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Artigo

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Originado de Folder handling in Symbian C++

Por ivocalado

Última alteração feita por hamishwillee em 16 Aug 2012

Nos trechos de código abaixo são apresentadas diferentes funções para realização de operações que podem ser aplicadas em direrórios, usando Symbian C++

Bibliotecas:

LIBRARY efsrv.lib bafl.lib

Cabeçalho: FolderOpers.h

#include <e32base.h>
 
class FolderOpers
{
    public:
        static void CallCreate();
        static void CallDelete();
        static void CallDeleteFolderAndFiles();
        static void CallDeleteFolderTree();
        static void CallIsFolder();
        static void CallDeleteSpecificFiles(TDesC& aWild);
 
        static TBool MkDir(const TDesC &aPath); //RFs
 
        //The directory must be empty and cannot be the root directory.
        static TBool RmDir(const TDesC &aPath); //RFs
 
        //The directory may not be empty and can remove all sub files too
        static TBool RmDirAndFiles(const TDesC &aDirName); // CFileMan
 
        static TBool RmSpecificFiles(TDesC& aWild); // CFileMan
};

Fonte: FolderOpers.cpp

#include <f32file.h>
#include <bautils.h>
#include <aknnotewrappers.h>
 
#include "FolderOpers.h"
 
_LIT(KFolderPath,"\\System\\Test\\");
_LIT(KDirectoryName,"\\System\\Test\\");
 
 
void FolderOpers::CallCreate()
{
    CAknInformationNote* info = new (ELeave) CAknInformationNote;
    TBuf16<50folderPath;
    folderPath.Copy(KFolderPath);
 
    if(MkDir(folderPath))
        info->ExecuteLD(_L("Folder Created"));
    else
        info->ExecuteLD(_L("Folder Not Created"));
}
 
void FolderOpers::CallDelete()
{
    CAknInformationNote* info = new (ELeave) CAknInformationNote;
    TBuf16<50folderPath;
    folderPath.Copy(KFolderPath);
 
    if(RmDir(folderPath))
        info->ExecuteLD(_L("Folder Deleted"));
    else
        info->ExecuteLD(_L("Folder Not Deleted"));
}
 
void FolderOpers::CallDeleteFolderAndFiles()
{
    CAknInformationNote* info = new (ELeave) CAknInformationNote;
    TBuf16<50directoryPath;
    directoryPath.Copy(KDirectoryName);
 
    if(RmDirAndFiles(directoryPath))
        info->ExecuteLD(_L("Folder n Files Deleted"));
    else
        info->ExecuteLD(_L("Folder n Files Not Deleted"));
}
 
void FolderOpers::CallDeleteFolderTree()
{
    CAknInformationNote* info = new (ELeave) CAknInformationNote;
    TBuf16<50directoryPath;
    directoryPath.Copy(KDirectoryName);
 
    if(RmDirAndFiles(directoryPath))
        info->ExecuteLD(_L("FolderTree Deleted"));
    else
        info->ExecuteLD(_L("FolderTree Not Deleted"));
}
 
void FolderOpers::CallDeleteSpecificFiles(TDesC& aWild)
{
    CAknInformationNote* info = new (ELeave) CAknInformationNote;
 
    TBuf16<50folderPath;
    folderPath.Copy(KDirectoryName);
    folderPath.Append(aWild);
 
    if(RmSpecificFiles(folderPath))
        info->ExecuteLD(_L("Files Deleted"));
    else
        info->ExecuteLD(_L("Files Not Deleted"));
}
 
TBool FolderOpers::MkDir(const TDesC &aPath)
{
    RFs fs;
    fs.Connect();
 
    TInt err=fs.MkDir(aPath);
    fs.Close();
    return err==KErrNone;
}
 
TBool FolderOpers::RmDir(const TDesC &aPath)
{
    RFs fs;
    fs.Connect();
 
    TInt err=fs.RmDir(aPath);
    fs.Close();
    return err==KErrNone;
}
 
TBool FolderOpers::RmDirAndFiles(const TDesC &aDirName)
{
    RFs fs;
    fs.Connect();
 
    CFileMan* fileMan=CFileMan::NewL(fs);
    CleanupStack::PushL(fileMan);
 
    TInt err=fileMan->RmDir(aDirName);
 
    CleanupStack::PopAndDestroy(fileMan);
    fs.Close();
 
    return err==KErrNone;
}
 
TBool FolderOpers::RmSpecificFiles(TDesC& aWild)
{
    RFs fs;
    fs.Connect();
 
    CFileMan* fileMan=CFileMan::NewL(fs);
    CleanupStack::PushL(fileMan);
 
    TInt err=fileMan->Delete(aWild);
 
    CleanupStack::PopAndDestroy(fileMan);
    fs.Close();
 
    return err==KErrNone;
}

• Cole o arquivo de cabeçalho FolderOpers.h no diretório inc.
• Cole o arquivo FolderOpers.cpp no diretório src .
• Inclua o arquivo FolderOpers.h no arquivo CYrAppUi.cpp , da seguinte forma:

#include "FolderOpers.h"

• Finalmente chame essas funções da função HandleCommand() do arquivo CYrAppUi.Cpp, como a seguir:

void CYrAppUi::HandleCommandL( TInt aCommand )
{
    switch( aCommand )
    {
        case EEikCmdExit:
        case EAknSoftkeyExit:
            Exit();
            break;
 
        case ELFolderOperaionsCreateFolder:
            FolderOpers::CallCreate();
            break;
 
        case ELFolderOperaionsDeleteFolder:
            FolderOpers::CallDelete();
            break;
 
        case ELFolderOperaionsDeleteFolderAndFiles:
            FolderOpers::CallDeleteFolderAndFiles();
            break;
 
        case ELFolderOperaionsDeleteFolderTree:
            FolderOpers::CallDeleteFolderTree();
            break;
 
        case ELFolderOperationsDeleteSpecificFiles:
            FolderOpers::CallDeleteSpecificFiles(_L("*.xml"));
            break;
 
        default:
            break;        
    }
}