sl@0: /*
sl@0: * Copyright (c) 2004-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include <f32file.h>
sl@0: #include <apmstd.h>
sl@0: 
sl@0: #include "contentIterator.h"
sl@0: #include "virtualpath.h"
sl@0: #include "content.h"
sl@0: #include "EmbeddedcontentIteratorBase.h"
sl@0: #include "EmbeddedObject.h"
sl@0: 
sl@0: using namespace ContentAccess;
sl@0: 
sl@0: 
sl@0: CEmbeddedContentIteratorBase* CEmbeddedContentIteratorBase ::NewL(CContent& aContent, TBool aRecursive, const TDesC8& aMimeType)
sl@0: 	{
sl@0: 	CEmbeddedContentIteratorBase* self = new (ELeave) CEmbeddedContentIteratorBase(aContent, aRecursive, aMimeType);
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: void CEmbeddedContentIteratorBase::ConstructL()
sl@0: 	{
sl@0: 	// populate the array with the items at this level of the content file
sl@0: 	iContent.GetEmbeddedObjectsL(iEmbeddedContentObjects, EContentObject);
sl@0: 	iContent.GetEmbeddedObjectsL(iEmbeddedContainerObjects, EContainerObject);
sl@0: 
sl@0: 	// Find the Next,  (ie. first content object)
sl@0: 	// This will leave if there is no object
sl@0: 	User::LeaveIfError(Next());
sl@0: 	}
sl@0: 
sl@0: CEmbeddedContentIteratorBase::CEmbeddedContentIteratorBase(CContent& aContent, TBool aRecursive, const TDesC8& aMimeType) 
sl@0: 	: iContent(aContent), iRecursive(aRecursive), iMimeType(aMimeType)
sl@0: 	{
sl@0: 	iContentIndex = 0;
sl@0: 	iContainerIndex = 0;
sl@0: 	}
sl@0: 
sl@0: CEmbeddedContentIteratorBase::~CEmbeddedContentIteratorBase()
sl@0: 	{
sl@0: 	delete iSubIterator;
sl@0: 
sl@0: 	// Clear array 
sl@0: 	iEmbeddedContainerObjects.Close();
sl@0: 	iEmbeddedContentObjects.Close();
sl@0: 	}	
sl@0: 
sl@0: CEmbeddedObject& CEmbeddedContentIteratorBase::EmbeddedObject()
sl@0: 	{
sl@0: 	// The next pointer is currently on an object inside the subiterator
sl@0: 	if(iSubIterator)
sl@0: 		{
sl@0: 		return iSubIterator->EmbeddedObject();
sl@0: 		}
sl@0: 	else
sl@0: 		{	
sl@0: 		return *iEmbeddedContentObjects[iContentIndex - 1];
sl@0: 		}
sl@0: 	}
sl@0: 		
sl@0: TInt CEmbeddedContentIteratorBase::Next()
sl@0: 	{
sl@0: 	// Must figure out if there's a constant for this
sl@0: 	TBuf8 <KMaxDataTypeLength> mimeType;
sl@0: 	TInt ret = KErrNotFound;
sl@0: 
sl@0: 	// If we are already looking into a container, try finding the next in there
sl@0: 	if(iSubIterator)
sl@0: 		{
sl@0: 		ret = iSubIterator->Next();
sl@0: 		if(ret == KErrNone)
sl@0: 			{
sl@0: 			return ret;
sl@0: 			}
sl@0: 		else 
sl@0: 			{
sl@0: 			// come back to our level
sl@0: 			iContent.CloseContainer();
sl@0: 
sl@0: 			// Delete sub-iterator
sl@0: 			delete iSubIterator;
sl@0: 			iSubIterator = NULL;
sl@0: 			}
sl@0: 		}
sl@0: 	
sl@0: 
sl@0: 	// Find content objects inside this container
sl@0: 	for( ; iContentIndex < iEmbeddedContentObjects.Count(); iContentIndex++)
sl@0: 		{
sl@0: 		// if we don't care about mime type, this content object will do
sl@0: 		if(iMimeType.Length() == 0)
sl@0: 			{
sl@0: 			// make sure next time we look at the next item in our array
sl@0: 			iContentIndex++;
sl@0: 			return KErrNone;
sl@0: 			}
sl@0: 
sl@0: 		// See if the content object has the right mime type that we are looking for
sl@0: 		mimeType.Copy(iEmbeddedContentObjects[iContentIndex]->MimeType());
sl@0: 		if(iMimeType == mimeType)
sl@0: 			{
sl@0: 			// make sure next time we look at the next item in our array
sl@0: 			iContentIndex++;
sl@0: 			return KErrNone;
sl@0: 			}
sl@0: 		// otherwise continue to next iteration, for loop incrementes iContentIndex		
sl@0: 		}		
sl@0: 	
sl@0: 	// Free memory allocated for content objects
sl@0: 	if(iContentIndex)
sl@0: 		{
sl@0: 		iEmbeddedContentObjects.ResetAndDestroy();
sl@0: 		iContentIndex = 0;
sl@0: 		}
sl@0: 
sl@0: 	// Find content objects within nested containers
sl@0: 	for( ; iContainerIndex < iEmbeddedContainerObjects.Count(); iContainerIndex++)
sl@0: 		{
sl@0: 		// If it's a container look inside 
sl@0: 		iContent.OpenContainer(iEmbeddedContainerObjects[iContainerIndex]->UniqueId());
sl@0: 		TRAPD(err, iSubIterator = CEmbeddedContentIteratorBase::NewL(iContent, iRecursive, iMimeType));
sl@0: 		if(err == KErrNone)
sl@0: 			{
sl@0: 			// must have found something inside
sl@0: 			// make sure next time we search at the next item in our array
sl@0: 			iContainerIndex++;
sl@0: 			return KErrNone;
sl@0: 			}
sl@0: 		// otherwise continue to next iteration
sl@0: 		}
sl@0: 
sl@0: 	// must be at the end of the array, ie. can't find any more content objects
sl@0: 	return KErrNotFound;
sl@0: 	}
sl@0: 
sl@0: