hxdir_carbon.cpp

来自「symbian 下的helix player源代码」· C++ 代码 · 共 670 行 · 第 1/2 页

}

BOOL 
CHXDirectory::DeleteFile(const char* szRelPath)
{
	CHXString	relativeStr(szRelPath);
	CHXString 	fullFileStr;
	OSErr		err;
	

	// make a full pathname to the file if we don't have a 
	// directory set (since some callers use a null dir
	// just to delete files)
	
	if (IsPartialMacPath(relativeStr) && (m_strPath.GetLength() > 0))
	{
		// we're deleting for a partial path from the current obj directory

		fullFileStr = m_strPath;
		// add seperator if needed
		if ((fullFileStr.GetLength() > 0) && (fullFileStr.Right(1) != ':'))
		{
		    fullFileStr += ':';
		}
		fullFileStr += relativeStr;
	}
	else
	{
		HX_ASSERT(IsFullMacPath(relativeStr));  // object's dir not set, so this works only for full paths
		
		fullFileStr = relativeStr;
	}
	
	// delete the file
	err = CHXFileSpecUtils::RemoveFile(fullFileStr);
	
	// we really should return an error
	// this gets called frequently if the file doesn't exist - not an error 
	// so return error only if file is busy
	return (err != fBsyErr);
}

/* Sets itself to current directory. */
BOOL 
CHXDirectory::SetCurrentDir()
{
	OSErr err;
	long dirID;
	short vRefNum;
	FSRef currDir;
	
	err = HGetVol(NULL, &vRefNum, &dirID);
	if (err == noErr)
	{
		err = FSMakeFSRef(vRefNum, dirID, NULL, &currDir);
		if (err == noErr)
		{
			CHXDirSpecifier dirSpec(currDir);
			
			SetPath(dirSpec.GetPathName());
		}
	}
	return (err == noErr);

}

/* Makes itself a current directory. */
BOOL 
CHXDirectory::MakeCurrentDir()
{
	CHXDirSpecifier dirSpec(m_strPath);
	
	
	if (dirSpec.IsSet())
	{
		FSRef newDir, oldDir;
		OSErr err;
		
		newDir = (FSRef) dirSpec;
		
		err = FSSetDefault(&newDir, &oldDir);
		return (err == noErr);
		
	}
	return FALSE;
}

UINT32 
CHXDirectory::Rename(const char* szOldName, const char* szNewName)
{
	UINT32		err;
	
	// Unfortunately, the semantics of the parameters for this call aren't clear
	//
	// presumably, szOldName is a full path, or a partial path in the current directory
	// presumably, szNewName is a full path, or just a name
	
	CHXString	oldFileStr(szOldName);
	CHXString	newFileStr(szNewName);
	
	CHXFileSpecifier		oldFileSpec;
	CHXFileSpecifier		newFileSpec;
	CHXDirSpecifier			destDirSpec;
	
	if (oldFileStr.Find(':') >= 0)
	{
		// the old name has a colon; convert it to a file spec
		oldFileSpec = oldFileStr;
	}
	
	if (!oldFileSpec.IsSet())
	{
		// we couldn't get a valid FSSpec for the old name,
		// so assume it's relative to the current directory,
		// and make a file spec for it
		
		CHXDirSpecifier currPathSpec(m_strPath);
		
		oldFileSpec = currPathSpec.SpecifyChildFile((const char *) oldFileStr);
		
	}
	require_action(oldFileSpec.IsSet(), CantGetSourceForRename, err = fnfErr);
	
	if (newFileStr.Find(':') >= 0)
	{
		// the new name has a colon; try to convert it to a file spec
		newFileSpec = newFileStr;
	}
	
	// make a filespec for the destination folder
	//
	// use the directory of the new file if it was specified, otherwise use
	//   the directory of the old file
	FSRef destFSRef;
	
	if (newFileSpec.IsSet())
	{
		CHXDirSpecifier newParentDir = newFileSpec.GetParentDirectory();
		
		err = FSMakeFSRef(newFileSpec.GetVRefNum(), newParentDir.GetDirID(),
			NULL, &destFSRef);
	}
	
	else
	{
		CHXDirSpecifier oldParentDir = oldFileSpec.GetParentDirectory();

		err = FSMakeFSRef(oldFileSpec.GetVRefNum(), oldParentDir.GetDirID(),
			NULL, &destFSRef);
	}
	
	check_noerr(err);
	
	destDirSpec = destFSRef;
	
	// make sure we're not trying to move to another volume
	require_action(destDirSpec.GetVRefNum() == oldFileSpec.GetVRefNum(), CantChangeVolumes, err = HXR_FAILED);

	// they're on the same drive; possibly in different folders

	// use the name from the new file spec, if we have one, or else from the parameter
	HFSUniStr255 uniName;
	
	if (newFileSpec.IsSet())
	{
		uniName = newFileSpec.GetNameHFSUniStr255();
	}
	else
	{
		newFileStr.MakeHFSUniStr255(uniName, CFStringGetSystemEncoding());
	}
	
