filelistengine.cpp

nokia S60_video_operation

/*
* ============================================================================
*  Name     : CFileListEngine from FileListEngine.h
*  Part of  : Video Recording Example (VRex)
*  Created  : 16.03.2004 by Nokia Forum
*  Description: Declares file list engine
*
*  Version  :
*  Copyright: Nokia Corporation
* ============================================================================
*/
#include "FileListEngine.h"
#include "Filelist.hrh"     // enumerations
#include <PathInfo.h>		// for PathInfo
 
// Number, name and file size
_LIT(KStringSize,"%d\t%S\t%d bytes");
// Number, name and date modified
_LIT(KStringDate,"%d\t%S\t%S"); 

/*
-----------------------------------------------------------------------------

	void CFileListEngine::ConstructL()

	Description: Second phase constructor.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::ConstructL()
	{
    }

/*
-----------------------------------------------------------------------------

	CFileListEngine::~CFileListEngine()

	Description: Destructor.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
CFileListEngine::~CFileListEngine()
    {
    // Delete directory list
    delete iDirList;
    iDirList = NULL;
    
    iFsSession.Close();
    }

/*
-----------------------------------------------------------------------------

	TInt CFileListEngine::StartFileList()

	Description: This method reads the appropriate directory list.
	Comments   :

    Return values: Error code

-----------------------------------------------------------------------------
*/
TInt CFileListEngine::StartFileList()
    {
    if (iDirList)
        {        
        delete iDirList;
        iDirList = 0;
        }    
        
    TInt error = KErrNone;
	
	// Root path in phone memory 
	TFileName rootPath = PathInfo::PhoneMemoryRootPath();
   
    // Connect to file server
    User::LeaveIfError(iFsSession.Connect()); 

	switch (iDirectory)
        {
        // Get dir. KEntryAttNormal means that no hidden files or directories are included
        case EFileListSounds:
	        rootPath.Append(PathInfo::SoundsPath());
            error = iFsSession.GetDir(rootPath,KEntryAttNormal,ESortByName,iDirList);
            break;
        case EFileListPictures:
        	rootPath.Append(PathInfo::GmsPicturesPath());
            error = iFsSession.GetDir(rootPath,KEntryAttNormal,ESortByName,iDirList);
            break;
        case EFileListVideos:
	        rootPath.Append(PathInfo::VideosPath());
            error = iFsSession.GetDir(rootPath,KEntryAttNormal,ESortByName,iDirList);
            break;
        default:
	        rootPath.Append(PathInfo::GmsPicturesPath());
            error = iFsSession.GetDir(rootPath,KEntryAttNormal,ESortByName,iDirList);
            break;
        }

    return error;
    }

/*
-----------------------------------------------------------------------------

	void CFileListEngine::GetFileListItems(CDesCArray* aItems)

	Description: This method constructs the listbox items with directory 
			     information.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::GetFileListItems(CDesCArray* aItems)
    {
    if(!iDirList)
        return;
                       
    for (TInt i=0;i<iDirList->Count();i++)
        {
        TFileName filename = NULL;
        if(iSizeDate==EFileListSize)
            {
            // Show file size
            filename.Format(KStringSize,i+1,&(*iDirList)[i].iName,(*iDirList)[i].iSize);
            }
        else
            {
            // Fix the date and time string of last modification
            TBuf<30> dateString; 
            _LIT(KDateString,"%D%M%Y%/0%1%/1%2%/2%3%/3 %-B%:0%J%:1%T%:2%S%:3%+B");
            (*iDirList)[i].iModified.FormatL(dateString,KDateString); 

            // Show date modified
            filename.Format(KStringDate,i+1,&(*iDirList)[i].iName,&dateString);
            }
        aItems->AppendL(filename);
        }        
    }

/*
-----------------------------------------------------------------------------

	void CFileListEngine::SetDirectory(TInt aDirectory)

	Description: This method sets which directory to list.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::SetDirectory(TInt aDirectory)
    {
    if (aDirectory!=EFileListDirNoChange)
        iDirectory=aDirectory;
    }

/*
-----------------------------------------------------------------------------

	void CFileListEngine::LaunchCurrent(TInt aPosition)

	Description: This method launches selected item with DocumentHandler.
				 DocumentHandler will launch correct application depending 
				 on the file type.
	Comments   : Note that all the extensions do not work on emulator.

