ui/commandhandlers/commoncommandhandlers/src/glxcommandhandlerrename.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 03 May 2010 12:31:32 +0300
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include <hbmessagebox.h>
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#include <hblabel.h>
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#include <mpxcollectionpath.h>
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#include <mglxmedialist.h>
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#include <glxcommandfactory.h>
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#include <glxcommandhandlerrename.h>
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#include <glxattributecontext.h>
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#include <glxattributeretriever.h>
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#include <glxfetchcontextremover.h>
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#include <glxcommondialogs.h>
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GlxCommandHandlerRename::GlxCommandHandlerRename()
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    {
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    }
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GlxCommandHandlerRename::~GlxCommandHandlerRename()
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    {
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    }
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CMPXCommand* GlxCommandHandlerRename::CreateCommandL(TInt aCommandId,
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        MGlxMediaList& aMediaList, TBool& aConsume) const
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    {
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    Q_UNUSED(aCommandId);
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    Q_UNUSED(aConsume);
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    CMPXCommand* command = NULL;
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    QString mainPane = GetName(aMediaList);
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    QString title("Rename");
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    QString mediaTitle = NULL;
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    bool ok = false;    
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    GlxTextInputDialog* dlg = new GlxTextInputDialog();
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    mediaTitle = dlg->getText(title, mainPane, &ok);
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    delete dlg;
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    if(ok == true)
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        {
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        TPtrC16 newMediaItemTitleDes
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            = (reinterpret_cast<const TUint16*> (mediaTitle.utf16()));
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        HBufC* newMediaItemTitle = newMediaItemTitleDes.Alloc();
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        CleanupStack::PushL(newMediaItemTitle);
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        CMPXCollectionPath* path = aMediaList.PathLC(
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                NGlxListDefs::EPathFocusOrSelection);
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        command = 
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            TGlxCommandFactory::RenameCommandLC(*newMediaItemTitle,*path);
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        CleanupStack::Pop(command);
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        CleanupStack::PopAndDestroy(path);
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        CleanupStack::PopAndDestroy(newMediaItemTitle);
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        }
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    return command;
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    }
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QString GlxCommandHandlerRename::CompletionTextL() const
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    {
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	//return command completion text
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	return QString();
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    }
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QString GlxCommandHandlerRename::GetName(MGlxMediaList& aMediaList) const
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    {
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        // Create an iterator to retrieve the relevant attribute
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    TGlxSelectionIterator iterator;
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    // only want the title of one item
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	iterator.SetRange( 1 );
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    CGlxAttributeContext* context = new( ELeave )
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        CGlxAttributeContext( &iterator );
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	CleanupStack::PushL( context );
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	// Want to read the title attribute    
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    // Configure the context
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	context->AddAttributeL( KMPXMediaGeneralTitle );
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	// Add the context to the media list
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	aMediaList.AddContextL( context, KGlxFetchContextPriorityBlocking );
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    // TGlxContextRemover will remove the context when it goes out of scope
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    // Used here to avoid a trap and still have safe cleanup    
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    TGlxFetchContextRemover contextRemover( context, aMediaList );
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    // put to cleanupstack as cleanupstack is emptied before stack objects
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    // are deleted
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    CleanupClosePushL( contextRemover );
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	// Yuck - a leave and a return code!
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	// EFalse => don't show a progress dialog
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    TInt err = GlxAttributeRetriever::RetrieveL( *context, aMediaList, EFalse );
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    // Using a distinct error value as "LeaveIfError( FuncL() );" looks bad
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    User::LeaveIfError( err );
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    // context off the list
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    CleanupStack::PopAndDestroy( &contextRemover );
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    // Now get the title of the relevant item: if *an* item is selected use its
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    // title, otherwise use the item with focus
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	// Get the index of the item to rename
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    TInt index = KErrNotFound;
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    QString title = NULL;
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	// first see if there's a selected item...
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    if ( aMediaList.SelectionCount() == 1 )
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    	{
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        // Find the index of the selected item
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    	index = aMediaList.Count();
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    	do
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            {
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            --index;
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            }
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        while ( !aMediaList.IsSelected( index ) && index > 0 );
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    	}
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    else
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    	{
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    	// Use the index of the item with focus
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       	index = aMediaList.FocusIndex();
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    	}
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	if ( index != KErrNotFound )
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		{
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        // use iterator to get the right item
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        iterator.SetToFirst( &aMediaList );
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        const CGlxMedia* media = aMediaList.Item( iterator++ ).Properties();
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		if( media )
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			{
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			// found the item's media properties, extract the title
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            const TDesC& titleDesc = media->ValueText(KMPXMediaGeneralTitle);
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            title = QString::fromUtf16(titleDesc.Ptr(),
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                    titleDesc.Length());
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			}
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		}
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    CleanupStack::PopAndDestroy( context );
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    return title;
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    }
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void GlxCommandHandlerRename::HandleErrorL(TInt aErrorCode)
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	{
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    if(aErrorCode == KErrAlreadyExists)
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        {
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        HbMessageBox::warning("Name Already Exist!!!", new HbLabel(
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                "Rename"));
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        }
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	else{
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		GlxMpxCommandHandler::HandleErrorL(aErrorCode);
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		}	
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	}
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   160