/*

* 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:

*

*/

#include "MemSpyViewDriveInfo.h"

// System includes

#include <memspyui.rsg>

// Engine includes

#include <memspy/engine/memspyengine.h>

#include <memspy/engine/memspyengineobjectprocess.h>

#include <memspy/engine/memspyengineobjectthread.h>

#include <memspy/engine/memspyengineobjectcontainer.h>

#include <memspy/engine/memspyengineobjectthreadinfoobjects.h>

#include <memspy/engine/memspyengineobjectthreadinfocontainer.h>

#include <memspy/engine/memspyenginehelperprocess.h>

#include <memspy/engine/memspyenginehelperfilesystem.h>

// User includes

#include "MemSpyUiUtils.h"

#include "MemSpyViewMainMenu.h"

CMemSpyViewDriveInfoBase::CMemSpyViewDriveInfoBase( CMemSpyEngine& aEngine, MMemSpyViewObserver& aObserver )

:   CMemSpyViewBase( aEngine, aObserver )

    {

    }

CMemSpyViewDriveInfoBase::~CMemSpyViewDriveInfoBase()

    {

    if  ( iList )

        {

        iList->SetObserver( NULL );

        }

    //

    delete iList;

    }

void CMemSpyViewDriveInfoBase::BaseConstructL()

    {

    iList = iEngine.HelperFileSystem().DriveListL();

    }

TBool CMemSpyViewDriveInfoBase::HandleCommandL( TInt aCommand )

    {

    TBool handled = ETrue;

    //

    switch ( aCommand )

        {

    default:

        handled = CMemSpyViewBase::HandleCommandL( aCommand );

        break;

        }

    //

    return handled;

    }

CMemSpyViewDriveList::CMemSpyViewDriveList( CMemSpyEngine& aEngine, MMemSpyViewObserver& aObserver )

:   CMemSpyViewDriveInfoBase( aEngine, aObserver ), iUseDriveNumber( EFalse ), iDriveNumber( EDriveA )

    {

    }

CMemSpyViewDriveList::CMemSpyViewDriveList( CMemSpyEngine& aEngine, MMemSpyViewObserver& aObserver, TDriveNumber aDriveNumber )

:   CMemSpyViewDriveInfoBase( aEngine, aObserver ), iUseDriveNumber( ETrue ), iDriveNumber( aDriveNumber )

    {

    }

void CMemSpyViewDriveList::ConstructL( const TRect& aRect, CCoeControl& aContainer, TAny* aSelectionRune )

    {

    BaseConstructL();

    _LIT( KTitle, "Drive Summary" );

    SetTitleL( KTitle );

    // Start watching list

    iList->SetObserver( this );

    // Finish construction

    CMemSpyViewBase::ConstructL( aRect, aContainer, aSelectionRune );

    if  ( iUseDriveNumber )

        {

#ifdef _DEBUG

        RDebug::Printf( "CMemSpyViewDriveList::ConstructL() - iDriveNumber: %c:", iDriveNumber + 'A' );

#endif

        iCurrentDrive = iList->EntryByDriveNumber( iDriveNumber );

#ifdef _DEBUG

        RDebug::Printf( "CMemSpyViewDriveList::ConstructL() - iCurrentDrive: 0x%08x", iCurrentDrive );

#endif

        if  ( iCurrentDrive )

            {

            const TInt index = iList->ItemIndex( *iCurrentDrive );

#ifdef _DEBUG

            RDebug::Printf( "CMemSpyViewDriveList::ConstructL() - index: %d", index );

#endif

            iListBox->SetCurrentItemIndex( index );

            HandleListBoxItemSelectedL( index );

            }

        }

    iListBox->DrawDeferred();

    }

TMemSpyViewType CMemSpyViewDriveList::ViewType() const

    {

    return EMemSpyViewTypeDriveSummary;

    }

CMemSpyViewBase* CMemSpyViewDriveList::PrepareParentViewL()

    {

    CMemSpyViewMainMenu* parent = new(ELeave) CMemSpyViewMainMenu( iEngine, iObserver );

    CleanupStack::PushL( parent );

    parent->ConstructL( Rect(), *Parent(), (TAny*) ViewType() );

    CleanupStack::Pop( parent );

    //

    if  ( parent )

        {

        iList->SetObserver( NULL );

        }

    //

    return parent;

    }

CMemSpyViewBase* CMemSpyViewDriveList::PrepareChildViewL()

    {

    ASSERT( iCurrentDrive );

    CMemSpyViewBase* child = new(ELeave) CMemSpyViewDriveInfo( iEngine, iObserver, iCurrentDrive->DriveNumber() );

    // Stop watching list

    if  ( child )

        {

        iList->SetObserver( NULL );

        }

    // Ownership is transferred to child. Cleanupstack guarantees it will be destroyed now.

