diff -r 000000000000 -r 4e91876724a2 photosgallery/collectionframework/thumbnailcreator/src/glxtntask.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/src/glxtntask.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,152 @@
+/*
+* Copyright (c) 2008-2009 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:    Base classes for multi-purpuse tasks
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 31/07/2007 by Simon Brooks
+ */
+
+
+#include "glxtntask.h"
+
+#include <glxtracer.h>
+
+#include "mglxtnthumbnailcreatorclient.h"
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnTask::CGlxtnTask(const TGlxtnTaskId& aId, const TGlxMediaId& aItemId,
+                        MGlxtnThumbnailStorage* aStorage)
+		: iState(EStarting), iId(aId), iItemId(aItemId), iStorage(aStorage)
+    {
+    TRACER("CGlxtnTask::CGlxtnTask()");
+    iPriority = CActive::EPriorityStandard;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnTask::~CGlxtnTask()
+    {
+    TRACER("CGlxtnTask::~CGlxtnTask()");
+    }
+
+// -----------------------------------------------------------------------------
+// SetManager
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::SetManager(CGlxtnTaskManager* /*aManager*/)
+    {
+    TRACER("CGlxtnTask::SetManager()");
+    // No implementation - can be overridden by subclasses
+    }
+
+// -----------------------------------------------------------------------------
+// StartL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::StartL(TRequestStatus& aStatus)
+	{
+    TRACER("CGlxtnTask::StartL()");
+	__ASSERT_DEBUG(iState == EIdle || iState == EStarting, Panic(EGlxPanicIllegalState));
+	
+	iState = EStarting;
+	
+	TBool active = DoStartL(aStatus);
+	
+	if (active) 
+		{
+		iState = ERunning;
+		}
+	else 
+		{
+		iState = EComplete; // Well, that was quick
+		}
+	}
+
+// -----------------------------------------------------------------------------
+// Cancel
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::Cancel()
+    {
+    TRACER("CGlxtnTask::Cancel()");
+    if ( ERunning == iState )
+        {
+        DoCancel();
+        }
+
+    iState = ECanceled;
+    }
+	
+// -----------------------------------------------------------------------------
+// RunL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::RunL(TRequestStatus& aStatus) 
+	{
+    TRACER("void CGlxtnTask::RunL()");
+	__ASSERT_DEBUG(iState == ERunning, Panic(EGlxPanicIllegalState));
+	
+	TBool active = DoRunL(aStatus);
+	
+	if (!active) 
+		{
+		iState = EComplete; // The task is done
+		}
+	}
+
+// -----------------------------------------------------------------------------
+// RunError
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::RunError(TInt aError)
+    {
+    TRACER("void CGlxtnTask::RunError()");
+    if ( !DoRunError(aError) ) 
+        {
+        iState = EComplete; // The task is done
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// SelfComplete
+// -----------------------------------------------------------------------------
+//
+void CGlxtnTask::SelfComplete(TRequestStatus& aStatus) 
+	{
+    TRACER("CGlxtnTask::SelfComplete()");
+    aStatus = KRequestPending;
+    TRequestStatus* status = &aStatus;
+    User::RequestComplete(status, KErrNone);
+	}
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnClientTask::CGlxtnClientTask(const TGlxtnTaskId& aId,
+        const TGlxMediaId& aItemId, MGlxtnThumbnailCreatorClient& aClient) :
+    CGlxtnTask(aId, aItemId, aClient.ThumbnailStorage()), iClient(aClient)
+    {
+    TRACER("CGlxtnClientTask::CGlxtnClientTask()");
+    }