/*

* Copyright (c) 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:  Mailbox Deleter

*

*/

// SYSTEM INCLUDE FILES

#include <StringLoader.h>

#include <AknsUtils.h>

#include <AknsConstants.h>

#include <avkon.mbg>

#include <FreestyleEmailUi.rsg>

#include <freestyleemailui.mbg>

#include <aknnotewrappers.h>

#include <AknIconUtils.h>  

// INTERNAL INCLUDE FILES

#include "emailtrace.h"

#include "freestyleemailuimailboxdeleter.h"

#include "FreestyleEmailUiUtilities.h"

#include "cfsmailbox.h"

#include "FreestyleEmailUiAppui.h"

#include "cfsmailclient.h"

// CONSTANT VALUES

_LIT( KTabCharacter, "\t" ); 

CFSEmailUiMailboxDeleter* CFSEmailUiMailboxDeleter::NewL( CFSMailClient& aMailClient, 

                                                          MFSEmailUiMailboxDeleteObserver& aObserver  )

    {

    FUNC_LOG;

    CFSEmailUiMailboxDeleter* self = CFSEmailUiMailboxDeleter::NewLC( aMailClient, aObserver );

    CleanupStack::Pop( self );

    return self;

    }

CFSEmailUiMailboxDeleter* CFSEmailUiMailboxDeleter::NewLC( CFSMailClient& aMailClient, 

                                                           MFSEmailUiMailboxDeleteObserver& aObserver )

    {

    FUNC_LOG;

    CFSEmailUiMailboxDeleter* self = new (ELeave) CFSEmailUiMailboxDeleter( aMailClient, aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

CFSEmailUiMailboxDeleter::CFSEmailUiMailboxDeleter( CFSMailClient& aMailClient, 

                                                    MFSEmailUiMailboxDeleteObserver& aObserver )

    : iMailClient( aMailClient ), iObserver( aObserver )

    {

    FUNC_LOG;

    }

void CFSEmailUiMailboxDeleter::ConstructL()

    {

    FUNC_LOG;

    iIdle = CIdle::NewL (CIdle::EPriorityIdle);

    }

CFSEmailUiMailboxDeleter::~CFSEmailUiMailboxDeleter()

    {

    FUNC_LOG;

    delete iWaitDialog;

    iMailboxesToDelete.Close();

    if (iIdle)

    	{

    	iIdle->Cancel();

    	delete iIdle;

    	}

    }

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

// Deletes the given mailbox or displays a list of available mailboxes and

// allows the user to mark multiple mailboxes for deletion if aId is NullId.

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

//

void CFSEmailUiMailboxDeleter::DeleteMailboxL()

    {

    iMailboxesToDelete.Reset();

    // Get the deletable mailboxes.

    RPointerArray<CFSMailBox> mailboxes;

    const TInt mailboxCount = GetDeletableMailboxesLC( mailboxes );

    TBool res( EFalse );    

    if( mailboxCount == 1 )

        {

        res = DeleteSingleMailboxL( mailboxes );

        }

    else if( mailboxCount > 1 )

        {

        res = DeleteMultipleMailboxesL( mailboxes );

        }

    CleanupStack::PopAndDestroy(); // mailboxes

    if ( res )

        {

        DoDeleteSelectedMailboxesL();

        }

    }

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

// DeleteMailboxL()

// Deletes the given mailbox. Displays also a confirmation dialog.

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

//

void CFSEmailUiMailboxDeleter::DeleteMailboxL( const TFSMailMsgId& aMailboxId )

	{

    iMailboxesToDelete.Reset();

    // Get the deletable mailboxes.

    RPointerArray<CFSMailBox> mailboxes;

    const TInt mailboxCount = GetDeletableMailboxesLC( mailboxes );

    // Make sure that it is allowed to delete the mailbox with the given ID.

    CFSMailBox* mailbox = NULL;

    for ( TInt i( 0 ); i < mailboxCount; ++i )

    	{

    	mailbox = mailboxes[i];

    	if ( mailbox && mailbox->GetId() == aMailboxId )

    		{

    		// The mailbox can be deleted.

    		break;

    		}

    	mailbox = NULL;

    	}

    if ( !mailbox )

    	{

    	// Either no mailbox with the given ID exist or it is not allowed to

    	// be deleted.

