image/vnd.djvu;             okular %s;        nametemplate=%s.djvu;     test=test "$DISPLAY" != "";     priority=5
image/tiff;                 okular %s;        nametemplate=%s.tiff;     test=test "$DISPLAY" != "";     priority=5
application/x-chm;          okular %s;        nametemplate=%s.chm;      test=test "$DISPLAY" != "";     priority=5