	FSRef newFSRef;
	
	err = FSMoveRenameObjectUnicode(oldFileSpec, destDirSpec, uniName.length, uniName.unicode,
		kTextEncodingUnknown, &newFSRef);
	if (err == dupFNErr)
	{
		err = FSDeleteObject(newFileSpec);
		if (err == noErr)
		{
			err = FSMoveRenameObjectUnicode(oldFileSpec, destDirSpec, uniName.length, uniName.unicode,
				kTextEncodingUnknown, &newFSRef);
		}
	}
		
		
CantChangeVolumes:
CantGetSourceForRename:

	if (err == noErr) 	err = HXR_OK;
	else			err = HXR_FAILED;
	
	
	return err;
}

// this moves or copies and renames a file
//
// This is not related to the current directory
BOOL
CHXDirectory::MoveRename(const char* szSrcName, const char* szDestName, BOOL bMove)
{
    OSErr err;
    BOOL bOnSameVolume;
    Str255 pascDestFileName;
    
    CHXFileSpecifier srcFileSpec = szSrcName;
    CHXFileSpecifier destFileSpec = szDestName;
    
    CHXDirSpecifier destFileDir = destFileSpec.GetParentDirectory();
    CHXString strDestFileName = destFileSpec.GetName();
    
    // delete anything at our target location
    CHXFileSpecUtils::RemoveFile(destFileSpec);
    
    bOnSameVolume = (srcFileSpec.GetVRefNum() == destFileSpec.GetVRefNum());
    if (bMove && bOnSameVolume)
    {
    	strDestFileName.MakeStr255(pascDestFileName);
    	err = FSpMoveRenameCompat((FSSpec *) srcFileSpec, (FSSpec *) destFileDir, 
    		pascDestFileName);
    }
    
    if (!bMove || !bOnSameVolume)
    {
    	CHXString strBuffer;
    	const int kBufferSize = 40000;
    	
    	char *pBuff = strBuffer.GetBuffer(kBufferSize);
    	check_nonnull(pBuff);
    	
    	strDestFileName.MakeStr255(pascDestFileName);
    	err = FSpFileCopy((FSSpec *) srcFileSpec, (FSSpec *) destFileDir, 
    		pascDestFileName, pBuff, kBufferSize, FALSE);
    }
    
    // should we delete the source if bMove and we successfully copied it?
    
    return (err == noErr);
}

/* Checks if directory is on CD or removable drive. */    
BOOL 
CHXDirectory::IsRemovable()
{
	return CHXFileSpecUtils::IsDiskEjectable(m_strPath);

}

#ifdef _DEBUG
void CHXDirectory::TestHXDir()
{
	char *pszTestDir = "Tenspot:123456789a123456789b123456789c123456789d:";
	char *pszScanDir = "Tenspot:";
	char *pszFakeDir = "Tenspot:123456789a123456789b123456789c123456789dXXX:";
	
	CHXDirectory dirTest;
	dirTest.SetPath(pszTestDir);
	
	CHXDirectory dirInvalid;
	dirInvalid.SetPath(pszFakeDir);
	
	BOOL bIsValid = dirTest.IsValid();
	check(bIsValid);
	
	bIsValid = dirInvalid.IsValid();
	check(!bIsValid);
	
	CHXDirectory dirTemp;
	dirTemp.SetTempPath(0, "");
	bIsValid = dirTemp.IsValid();
	check(bIsValid);
	dirTemp.SetTempPath(0, "NotInTemp");
	bIsValid = dirTemp.IsValid();
	check(!bIsValid);

	CHXDirectory dirNew;
	CHXString strNewPath;
	strNewPath = pszTestDir;
	strNewPath += "New Folder";
	dirNew.SetPath(strNewPath);
	bIsValid = dirNew.IsValid();
	check(!bIsValid);
	
	dirNew.Create();
	bIsValid = dirNew.IsValid();
	check(bIsValid);
	
	dirNew.Destroy(TRUE);
	bIsValid = dirNew.IsValid();
	check(!bIsValid);
	
	CHXDirectory oldCurrentDir, newCurrentDir;
	
	oldCurrentDir.SetCurrentDir();
	dirTest.MakeCurrentDir();
	newCurrentDir.SetCurrentDir();
	check(strcmp(oldCurrentDir.GetPath(), dirTest.GetPath()));
	check(!strcmp(newCurrentDir.GetPath(), dirTest.GetPath()));
	oldCurrentDir.MakeCurrentDir();
	
	BOOL bIsRemovable = dirTest.IsRemovable();
	check(!bIsRemovable);
	
	CHXDirectory scanDir;
	scanDir.SetPath(pszScanDir);

	FSOBJ obj;
	char foundPath[4000]; /* Flawfinder: ignore */
	obj = scanDir.FindFirst("*.*", foundPath, 4000);
	while (obj != FSOBJ_NOTVALID)
	{
		obj = scanDir.FindNext(foundPath, 4000);
	}
	
	long dirID;
	OSErr err;
	err = scanDir.GetDirID(dirID);
	FSSpec spec = scanDir.GetFSSpec();

	/*
	CHXString strTemp(pszScanDir);
	CHXString strTempFrog(pszScanDir);
	scanDir.Rename("test", "test frog");
	strTempFrog += "test frog";
	strTemp += "test";
	scanDir.Rename(strTempFrog, strTemp);
	*/
	scanDir.DeleteFile("123456789a123456789b123456789c123456789d copy 1.png");
	

}
#endif _DEBUG