--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/thumbnailcreator/src/glxtnfilteravailabletask.cpp	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,189 @@
+/*
+* 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:    Task used for thumbnail availability filter.
+*
+*/
+
+
+
+
+/**
+ * @internal reviewed 31/07/2007 by Simon Brooks
+ */
+
+#include "glxtnfilteravailabletask.h"
+
+#include <glxassert.h>
+#include <glxtracer.h>
+
+#include "glxtnfileinfo.h"
+#include "mglxtnstorage.h"
+#include "mglxtnthumbnailcreatorclient.h"
+
+// -----------------------------------------------------------------------------
+// NewL
+// -----------------------------------------------------------------------------
+//
+CGlxtnFilterAvailableTask* CGlxtnFilterAvailableTask::NewL(
+                    const TArray<TGlxMediaId>& aItemArray, const TSize& aSize,
+                    MGlxtnThumbnailCreatorClient& aClient)
+    {
+    TRACER("CGlxtnFilterAvailableTask* CGlxtnFilterAvailableTask::NewL()");
+    CGlxtnFilterAvailableTask* task = new (ELeave) CGlxtnFilterAvailableTask(
+                                                                aSize, aClient);
+    CleanupStack::PushL(task);
+    task->ConstructL(aItemArray);
+    CleanupStack::Pop(task);
+    return task;
+    }
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnFilterAvailableTask::CGlxtnFilterAvailableTask(const TSize& aSize,
+                                        MGlxtnThumbnailCreatorClient& aClient) :
+    CGlxtnClientTask(KGlxtnTaskIdFilterAvailable, KGlxIdNone, aClient),
+    iSize(aSize)
+    {
+    TRACER("CGlxtnFilterAvailableTask::CGlxtnFilterAvailableTask()");
+    }
+
+// -----------------------------------------------------------------------------
+// ConstructL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFilterAvailableTask::ConstructL(
+                                        const TArray<TGlxMediaId>& aItemArray)
+    {
+    TRACER("void CGlxtnFilterAvailableTask::ConstructL()");
+    TInt count = aItemArray.Count();
+    for ( TInt i = 0; i < count; i++ )
+        {
+        iIdArray.AppendL(aItemArray[i]);
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnFilterAvailableTask::~CGlxtnFilterAvailableTask() 
+    {
+    TRACER("CGlxtnFilterAvailableTask::~CGlxtnFilterAvailableTask()");
+    delete iFileInfo;
+    iIdArray.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// DoStartL
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnFilterAvailableTask::DoStartL(TRequestStatus& aStatus)
+    {
+    TRACER("TBool CGlxtnFilterAvailableTask::DoStartL()");
+    iIndex = 0;
+
+    GLX_ASSERT_DEBUG( !iFileInfo, Panic( EGlxPanicAlreadyInitialised ),
+                        "iFileInfo not NULL" );
+    iFileInfo = new (ELeave) CGlxtnFileInfo;
+
+    return GetFileInfoL(aStatus);
+    }
+
+// -----------------------------------------------------------------------------
+// DoCancel
+// -----------------------------------------------------------------------------
+//
+void CGlxtnFilterAvailableTask::DoCancel() 
+    {
+    TRACER("void CGlxtnFilterAvailableTask::DoCancel()");
+    Storage()->StorageCancel();
+    }
+
+// -----------------------------------------------------------------------------
+// DoRunL
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnFilterAvailableTask::DoRunL(TRequestStatus& aStatus) 
+    {
+    TRACER("TBool CGlxtnFilterAvailableTask::DoRunL()");
+    TInt result = aStatus.Int();
+    User::LeaveIfError(result);
+
+    TBool active = EFalse;
+
+    switch ( iState )
+        {
+        case EStateFetchingUri:
+            Storage()->IsThumbnailAvailableL(iIdArray[iIndex], *iFileInfo,
+                                                iSize, &aStatus);
+            iState = EStateChecking;
+            active = ETrue;
+            break;
+
+        case EStateChecking:
+            if ( KGlxThumbnailNotAvailable == result )
+                {
+                iIndex++;
+                }
+            else
+                {
+                iIdArray.Remove(iIndex);
+                }
+
+            active = GetFileInfoL(aStatus);
+            break;
+
+        default:
+            GLX_ASSERT_ALWAYS( EFalse, Panic( EGlxPanicIllegalState ),
+                            "CGlxtnFilterAvailableTask: Illegal state" );
+            break;
+        }
+
+    return active; 
+    }
+
+// -----------------------------------------------------------------------------
+// DoRunError
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnFilterAvailableTask::DoRunError(TInt aError)
+    {
+    TRACER("CGlxtnFilterAvailableTask::DoRunError()");
+    Client().FilterAvailableComplete(iIdArray, aError);
+
+    return EFalse;
+    }
+
+// -----------------------------------------------------------------------------
+// GetFileInfoL
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnFilterAvailableTask::GetFileInfoL(TRequestStatus& aStatus)
+    {
+    TRACER("CGlxtnFilterAvailableTask::GetFileInfoL()");
+    if ( iIndex < iIdArray.Count() )
+        {
+        Client().FetchFileInfoL(iFileInfo, iIdArray[iIndex], &aStatus);
+        iState = EStateFetchingUri;
+
+        return ETrue;
+        }
+
+    // Finished checking the array
+    Client().FilterAvailableComplete(iIdArray, KErrNone);
+
+    return EFalse;
+    }