetFilename,
+        aObserver,
+        aDataType );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// NewLC
+// ---------------------------------------------------------------------------
+//
+CNcdFileDownloadOperationProxy* CNcdFileDownloadOperationProxy::NewLC( 
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    MNcdOperationProxyRemoveHandler* aRemoveHandler,
+    CNcdNodeProxy* aNode,
+    CNcdNodeManagerProxy* aNodeManager,
+    const TDesC& aTargetFilename,
+    MNcdFileDownloadOperationObserver* aObserver,
+    TNcdDownloadDataType aDataType )
+    {
+    CNcdFileDownloadOperationProxy* self =
+        new( ELeave ) CNcdFileDownloadOperationProxy( aDataType );    
+    
+    self->AddRef();
+    CleanupReleasePushL( *self );        
+    self->ConstructL( aSession, aHandle, aRemoveHandler,
+        aNode, aNodeManager, aObserver, aTargetFilename );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// From MNcdFileDownloadOperation
+// 
+// ---------------------------------------------------------------------------
+//
+const TDesC& CNcdFileDownloadOperationProxy::TargetFileName() const
+    {
+    DASSERT( iTargetFilename );
+    return *iTargetFilename;
+    }
+
+
+// ---------------------------------------------------------------------------
+// From MNcdFileDownloadOperation
+// 
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::PauseL()
+    {
+    DLTRACEIN( ( "" ) );
+    HBufC8* data = NULL;
+    
+    TState state = OperationStateL();
+    // Check that the operation is in a resumable state    
+    if ( state == EStateCancelled ) 
+        {
+        DLERROR(("Cannot resume! Operation has been cancelled. Leaving"));
+        User::Leave( KErrCancel );
+        }
+    
+    // Operation must be running for pause to work    
+    if ( state != EStateRunning || iIsPaused ) 
+        {     
+        DLTRACEOUT(("Operation complete or other unresumable state"));   
+        return;
+        }    
+    
+    ClientServerSession().SendSyncAlloc( ENCDOperationFunctionPause,
+        KNullDesC8(),
+        data,
+        Handle(),
+        0 );
+    
+    if ( data ) 
+        {
+        DLTRACE(("Received progress information"));
+        
+        RDesReadStream stream( *data );
+        CleanupStack::PushL( data );
+        CleanupClosePushL( stream );
+
+        // Just read completionId from the stream
+        stream.ReadInt32L();
+        
+        TNcdSendableProgress progress;
+        // Read progress info
+        progress.InternalizeL( stream );
+        
+        // Update paused state
+        iIsPaused = ( progress.iState == ENcdDownloadPaused );        
+        
+        CleanupStack::PopAndDestroy( 2, data ); // stream, data        
+        }
+                    
+    SetState( EStateRunning );     
+    DLTRACEOUT( ( "IsPaused: %d", iIsPaused ) );    
+    }
+
+
+// ---------------------------------------------------------------------------
+// From MNcdFileDownloadOperation
+// 
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::ResumeL()
+    {
+    DLTRACEIN(( "" ));
+    HBufC8* data = NULL;
+    TState state = OperationStateL();
+
+    // Check that the operation is in a resumable state    
+    if ( state == EStateCancelled ) 
+        {
+        DLERROR(("Cannot resume! Operation has been cancelled. Leaving"));
+        User::Leave( KErrCancel );
+        }
+        
+    if ( ( state != EStateStopped && state != EStateRunning ) || !iIsPaused )
+        {     
+        DLTRACEOUT(("Operation complete or other unresumable state"));   
+        return;
+        }
+    
+    ClientServerSession().SendSyncAlloc( ENCDOperationFunctionResume,
+        KNullDesC8(),
+        data,
+        Handle(),
+        0 );
+        
+    if ( data ) 
+        {
+        DLTRACE(("Received progress information"));
+        RDesReadStream stream( *data );
+        CleanupStack::PushL( data );
+        CleanupClosePushL( stream );
+
+        // Just read the completionId from the stream
+        stream.ReadInt32L();
+        
+        TNcdSendableProgress progress;
+        // Read progress info
+        
+        progress.InternalizeL( stream );
+        // Update paused-state
+        iIsPaused = ( progress.iState == ENcdDownloadPaused );
+            
+        DLTRACE(("Sending continue message"));
+        if ( progress.iState == KNcdDownloadContinueMessageRequired  )
+            {
+            SendContinueMessageL();
+            }        
+        
+        CleanupStack::PopAndDestroy( 2, data ); // stream, data        
+        }
+                
+    SetState( EStateRunning );     
+    DLTRACEOUT(( "" ));
+    
+    }
+
+
+// ---------------------------------------------------------------------------
+// From MNcdFileDownloadOperation
+// 
+// ---------------------------------------------------------------------------
+//
+TBool CNcdFileDownloadOperationProxy::IsPaused()
+    {
+    return iIsPaused;
+    }
+
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+TBool CNcdFileDownloadOperationProxy::IsPausableL()
