/*

* Copyright (c) 2002-2005 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:  Layout calculation and UI rendering mechanism implementations.

*

*/

// User includes

#include "xnuiengineappif.h"

#include "xnuiengine.h"

#include "xnnode.h"

#include "xnodt.h"

#include "xndomdocument.h"

#include "xnpointerarray.h"

#include "xneditor.h"

#include "xnnodeappif.h"

#include "xnviewdata.h"

// ============================ MEMBER FUNCTIONS ===============================

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

// TXnUiEngineAppIf::TXnUiEngineAppIf

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

TXnUiEngineAppIf::TXnUiEngineAppIf( CXnUiEngine& aUiEngine )

    {

    iUiEngine = &aUiEngine;

    }

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

// TXnUiEngineAppIf::RootNode

// Forwards the call to the ui engine implementation

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

//

EXPORT_C CXnNodeAppIf& TXnUiEngineAppIf::RootNodeL()

    {

    return iUiEngine->RootNode()->AppIfL();

    }

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

// TXnUiEngineAppIf::FindNodeByIdL

// Forwards the call to the ui engine implementation

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

//

EXPORT_C CXnNodeAppIf* TXnUiEngineAppIf::FindNodeByIdL(

    const TDesC& aNodeId,

    const TDesC& aNamespace )

    {

    CXnNode* node( iUiEngine->FindNodeByIdL( aNodeId, aNamespace ) );

    if ( node )

        {

        return &( node->AppIfL() );

        }

    return NULL;

    }

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

// TXnUiEngineAppIf::FindNodeByIdL

// Forwards the call to the ui engine implementation

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

//

EXPORT_C CXnNodeAppIf* TXnUiEngineAppIf::FindNodeByIdL(

    const TDesC8& aNodeId,

    const TDesC8& aNamespace )

    {

    CXnNode* node( iUiEngine->FindNodeByIdL( aNodeId, aNamespace ) );

    if ( node )

        {

        return &( node->AppIfL() );

        }

    return NULL;

    }

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

// TXnUiEngineAppIf::FindNodeByClassL

// Forwards the call to the ui engine implementation

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

//

EXPORT_C RPointerArray< CXnNodeAppIf > TXnUiEngineAppIf::FindNodeByClassL(

    const TDesC& aClassId, const TDesC& aNamespace )

    {

    CXnPointerArray* array = iUiEngine->FindNodeByClassL(

        aClassId, aNamespace );

    CleanupStack::PushL( array );

    RPointerArray< CXnNodeAppIf > interfaceArray;

    CleanupClosePushL( interfaceArray );

    const TInt count = array->Container().Count();

    interfaceArray.ReserveL( count );

    for ( TInt i = 0; i < count; ++i )

        {

        CXnNode* node = static_cast< CXnNode* >( array->Container()[i] );

        // Append cannot fail because ReserveL call before this loop has

        // allocated the array buffer

        interfaceArray.Append( &( node->AppIfL() ) );

        }

    CleanupStack::Pop( &interfaceArray );

    CleanupStack::PopAndDestroy( array );

    return interfaceArray;

    }

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

// CXnUiEngine::FindNodeByClassL

// Forwards the call to the ui engine implementation

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

//

EXPORT_C RPointerArray< CXnNodeAppIf > TXnUiEngineAppIf::FindNodeByClassL(

    const TDesC8& aClassId, const TDesC8& aNamespace )

    {

    CXnPointerArray* array = iUiEngine->FindNodeByClassL(

        aClassId, aNamespace );

    CleanupStack::PushL( array );

    RPointerArray< CXnNodeAppIf > interfaceArray;

    CleanupClosePushL( interfaceArray );

    const TInt count = array->Container().Count();

    interfaceArray.ReserveL( count );

    for ( TInt i = 0; i < count; ++i )

        {

        CXnNode* node = static_cast< CXnNode* >( array->Container()[i] );

        // Append cannot fail because ReserveL call before this loop has

        // allocated the array buffer

        interfaceArray.Append( &( node->AppIfL() ) );

        }

    CleanupStack::Pop( &interfaceArray );

    CleanupStack::PopAndDestroy( array );

    return interfaceArray;

    }

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

// CXnUiEngine::FindContentSourceNodesL

// Forwards the call to the ui engine implementation

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

//

EXPORT_C RPointerArray< CXnNodeAppIf > TXnUiEngineAppIf::FindContentSourceNodesL(

    const TDesC8& aNamespace )

