C++ CMsvAttachment::SetSize方法代码示例

// ----------------------------------------------------------------------------
// CIpsPlgNewChildPartFromFileOperation::InitAttachmentManagerL
// ----------------------------------------------------------------------------
//
void CIpsPlgNewChildPartFromFileOperation::InitAttachmentManagerL()
    {
    iEntry = NULL;
    iMessage = NULL;
    RFile file;
    TInt fileSize( 0 );

    // Read attachment size
    User::LeaveIfError(
        file.Open( iMsvSession.FileSession(), iFilePath->Des(), EFileShareReadersOnly )
        );
 
    //in rare case that file has disappeared while sending
    //we just won't get the size for it
    file.Size( fileSize );
    file.Close();    

    // Initialize CMsvAttachment instance for the attachment creation
    CMsvAttachment* info = CMsvAttachment::NewL( CMsvAttachment::EMsvFile );
    CleanupStack::PushL( info );

    info->SetAttachmentNameL( iFilePath->Des() );
    info->SetSize( fileSize );

    // Create/acquire Symbian message entry objects
    GetMessageEntryL( iMessageId.Id(), iEntry, iMessage );

    // Start attachment creation
    iMessage->AttachmentManager().AddAttachmentL( 
        iFilePath->Des(), info, iStatus );
    CleanupStack::Pop( info ); // attachment manager takes ownership
    iStep = EPrepareMsvEntry; // Next step
    SetActive();
    }

void CMtfTestActionSmtpAddLinkedAttachment::RunTestL()
	{
	CMsvSession* paramSession = ObtainParameterReferenceL<CMsvSession>(TestCase(),ActionParameters().Parameter(0));
	TMsvId messageEntry = ObtainValueParameterL<TMsvId>(TestCase(),ActionParameters().Parameter(1));
	HBufC* paramFilePath   = ObtainParameterReferenceL<HBufC>(TestCase(),ActionParameters().Parameter(2));
	HBufC8* paramMimeType = ObtainParameterReferenceL<HBufC8>(TestCase(),ActionParameters().Parameter(3));

	CMsvEntry* entry = paramSession->GetEntryL(messageEntry);
	CleanupStack::PushL(entry);
	
	CImEmailMessage* emailMsg = CImEmailMessage::NewL(*entry);
	CleanupStack::PushL(emailMsg);
	
	CMtfAsyncWaiter* waiter = CMtfAsyncWaiter::NewL();
	CleanupStack::PushL(waiter);
	
	CMsvAttachment* attachment = CMsvAttachment::NewL(CMsvAttachment::EMsvLinkedFile);
	CleanupStack::PushL(attachment);
	
	attachment->SetMimeTypeL(*paramMimeType);
	
	TParse fileNameParser;
	User::LeaveIfError(fileNameParser.Set(*paramFilePath, NULL, NULL));
	attachment->SetAttachmentNameL(fileNameParser.NameAndExt());
	
	TEntry fileEntry;
	User::LeaveIfError(paramSession->FileSession().Entry( fileNameParser.FullName(), fileEntry));
	attachment->SetSize(fileEntry.iSize);

	MMsvAttachmentManager& manager = emailMsg->AttachmentManager();
	
	manager.AddLinkedAttachmentL(*paramFilePath, attachment, waiter->iStatus);
	CleanupStack::Pop(attachment); // ownership passed to manager
	waiter->StartAndWait();
	User::LeaveIfError(waiter->Result());
	CleanupStack::PopAndDestroy(waiter);
	
	attachment = NULL;
	
	TInt attachmentCount = manager.AttachmentCount();
	attachment = manager.GetAttachmentInfoL(attachmentCount - 1);
	CleanupStack::PushL(attachment);
	
	TMsvAttachmentId attachmentId = attachment->Id();
	
	CleanupStack::PopAndDestroy(attachment);
	
	CleanupStack::PopAndDestroy(2, entry); // emailMsg, entry
	
	StoreParameterL<TMsvAttachmentId>(TestCase(),attachmentId,ActionParameters().Parameter(4));
	}

void CMtfTestActionAddEntryAttachment::RunTestL()
{
    CMsvSession* paramSession = ObtainParameterReferenceL<CMsvSession>(TestCase(),ActionParameters().Parameter(0));
    TMsvId messageEntry = ObtainValueParameterL<TMsvId>(TestCase(),ActionParameters().Parameter(1));
    TMsvId attachmentMessageEntry = ObtainValueParameterL<TMsvId>(TestCase(),ActionParameters().Parameter(2));

