/*

* Copyright (c) 2002-2004 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:  View control adapter

*

*/

// System includes

// User includes

#include "xnappuiadapter.h"

#include "xnuiengine.h"

#include "xnnodepluginif.h"

#include "xnnode.h"

#include "xndomdocument.h"

#include "xndomnode.h"

#include "xnproperty.h"

#include "xnviewcontroladapter.h"

// Constants

// ============================ LOCAL FUNCTIONS ================================

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

// ResetGrabbingL

// Removes recursively grabbing controls

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

//

static void ResetGrabbingL( CXnControlAdapter* aControl, 

    const TPointerEvent& aEvent ) 

    {       

    if ( aControl )

        {

        CCoeControl* grabber( aControl->GrabbingComponent() );

        if ( grabber )

            {

            // cancel longtap detector before reset grabbing.

            CAknLongTapDetector* detector = aControl->LongTapDetector();

            if ( detector && detector->IsActive() )

                {

                detector->Cancel();

                }

            grabber->IgnoreEventsUntilNextPointerUp();

            aControl->CCoeControl::HandlePointerEventL( aEvent );

            CXnControlAdapter* adapter = 

                dynamic_cast< CXnControlAdapter* >( grabber );

            ResetGrabbingL( adapter, aEvent );

            }        

        }    

    }

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

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

// CXnViewControlAdapter::NewL

// Symbian static 1st phase constructor

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

//

CXnViewControlAdapter* CXnViewControlAdapter::NewL( CXnNodePluginIf& aNode )

    {

	CXnViewControlAdapter* self = new( ELeave ) CXnViewControlAdapter( aNode );

    CleanupStack::PushL( self );

    self->ConstructL( aNode );

    CleanupStack::Pop( self );

    return self;	

    }

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

// CXnViewControlAdapter::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CXnViewControlAdapter::ConstructL( CXnNodePluginIf& aNode )

    {

    CreateWindowL();

    CXnControlAdapter::ConstructL( aNode );

    if( Window().SetTransparencyAlphaChannel() == KErrNone )      

        {       

        Window().SetBackgroundColor( ~0 );       

        }   

    Window().SetPointerGrab( EFalse );

    EnableDragEvents();

    ActivateL();

    SetComponentsToInheritVisibility( ETrue );

    iAppUi.UiStateListener().AddObserver( *this );

    // By default all views are invisible during construction phase    

    CXnDomStringPool* sp( aNode.Node().DomNode()->StringPool() );

    CXnProperty* prop = CXnProperty::NewL(

        XnPropertyNames::style::common::KDisplay, 

        XnPropertyNames::style::common::display::KNone,

        CXnDomPropertyValue::EString, *sp );

    CleanupStack::PushL( prop );    

    aNode.SetPropertyWithoutNotificationL( prop );

    CleanupStack::Pop( prop );    

    }

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

// CXnViewControlAdapter::CXnViewControlAdapter

// C++ default constructor

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

//

CXnViewControlAdapter::CXnViewControlAdapter( CXnNodePluginIf& aNode ) 

    : iNode( aNode ), iAppUi( static_cast< CXnAppUiAdapter& >( *iAvkonAppUi ) )    

    {    

    }

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

// CXnViewControlAdapter::~CXnViewControlAdapter

// C++ destructor

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

//

CXnViewControlAdapter::~CXnViewControlAdapter()

    {

    iAppUi.UiStateListener().RemoveObserver( *this );      

    }

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

// CXnViewControlAdapter::MakeVisible

//

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

// 

void CXnViewControlAdapter::MakeVisible( TBool aVisible )

    {

    if ( aVisible == IsVisible() )

        {

        return;

        }

    if ( aVisible )

        {

        if ( !iAppUi.UiEngine().IsEditMode() )

            {

            Window().SetPointerGrab( ETrue );

            }

        }

    else

        {

        Window().SetPointerGrab( EFalse );

        ResetGrabbing();

        }

    CCoeControl::MakeVisible( aVisible );    

    }

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

// CXnViewControlAdapter::Draw

//

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

//

void CXnViewControlAdapter::Draw( const TRect& aRect ) const

    {    

    SystemGc().Clear( aRect );        

    }

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

// CXnViewControlAdapter::HandlePointerEventL

//

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

//

void CXnViewControlAdapter::HandlePointerEventL( 

    const TPointerEvent& aPointerEvent )

    {    

    if ( iForegroundStatus != EBackground )

        {

        iAppUi.UiEngine().DisableRenderUiLC();

        CXnControlAdapter::HandlePointerEventL( aPointerEvent );

        iAppUi.UiEngine().RenderUIL();

        CleanupStack::PopAndDestroy();    

        }

    }

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

// CXnViewControlAdapter::ResetGrabbing()

// 

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

//

void CXnViewControlAdapter::ResetGrabbing()

    {

    TPointerEvent event;

    event.iModifiers = 0;

    event.iPosition = TPoint();

    event.iParentPosition = TPoint();

    event.iType = TPointerEvent::EButton1Up;

    TRAP_IGNORE( ResetGrabbingL( this, event ) );        

    }

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

// CXnViewControlAdapter::NotifyForegroundChanged()

// 

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

//

void CXnViewControlAdapter::NotifyForegroundChanged( TForegroundStatus aStatus )

    {

    iForegroundStatus = aStatus;

    if ( aStatus == EBackground || aStatus == EPartialForeground )

        {

        ResetGrabbing();

        }

    }

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

// CXnViewControlAdapter::NotifyLightStatusChanged()

//  

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

//

void CXnViewControlAdapter::NotifyLightStatusChanged( TBool /*aLightsOn*/ )

    {    

    }

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

// CXnViewControlAdapter::NotifyInCallStateChaged()

// 

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

//

void CXnViewControlAdapter::NotifyInCallStateChaged( TBool /*aInCall*/ )

    {    

    }

// End of file