Only save prevPos and set cursor when left button clicked
Only save prevPos and set cursor when left button clicked

nanaya/moebooru,euank/moebooru-thin,moebooru/moebooru,euank/moebooru-thin,moebooru/moebooru,euank/moebooru-thin,nanaya/moebooru,nanaya/moebooru,nanaya/moebooru,nanaya/moebooru,moebooru/moebooru,moebooru/moebooru,moebooru/moebooru,euank/moebooru-thin,euank/moebooru-thin