    CMsvEntry* entry = paramSession->GetEntryL(messageEntry);
    CleanupStack::PushL(entry);

    CMsvStore* store = entry->EditStoreL();
    CleanupStack::PushL(store);

    CMtfAsyncWaiter* waiter = CMtfAsyncWaiter::NewL();
    CleanupStack::PushL(waiter);

    CMsvAttachment* attachment = CMsvAttachment::NewL(CMsvAttachment::EMsvMessageEntry);
    CleanupStack::PushL(attachment);

    TMsvEntry attachmentEntry;
    TMsvId attachmentServiceEntry;
    User::LeaveIfError(paramSession->GetEntry(attachmentMessageEntry, attachmentServiceEntry, attachmentEntry));
    attachment->SetSize(attachmentEntry.iSize);

    MMsvAttachmentManager& manager = store->AttachmentManagerL();

    manager.AddEntryAsAttachmentL(attachmentMessageEntry, attachment, waiter->iStatus);
    CleanupStack::Pop(attachment); // ownership passed to manager
    waiter->StartAndWait();
    User::LeaveIfError(waiter->Result());
    CleanupStack::PopAndDestroy(waiter);

    TMsvAttachmentId attachmentId = attachment->Id();

    store->CommitL();

    CleanupStack::PopAndDestroy(2, entry); // store, entry

    StoreParameterL<TMsvAttachmentId>(TestCase(),attachmentId,ActionParameters().Parameter(3));
}

//.........这里部分代码省略.........
		// in the future.

		TMsvId entryId = aEntry.Entry().Id();

		TInt fileNameLength = 2*sizeof(entryId) + 
				KEBookmarkExtension().Length();

		HBufC *fileName = HBufC::NewLC(fileNameLength);
			
		TPtr fileNameDes = fileName->Des();

		// The file name uses the hex representation of the entry Id.
		// If this changes to some other representation then
		// fileNameLength will need to be calculated differently.

		fileNameDes.Num(entryId,EHex);
			
		fileNameDes.Append(KEBookmarkExtension);

		// Get the attachment manager and create an empty attachment file
		CMsvStore* store = aEntry.EditStoreL();
		CleanupStack::PushL(store);
		
		MMsvAttachmentManagerSync& managerSync = store->AttachmentManagerExtensionsL();
		CMsvAttachment* attachment = CMsvAttachment::NewL(CMsvAttachment::EMsvFile);
		CleanupStack::PushL(attachment);
		attachment->SetAttachmentNameL(*fileName);
		RFile file;
		managerSync.CreateAttachmentL(*fileName, file, attachment);
		CleanupStack::Pop(attachment); // ownership passed
		CleanupClosePushL(file);

#ifdef SYMBIAN_BOOKMARK_DATABASE
		// Open the bookmark database ready to add the bookmarks
		RBkDatabase bookmarkDb;
		bookmarkDb.OpenL();
		CleanupClosePushL(bookmarkDb);
#endif // SYMBIAN_BOOKMARK_DATABASE

		// Stream each bookmark into the file.
		// The eBookmark file must contain only 8bit ascii.
		// Add a linefeed to the end of each line.
			
		for(TInt count=0; count < numberOfItems; count++)
			{
			CWWWHotlistItem &item = *iHotlistItemList->At(count);
			
			// Allocate enough space to hold the full bookmark entry.

			TInt length =	item.Name().Length() + 
							item.Url().Length()  + 
							KEBookmarkConstantChars;
			
			HBufC8 *writeBuf = HBufC8::NewLC(length);
			
			TPtr8 des = writeBuf->Des();

			des.Append(KEBookmarkItemBegin);
			des.Append(KEBookmarkItemURL);
			des.Append(item.Url());
			des.Append(KCRLinefeed);
			des.Append(KEBookmarkItemName);
			des.Append(item.Name());
			des.Append(KCRLinefeed);
			des.Append(KEBookmarkType);
			des.Append(KEBookmarkItemEnd);

			User::LeaveIfError(file.Write(des));
			
			CleanupStack::PopAndDestroy();
			
