--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/viewframework/views/viewbase/src/glxtitlefetcher.cpp Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,200 @@
+/*
+* 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: Title fetcher
+*
+*/
+
+
+
+
+
+// INCLUDE FILES
+#include "glxtitlefetcher.h"
+
+#include <mpxcollectionpath.h>
+#include <mpxmediageneraldefs.h>
+#include <mglxmedialist.h>
+#include <glxattributecontext.h>
+#include <glxuistd.h>
+#include "glxlog.h"
+#include "glxtracer.h"
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ---------------------------------------------------------------------------
+//
+CGlxTitleFetcher::CGlxTitleFetcher(MGlxTitleFetcherObserver& aObserver,
+ CMPXCollectionPath* aPath) :
+ iObserver(aObserver), iPath(aPath)
+ {
+ TRACER("CGlxTitleFetcher::CGlxTitleFetcher");
+ }
+
+// ---------------------------------------------------------------------------
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------------------------
+//
+
+void CGlxTitleFetcher::ConstructL()
+ {
+ TRACER("CGlxTitleFetcher::ConstructL");
+ // Go back one level to obtain the ID
+ iPathId = iPath->Id();
+ // Go back another level from which to create a media list containing
+ // this path
+ iPath->Back();
+
+ iBackMediaList = MGlxMediaList::InstanceL(*iPath);
+
+ /// @todo: This idSpaceId must be calculated properly
+ TGlxIdSpaceId idSpaceId = iBackMediaList->IdSpaceId(0);
+
+ TGlxMediaId id(iPathId);
+ TBool requestAttributes = ETrue;
+ TInt index = iBackMediaList->Index(idSpaceId, id);
+
+ if ( index != KErrNotFound )
+ {
+ const TGlxMedia& item = iBackMediaList->Item(index);
+ const CGlxMedia* media = item.Properties();
+
+ // get the Title from the attribute if it is already present
+ if (media && media->IsSupported(KMPXMediaGeneralTitle)
+ && index != KErrNotFound)
+ {
+ const TDesC& title = media->ValueText(KMPXMediaGeneralTitle);
+ // notify the observer
+ iObserver.HandleTitleAvailableL(title);
+ requestAttributes = EFalse;
+ }
+ }
+
+ if ( requestAttributes )
+ {
+ // Otherwise add a context setting range to cover all items
+ iContext = CGlxDefaultAttributeContext::NewL();
+ iContext->SetRangeOffsets(10000,10000);
+ iContext->AddAttributeL(KMPXMediaGeneralTitle);
+ // Add the context at a high priority
+ iBackMediaList->AddContextL( iContext,
+ KGlxFetchContextPriorityTitleFetcher );
+ // Set self as observer
+ iBackMediaList->AddMediaListObserverL(this);
+ }
+ }
+
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CGlxTitleFetcher* CGlxTitleFetcher::NewL(MGlxTitleFetcherObserver& aObserver,
+ CMPXCollectionPath* aPath)
+ {
+ CGlxTitleFetcher* self = new (ELeave) CGlxTitleFetcher(aObserver, aPath);
+ CleanupStack::PushL(self);
+ self->ConstructL();
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CGlxTitleFetcher::~CGlxTitleFetcher()
+ {
+ TRACER("CGlxTitleFetcher::~CGlxTitleFetcher ()");
+
+ if(iBackMediaList)
+ {
+ if(iContext)
+ {
+ iBackMediaList->RemoveContext(iContext);
+ delete iContext;
+ }
+ iBackMediaList->RemoveMediaListObserver(this);
+ iBackMediaList->Close();
+ }
+
+ }
+// ---------------------------------------------------------------------------
+// CGlxTitleFetcher::HandleItemAddedL
+// ---------------------------------------------------------------------------
+//
+void CGlxTitleFetcher::HandleItemAddedL(TInt aStartIndex, TInt aEndIndex,
+ MGlxMediaList* aList)
+ {
+ TRACER("CGlxTitleFetcher::HandleItemAddedL ()");
+ if(aList == iBackMediaList)
+ {
+ for(TInt index = aStartIndex;index <= aEndIndex;index++)
+ // Is it the item (path) that we want
+ {
+ if(aList->Item(index).Id().Value() == (TUint32)iPathId)
+ {
+ const TGlxMedia& item = aList->Item(index);
+ const CGlxMedia* media = item.Properties();
+ // get the Title from the attribute
+ if (media && media->IsSupported(KMPXMediaGeneralTitle))
+ {
+ const TDesC& title = media->ValueText(KMPXMediaGeneralTitle);
+ // notify the observer
+ iObserver.HandleTitleAvailableL(title);
+ iBackMediaList->RemoveContext(iContext);
+ delete iContext;
+ iContext = NULL;
+ }
+ }
+ }
+ }
+ }
+// ---------------------------------------------------------------------------
+// CGlxTitleFetcher::HandleAttributesAvailableL
+// ---------------------------------------------------------------------------
+//
+void CGlxTitleFetcher::HandleAttributesAvailableL(TInt aItemIndex,
+ const RArray<TMPXAttribute>& /*aAttributes*/, MGlxMediaList* aList)
+ {
+ TRACER("CGlxTitleFetcher::HandleAttributesAvailableL ()");
+ // Is it the list that we want
+ if(aList == iBackMediaList)
+ {
+ // Is it the item (path) that we want
+ if(aList->Item(aItemIndex).Id().Value() == (TUint32)iPathId)
+ {
+ const TGlxMedia& item = aList->Item(aItemIndex);
+ const CGlxMedia* media = item.Properties();
+ // get the Title from the attribute
+ if (media && media->IsSupported(KMPXMediaGeneralTitle))
+ {
+ const TDesC& title = media->ValueText(KMPXMediaGeneralTitle);
+ // notify the observer
+ iObserver.HandleTitleAvailableL(title);
+ iBackMediaList->RemoveContext(iContext);
+ delete iContext;
+ iContext = NULL;
+
+ }
+ }
+ }
+ }
+
+
+
+// End of File