/*

* Copyright (c) 2006-2008 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:  This class updates the status indicator container control

*                in status pane.

*

*/

// SYSTEM INCLUDE FILES

#include <AknIndicatorContainer.h>

#include <AknIndicator.h>

#include "aknstatuspanedatasubscriber.h"

#include <eikspane.h>

#include <avkon.hrh>

#include <AknDef.h>

// USER INCLUDE FILES

#include "aknindicatordataobserver.h"

#include "aknstatuspanedata.h"

#include "AknIncallStatusBubble.h"

/** Value used to specify that an indicator is not shown. */

const TInt KEmpty = 0xFFFFFFFF;

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

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

// CAknIndicatorDataObserver::CAknIndicatorDataObserver

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

// might leave.

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

//

CAknIndicatorDataObserver::CAknIndicatorDataObserver(

    CAknIndicatorContainer* aIndicatorPane )

	{

	iIndicatorPane = aIndicatorPane;

	iIndicatorPane->MopGetObject( iDataSubscriber );

	if ( iDataSubscriber )

		{

		iDataSubscriber->AddObserver( this );

		}

	iFirstUpdate = ETrue;

  	}

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

// Destructor

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

//

CAknIndicatorDataObserver::~CAknIndicatorDataObserver()

	{

	if ( iDataSubscriber )

		{

		iDataSubscriber->RemoveObserver( this );

		}

    }

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

// CAknIndicatorDataObserver::HandleUpdateL

// Update state to UI control.

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

//

void CAknIndicatorDataObserver::HandleUpdateL(

    const TAknStatusPaneStateData& aData )

	{

	if ( !iDataSubscriber )

	    {

		return;

	    }

	TAknIndicatorState state = aData.iIndicatorState;

	TBool indicatorPaneIsInCurrentLayout = ETrue;

	// If this pane is not in current layout, no update.

	// Update happens when status pane layout is changed.

    CEikStatusPaneBase* statusPane = CEikStatusPaneBase::Current();

   	if ( !statusPane ||

   		 !statusPane->PaneCapabilities(

   		    TUid::Uid( EEikStatusPaneUidIndic ) ).IsInCurrentLayout() )

   		{

		indicatorPaneIsInCurrentLayout = EFalse;

   		}

    TBool updateAnimation =

    	( !iDataSubscriber->IsBackground() ||

    	  iDataSubscriber->RefreshLevel() > CAknStatusPaneDataSubscriber::ERefreshLevelMedium );

	// Incall bubble is shown when in foreground and in

	// the very first update (to avoid flicker).

    TBool showIncallBubble = !iDataSubscriber->IsBackground() || iFirstUpdate;

	TBool anyIndicatorChanged = EFalse;

	if ( indicatorPaneIsInCurrentLayout )

		{

		// If indicator does not yet exist, set its state

		// initially to "off" -> indicator gets created.

		for ( TInt j = 0; j < TAknIndicatorState::EMaxVisibleIndicators; j++ )

		    {

		    if ( state.visibleIndicators[j] != KEmpty &&

		    	 !iIndicatorPane->IndicatorExists(

		    	    TUid::Uid( state.visibleIndicators[j] ) ) )

		    	{

		    	iIndicatorPane->SetIndicatorState(

		    	    TUid::Uid( state.visibleIndicators[j] ),

		    	    MAknIndicator::EIndicatorOff,

		    	    EFalse );

		    	}

		    }

		TInt count = iIndicatorPane->iIndicators->Count();

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

		    {

		    CAknIndicator* indicator = iIndicatorPane->iIndicators->At( ii );

		    TInt indicState = indicator->IndicatorState();

		    TInt indicUid   = indicator->Uid().iUid;

		    TBool shownInCurrentLayoutMode = ( indicator->Priority() != -1 );

		    TBool found = EFalse;

		    for ( TInt jj = 0; jj < TAknIndicatorState::EMaxVisibleIndicators; jj++ )

		    	{

		    	if ( state.visibleIndicators[jj] == KEmpty )

		    		{

		    		break;

		    		}

			    else if ( state.visibleIndicators[jj] == indicUid )

		    		{

		    		found = ETrue;

			    	if ( state.visibleIndicatorStates[jj] != indicState &&

			    	     shownInCurrentLayoutMode )

			    		{

		           	    anyIndicatorChanged = ETrue;

						if ( state.visibleIndicatorStates[jj] == MAknIndicator::EIndicatorAnimate )

							{

							if ( updateAnimation )

								{

								// Update animations only in foreground (unless forced)

								indicator->SetIndicatorState( state.visibleIndicatorStates[jj] );

		        	        	indicator->SetAnimateState( iIndicatorPane->iSynchronizingValue );

								}

							else

								{

								// In background just set it on

							   	indicator->SetIndicatorState( MAknIndicator::EIndicatorOn );

								}

							}

						else

							{

							indicator->SetIndicatorState( state.visibleIndicatorStates[jj] );

							}

			    		}

		    		}

		    	}

			// If indicators was not in the list we assume its state to be OFF.

		    if ( !found )

		    	{

				if ( indicState != MAknIndicator::EIndicatorOff )

					{

					anyIndicatorChanged = ETrue;

					indicator->SetIndicatorState( MAknIndicator::EIndicatorOff );

					}

		    	}

		    }

		}

    if ( anyIndicatorChanged )

    	{

    	iIndicatorPane->PrioritizeIndicatorsL();

    	iIndicatorPane->SizeChanged();

		}

	// Incall bubble

	TInt modifiedFlags = state.iIncallBubbleFlags;

	if ( !showIncallBubble )

	    {

		modifiedFlags &= ~CIncallStatusBubble::ESBVisible; // Clear visible bit

	    }

	iIndicatorPane->SetIncallBubbleAllowedInIdle( state.iIncallBubbleAllowedInIdle );

	iIndicatorPane->SetIncallBubbleAllowedInUsual( state.iIncallBubbleAllowedInUsual );

	iIndicatorPane->SetIncallBubbleDisabled( state.iIncallBubbleDisabled );

	iIndicatorPane->SetIncallBubbleFlags( modifiedFlags );

    if ( anyIndicatorChanged || showIncallBubble )

    	{

    	iIndicatorPane->DrawDeferred();

		}

	iFirstUpdate = EFalse;

	}

//  End of File