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#include "fileHandling.h"
#include <wx/intl.h>
#include <wx/msgdlg.h>
#include "resources.h"
#ifdef FFS_WIN
#include <windows.h>
#endif // FFS_WIN
class RecycleBin
{
public:
RecycleBin() :
recycleBinAvailable(false)
{
#ifdef FFS_WIN
recycleBinAvailable = true;
#endif // FFS_WIN
}
~RecycleBin() {}
bool recycleBinExists()
{
return recycleBinAvailable;
}
bool moveToRecycleBin(const wxString& filename)
{
if (!recycleBinAvailable) //this method should ONLY be called if recycle bin is available
throw RuntimeException(_("Initialization of Recycle Bin failed! It cannot be used!"));
#ifdef FFS_WIN
wxString filenameDoubleNull = filename + wxChar(0);
SHFILEOPSTRUCT fileOp;
fileOp.hwnd = NULL;
fileOp.wFunc = FO_DELETE;
fileOp.pFrom = filenameDoubleNull.c_str();
fileOp.pTo = NULL;
fileOp.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION | FOF_SILENT;
fileOp.fAnyOperationsAborted = false;
fileOp.hNameMappings = NULL;
fileOp.lpszProgressTitle = NULL;
if (SHFileOperation(&fileOp //pointer to an SHFILEOPSTRUCT structure that contains information the function needs to carry out
) != 0 || fileOp.fAnyOperationsAborted) return false;
#else
assert(false);
#endif
return true;
}
private:
bool recycleBinAvailable;
};
//global instance of recycle bin
RecycleBin recyclerInstance;
bool FreeFileSync::recycleBinExists()
{
return recyclerInstance.recycleBinExists();
}
inline
bool moveToRecycleBin(const wxString& filename) throw(RuntimeException)
{
return recyclerInstance.moveToRecycleBin(filename);
}
inline
void FreeFileSync::removeFile(const wxString& filename, const bool useRecycleBin)
{
if (!wxFileExists(filename)) return; //this is NOT an error situation: the manual deletion relies on it!
if (useRecycleBin)
{
if (!moveToRecycleBin(filename))
throw FileError(wxString(_("Error moving to recycle bin: ")) + wxT("\"") + filename + wxT("\""));
return;
}
#ifdef FFS_WIN
if (!SetFileAttributes(
filename.c_str(), //address of filename
FILE_ATTRIBUTE_NORMAL //attributes to set
)) throw FileError(wxString(_("Error deleting file: ")) + wxT("\"") + filename + wxT("\""));
#endif //FFS_WIN
if (!wxRemoveFile(filename))
throw FileError(wxString(_("Error deleting file: ")) + wxT("\"") + filename + wxT("\""));
}
void FreeFileSync::removeDirectory(const wxString& directory, const bool useRecycleBin)
{
if (!wxDirExists(directory)) return; //this is NOT an error situation: the manual deletion relies on it!
if (useRecycleBin)
{
if (!moveToRecycleBin(directory))
throw FileError(wxString(_("Error moving to recycle bin: ")) + wxT("\"") + directory + wxT("\""));
return;
}
wxArrayString fileList;
wxArrayString dirList;
try
{
//should be executed in own scope so that directory access does not disturb deletion!
getAllFilesAndDirs(directory, fileList, dirList);
}
catch (const FileError& e)
{
throw FileError(wxString(_("Error deleting directory: ")) + wxT("\"") + directory + wxT("\""));
}
for (unsigned int j = 0; j < fileList.GetCount(); ++j)
removeFile(fileList[j], useRecycleBin);
dirList.Insert(directory, 0); //this directory will be deleted last
for (int j = int(dirList.GetCount()) - 1; j >= 0 ; --j)
{
#ifdef FFS_WIN
if (!SetFileAttributes(
dirList[j].c_str(), // address of directory name
FILE_ATTRIBUTE_NORMAL // attributes to set
)) throw FileError(wxString(_("Error deleting directory: ")) + wxT("\"") + dirList[j] + wxT("\""));
#endif // FFS_WIN
if (!wxRmdir(dirList[j]))
throw FileError(wxString(_("Error deleting directory: ")) + wxT("\"") + dirList[j] + wxT("\""));
}
}
void FreeFileSync::createDirectory(const wxString& directory, int level)
{
if (wxDirExists(directory))
return;
if (level == 50) //catch endless loop
return;
//try to create directory
if (wxMkdir(directory))
return;
//if not successfull try to create containing folders first
wxString createFirstDir = wxDir(directory).GetName().BeforeLast(GlobalResources::FILE_NAME_SEPARATOR);
//call function recursively
if (createFirstDir.IsEmpty()) return;
createDirectory(createFirstDir, level + 1);
//now creation should be possible
if (!wxMkdir(directory))
{
if (level == 0)
throw FileError(wxString(_("Error creating directory ")) + wxT("\"") + directory + wxT("\""));
}
}
class GetAllFilesSimple : public wxDirTraverser
{
public:
GetAllFilesSimple(wxArrayString& files, wxArrayString& subDirectories) :
m_files(files),
m_dirs(subDirectories) {}
wxDirTraverseResult OnDir(const wxString& dirname)
{
m_dirs.Add(dirname);
return wxDIR_CONTINUE;
}
wxDirTraverseResult OnFile(const wxString& filename)
{
m_files.Add(filename);
return wxDIR_CONTINUE;
}
wxDirTraverseResult OnOpenError(const wxString& openerrorname)
{
wxMessageBox(openerrorname, _("Error"));
return wxDIR_IGNORE;
}
private:
wxArrayString& m_files;
wxArrayString& m_dirs;
};
void FreeFileSync::getAllFilesAndDirs(const wxString& sourceDir, wxArrayString& files, wxArrayString& directories) throw(FileError)
{
files.Clear();
directories.Clear();
//get all files and directories from current directory (and subdirectories)
wxDir dir(sourceDir);
GetAllFilesSimple traverser(files, directories);
if (dir.Traverse(traverser) == (size_t)-1)
throw FileError(wxString(_("Error traversing directory ")) + wxT("\"") + sourceDir + wxT("\""));
}
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