e=t.center,s=t.easing,a=t.list,h=new oe,i=r?eo(r,a,e):eo(n,a,e)+si(n).width*o,u=n?eo(n,a,e):i+si(r).width*o*(ct?-1:1);return{dir:o,show:function(t,e,i){void 0===e&&(e=0);var n=i?"linear":s;return t-=Math.round(t*tt(e,-1,1)),this.translate(e),r&&this.updateTranslates(),e=r?e:tt(e,0,1),oo(this.getItemIn(),"itemin",{percent:e,duration:t,timing:n,dir:o}),r&&oo(this.getItemIn(!0),"itemout",{percent:1-e,duration:t,timing:n,dir:o}),Ze.start(a,{transform:Br(-u*(ct?-1:1),"px")},t,n).then(h.resolve,et),h.promise}...