// Copyright (c) 2006-2009 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:

// XForms functions

//

#include "xmlengdomdefs.h" 

#include <xml/dom/xmlengdocument.h>

#include <xml/dom/xmlengxformsinstancemap.h>

#include <stdapis/libxml2/libxml2_hash.h>

#include <xml/utils/xmlengmem.h>

#include <xml/utils/xmlengxestrings.h>

const TInt KHashTableSize = 10;

// ---------------------------------------------------------------------------

// Initializes internal storage. Leaves created object on cleanup stack.

// @return New CXFormsInstanceMap object.

// @exception Leave on OOM.

// ---------------------------------------------------------------------------

//

EXPORT_C CXmlEngXFormsInstanceMap* CXmlEngXFormsInstanceMap::NewLC() 

    {

    CXmlEngXFormsInstanceMap* instance = new(ELeave) CXmlEngXFormsInstanceMap();

    CleanupStack::PushL(instance);

    instance->ConstructL();

    return instance;

    }

// ---------------------------------------------------------------------------

// Initializes internal storage.

// @return New CXFormsInstanceMap object.

// @exception Leave on OOM.

// ---------------------------------------------------------------------------

//

EXPORT_C CXmlEngXFormsInstanceMap* CXmlEngXFormsInstanceMap::NewL() 

    {

    CXmlEngXFormsInstanceMap* instance = NewLC();

    CleanupStack::Pop(instance);

    return instance;

    }

void CXmlEngXFormsInstanceMap::ConstructL()

    {

    iInternal = xmlHashCreate(KHashTableSize);

    OOM_IF_NULL(iInternal);

    }

// ---------------------------------------------------------------------------

// Destructor. Frees internal storage, but <b>does not</b> free the Document

// instances that were added. These are owned by the caller.

// ---------------------------------------------------------------------------

//

EXPORT_C CXmlEngXFormsInstanceMap::~CXmlEngXFormsInstanceMap() 

    {

    xmlHashFree(

        static_cast<xmlHashTablePtr>(iInternal), 

        (xmlHashDeallocator) NULL);

    }

// ---------------------------------------------------------------------------

// Adds entry to container. Document is associated with a name. If an entry

// with the same name already exists this method does nothing.

// @param[in] aInstance   The DOM document to be stored.

// @param[in] aName       The name that is associated with the document.

// ---------------------------------------------------------------------------

//

EXPORT_C void CXmlEngXFormsInstanceMap::AddEntryL(

    RXmlEngDocument& aInstance, 

    const TDesC8& aName ) 

    {

    xmlChar* name = xmlCharFromDesC8L(aName);

    if ( 0 > xmlHashAddEntry(

                static_cast<xmlHashTablePtr>(iInternal), 

                name, 

                INTERNAL_DOCPTR(aInstance))

        )

        {

        delete name;

        TEST_OOM_FLAG;

        // else: there is already instance with such name

        }

    else

        {

        delete name;

        }

    }

// ---------------------------------------------------------------------------

// Removes an entry from the container. If the entry does not exists

// method does nothing. Note that document is <b>not freed</b>.

// @param[in] aName   Name of entry to remove. 

// ---------------------------------------------------------------------------

//

EXPORT_C void CXmlEngXFormsInstanceMap::RemoveEntryL(

    const TDesC8& aName ) 

    {

    xmlChar* name = xmlCharFromDesC8L(aName);

    xmlHashRemoveEntry(

        static_cast<xmlHashTablePtr>(iInternal), 

        name, 

        (xmlHashDeallocator) NULL);

    delete name;

    }