swiper/src/components/core/events/onResize.js

Most modern mobile touch slider and framework with hardware accelerated transitions

export default function () {
  const swiper = this;

  const { params, el } = swiper;

  if (el && el.offsetWidth === 0) return;

  // Breakpoints
  if (params.breakpoints) {
    swiper.setBreakpoint();
  }

  // Save locks
  const { allowSlideNext, allowSlidePrev, snapGrid } = swiper;

  // Disable locks on resize
  swiper.allowSlideNext = true;
  swiper.allowSlidePrev = true;

  swiper.updateSize();
  swiper.updateSlides();

  if (params.freeMode) {
    const newTranslate = Math.min(Math.max(swiper.translate, swiper.maxTranslate()), swiper.minTranslate());
    swiper.setTranslate(newTranslate);
    swiper.updateActiveIndex();
    swiper.updateSlidesClasses();

    if (params.autoHeight) {
      swiper.updateAutoHeight();
    }
  } else {
    swiper.updateSlidesClasses();
    if ((params.slidesPerView === 'auto' || params.slidesPerView > 1) && swiper.isEnd && !swiper.params.centeredSlides) {
      swiper.slideTo(swiper.slides.length - 1, 0, false, true);
    } else {
      swiper.slideTo(swiper.activeIndex, 0, false, true);
    }
  }
  if (swiper.autoplay && swiper.autoplay.running && swiper.autoplay.paused) {
    swiper.autoplay.run();
  }
  // Return locks after resize
  swiper.allowSlidePrev = allowSlidePrev;
  swiper.allowSlideNext = allowSlideNext;

  if (swiper.params.watchOverflow && snapGrid !== swiper.snapGrid) {
    swiper.checkOverflow();
  }
}