$_basename= ''
$_dirname= ''
$_list= ''
$_previewFilename= ''
__construct( $previewFilename ) : void
append( $path ) : void
getCount( ) : void
getFileByTimestamp( $timestamp ) : string
Returns full path to history file by timestamp. This function returns file path even if file doesn't exist
getFirst( ) : void
getLast( ) : void
getNext( ) : void
getNth( $index ) : void
restoreByTimestamp( $timestamp ) : void
undoRestore( ) : void