    // This object is about to die in any case.

    iList = NULL;

    CleanupStack::PushL( child );

    child->ConstructL( Rect(), *Parent() );

    CleanupStack::Pop( child );

    return child;

    }

void CMemSpyViewDriveList::RefreshL()

    {

    if  ( iList )

        {

        iList->SetObserver( NULL );

        }

    //

    CMemSpyEngineDriveList* list = iEngine.HelperFileSystem().DriveListL();

    delete iList;

    iList = list;

    iList->SetObserver( this );

    //

    SetListBoxModelL();

    CMemSpyViewBase::RefreshL();

    }

void CMemSpyViewDriveList::SetListBoxModelL()

    {

    CAknSettingStyleListBox* listbox = static_cast< CAknSettingStyleListBox* >( iListBox );

    listbox->Model()->SetItemTextArray( iList );

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

    }

void CMemSpyViewDriveList::HandleListBoxItemActionedL( TInt aIndex )

    {

    const TInt count = iList->Count();

    if  ( aIndex >= 0 && aIndex < count )

        {

        CMemSpyEngineDriveEntry& entry = iList->At( aIndex );

        iCurrentDrive = &entry;

        }

    else

        {

        iCurrentDrive = NULL;

        }

    // Notify observer about item selection

    ReportEventL( MMemSpyViewObserver::EEventItemActioned );

    }

void CMemSpyViewDriveList::HandleListBoxItemSelectedL( TInt aIndex )

    {

    const TInt count = iList->Count();

    if  ( aIndex >= 0 && aIndex < count )

        {

        CMemSpyEngineDriveEntry& entry = iList->At( aIndex );

        iCurrentDrive = &entry;

        }

    else

        {

        iCurrentDrive = NULL;

        }

    // Notify observer about item selection

    ReportEventL( MMemSpyViewObserver::EEventItemSelected );

    }

void CMemSpyViewDriveList::HandleDriveListChangedL( const CMemSpyEngineDriveList& /*aList*/ )

    {

    RefreshL();

    }

CMemSpyViewDriveInfo::CMemSpyViewDriveInfo( CMemSpyEngine& aEngine, MMemSpyViewObserver& aObserver, TDriveNumber aDriveNumber )

:   CMemSpyViewDriveInfoBase( aEngine, aObserver ), iDriveNumber( aDriveNumber )

    {

    }

void CMemSpyViewDriveInfo::ConstructL( const TRect& aRect, CCoeControl& aContainer, TAny* aSelectionRune )

    {

    BaseConstructL();

    //

    iDriveInfo = iList->EntryByDriveNumber( iDriveNumber );

    if  ( !iDriveInfo )

        {

        User::Leave( KErrNotFound );

        }

    iDriveInfo->SetObserver( this );

    _LIT( KTitleFormat, "Drive %S Info" );

    const TDriveName name( iDriveInfo->DriveUnit().Name() );

    TName title;

    title.Format( KTitleFormat, &name );

    SetTitleL( title );

    // Finish construction

    CMemSpyViewBase::ConstructL( aRect, aContainer, aSelectionRune );

    }

void CMemSpyViewDriveInfo::RefreshL()

    {

    SetListBoxModelL();

    CMemSpyViewBase::RefreshL();

    }

TMemSpyViewType CMemSpyViewDriveInfo::ViewType() const

    {

    return EMemSpyViewTypeDriveInfo;

    }

CMemSpyViewBase* CMemSpyViewDriveInfo::PrepareParentViewL()

    {

    ASSERT( iDriveInfo );

    CMemSpyViewDriveList* parent = new(ELeave) CMemSpyViewDriveList( iEngine, iObserver, iDriveInfo->DriveNumber() );

    CleanupStack::PushL( parent );

    parent->ConstructL( Rect(), *Parent() );

    CleanupStack::Pop( parent );

    //

    if  ( parent )

        {

        iDriveInfo->SetObserver( NULL );

        }

    //

    return parent;

    }

void CMemSpyViewDriveInfo::SetListBoxModelL()

    {

    if  ( iDriveInfo )

        {

        CAknSettingStyleListBox* listbox = static_cast< CAknSettingStyleListBox* >( iListBox );

        listbox->Model()->SetItemTextArray( iDriveInfo );

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

        }

    }

void CMemSpyViewDriveInfo::HandleDriveEntryChangedL( const CMemSpyEngineDriveEntry& /*aEntry*/ )

    {

    RefreshL();

    }