/*

* Copyright (c) 2008-2009 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:    Delete command handler

*

*/

/**

 * @internal reviewed 06/06/2007 by Dave Schofield

 */

#include "glxcommandhandlernewmedia.h"

#include <AknUtils.h>

#include <badesca.h>

#include <bautils.h>

#include <glxattributecontext.h>

#include <glxattributeretriever.h>

#include <glxcollectiongeneraldefs.h>

#include <glxcommandfactory.h>

#include <glxcommandhandlers.hrh>

#include <glxfetchcontextremover.h>

#include <glxgeneraluiutilities.h>

#include <glxpanic.h>

#include <glxtracer.h>

#include <glxresourceutilities.h>                // for CGlxResourceUtilities

#include <glxsetappstate.h>

#include <glxtextentrypopup.h>

#include <glxuistd.h>

#include <glxuiutilities.rsg>

#include <mglxmedialist.h>

#include <mpxcollectionpath.h>

#include <mpxcommonframeworkdefs.h>

#include <StringLoader.h>

#include <data_caging_path_literals.hrh>

#include <glxuiutilities.rsg>

const TInt KMaxNumberLength = 10;

_LIT(KOpenBracket, "(");

_LIT(KCloseBracket, ")");

_LIT(KFileNameFormatString, "(%+02u)");

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

// Two-phased constructor.

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

//

EXPORT_C CGlxCommandHandlerNewMedia* CGlxCommandHandlerNewMedia::NewL(

		MGlxMediaListProvider* aMediaListProvider, const TDesC& aFileName)

	{

	TRACER("CGlxCommandHandlerNewMedia* CGlxCommandHandlerNewMedia::NewL");

	CGlxCommandHandlerNewMedia* self = new (ELeave) CGlxCommandHandlerNewMedia(

			aMediaListProvider);

	CleanupStack::PushL(self);

	self->ConstructL(aFileName);

	CleanupStack::Pop(self);

	return self;

	}

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

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

// might leave.

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

//

CGlxCommandHandlerNewMedia::CGlxCommandHandlerNewMedia(MGlxMediaListProvider* aMediaListProvider)

        : CGlxMpxCommandCommandHandler(aMediaListProvider)

    {

    // Don't do anything.

    }

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

// CGlxCommandHandlerNewMedia::DoHandleCommandCompleteL

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

//	

void CGlxCommandHandlerNewMedia::DoHandleCommandCompleteL(TAny* /*aSessionId*/, CMPXCommand* aCommandResult, 

            							TInt aError, MGlxMediaList* /*aList*/)

	{

    TRACER("CGlxCommandHandlerNewMedia::DoHandleCommandCompleteL");

	if (aError == KErrNone && aCommandResult && aCommandResult->IsSupported(KMPXMediaGeneralId))

    	{	

    	iNewMediaId = TGlxMediaId(aCommandResult->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));

    	iOkToExit = EFalse; // wait for media id to be added to the list 

                                // (unless we are using iSchedulerWait)

    	}	

	if (iSchedulerWait && aError != KErrAlreadyExists )

		{

	    // if iSchedulerWait exists then we know the command is being executed from

	    // the ExecuteLD() method.

		iNewMediaCreationError = aError;

		iSchedulerWait->AsyncStop();

		}

	}

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

// CGlxCommandHandlerNewMedia::OkToExit

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

//

EXPORT_C TBool CGlxCommandHandlerNewMedia::OkToExit() const

    {

    return iOkToExit;

    }

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

// Symbian 2nd phase constructor can leave.

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

//

void CGlxCommandHandlerNewMedia::ConstructL(const TDesC& aFileName)

	{

	TRACER("CGlxCommandHandlerNewMedia::ConstructL()");

	iFileNameAlreadyExists = EFalse;

	iResourceOffset = CCoeEnv::Static()->AddResourceFileL(aFileName);

	iAsyncFocuser = new (ELeave) CGlxAsyncFocuser(this);

	// Add supported command

	TCommandInfo info(EGlxCmdAddMedia);

	// Filter out static items

	AddCommandL(info);

	}

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

// Destructor

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

//

EXPORT_C CGlxCommandHandlerNewMedia::~CGlxCommandHandlerNewMedia()