    	// Display an error message?

    	CleanupStack::PopAndDestroy(); // mailboxes

    	return;

    	}

    TBool response = ConfirmMailboxDeletionL( 1, mailbox->GetName() );

    CleanupStack::PopAndDestroy(); // mailboxes

    if ( !response )

    	{

    	// User did not confirm the deletion.

    	return;

    	}

    iMailboxesToDelete.AppendL( aMailboxId );

    DoDeleteSelectedMailboxesL();

	}

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

// GetDeletableMailboxesLC()

// Returns the mailboxes that can be deleted.

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

//

TInt CFSEmailUiMailboxDeleter::GetDeletableMailboxesLC(

	RPointerArray<CFSMailBox>& aMailboxes )

	{

    // Make sure that FSMailServer is running so that the mailboxes will also

    // be removed from MCE.

    TFsEmailUiUtility::EnsureFsMailServerIsRunning(

    	CCoeEnv::Static()->WsSession() );

    CleanupResetAndDestroyClosePushL( aMailboxes );

    // Get the mailboxes.

    TFSMailMsgId id; 

    User::LeaveIfError( iMailClient.ListMailBoxes( id, aMailboxes ) );

    CFSMailBox* mailbox = NULL;

    // Filter out mailboxes that can't be deleted.

    const TInt mailboxCount( aMailboxes.Count() );

    for( TInt i( 0 ); i < mailboxCount; )

        {

        mailbox = aMailboxes[i];

        if( !mailbox->HasCapability( EFSMBoxCapaCanBeDeleted ) )

            {

            delete mailbox;

            aMailboxes.Remove( i );

            }

        else

            {

            ++i;

            }

        }

    return aMailboxes.Count();

	}

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

// DeleteSingleMailboxL

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

//

TBool CFSEmailUiMailboxDeleter::DeleteSingleMailboxL( 

                                const RPointerArray<CFSMailBox>& aMailboxes )

    {

    CFSMailBox* mailBox = aMailboxes[0];

    TBool res( ConfirmMailboxDeletionL( 1, mailBox->GetName() ) );

    if( res )

        {

        iMailboxesToDelete.AppendL( mailBox->GetId() );

        }

    return res;

    }

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

// DeleteMultipleMailboxesL

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

//

TBool CFSEmailUiMailboxDeleter::DeleteMultipleMailboxesL( 

                                const RPointerArray<CFSMailBox>& aMailboxes )

    {

    // Create array for user selections 

    CArrayFixFlat<TInt>* selections = new(ELeave) CArrayFixFlat<TInt>( aMailboxes.Count() );

    CleanupStack::PushL( selections );    

    // Setup mailbox selection dialog

    CAknListQueryDialog* dlg = new(ELeave) CAknListQueryDialog( selections );

    dlg->PrepareLC( R_DELETE_MAILBOXES_MULTI_SELECTION_QUERY );

    // Create icon array

    CArrayPtr<CGulIcon>* mailboxListIconArray = new(ELeave) CArrayPtrFlat<CGulIcon>(1);

    CleanupStack::PushL( mailboxListIconArray );

    // Create listbox model

    CDesCArrayFlat* mailboxListModel = new(ELeave) CDesCArrayFlat(1);

    CleanupStack::PushL( mailboxListModel );

    CreateListboxModelAndIconArrayL( *mailboxListModel, *mailboxListIconArray, aMailboxes );

    dlg->SetOwnershipType( ELbmOwnsItemArray );        

    dlg->SetItemTextArray( mailboxListModel ); // Takes ownership

    CleanupStack::Pop( mailboxListModel );

    dlg->SetIconArrayL( mailboxListIconArray ); // Takes ownership

    CleanupStack::Pop( mailboxListIconArray ); 

    // Display mailbox selection dialog.

