/*

* Copyright (c) 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:  Implementation of the class CFMRadioScanLocalStationsContainer

*

*/

// INCLUDE FILES

#include <e32math.h>

#include <AknsSkinInstance.h>

#include <AknsUtils.h>

#include <AknsDrawUtils.h>

#include <AknsBasicBackgroundControlContext.h>

#include <akntoolbar.h>

#include <gulutil.h> 

#include <w32std.h>

#include <fmradio.rsg>

#include <StringLoader.h>

#include <eiklabel.h>

#include <AknWaitDialog.h>

#include <eikclbd.h> 

#include <AknIconArray.h>

#include <gulicon.h> 

#include <fmradiouids.h>

#if defined __SERIES60_HELP || defined FF_S60_HELPS_IN_USE

#include "radio.hlp.hrh"

#endif

#include "fmradioapp.h"

#include "fmradioappui.h"

#include "fmradioscanlocalstationscontainer.h"

#include "fmradioscanlocalstationsview.h"

// CONSTANTS

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

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

// CFMRadioScanLocalStationsContainer::CFMRadioScanLocalStationsContainer

// Default constructor

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

//

CFMRadioScanLocalStationsContainer::CFMRadioScanLocalStationsContainer( CRadioEngine& aRadioEngine ):

	iRadioEngine( aRadioEngine )

	{	

	}

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

// CFMRadioScanLocalStationsContainer::NewL

// Two-phase constructor of CFMRadioScanLocalStationsContainer

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

//

CFMRadioScanLocalStationsContainer* CFMRadioScanLocalStationsContainer::NewL( const TRect& aRect, CRadioEngine& aRadioEngine )

    {

    CFMRadioScanLocalStationsContainer* self = new (ELeave) CFMRadioScanLocalStationsContainer( aRadioEngine );

    CleanupStack::PushL( self );

    self->ConstructL( aRect );

    CleanupStack::Pop( self );

    return self;

    }

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

// CFMRadioScanLocalStationsContainer::ConstructL

// EPOC two phased constructor

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

//

void CFMRadioScanLocalStationsContainer::ConstructL( const TRect& aRect )

    {

    // check the layout orientation

    CFMRadioAppUi* appUi = static_cast<CFMRadioAppUi*>( iCoeEnv->AppUi() );

    TBool isLandscape = appUi->IsLandscapeOrientation();

    CreateWindowL();

    iSkin = AknsUtils::SkinInstance();

	// Instantiate a listbox for the channel list

	iChannelList = new ( ELeave ) CAknSingleNumberStyleListBox();

	iControls.Append( iChannelList );

	iChannelList->SetContainerWindowL( *this );

	iChannelList->SetListBoxObserver( this );

	iChannelList->ConstructL( this, CEikListBox::ELoopScrolling | EAknListBoxSelectionList ); // Looped list

	// Create scrollbars

	iChannelList->CreateScrollBarFrameL( ETrue );

    // Array for channels

    iChannelItemArray = new( ELeave ) CDesCArrayFlat( KMaxNumberOfChannelListItems );

    InitializeChannelListL();

    SetRect( aRect ); 

    CFMRadioScanLocalStationsView* searchStationsView = static_cast<CFMRadioScanLocalStationsView*> ( appUi->View( KFMRadioScanLocalStationsViewId ) );

    ActivateL();

    }

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

// CFMRadioScanLocalStationsContainer::~CFMRadioScanLocalStationsContainer

// Class destructor

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

//

CFMRadioScanLocalStationsContainer::~CFMRadioScanLocalStationsContainer()

    {

    iControls.ResetAndDestroy();

    delete iChannelItemArray;

    }

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

// CFMRadioScanLocalStationsContainer::InitializeChannelListL

// Create the channel list (initially all spots are set as empty)

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

//

void CFMRadioScanLocalStationsContainer::InitializeChannelListL()

	{

	iChannelList->Reset();

	iChannelItemArray->Reset();

	iChannelList->ScrollBarFrame()->SetScrollBarVisibilityL( CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto );

    // Pass the array to the listbox model and set the ownership type

    iChannelList->Model()->SetItemTextArray( (MDesCArray*) iChannelItemArray );

    iChannelList->Model()->SetOwnershipType( ELbmDoesNotOwnItemArray );

    iChannelList->HandleItemAdditionL();

	DrawDeferred();

	}

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

// CFMRadioScanLocalStationsContainer::UpdateChannelListContentL

// Update the content of the channel at aIndex with the

// values specified

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

//

void CFMRadioScanLocalStationsContainer::UpdateChannelListContentL( TInt aIndex, const TDesC& aInfoText, TInt aChannelFrequency, TBool aNowPlaying, TBool aInfoTextPlacement )

	{

    TBuf<KLengthOfChannelItemString> textChannelItem;

    TBuf<KLengthOfChIndexStringChList> textChIndex;

    TBuf<KLengthOfChannelItemIconIndexString> textChIconIndex;

    //textChIndex.Format( KChIndexFormatChList, aIndex+1 ); // One over index

    textChIndex.SetLength( 0 );

    textChIconIndex.Format( KChIconIndexFormatChList, KNowPlayingIconIndexChList ) ;

	//Update to display Devnagari numbers for Text Index.

   	//AknTextUtils::LanguageSpecificNumberConversion(textChIndex);

    textChannelItem.Append( textChIndex );

    textChannelItem.Append( KColumnListSeparator );

    TReal frequency = static_cast<TReal>( aChannelFrequency / static_cast<TReal>( KHzConversionFactor ));

    // Gets locale decimal separator automatically

    TRealFormat format(KFrequencyMaxLength, iRadioEngine.DecimalCount() );

    TBuf<30> frequencyString;

    frequencyString.Num( frequency, format );

    HBufC* listItemString = NULL;             

    if ( aInfoTextPlacement ) // frequency and PS name

        {

        const TInt granularity = 2;

        CDesCArray* stringsArray = new ( ELeave ) CDesCArrayFlat( granularity );

        CleanupStack::PushL( stringsArray );

        stringsArray->AppendL( frequencyString );

        stringsArray->AppendL( aInfoText );

        listItemString = StringLoader::LoadL( R_QTN_FMRADIO_SINGLE_FREQ_NAME, *stringsArray, iEikonEnv );

        CleanupStack::PopAndDestroy( stringsArray );

        CleanupStack::PushL( listItemString );

        }

    else // frequency

        {

        listItemString = StringLoader::LoadLC( R_QTN_FMRADIO_SINGLE_FREQ, frequencyString, iEikonEnv );

        }

    // Update for display of Hindi Devnagari Numbers

    TPtr listItemStringPtr = listItemString->Des();

    AknTextUtils::LanguageSpecificNumberConversion( listItemStringPtr );

    textChannelItem.Append( *listItemString );

    CleanupStack::PopAndDestroy( listItemString );

    // Set 'Now Playing' icon to the channel item

    textChannelItem.Append( KColumnListSeparator );

    if ( aNowPlaying )

	    {	    

    	textChannelItem.Append( textChIconIndex );	

	    }

    if( aIndex <= ( iChannelItemArray->Count() - 1 ) )

    	{

    	iChannelItemArray->Delete( aIndex );

        iChannelList->HandleItemRemovalL();

        iChannelItemArray->InsertL( aIndex, textChannelItem );

    	}

    else

    	{

        iChannelItemArray->AppendL( textChannelItem );

    	}

    iChannelList->HandleItemAdditionL(); // Update list

    iChannelList->UpdateScrollBarsL();

	iChannelList->DrawDeferred();

	}

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

// CFMRadioScanLocalStationsContainer::InsertScannedChannelToListL

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

//

void CFMRadioScanLocalStationsContainer::InsertScannedChannelToListL( TInt aIndex, TInt aChannelFrequency )

    {

    TBuf<KLengthOfChannelItemString> textChannelItem;

    TBuf<KLengthOfChIndexStringChList> textChIndex;

    textChannelItem.Append( textChIndex );

    textChannelItem.Append( KColumnListSeparator );

    TReal frequency = static_cast<TReal>( aChannelFrequency / static_cast<TReal>( KHzConversionFactor ));

