/*

* Copyright (c) 2002-2008 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:  View for folder

*

*/

// INCLUDE FILES

#include <StringLoader.h>

#include <akntitle.h> 

#include <aknnavi.h> 

#include <aknnavide.h> 

#include <barsread.h>

#include <aknlists.h>

#include <AknsConstants.h>

#include <AknInfoPopupNoteController.h>

#include <csxhelp/fmgr.hlp.hrh>

#include <CFileManagerEngine.h>

#include <FileManager.rsg>

#include <FileManagerView.rsg>

#include <TFileManagerDriveInfo.h>

#include <CFileManagerCommonDefinitions.h>

#include <FileManagerDebug.h>

#include "CFileManagerFoldersView.h"

#include "CFileManagerFileListContainer.h"

#include "CFileManagerAppUi.h"

#include "CFileManagerDocument.h"

#include "Cfilemanagerfoldernavigationpane.h"

#include "FileManager.hrh"

#include "FileManagerUID.h"

// CONSTANTS

const TUid CFileManagerFoldersView::KOpenFromSearchResultsView =

    { EOpenFromSearchResultsView };

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

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

// CFileManagerFoldersView::CFileManagerFoldersView

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

// might leave.

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

//

CFileManagerFoldersView::CFileManagerFoldersView()

    {

    }

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

// CFileManagerFoldersView::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CFileManagerFoldersView::ConstructL()

    {

    CFileManagerViewBase::ConstructL( R_FILEMANAGER_FOLDERS_VIEW );

    CEikStatusPane* sp = StatusPane();

    iNaviPane = static_cast< CAknNavigationControlContainer* >

        ( sp->ControlL( TUid::Uid( EEikStatusPaneUidNavi ) ) );

    iPopupController = CAknInfoPopupNoteController::NewL();

    iPopupController->SetTimeDelayBeforeShow( 0 );

    }

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

// CFileManagerFoldersView::NewLC

// Two-phased constructor.

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

//

CFileManagerFoldersView* CFileManagerFoldersView::NewLC()

    {

    CFileManagerFoldersView* self = new( ELeave ) CFileManagerFoldersView;

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CFileManagerFoldersView::~CFileManagerFoldersView

// Destructor

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

// 

CFileManagerFoldersView::~CFileManagerFoldersView()

    {

    delete iPopupController;

    delete iNaviDecorator;

    }

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

// CFileManagerFoldersView::Id

// 

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

// 

TUid CFileManagerFoldersView::Id() const

    {

    return CFileManagerAppUi::KFileManagerFoldersViewId;

    }

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

// CFileManagerFoldersView::CreateContainerL

// 

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

// 

CFileManagerContainerBase* CFileManagerFoldersView::CreateContainerL() 

    {

    return CFileManagerFileListContainer::NewL(

        ClientRect(),

        iIndex,

        CFileManagerFileListContainer::EListFolder,

        R_QTN_SELEC_EMPTY_LIST,

        KFMGR_HLP_MEM_STORE_VIEW );

    }

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

// CFileManagerFoldersView::DoActivateL

// 

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

// 

void CFileManagerFoldersView::DoActivateL( const TVwsViewId& aPrevViewId, 

                                           TUid aCustomMessageId, 

                                           const TDesC8& aCustomMessage )

    {

    FUNC_LOG

    if ( aCustomMessageId == KOpenFromSearchResultsView )

        {

        iInitialFolderDepth = iEngine.FolderLevel();

        }

    else

        {

        // Check embedded app exit

        CFileManagerAppUi* appUi = 

            static_cast< CFileManagerAppUi* >( AppUi() );

        appUi->ExitEmbeddedAppIfNeededL();

        iInitialFolderDepth = 1; // First folder view level

        }

    CFileManagerViewBase::DoActivateL( aPrevViewId, aCustomMessageId, aCustomMessage );

    TResourceReader reader;

    iCoeEnv->CreateResourceReaderLC( reader, R_FILEMANAGER_FOLDER_NAVIGATION_PANE );

    iNaviControl = CFileManagerFolderNavigationPane::NewL( iEngine.Memory(), 0, reader );