#ifdef SYMBIAN_BOOKMARK_DATABASE
			// Add the bookmark to the bookmark database
			RBkBookmark bookmark = bookmarkDb.CreateBookmarkL();
			CleanupClosePushL(bookmark);
			bookmark.SetTitleL(item.Name());
			// Convert Uri to 8-bit
			HBufC8* bookmarkUri = HBufC8::NewLC(item.Url().Length());
			bookmarkUri->Des().Copy(item.Url());
			bookmark.SetUriL(*bookmarkUri);
			CleanupStack::PopAndDestroy(2, &bookmark); // bookmarkUri, bookmark
#endif // SYMBIAN_BOOKMARK_DATABASE
			}
			
#ifdef SYMBIAN_BOOKMARK_DATABASE			
		// Commit all the added bookmarks and close bookmark db
		bookmarkDb.CommitL();
		CleanupStack::PopAndDestroy(&bookmarkDb);
#endif // SYMBIAN_BOOKMARK_DATABASE

		// File writing has completed, set the size in the attachment
		TInt fileSize = 0;
		User::LeaveIfError(file.Size(fileSize));
		attachment->SetSize(fileSize);
		
		// commit the changes
		store->CommitL();
		CleanupStack::PopAndDestroy(3, fileName); // file, store, fileName
	}
}

//.........这里部分代码省略.........
  	aFile.Name( *filename ); // if this returns error, filename should be empty - no suggestion.
    attaInfo->SetAttachmentNameL( *filename );
    mimeHeaders->SetSuggestedFilenameL( *filename );
    mimeHeaders->SetMimeCharset( KMmsUtf8 );
    
    if ( TMmsGenUtils::DiskSpaceBelowCriticalLevelL( 
        &aFs,
        size * KMmsUnicodeToUtf2MaxIncrease + mimeHeaders->Size() + KMmsIndexEntryExtra,
        aMessageDrive ) )
        {
        // we use standard error code here
        User::Leave( KErrDiskFull );
        }
       
    mimeHeaders->StoreL( *attaInfo ); // Mime headers are streamed into atta info

    MMsvAttachmentManagerSync& attaManSync = aStore.AttachmentManagerExtensionsL();
    
    RFile attaFile;
    attaManSync.CreateAttachmentL( *filename, attaFile, attaInfo );
    CleanupStack::Pop( attaInfo ); // attaInfo ownership was transferred.
    aAttachmentId = attaInfo->Id();

    // Now our file handle is open for writing
    
    error = KErrNone;
    TMmsFileText textFile;
    textFile.Set( aFile );

    while ( error == KErrNone || error == KErrTooBig )
        {
        error = textFile.Read( textPtr );
        TBool appendCRLF = ETrue;
        if ( error == KErrTooBig )
            {
            appendCRLF = EFalse;
            error = KErrNone;
            }
        if ( error != KErrEof )
            {
            // if conversion fails, something is really seriously wrong
            error = CnvUtfConverter::ConvertFromUnicodeToUtf8( buf8, textPtr );
            }
        if ( error == KErrNone )
            {
            error = attaFile.Write( buf8 );
            if ( error == KErrNone )
                {
                fileSize += buf8.Length();
                if ( appendCRLF )
                    {
                    error = attaFile.Write( KMmsCrLf8 );
                    fileSize += KMmsLengthOfCRlf; // add length of carriage return/line feed
                    }
                }
            }
        }
        
    if ( error == KErrEof )
        {
        // end of file has been reached successfully
        error = KErrNone;
        }

    if ( error == KErrNone )
        {
        error = attaFile.Flush();
        }
    attaFile.Close();
    
    if ( error != KErrNone )
        {
        // Something went wrong when we tried to write our data.
        // We must delete the attachment as it does not contain the
        // intended data.
        RemoveAttachmentL( aAttachmentId, aStore );
        aAttachmentId = 0;
        }
    else
        {
        // If data writing was successful, the amount of data written
        // is now stored in fileSize.
        // Attachment info structure must be updated
        MMsvAttachmentManager& attaMan = aStore.AttachmentManagerL();
        attaInfo = attaMan.GetAttachmentInfoL( aAttachmentId );
        CleanupStack::PushL( attaInfo );
        attaInfo->SetSize( fileSize );
        attaManSync.ModifyAttachmentInfoL( attaInfo );
        // attachment manager now owns the attachment info
        CleanupStack::Pop( attaInfo ); // attaInfo
        }
        