    TBool res( dlg->RunLD() );

    if( res && ( selections->Count() > 0 ) )

        {

        res = ConfirmMailboxDeletionL( selections->Count(), 

                                       aMailboxes[selections->At(0)]->GetName() );

        if( res )

            {

            for( TInt i( 0 ); i < selections->Count(); ++i )

                {

                iMailboxesToDelete.AppendL( aMailboxes[selections->At(i)]->GetId() );

                }

            }

        }

    CleanupStack::PopAndDestroy( selections );

    return res;

    }

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

// DoDeleteSelectedMailboxesL()

// Deletes the selected mailboxes i.e. those of which IDs are in the

// iMailboxesToDelete array.

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

//

void CFSEmailUiMailboxDeleter::DoDeleteSelectedMailboxesL()

	{

    if ( iMailboxesToDelete.Count() < 1 )

    	{

    	// Nothing to delete!

    	return;

    	}

    // Start wait note.

    iWaitDialog = new ( ELeave ) CAknWaitDialog(

        ( REINTERPRET_CAST( CEikDialog**, &iWaitDialog ) ), EFalse );

    iWaitDialog->PrepareLC( R_FS_WAIT_NOTE_REMOVING_MAILBOX );

    iWaitDialog->SetCallback( this );

    iWaitDialog->RunLD();

    // Set email indicator off.

    TFsEmailUiUtility::ToggleEmailIconL( EFalse );

    // Delete first mailbox in queue.

	DoDeleteNextMailboxL();

	}

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

// CreateMarkIconLC

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

//

CGulIcon* CFSEmailUiMailboxDeleter::CreateMarkIconLC()

    {

    TAknsItemID skinId;

    skinId.Set( EAknsMajorGeneric, EAknsMinorGenericQgnIndiMarkedAdd );

    TRgb defaultColour( KRgbBlack );

    CFbsBitmap* bmap = NULL;

    CFbsBitmap* mask = NULL;

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    AknsUtils::GetCachedColor( skin, defaultColour,

               KAknsIIDQsnIconColors, EAknsCIQsnIconColorsCG13 );

    AknsUtils::CreateColorIconLC( skin, 

                                  skinId,

                                  KAknsIIDQsnIconColors, 

                                  EAknsCIQsnIconColorsCG13, 

                                  bmap, 

                                  mask,

                                  AknIconUtils::AvkonIconFileName(), 

                                  EMbmAvkonQgn_indi_marked_add, 

                                  EMbmAvkonQgn_indi_marked_add_mask,

                                  defaultColour );

    CGulIcon* icon = CGulIcon::NewL( bmap, mask );

    icon->SetBitmapsOwnedExternally( EFalse );

    CleanupStack::Pop( 2 ); // Icon owns the bitmaps now   

    CleanupStack::PushL( icon );

    return icon;

    }

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

// CreateDefaultMailboxIconLC

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

//

CGulIcon* CFSEmailUiMailboxDeleter::CreateDefaultMailboxIconLC()

    {

    TFileName iconFileName;

    TFsEmailUiUtility::GetFullIconFileNameL( iconFileName );

    CFbsBitmap* bmap = NULL;

    CFbsBitmap* mask = NULL;

    AknIconUtils::CreateIconLC( bmap, mask, iconFileName,

                         EMbmFreestyleemailuiQgn_indi_cmail_drop_inbox,

                         EMbmFreestyleemailuiQgn_indi_cmail_drop_inbox_mask);

    CGulIcon* defaultIcon = CGulIcon::NewL( bmap, mask );

    defaultIcon->SetBitmapsOwnedExternally( EFalse );

    CleanupStack::Pop( 2 ); // Icon owns the bitmaps now   

    CleanupStack::PushL( defaultIcon );    

    return defaultIcon;

    }

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

// ConfirmMailboxDeletionL

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

//

TBool CFSEmailUiMailboxDeleter::ConfirmMailboxDeletionL( TInt aCount, 

                                                         const TDesC& aMailboxName )

    {

    CAknQueryDialog* dlg = new ( ELeave ) CAknQueryDialog();

    dlg->PrepareLC( R_FSEMAIL_QUERY_DIALOG );

    HBufC* queryText = NULL;    

    if( aCount == 1 )

        {

        queryText = StringLoader::LoadLC( R_DELETE_MAILBOX_QUERY, aMailboxName );