    CleanupStack::PopAndDestroy(); // reader

    iNaviControl->SetObserver( this );

    iNaviDecorator = CAknNavigationDecorator::NewL( iNaviPane, iNaviControl );

    iNaviDecorator->SetContainerWindowL( *iNaviPane );

    iNaviPane->PushL( *iNaviDecorator );

    RefreshTitleL();

    iEngine.SetState( CFileManagerEngine::ENavigation );

    iEngine.SetObserver( this );

    iEngine.RefreshDirectory();

    }

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

// CFileManagerFoldersView::DoDeactivate

// 

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

// 

void CFileManagerFoldersView::DoDeactivate()

    {

    FUNC_LOG

    CFileManagerViewBase::DoDeactivate();

    iNaviPane->Pop( iNaviDecorator );

    delete iNaviDecorator;

    iNaviDecorator = NULL;

    iNaviControl = NULL; // Not owned and deleted by decorator

    iPopupController->HideInfoPopupNote();

    }

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

// CFileManagerFoldersView::RefreshTitleL

// 

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

// 

void CFileManagerFoldersView::RefreshTitleL()

    {

    static_cast< CFileManagerAppUi* >( AppUi() )->SetTitleL(

        iEngine.LocalizedNameOfCurrentDirectory() );

    if ( iNaviControl ) // May be deleted by view deactivation

        {

        iNaviControl->ChangeRootL( iEngine.Memory() );

        iNaviControl->SetFolderDepth( iEngine.FolderLevel() );

        }

    iNaviPane->DrawDeferred();

    }

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

// CFileManagerFoldersView::HandleCommandL

// 

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

// 

void CFileManagerFoldersView::HandleCommandL( TInt aCommand )

    {

    switch( aCommand )

        {

        case EAknSoftkeyBack:

            {

            BackstepL();

            break;

            }

        case EFileManagerOpen:

            {

            iPopupController->HideInfoPopupNote();

            CFileManagerViewBase::CmdOpenL();

            break;

            }

        default:

            {

            CFileManagerViewBase::HandleCommandL( aCommand );

            break;

            }

        }

    }

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

// CFileManagerFoldersView::DirectoryChangedL

// 

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

// 

void CFileManagerFoldersView::DirectoryChangedL()

    {

    FUNC_LOG

    CFileManagerAppUi* appUi = static_cast< CFileManagerAppUi* >( AppUi() );

    if ( iEngine.FolderLevel() < iInitialFolderDepth || !iContainer )

        {

        appUi->CloseFoldersViewL();

        }

    else

        {

        if ( !appUi->IsSearchViewOpen() )

            {

            appUi->ExitEmbeddedAppIfNeededL();

            }

		TInt usb_err(KErrNone);

			TRAP( usb_err,RefreshDriveInfoL() );

		if (usb_err != KErrNone)

			{

			usbWrongRemoved = ETrue;

			HBufC* error = StringLoader::LoadLC(R_QTN_SELEC_EMPTY_LIST);

			if (iContainer)

				{

				iContainer->ListBoxSetTextL(*error);

				}

			CleanupStack::PopAndDestroy(error);

			}

		else

			{

				TFileManagerDriveInfo& drvInfo( DriveInfo() );

				if ( !( drvInfo.iState & TFileManagerDriveInfo::EDrivePresent ) )

				{

					//User::Leave(KErrPathNotFound);

					HBufC* error = StringLoader::LoadLC(R_QTN_SELEC_EMPTY_LIST);

					if (iContainer)

						{

						iContainer->ListBoxSetTextL(*error);

						}

					CleanupStack::PopAndDestroy(error);

				}

			else

				{

				usbWrongRemoved = EFalse;

				TInt index( iEngine.CurrentIndex() );

				if ( index != KErrNotFound )

					{

					iContainer->RefreshListL( index );

					}

				else

					{

					iContainer->RefreshListL( iIndex );

					}

				} 			

			}

		RefreshTitleL();	

		iFolderDepth = iEngine.FolderLevel();

		}

    }

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

// CFileManagerFoldersView::HandleResourceChangeL

// (other items were commented in a header).