    {

    TRACER("CGlxCommandHandlerNewMedia::~CGlxCommandHandlerNewMedia()");

    if ( iResourceOffset )

        {

        CCoeEnv::Static()->DeleteResourceFile(iResourceOffset);

        }

    delete iSchedulerWait;

    delete iAsyncFocuser;

    delete iNewMediaItemTitle;

    }

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

// CGlxCommandHandlerNewMedia::ExecuteLD()

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

//

EXPORT_C TInt CGlxCommandHandlerNewMedia::ExecuteLD(TGlxMediaId& aNewMediaId)

	{

    TRACER("CGlxCommandHandlerNewMedia::ExecuteLD");

	CleanupStack::PushL(this);

	iSchedulerWait = new (ELeave) CActiveSchedulerWait();

	CGlxMpxCommandCommandHandler::ExecuteL( EGlxCmdAddMedia );

	if (iNewMediaCreationError == KErrNone)

		{

		// The user pressed OK on the dialog. We need to wait for DoHandleCommandComplete()	

		iSchedulerWait->Start();

		if (iNewMediaCreationError == KErrNone)

			{

			aNewMediaId = iNewMediaId;

			}

		}

	TInt error = iNewMediaCreationError;

	CleanupStack::PopAndDestroy(this);

	return error;

	}

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

// Create an add to container command

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

//

CMPXCommand* CGlxCommandHandlerNewMedia::CreateCommandL(TInt /*aCommandId*/, 

        MGlxMediaList& aMediaList, TBool& /*aConsume*/) const

    {

    TRACER("CGlxCommandHandlerNewMedia::CreateCommandL");

    iOkToExit = ETrue;

    CMPXCollectionPath* path = aMediaList.PathLC( NGlxListDefs::EPathParent );

    CMPXCommand* command = NULL;

    TRAPD(error, TitlesL(TGlxMediaId(path->Id(0)), defaultNewMediaItemTitle));

    if(error != KErrNone)

        {

        iNewMediaCreationError = KErrCancel;

        CleanupStack::PopAndDestroy(path);

        return command;

        }

    HBufC* mediaPopupTitle = StringLoader::LoadLC(R_GLX_PROMPT_NAME);

    if(iFileNameAlreadyExists)

	    {

	    iFileNameAlreadyExists = EFalse ;

	    }

	else

	    {

   	    delete iNewMediaItemTitle;

    	iNewMediaItemTitle = NULL;

    	iNewMediaItemTitle = GenerateNewMediaItemTitleL(defaultNewMediaItemTitle, aMediaList);

	    }

    TPtr newMediaItemTitleDes = iNewMediaItemTitle->Des();

    CGlxTextEntryPopup* dialog = CGlxTextEntryPopup::NewL(*mediaPopupTitle, newMediaItemTitleDes);

    if(dialog->ExecuteLD() == EEikBidOk)

    	{

        command = TGlxCommandFactory::AddContainerCommandLC(*iNewMediaItemTitle, path->Id(0));

        CleanupStack::Pop(command);

    	}

    else

    	{

    	iNewMediaCreationError = KErrCancel;

    	}

    CleanupStack::PopAndDestroy(mediaPopupTitle);

    CleanupStack::PopAndDestroy(path);

    return command;

    }

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

// CGlxCommandHandlerNewMedia::HandleErrorL

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

// 

void CGlxCommandHandlerNewMedia::HandleErrorL(TInt aError) 

	{

    TRACER("CGlxCommandHandlerNewMedia::HandleErrorL");

	if (aError == KErrAlreadyExists && iNewMediaItemTitle)

		{

		HBufC* info = StringLoader::LoadLC(R_GLX_NAME_ALREADY_USED, *iNewMediaItemTitle);

		GlxGeneralUiUtilities::ShowInfoNoteL(*info, ETrue);

		CleanupStack::PopAndDestroy(info);

		iFileNameAlreadyExists = ETrue ;

		// As the new Item name already existing , re-execute the command to show entry pop-up

		CGlxMpxCommandCommandHandler::ExecuteL( EGlxCmdAddMedia );

		if (iSchedulerWait && iNewMediaCreationError == KErrCancel )

			{

		    // if iSchedulerWait exists then we know the command is being executed from

		    // the ExecuteLD() method.