        }

    else if( aCount > 0 )

        {

        queryText = StringLoader::LoadLC( R_DELETE_MULTIPLE_MAILBOXES_QUERY, 

                                          aCount );

        }

    dlg->SetPromptL( *queryText );

    CleanupStack::PopAndDestroy( queryText );

    return dlg->RunLD();

    }

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

// CreateListboxModelAndIconArrayL

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

//

void CFSEmailUiMailboxDeleter::CreateListboxModelAndIconArrayL( 

                                    CDesCArrayFlat& aModel,

                                    CArrayPtr<CGulIcon>& aIconArray, 

                                    const RPointerArray<CFSMailBox>& aMailboxes )

    {

    // Create and add listbox mark icon

    CGulIcon* markIcon = CreateMarkIconLC();

    aIconArray.AppendL( markIcon );

    CleanupStack::Pop( markIcon );

    // Create and add default (non-branded) mailbox icon

    CGulIcon* defaultIcon = CreateDefaultMailboxIconLC();

    aIconArray.AppendL( defaultIcon );

    CleanupStack::Pop( defaultIcon );

    // Add branded mailbox icons

    CFSMailBox* mailBox = NULL;     

    for( TInt i(0); i < aMailboxes.Count(); ++i )

        {

        mailBox = aMailboxes[i];

        CGulIcon* mbIcon = NULL;

        TRAPD( err, mbIcon = iMailClient.GetBrandManagerL().GetGraphicL( EFSMailboxIcon, 

                                                                         mailBox->GetId() ) ); 

        if ( err == KErrNone && mbIcon )

            {

            CleanupStack::PushL( mbIcon );

            aIconArray.AppendL( mbIcon );

            CleanupStack::Pop( mbIcon );            

            }

        TPtrC name( mailBox->GetName() );

        HBufC* buf = HBufC::NewLC( name.Length() + 

                                   KTabCharacter().Length() * 2 + 4 ); // +4 for icon id

        TPtr bufPtr( buf->Des() );

        TInt index( mbIcon ? aIconArray.Count() - 1 : 1 ); // Select branded or default icon

        TBuf<4> indexBuf;

        indexBuf.Num( index );

        bufPtr.Append( indexBuf );

        bufPtr.Append( KTabCharacter );

        bufPtr.Append( name );

        bufPtr.Append( KTabCharacter );

        aModel.AppendL( bufPtr );

        CleanupStack::PopAndDestroy( buf );

        }            

    }

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

// RequestResponseL

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

//

void CFSEmailUiMailboxDeleter::RequestResponseL( TFSProgress aEvent, 

                                                 TInt aRequestId )

    {

    switch( aEvent.iProgressStatus )

        {

        case TFSProgress::EFSStatus_RequestComplete:

        case TFSProgress::EFSStatus_RequestCancelled:

            {

            if( aRequestId == iMailboxDeleteOperationId )

                {

                if( iMailboxesToDelete.Count() > 0 )

                    {

                    // Delete next mailbox in queue.

            	    iIdle->Cancel();

            		iIdle->Start(TCallBack(IdleCallbackL,this));

                    }

                else

                    {

                    if( iWaitDialog )

                        {

                        iWaitDialog->ProcessFinishedL();

                        }

                    // Notify observer that the deletion is complete. 

                    iObserver.MailboxDeletionComplete();

                    }

                }            

            break;

            }

        default:

            {

            break;

            }

        }

    }

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

// DialogDismissedL

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

//

void CFSEmailUiMailboxDeleter::DialogDismissedL( TInt /*aButtonId */ )

    {

    iWaitDialog = NULL;

    }

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

// DoDeleteNextMailboxL

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

//

void CFSEmailUiMailboxDeleter::DoDeleteNextMailboxL()

    {

    TFSMailMsgId nextToDelete = iMailboxesToDelete[0]; 

    iMailboxesToDelete.Remove( 0 );

    iMailboxDeleteOperationId = iMailClient.DeleteMailBoxByUidL( nextToDelete, 

                                                                 *this );

    }

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

// IdleCallback

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

//