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

//

void CFileManagerFoldersView::HandleResourceChangeL( TInt aType )

    {

    if ( iNaviControl ) // May be deleted by view deactivation

        {

        iNaviControl->HandleResourceChangeL( aType );

        }

    }

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

// CFileManagerFoldersView::UpdateCbaL

//

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

//

void CFileManagerFoldersView::UpdateCbaL()

    {

    UpdateCommonCbaL();

    }

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

// CFileManagerFoldersView::BackstepL

//

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

//

void CFileManagerFoldersView::BackstepL(

       TInt aBacksteps )

    {

	if ( usbWrongRemoved )

		{

		CFileManagerAppUi* appUi = static_cast<CFileManagerAppUi*> (AppUi());	 

		usbWrongRemoved = EFalse;

		iFolderDepth = 0;

		iIndex = 0;

		appUi->CloseFoldersViewL();

		}

	else

		{

		if (iActiveProcess != ENoProcess)

				{

				return; // Ignore to avoid container mess up

				}

			iPopupController->HideInfoPopupNote();

			CFileManagerAppUi* appUi = static_cast<CFileManagerAppUi*> (AppUi());

			TInt level(iEngine.FolderLevel());

    while ( aBacksteps > 0 )

        {

        if ( level < iInitialFolderDepth )

            {

            break;

            }

        TRAP_IGNORE( iEngine.BackstepL() );

        --level;

        --aBacksteps;

        }

    if ( !appUi->IsSearchViewOpen() )

        {

        appUi->ExitEmbeddedAppIfNeededL();

        }

		if (level < iInitialFolderDepth)

			{

			iFolderDepth = 0;

			iIndex = 0;

			appUi->CloseFoldersViewL();

			}

		else

			{

			iEngine.SetObserver(this);

			iEngine.RefreshDirectory();

			}

		}

	}

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

// CFileManagerFoldersView::FolderName

//

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

//

TPtrC CFileManagerFoldersView::FolderName( const TInt aLevel )

    {

    if ( !aLevel )

        {

        // Get memory store name

        return iEngine.CurrentDriveName();

        }

    // Get folder name

    TPtrC dir( iEngine.CurrentDirectory() );

    TInt drive = TDriveUnit( dir );

    TPtrC root( iEngine.DriveRootDirectory( drive ) );

    TInt count( dir.Length() );

    TInt bsCount( 0 );

    for ( TInt i( root.Length() ); i < count; )

        {

        TPtrC ptr( dir.Mid( i ) );

        TInt j( ptr.Locate( KFmgrBackslash()[ 0 ] ) );

        if ( j != KErrNotFound )

            {

            ++bsCount;

            if ( bsCount == aLevel )

                {

                // Use localised folder name if it exists

                TPtrC locName( iEngine.LocalizedName( dir.Left(

                    i + j + 1 ) ) );

                if ( locName.Length() )

                    {

                    return locName; 

                    }

                return TPtrC( ptr.Left( j ) );

                }

            }

        else

            {

            break;

            }

        i += j + 1;

        }

    return TPtrC( KNullDesC );

    }

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

// CFileManagerFoldersView::HandleFolderNaviEventL

//

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

//

void CFileManagerFoldersView::HandleFolderNaviEventL(

        TNaviEvent aEvent, TInt aValue )

    {

    switch ( aEvent )

        {

        case ENaviTapDown:

            {

            iPopupController->HideInfoPopupNote();

            break;

            }

        case ENaviTapUp:

            {

            if ( aValue != KErrNotFound )

                {

                TInt level( iEngine.FolderLevel() );

                if ( level > aValue )

                    {

                    BackstepL( level - aValue );

                    }

                }

            break;

            }

        case ENaviLongTap:

            {

            if ( aValue != KErrNotFound )

                {

                TPtrC folder( FolderName( aValue ) );

                if ( folder.Length() )

                    {

                    iPopupController->SetTextL( folder );

                    iPopupController->ShowInfoPopupNote();

                    }

                }

            break;

            }

        default:

            {

            break;

            }

        }

    }

//  End of File