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::LaunchCurrent(TInt aPosition)
    {

    if(!iDirList)
        return;

     //Launch current item in the list
 	CDocumentHandler* handler = CDocumentHandler::NewL(NULL);
    CleanupStack::PushL(handler);
    TFileName descr = PathInfo::PhoneMemoryRootPath();
    // Use appropriate directory path for launching file
    switch (iDirectory)
        {   
        case EFileListSounds:
            descr.Append(PathInfo::SoundsPath());
            break;
        case EFileListPictures:
            descr.Append(PathInfo::GmsPicturesPath());
            break;
        case EFileListVideos:
            descr.Append(PathInfo::VideosPath());
            break;
        default:
            descr.Append(PathInfo::SoundsPath());
            break;
        }
    // Add filename to be launched
    descr.Append((*iDirList)[aPosition].iName);
    // Create nullType. This makes the DocumentHandler to figure out the posfix for us.
    TDataType nullType;
    // Launch the appropriate application for this file
    handler->OpenFileL(descr,nullType);
    CleanupStack::PopAndDestroy(); // handler
    }

/*
-----------------------------------------------------------------------------

	TBool CFileListEngine::RemoveItems(CDesCArray* aItems)

	Description: This method removes all listbox items when a new list 
			     needs to be shown.
	Comments   :

    Return values: true if removed, false if not removed

-----------------------------------------------------------------------------
*/
TBool CFileListEngine::RemoveItems(CDesCArray* aItems)
    {
    if(iDirList)
        {        
        if (iDirList->Count())
            {
            aItems->Delete(0,(iDirList->Count()));
            return ETrue;
            }
        }    
    return EFalse;
    }

/*
-----------------------------------------------------------------------------

	void CFileListEngine::SetSizeDate(TInt aSizeDate)

	Description: This method sets whether modification date or file size 
				 is shown. There is also an option for toggling the status.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::SetSizeDate(TInt aSizeDate)
    {
    if (aSizeDate==EFileListToggle)
        if (iSizeDate==EFileListSize)
            iSizeDate=EFileListDate;
        else
            iSizeDate=EFileListSize;
    else
        if (aSizeDate!=EFileListSizeDateNoChange)
            iSizeDate=aSizeDate;
    }

/*
-----------------------------------------------------------------------------

	void CFileListEngine::EndFileList()

	Description: This method ends the file server session.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::EndFileList()
    {
    // Close the file server session
    iFsSession.Close();
    }

/*
-----------------------------------------------------------------------------

	void CFileListEngine::GetVideoFilePathAndNameAtPositon(TInt aPosition, 
	                      TDes &aName)

	Description: This method gets the video file name at the listbox position.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CFileListEngine::GetVideoFilePathAndNameAtPositon(TInt aPosition, TDes &aName)
	{
    if(!iDirList)
        return;
	
	aName.Append(PathInfo::PhoneMemoryRootPath());
    // Use appropriate directory path for launching file
    switch (iDirectory)
        {   
        case EFileListSounds:
            aName.Append(PathInfo::SoundsPath());
            break;
        case EFileListPictures:
            aName.Append(PathInfo::GmsPicturesPath());
            break;
        case EFileListVideos:
            aName.Append(PathInfo::VideosPath());
            break;
        default:
            aName.Append(PathInfo::SoundsPath());
            break;
        }
    // Add filename to be launched
    aName.Append((*iDirList)[aPosition].iName);
	}