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node_modules/swiper/modules/effect-fade.mjs 1.85 KB
7820380e   “wangming”   1
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  import { e as effectInit } from '../shared/effect-init.mjs';
  import { e as effectTarget } from '../shared/effect-target.mjs';
  import { e as effectVirtualTransitionEnd } from '../shared/effect-virtual-transition-end.mjs';
  import { l as getSlideTransformEl } from '../shared/utils.mjs';
  
  function EffectFade(_ref) {
    let {
      swiper,
      extendParams,
      on
    } = _ref;
    extendParams({
      fadeEffect: {
        crossFade: false
      }
    });
    const setTranslate = () => {
      const {
        slides
      } = swiper;
      const params = swiper.params.fadeEffect;
      for (let i = 0; i < slides.length; i += 1) {
        const slideEl = swiper.slides[i];
        const offset = slideEl.swiperSlideOffset;
        let tx = -offset;
        if (!swiper.params.virtualTranslate) tx -= swiper.translate;
        let ty = 0;
        if (!swiper.isHorizontal()) {
          ty = tx;
          tx = 0;
        }
        const slideOpacity = swiper.params.fadeEffect.crossFade ? Math.max(1 - Math.abs(slideEl.progress), 0) : 1 + Math.min(Math.max(slideEl.progress, -1), 0);
        const targetEl = effectTarget(params, slideEl);
        targetEl.style.opacity = slideOpacity;
        targetEl.style.transform = `translate3d(${tx}px, ${ty}px, 0px)`;
      }
    };
    const setTransition = duration => {
      const transformElements = swiper.slides.map(slideEl => getSlideTransformEl(slideEl));
      transformElements.forEach(el => {
        el.style.transitionDuration = `${duration}ms`;
      });
      effectVirtualTransitionEnd({
        swiper,
        duration,
        transformElements,
        allSlides: true
      });
    };
    effectInit({
      effect: 'fade',
      swiper,
      on,
      setTranslate,
      setTransition,
      overwriteParams: () => ({
        slidesPerView: 1,
        slidesPerGroup: 1,
        watchSlidesProgress: true,
        spaceBetween: 0,
        virtualTranslate: !swiper.params.cssMode
      })
    });
  }
  
  export { EffectFade as default };