import { Slides } from '../slides' ; import { updateClasses } from './swiper-classes' ; export function updateActiveIndex ( s ) { var translate = s . _rtl ? s . _translate : - s . _translate ; var newActiveIndex ; var i ; var snapIndex ; for ( i = 0 ; i < s . _slidesGrid . length ; i ++ ) { if ( typeof s . _slidesGrid [ i + 1 ] !== 'undefined' ) { if ( translate >= s . _slidesGrid [ i ] && translate < s . _slidesGrid [ i + 1 ] - ( s . _slidesGrid [ i + 1 ] - s . _slidesGrid [ i ] ) / 2 ) { newActiveIndex = i ; } else if ( translate >= s . _slidesGrid [ i ] && translate < s . _slidesGrid [ i + 1 ] ) { newActiveIndex = i + 1 ; } } else { if ( translate >= s . _slidesGrid [ i ] ) { newActiveIndex = i ; } } } snapIndex = Math . floor ( newActiveIndex / s . slidesPerGroup ) ; if ( snapIndex >= s . _snapGrid . length ) snapIndex = s . _snapGrid . length - 1 ; if ( newActiveIndex === s . _activeIndex ) { return ; } s . _snapIndex = snapIndex ; s . _previousIndex = s . _activeIndex ; s . _activeIndex = newActiveIndex ; updateClasses ( s ) ; updateRealIndex ( s ) ; } export function updateRealIndex ( s ) { var activeSlide = < any > s . _slides [ s . _activeIndex ] ; if ( activeSlide ) { s . realIndex = parseInt ( activeSlide . getAttribute ( 'data-swiper-slide-index' ) || s . _activeIndex , 10 ) ; } }