    // Gets locale decimal separator automatically

    TRealFormat format(KFrequencyMaxLength, iRadioEngine.DecimalCount() );

    TBuf<30> frequencyString;

    frequencyString.Num( frequency, format );

    HBufC* listItemString = listItemString = StringLoader::LoadLC( R_QTN_FMRADIO_SINGLE_FREQ, frequencyString, iEikonEnv );

    // Update for display of Hindi Devnagari Numbers

    TPtr listItemStringPtr = listItemString->Des();

    AknTextUtils::LanguageSpecificNumberConversion( listItemStringPtr );

    textChannelItem.Append( *listItemString );

    CleanupStack::PopAndDestroy( listItemString );

    // Set 'Now Playing' icon to the channel item

    textChannelItem.Append( KColumnListSeparator );

    if ( aIndex <= ( iChannelItemArray->Count() - 1 ) )

        {

        iChannelItemArray->InsertL( aIndex, textChannelItem );

        }

    else

        {

        iChannelItemArray->AppendL( textChannelItem );

        }    

    iChannelList->HandleItemAdditionL(); // Update list

    iChannelList->UpdateScrollBarsL();

    iChannelList->DrawDeferred();

    }

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

// CFMRadioScanLocalStationsContainer::RemoveChannelListContentL

// 

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

//

void CFMRadioScanLocalStationsContainer::RemoveChannelListContentL( TInt aIndex )

    {

    if ( aIndex < iChannelItemArray->Count() )

        {

        iChannelItemArray->Delete( aIndex );

        iChannelList->HandleItemRemovalL();

        iChannelList->UpdateScrollBarsL();

        TInt channelCount = iChannelItemArray->Count();

        // check if the last channel is saved and update current item

        if ( aIndex == channelCount && channelCount > 0 )

            {

            iChannelList->SetCurrentItemIndex( channelCount - 1 );

            }

        iChannelList->DrawDeferred();

        }

    }

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

// CFMRadioScanLocalStationsContainer::UpdateNowPlayingIconL

// Displays 'Now Playing' icon in the current selected channel item.

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

//

void CFMRadioScanLocalStationsContainer::UpdateNowPlayingIconL( TInt aNewIndex, TInt aOldIndex )

    {

    HideNowPlayingIconL( aOldIndex, EFalse );

    if ( aNewIndex >= 0 && aNewIndex < iChannelItemArray->Count() )

        {

        TBuf<KLengthOfChannelItemIconIndexString> textChIconIndex;

        textChIconIndex.Format( KChIconIndexFormatChList, KNowPlayingIconIndexChList );

        HBufC* channelItem = HBufC::NewLC( KLengthOfChannelItemString );

        channelItem->Des().Copy( iChannelItemArray->MdcaPoint( aNewIndex ) );

        TPtr ptr( channelItem->Des() );

        ptr.Append( textChIconIndex ); // Add icon index

        iChannelItemArray->InsertL( aNewIndex, *channelItem );

        CleanupStack::PopAndDestroy( channelItem );

        iChannelList->HandleItemAdditionL(); // Update list

        iChannelItemArray->Delete( aNewIndex + 1 );

        iChannelList->HandleItemRemovalL();

        iChannelList->UpdateScrollBarsL();

        }

    // required for fast channel browsing

    iChannelList->DrawNow();

    }

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

// CFMRadioScanLocalStationsContainer::HideNowPlayingIconL

// Hides 'Now Playing' icon from the last selected channel.

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

//

void CFMRadioScanLocalStationsContainer::HideNowPlayingIconL( TInt aIndex, TBool aDraw )

    {

    if ( aIndex >= 0 && aIndex < iChannelItemArray->Count() )

        {

        HBufC* channelItem = HBufC::NewLC( KLengthOfChannelItemString );

        channelItem->Des().Copy( iChannelItemArray->MdcaPoint( aIndex ) );

        TPtr ptr( channelItem->Des() );	

        TBuf<KLengthOfChannelItemIconIndexString> textChIconIndex;

        TPtrC iconIndexPtr( textChIconIndex );

        TInt err = TextUtils::ColumnText( iconIndexPtr, 2, &ptr );

        if ( iconIndexPtr.Length() > 0 )