    CleanupStack::PopAndDestroy( mimeHeaders );
    CleanupStack::PopAndDestroy( buffer );
    CleanupStack::PopAndDestroy( textBuffer );
    CleanupStack::PopAndDestroy( filename );
    
    User::LeaveIfError( error );
    
    }

// ---------------------------------------------------------
// CMmsAttachmentHandler::CreateTextAttachmentL
// ---------------------------------------------------------
EXPORT_C void CMmsAttachmentHandler::CreateTextAttachmentL(
    CMsvStore& aStore,
    TMsvAttachmentId& aAttachmentId,
    const TDesC& aText,
    const TDesC& aFile,
    RFs& aFs,
    TDriveUnit aMessageDrive,
    TBool aConvertParagraphSeparator /*= ETrue*/ )
    {
    
    HBufC* convertedText = NULL;
    TPtrC text;
    
    if ( aConvertParagraphSeparator )
        {
        convertedText = CMsgTextUtils::ConvertParagraphSeparatorsLC( aText );
        text.Set( convertedText->Des() );
        }
    else
        {
        text.Set( aText );
        }
    
    const TInt KMmsMaxBytesPerCharacter = 4;    
	// coverity[incorrect_multiplication][buffer_alloc]
    HBufC8* buffer = HBufC8::NewL( text.Length() * KMmsMaxBytesPerCharacter ); // paranoid.
    CleanupStack::PushL( buffer );
    TPtr8 buf8 = buffer->Des();

    CMsvMimeHeaders* mimeHeaders = CMsvMimeHeaders::NewL();
    CleanupStack::PushL( mimeHeaders );

    // attaInfo must be on top of stack because the ownership will be transferred
    // to attacment manager.    
    CMsvAttachment* attaInfo = CMsvAttachment::NewL(CMsvAttachment::EMsvFile);
    CleanupStack::PushL( attaInfo );
    
    TPtrC8 contentType;
    contentType.Set( KMmsTextPlain );
    
    TInt position = contentType.Find( KMmsSlash8 );
    mimeHeaders->SetContentTypeL( contentType.Left( position ) );
    mimeHeaders->SetContentSubTypeL( contentType.Mid( position + 1 ) );
    attaInfo->SetMimeTypeL( contentType );
    attaInfo->SetAttachmentNameL( aFile );
    
    mimeHeaders->SetMimeCharset( KMmsUtf8 );
    mimeHeaders->SetSuggestedFilenameL( aFile );
    
    // if conversion fails, something is really seriously wrong
    TInt error = CnvUtfConverter::ConvertFromUnicodeToUtf8( buf8, text );
  
    if ( TMmsGenUtils::DiskSpaceBelowCriticalLevelL( 
        &aFs,
        buf8.Length() + mimeHeaders->Size() + KMmsIndexEntryExtra,
        aMessageDrive ) )
        {
        // we use standard error code here
        User::Leave( KErrDiskFull );
        }
    else
        {
        User::LeaveIfError( error );    
        }
        
    attaInfo->SetSize( buf8.Length() );
    mimeHeaders->StoreL( *attaInfo ); // Mime headers are streamed into atta info

    MMsvAttachmentManagerSync& attaManSync = aStore.AttachmentManagerExtensionsL();
    
    RFile attaFile;
    attaManSync.CreateAttachmentL( aFile, attaFile, attaInfo );
    CleanupStack::Pop( attaInfo ); // attaInfo ownership was transferred.
    aAttachmentId = attaInfo->Id();

    // Now our file handle is open for writing
    
    if ( buf8.Length() > 0 )
        {
        attaFile.Write( buf8 );
        error = attaFile.Flush();
        }
    attaFile.Close();
    
    if ( error != KErrNone )
        {
        // Something went wrong when we tried to write our data.
        // We must delete the attachment as it does not contain the
        // intended data.
        RemoveAttachmentL( aAttachmentId, aStore );
        aAttachmentId = 0;
        }

    CleanupStack::PopAndDestroy( mimeHeaders );
    CleanupStack::PopAndDestroy( buffer );
    
    if ( convertedText )
//.........这里部分代码省略.........