			// Stop the schedulerwait loop if dialog is cancelled after starting the schedulerwait loop

			iSchedulerWait->AsyncStop();

			}

		}

	else

		{

	    // Use default error handler

	    CGlxMpxCommandCommandHandler::HandleErrorL(aError);

		}

    }

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

// BypassFiltersForExecute

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

//	

EXPORT_C TBool CGlxCommandHandlerNewMedia::BypassFiltersForExecute() const

    {

    TRACER("CGlxCommandHandlerNewMedia::BypassFiltersForExecute()");

    // if iSchedulerWait exists then we know the command is being executed from

    // the ExecuteLD() method and filtering is not required.

    return iSchedulerWait != NULL;

    }

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

// TitlesL fetches the 'media popup title' and 'default new media item title'

// from the collection.

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

//

void CGlxCommandHandlerNewMedia::TitlesL(const TGlxMediaId aCollectionId,

        TDes& aDefaultNewMediaItemTitle) const

    {

    TRACER("CGlxCommandHandlerNewMedia::TitlesL");

    CMPXCollectionPath* path = CMPXCollectionPath::NewL();

    CleanupStack::PushL(path);

    MGlxMediaList* rootList = MGlxMediaList::InstanceL(*path);

    CleanupClosePushL(*rootList);

    TGlxSpecificIdIterator iter(KGlxIdSpaceIdRoot, aCollectionId);

    CGlxAttributeContext* attributeContext =

            new (ELeave) CGlxAttributeContext(&iter);

    CleanupStack::PushL(attributeContext);

    attributeContext->AddAttributeL(

            KGlxMediaCollectionPluginSpecificDefaultMediaTitle);

    rootList->AddContextL(attributeContext, KGlxFetchContextPriorityBlocking);

    TGlxFetchContextRemover contextRemover(attributeContext, *rootList);

    // put to cleanupstack as cleanupstack is emptied before stack objects

    // are deleted

    CleanupClosePushL(contextRemover);

    User::LeaveIfError(GlxAttributeRetriever::RetrieveL(*attributeContext,

            *rootList, ETrue));

    // context off the list

    CleanupStack::PopAndDestroy(&contextRemover);

    TInt index = rootList->Index(KGlxIdSpaceIdRoot, aCollectionId);

    __ASSERT_DEBUG(index != KErrNotFound, Panic(EGlxPanicRequiredItemNotFound));

    TGlxMedia item = rootList->Item(index);

    const CGlxMedia* media = item.Properties();

    if (media)

        {

        aDefaultNewMediaItemTitle.Copy(media->ValueText(

                KGlxMediaCollectionPluginSpecificDefaultMediaTitle).Left(

        }

    CleanupStack::PopAndDestroy(attributeContext);

    CleanupStack::PopAndDestroy(rootList);

    CleanupStack::PopAndDestroy(path);

    }

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

// TitlesL fetches the 'media popup title' and 'default new media item title'

// from the collection.

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

//

HBufC* CGlxCommandHandlerNewMedia::GenerateNewMediaItemTitleL(

        const TDesC& aDefaultNewMediaItemTitle, MGlxMediaList& aList) const

    {

    TRACER("CGlxCommandHandlerNewMedia::GenerateNewMediaItemTitleL");

    TGlxSequentialIterator iter;

    CGlxAttributeContext* attributeContext =

            new (ELeave) CGlxAttributeContext(&iter);

    CleanupStack::PushL(attributeContext);

    attributeContext->AddAttributeL(KMPXMediaGeneralTitle);

    aList.AddContextL(attributeContext, KGlxFetchContextPriorityBlocking);

    TGlxFetchContextRemover contextRemover(attributeContext, aList);

    // put to cleanupstack as cleanupstack is emptied before stack objects

    // are deleted

    CleanupClosePushL(contextRemover);

    User::LeaveIfError(GlxAttributeRetriever::RetrieveL(*attributeContext,

            aList, EFalse));

    // context off the list

    CleanupStack::PopAndDestroy(&contextRemover);

    CleanupStack::PopAndDestroy(attributeContext);

    RArray<TInt> numbers;

    CleanupClosePushL(numbers);

    TInt count = aList.Count();

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

        {

        TGlxMedia item = aList.Item(i);

        const CGlxMedia* media = item.Properties();

        if (media)

