nl_tokens: When listing all categories and user taps on a given category
pl_tokens: function ( categoryId , event ) { event . preventDefault ( ) ; this . refs . scroller . prepareAnimationSync ( ) ; this . setState ( { mode : 'single' , <mask> : categoryId , previousScrollPosition : this . refs . scroller . scrollTop , } , function ( ) { this . refs . scroller . animateAndResetScroll ( 0 , 0 ) ; } ) ; }