            {

            ptr.Delete( ptr.Length() - iconIndexPtr.Length(), iconIndexPtr.Length() ); // Remove icon index

            iChannelItemArray->InsertL( aIndex, *channelItem );

            iChannelList->HandleItemAdditionL(); // Update list

            iChannelItemArray->Delete( aIndex + 1 );

            iChannelList->HandleItemRemovalL();

            iChannelList->UpdateScrollBarsL();

            }

        CleanupStack::PopAndDestroy( channelItem );

        if ( aDraw )

            {

            iChannelList->DrawDeferred();

            }

        }    

    }

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

// CFMRadioScanLocalStationsContainer::SetFaded

// Fades the entire window and controls in the window owned

// by this container control.

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

//

void CFMRadioScanLocalStationsContainer::SetFaded( TBool aFaded )

	{

    iFadeStatus = aFaded;

    Window().SetFaded( aFaded, RWindowTreeNode::EFadeIncludeChildren );

	}

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

// CFMRadioScanLocalStationsContainer::UpdateLastListenedChannel

// Updates channel index - the highlighted channel in the list.

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

//

void CFMRadioScanLocalStationsContainer::UpdateLastListenedChannel( TInt aIndex )

	{

	if ( aIndex < iChannelItemArray->Count() &&

		 aIndex > -1 )

		{

	    iLastChIndex = aIndex;

		iChannelList->SetCurrentItemIndex( iLastChIndex );

		iChannelList->ScrollToMakeItemVisible( iLastChIndex );

		DrawDeferred();			

		}

	}

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

// CFMRadioScanLocalStationsContainer::CurrentlySelectedChannel

// Returns the index of the selected channel item from the

// channel list.

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

//

TInt CFMRadioScanLocalStationsContainer::CurrentlySelectedChannel() const

	{

    return iChannelList->CurrentItemIndex(); // Index of selected channel

	}

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

// CFMRadioScanLocalStationsContainer::HandleListBoxEventL

// For handling listbox-, in this case, channel list events.

// The event equals to selecting a channel item from the list.

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

//

void CFMRadioScanLocalStationsContainer::HandleListBoxEventL( CEikListBox* /*aListBox*/,

                                                              TListBoxEvent aEventType )

    {

    // Check the event generated by keypress and report the event,

    // Also check for Pen Enabled touch screen event

    switch ( aEventType )

        {

        case EEventEnterKeyPressed:

        case EEventItemSingleClicked: // new event for item activation

            {

            ReportEventL( MCoeControlObserver::EEventStateChanged );

            break;

            }

        default:

            {

            break;

            }

        }

    }

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

// CFMRadioScanLocalStationsContainer::HandleResourceChange

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

//

void CFMRadioScanLocalStationsContainer::HandleResourceChange( TInt aType )

    {

    CCoeControl::HandleResourceChange( aType );

    }

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

// CFMRadioScanLocalStationsContainer::SizeChanged

// Called by framework when the view size is changed

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

//

void CFMRadioScanLocalStationsContainer::SizeChanged()

    {

    }

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

// CFMRadioScanLocalStationsContainer::CountComponentControls

// Return the number of controls in the window owned by this container

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

//

TInt CFMRadioScanLocalStationsContainer::CountComponentControls() const

    {

    return iControls.Count();

    }

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

// CFMRadioScanLocalStationsContainer::ComponentControl

// Return the control corresponding to the specified index

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

//

CCoeControl* CFMRadioScanLocalStationsContainer::ComponentControl( TInt aIndex ) const

    {

    return STATIC_CAST( CCoeControl*, iControls[aIndex] );

    }

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

// CFMRadioScanLocalStationsContainer::OfferKeyEventL

// Allow the channel list to process key events

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

//

TKeyResponse CFMRadioScanLocalStationsContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent,

														   		 TEventCode aType )

	{

	TKeyResponse response = EKeyWasNotConsumed;

    switch ( aKeyEvent.iCode )

        {

        case EKeyLeftArrow:

        case EKeyRightArrow:

            return EKeyWasNotConsumed;