+    {
+    DLTRACEIN((""));
+    TInt data = KErrNone;
+    User::LeaveIfError( ClientServerSession().SendSync( 
+        ENCDOperationFunctionGetData,
+        KNullDesC8(),
+        data,
+        Handle() ) );
+    
+    DLTRACEOUT(("pausable: %d", data == KNcdDownloadIsPausable ));
+    return data == KNcdDownloadIsPausable;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Download type getter
+// ---------------------------------------------------------------------------
+//
+TNcdDownloadDataType CNcdFileDownloadOperationProxy::DownloadDataType() const
+    {
+    return iDataType;
+    }
+
+
+// ---------------------------------------------------------------------------
+// From MNcdOperation
+// Operation type getter
+// ---------------------------------------------------------------------------
+//
+TNcdInterfaceId CNcdFileDownloadOperationProxy::OperationType() const
+    {
+    return static_cast<TNcdInterfaceId>(
+        MNcdFileDownloadOperation::KInterfaceUid );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CNcdFileDownloadOperationProxy::CNcdFileDownloadOperationProxy( 
+    TNcdDownloadDataType aDataType )
+    : CNcdOperation< MNcdFileDownloadOperation >( NULL ), iIsPaused( EFalse ),
+       iDataType( aDataType )
+    {
+    }
+
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CNcdFileDownloadOperationProxy::~CNcdFileDownloadOperationProxy()
+    {
+    DLTRACEIN( ( "" ) );    
+    delete iTargetFilename; 
+    DASSERT( iRemoveHandler ); 
+    if ( iRemoveHandler )
+        {        
+        DLTRACE(("Removing proxy from remove handler"));
+        iRemoveHandler->RemoveOperationProxy( *this );
+        }
+      
+    DLTRACEOUT( ( "" ) );    
+    }
+
+
+// ---------------------------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::ConstructL( MCatalogsClientServer& aSession,
+    TInt aHandle,
+    MNcdOperationProxyRemoveHandler* aRemoveHandler,
+    CNcdNodeProxy* aNode,
+    CNcdNodeManagerProxy* aNodeManager,
+    MNcdFileDownloadOperationObserver* aObserver,
+    const TDesC& aTargetFilename )
+    {
+    DLTRACEIN( ( "" ) );
+    CNcdBaseOperationProxy::ConstructL( aSession, aHandle, aRemoveHandler,
+        aNode, aNodeManager );
+    iObserver = aObserver;
+    iTargetFilename = aTargetFilename.AllocL();
+    
+    // Initialize the operation if necessary. Initialization mechanism is used
+    // here to transfer the targetfilename to serverside unless it is
+    // transferred in node id    
+    if ( aNode ) 
+        {        
+        InitializeOperationL();
+        }
+    DLTRACEOUT( ( "" ) );    
+    }
+    
+    
+// ---------------------------------------------------------------------------
+// Handle progress callback
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::ProgressCallback()
+    {
+    DLTRACEIN( ( "" ) );
+    if ( iObserver ) 
+        {
+        
+        TNcdSendableProgress& sendableProgress( SendableProgress() );
+        TNcdProgress progress( sendableProgress.iProgress, 
+                               sendableProgress.iMaxProgress );
+                       
+        iObserver->FileDownloadProgress( *this, progress );
+        }
+    DLTRACEOUT( ( "" ) );
+    }
+    
+    
+// ---------------------------------------------------------------------------
+// Handle query received callback
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::QueryReceivedCallback( CNcdQuery* /*aQuery*/ )
+    {
+    DLTRACEIN( ( "" ) );
+    DLTRACEOUT( ( "" ) );
+    }
+    
+    
+// ---------------------------------------------------------------------------
+// Handle operation complete
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::CompleteCallback( TInt aError )
+    {
+    AddRef();
+    DLTRACEIN( ( "Error: %d", aError ) );
+    iIsPaused = EFalse;
+    
+    if ( iObserver ) 
+        {        
+        iObserver->OperationComplete( *this, aError );
+        }
+
+    Release();
+    DLTRACEOUT( ( "" ) );
+    }
+    
+
+// ---------------------------------------------------------------------------
+// Create initialization data sent to the server-side
+// ---------------------------------------------------------------------------
+//
+HBufC8* CNcdFileDownloadOperationProxy::CreateInitializationBufferL()
+    {
+    DLTRACEIN( ( "" ) );
+    DASSERT( iTargetFilename );
+    
+    HBufC8* buf = HBufC8::NewLC( 2 * KMaxPath );
+    
+    TPtr8 ptr( buf->Des() );
+    RDesWriteStream stream( ptr );
+    CleanupClosePushL( stream );
+    ExternalizeDesL( *iTargetFilename, stream );
+    CleanupStack::PopAndDestroy( &stream );
+    CleanupStack::Pop( buf );    
+    return buf;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Handle initialization callback
+// ---------------------------------------------------------------------------
+//
+void CNcdFileDownloadOperationProxy::InitializationCallback( 
+    RReadStream& /* aReadStream */, TInt /* aDataLength */ )
+    {
+    DLTRACEIN( ( "" ) );
+    }
+
+    
+