    {   

    CXnPointerArray* array = iUiEngine->FindContentSourceNodesL( aNamespace );

    CleanupStack::PushL( array );

    RPointerArray< CXnNodeAppIf > interfaceArray;

    CleanupClosePushL( interfaceArray );

    const TInt count = array->Container().Count();

    interfaceArray.ReserveL( count );

    for ( TInt i = 0; i < count; i++ )

        {

        CXnNode* node = static_cast< CXnNode* >( array->Container()[i] );

        // Append cannot fail because ReserveL call before this loop has

        // allocated the array buffer

        interfaceArray.Append( &( node->AppIfL() ) );    

        }

    CleanupStack::Pop( &interfaceArray );

    CleanupStack::PopAndDestroy( array );

    return interfaceArray;    

    }

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

// TXnUiEngineAppIf::RenderUIL

// Forwards the call to the ui engine implementation

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

//

EXPORT_C void TXnUiEngineAppIf::RenderUIL( CXnNodeAppIf* aNode )

    {

    CXnNode* node = NULL;

    if ( aNode != NULL )

        {

        node = &( aNode->Node() );

        }

    iUiEngine->RenderUIL( node );

    }

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

// TXnUiEngineAppIf::StringPool

// Forwards the call to the ui engine implementation

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

//

EXPORT_C CXnDomStringPool& TXnUiEngineAppIf::StringPool()

    {

    return *iUiEngine->ODT()->DomDocument().StringPool();

    }

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

// TXnUiEngineAppIf::ActiveView

// Return the active view

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

//

EXPORT_C CXnNodeAppIf* TXnUiEngineAppIf::ActiveView()

    {

    CXnNodeAppIf* ret( NULL );

    TRAP_IGNORE( ret = &( iUiEngine->ActiveView()->AppIfL() ) );

    return ret;

    }

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

// TXnUiEngineAppIf::RefreshMenuL

// Refresh current menu

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

//

EXPORT_C void TXnUiEngineAppIf::RefreshMenuL()

    {

    iUiEngine->RefreshMenuL();

    }

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

// TXnUiEngineAppIf::IsMenuDisplaying

// Checks whether the menu is displaying or not.

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

//

EXPORT_C TBool TXnUiEngineAppIf::IsMenuDisplaying()

    {

    return iUiEngine->IsMenuDisplaying();

    }

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

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

//

EXPORT_C TInt TXnUiEngineAppIf::GetPluginNodeArrayL(

    RPointerArray< CXnNodeAppIf >& aArray )

    {

    aArray.Reset();

    RPointerArray< CXnNode >* plugins = iUiEngine->Plugins();

    if ( !plugins )

        {

        return 0;

        }

    TInt count( plugins->Count() );

    for ( TInt i = 0; i < count; ++i )

        {

        CXnNode* tmp = ( *plugins )[i];

        aArray.AppendL( &( tmp->AppIfL() ) );

        }

    return count;

    }

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

// TXnUiEngineAppIf::FocusedNode

// Gets the currently focused node

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

//

EXPORT_C CXnNodeAppIf* TXnUiEngineAppIf::FocusedNode()

    {

    CXnNode* focused( iUiEngine->FocusedNode() );

    CXnNodeAppIf* ret( NULL );

    if ( focused )

        {

        TRAP_IGNORE( ret = &( focused->AppIfL() ) );

        }

    return ret;

    }

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

// TXnUiEngineAppIf::IsEditMode

// Returns ETrue if the current mode is edit, otherwise EFalse.

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

//

EXPORT_C TBool TXnUiEngineAppIf::IsEditMode()

    {

    return ( iUiEngine->IsEditMode() );

    }

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

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

//

EXPORT_C void TXnUiEngineAppIf::SetUiEngine( CXnUiEngine* aUiEngine )

    {

    iUiEngine = aUiEngine;

    }

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

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

//

EXPORT_C TInt TXnUiEngineAppIf::GetThemeResource(

    const TDesC& aPath, RFile& aFile )

    {

    return iUiEngine->GetThemeResource( aPath, aFile );

    }

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

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

//

EXPORT_C TBool TXnUiEngineAppIf::WidgetsVisible() const

    {

    return iUiEngine->Editor()->WidgetsVisible();

    }