--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/network/symbian/FileReader.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,203 @@
+/*
+* 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 the License "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:  Implementation of CFileReader
+*
+*/
+
+
+// INCLUDE FILES
+#include "ResourceHandle.h"
+#include "FileConnection.h"
+#include "FileReader.h"
+
+// EXTERNAL DATA STRUCTURES
+
+// EXTERNAL FUNCTION PROTOTYPES  
+
+// CONSTANTS
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CFileReader::CFileReader
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CFileReader::CFileReader(RFile& aFile, TInt aChunkSize, FileConnection* aFileConnection) 
+    : CActive( CActive::EPriorityHigh ), 
+      m_file( aFile ), m_chunkSize( aChunkSize ), m_fileConnection( aFileConnection ),
+      m_chunkBufPtr( NULL, 0 ), m_stopReading( EFalse )
+{
+    CActiveScheduler::Add( this );
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CFileReader::ConstructL()
+{
+    m_chunkBuffer = HBufC8::NewL( m_chunkSize );
+    //
+    m_chunkBufPtr.Set( (TUint8*)m_chunkBuffer->Des().Ptr(), m_chunkSize, m_chunkSize );
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CFileReader* CFileReader::NewL(RFile& aFile, TInt aChunkSize, FileConnection* aFileConnection) 
+{
+    CFileReader* self = new( ELeave ) CFileReader( aFile, aChunkSize, aFileConnection );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+}
+
+    
+// Destructor
+CFileReader::~CFileReader()
+{
+    Cancel();
+    //
+    delete m_chunkBuffer;
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::StartReading
+// 
+// 
+// -----------------------------------------------------------------------------
+//
+void CFileReader::StartReading()
+{
+    //
+    m_filePos = 0;
+    // start reading
+    ReadFile();
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::StopReading
+// 
+// 
+// -----------------------------------------------------------------------------
+//
+void CFileReader::StopReading()
+{
+    m_stopReading = ETrue;
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::GetChunkBuffer
+// 
+// 
+// -----------------------------------------------------------------------------
+//
+void CFileReader::GetChunkBuffer( TPtrC8& aChunkBuffer )
+{
+    aChunkBuffer.Set( m_chunkBufPtr );
+}
+
+
+// -----------------------------------------------------------------------------
+// CFileReader::DoCancel
+// 
+// 
+// -----------------------------------------------------------------------------
+//
+void CFileReader::DoCancel()
+{
+    if (IsActive()) {
+        m_file.ReadCancel(iStatus);
+    }    
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::RunL
+// 
+// 
+// -----------------------------------------------------------------------------
+//
+void CFileReader::RunL()
+{
+    // do not send the chunk back to the transaction if the trans has been cancelled
+    if( !m_stopReading ) {
+        switch( iStatus.Int() )
+        {
+            case KErrNone:
+            {
+                TInt bytesRead = m_chunkBufPtr.Length();
+                // 0 means we read beyond the file 
+                if( bytesRead ) {
+                    // let the observer know. 
+                    m_fileConnection->response();
+                    // If it is not Browser content, reading the file
+                    // is canceled in FileConnection::download().
+                    if( !m_stopReading ) {
+                        // fix file pos
+                        m_filePos+=bytesRead;
+                        // keep on reading
+                        ReadFile();
+                    }
+                }
+                else {
+                    // let the observer know
+                    m_fileConnection->complete(KErrNone);
+                }
+                break;
+            }
+            default:
+            {
+                //
+                m_fileConnection->complete( iStatus.Int() );
+                break;
+            }
+        }
+    }
+}
+
+// -----------------------------------------------------------------------------
+// CFileReader::ReadFile
+// 
+// 
+// -----------------------------------------------------------------------------
+//
+void CFileReader::ReadFile() 
+{
+    if( !m_stopReading ) {
+        SetActive();
+        m_file.Read( m_filePos, m_chunkBufPtr, m_chunkSize, iStatus );
+    }
+}
+
+
+//  End of File