            {

            const TDesC& title = media->ValueText(KMPXMediaGeneralTitle);

            TInt length = aDefaultNewMediaItemTitle.Length();

            if (title.Left(length).Compare(aDefaultNewMediaItemTitle) == 0)

                {

                if (length == title.Length())

                    {

                    numbers.InsertInOrderL(0); // special case

                    }

                else if (title.Length() > length + KOpenBracket().Length()

                        + KCloseBracket().Length())

                    {

                    TInt pos = length;

                    length = KOpenBracket().Length();

                    if (title.Mid(pos, length).Compare(KOpenBracket) == 0

                            && title.Right(KCloseBracket().Length()).Compare(

                                    KCloseBracket) == 0)

                        {

                        pos += length;

                        length = title.Length() - pos

                                - KCloseBracket().Length();

                        if (length > 0)

                            {

                            TInt val = 0;

                            if (lex.Val(val) == KErrNone)

                                {

                                numbers.InsertInOrderL(val);

                                }

                            }

                        }

                    }

                }

            }

        }

    TInt nextNumber = 0;

    count = numbers.Count();

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

        {

        if (numbers[i] == nextNumber)

            {

            nextNumber++;

            }

        else

            {

            break;

            }

        }

    CleanupStack::PopAndDestroy(&numbers);

    TInt defaultTitleLength = aDefaultNewMediaItemTitle.Length()

            + KFileNameFormatString().Length() + KCloseBracket().Length()

            + KMaxNumberLength;

    // make sure we allocate enough space for it.

                                            defaultTitleLength

    HBufC* newMediaItemTitle = HBufC::NewL(titleLength);

    TPtr newMediaItemTitleDes = newMediaItemTitle->Des();

    newMediaItemTitleDes.Append(aDefaultNewMediaItemTitle);

    if (nextNumber > 0)

        {

        }

    else

        {

        // 0 is a special case, return "New Media", not "New Media (0)"

        }

    return newMediaItemTitle;

    }

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

// SetFocusL()

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

// 

void CGlxCommandHandlerNewMedia::SetFocusL(TInt aIndex)

    {

    TRACER("CGlxCommandHandlerNewMedia::SetFocusL");

    iOkToExit = ETrue;

    MediaList().SetFocusL(NGlxListDefs::EAbsolute, aIndex);

    TryExitL(KErrNone);

    }

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

// HandleItemAddedL

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

//  

EXPORT_C void CGlxCommandHandlerNewMedia::HandleItemAddedL(TInt aStartIndex,

        TInt aEndIndex, MGlxMediaList* aList)

    {

    TRACER("CGlxCommandHandlerNewMedia::HandleItemAddedL");

    if (aList == &MediaList() && iNewMediaId != KGlxCollectionRootId)

        {

        for (TInt i = aStartIndex; i <= aEndIndex; i++)

            {

            if (aList->Item(i).Id() == iNewMediaId)

                {

                // calls CGlxCommandHandlerNewMedia::SetFocusL asynchronously

                iAsyncFocuser->SetFocus(i);

                break;

                }

            }

        }

    }

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

// Constructor

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

//  

CGlxCommandHandlerNewMedia::CGlxAsyncFocuser::

    CGlxAsyncFocuser(CGlxCommandHandlerNewMedia* aGlxCommandHandlerNewMedia)

    : CActive(KMaxTInt), iGlxCommandHandlerNewMedia(aGlxCommandHandlerNewMedia)

    // The active object has the maximum possible priority to prevent 

    // other active objects running before it. (Unless they too are 

    // scheduled to run and have the maximum possible priority

    {

    TRACER("CGlxCommandHandlerNewMedia::CGlxAsyncFocuser::CGlxAsyncFocuser");

    __ASSERT_DEBUG(aGlxCommandHandlerNewMedia, Panic(EGlxPanicNullPointer));

    CActiveScheduler::Add(this);

    }

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

// Destructor

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

//  

CGlxCommandHandlerNewMedia::CGlxAsyncFocuser::

    ~CGlxAsyncFocuser()

    {

    TRACER("CGlxCommandHandlerNewMedia::CGlxAsyncFocuser::~CGlxAsyncFocuser()");

    Cancel();

    }

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

// RunL

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